/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-03 01:06:57,322 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-03 01:06:57,324 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-03 01:06:57,362 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-03 01:06:57,362 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-03 01:06:57,365 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-03 01:06:57,367 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-03 01:06:57,369 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-03 01:06:57,371 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-03 01:06:57,375 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-03 01:06:57,377 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-03 01:06:57,378 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-03 01:06:57,378 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-03 01:06:57,381 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-03 01:06:57,381 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-03 01:06:57,382 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-03 01:06:57,383 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-03 01:06:57,384 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-03 01:06:57,386 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-03 01:06:57,390 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-03 01:06:57,391 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-03 01:06:57,392 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-03 01:06:57,393 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-03 01:06:57,394 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-03 01:06:57,401 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-03 01:06:57,401 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-03 01:06:57,402 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-03 01:06:57,403 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-03 01:06:57,403 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-03 01:06:57,404 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-03 01:06:57,404 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-03 01:06:57,405 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-03 01:06:57,406 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-03 01:06:57,406 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-03 01:06:57,407 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-03 01:06:57,407 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-03 01:06:57,408 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-03 01:06:57,408 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-03 01:06:57,408 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-03 01:06:57,408 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-03 01:06:57,409 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-03 01:06:57,410 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-03 01:06:57,438 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-03 01:06:57,439 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-03 01:06:57,439 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-03 01:06:57,439 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-03 01:06:57,440 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-03 01:06:57,440 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-03 01:06:57,440 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-03 01:06:57,440 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-03 01:06:57,441 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-03 01:06:57,441 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-03 01:06:57,441 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-03 01:06:57,442 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-03 01:06:57,442 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-03 01:06:57,442 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-03 01:06:57,442 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-03 01:06:57,442 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-03 01:06:57,442 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-03 01:06:57,442 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-03 01:06:57,443 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-03 01:06:57,443 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-03 01:06:57,443 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-03 01:06:57,443 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-03 01:06:57,443 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-03 01:06:57,443 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-03 01:06:57,443 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-03 01:06:57,443 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-03 01:06:57,444 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-03 01:06:57,444 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-03 01:06:57,444 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-03 01:06:57,444 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-03 01:06:57,444 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-03 01:06:57,444 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-03 01:06:57,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 01:06:57,445 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-03 01:06:57,445 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-03 01:06:57,445 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-03 01:06:57,445 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-03 01:06:57,445 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-03 01:06:57,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-03 01:06:57,445 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-03 01:06:57,445 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-03 01:06:57,445 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-03 01:06:57,687 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-03 01:06:57,706 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-03 01:06:57,708 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-03 01:06:57,709 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-03 01:06:57,710 INFO L275 PluginConnector]: CDTParser initialized [2023-04-03 01:06:57,711 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c [2023-04-03 01:06:58,919 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-03 01:06:59,169 INFO L351 CDTParser]: Found 1 translation units. [2023-04-03 01:06:59,173 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c [2023-04-03 01:06:59,183 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68e2d97de/4833a05e920e4de8a1711fc5db919085/FLAG30b52acfe [2023-04-03 01:06:59,194 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68e2d97de/4833a05e920e4de8a1711fc5db919085 [2023-04-03 01:06:59,197 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-03 01:06:59,198 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-03 01:06:59,199 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-03 01:06:59,199 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-03 01:06:59,202 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-03 01:06:59,202 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 01:06:59" (1/1) ... [2023-04-03 01:06:59,203 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76e727f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:06:59, skipping insertion in model container [2023-04-03 01:06:59,203 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 01:06:59" (1/1) ... [2023-04-03 01:06:59,211 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-03 01:06:59,256 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-03 01:06:59,517 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c[13010,13023] [2023-04-03 01:06:59,543 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 01:06:59,560 INFO L203 MainTranslator]: Completed pre-run [2023-04-03 01:06:59,624 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c[13010,13023] [2023-04-03 01:06:59,647 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 01:06:59,676 INFO L208 MainTranslator]: Completed translation [2023-04-03 01:06:59,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:06:59 WrapperNode [2023-04-03 01:06:59,677 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-03 01:06:59,678 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-03 01:06:59,678 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-03 01:06:59,678 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-03 01:06:59,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:06:59" (1/1) ... [2023-04-03 01:06:59,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:06:59" (1/1) ... [2023-04-03 01:06:59,713 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:06:59" (1/1) ... [2023-04-03 01:06:59,714 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:06:59" (1/1) ... [2023-04-03 01:06:59,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:06:59" (1/1) ... [2023-04-03 01:06:59,755 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:06:59" (1/1) ... [2023-04-03 01:06:59,774 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:06:59" (1/1) ... [2023-04-03 01:06:59,778 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:06:59" (1/1) ... [2023-04-03 01:06:59,783 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-03 01:06:59,784 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-03 01:06:59,784 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-03 01:06:59,784 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-03 01:06:59,785 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:06:59" (1/1) ... [2023-04-03 01:06:59,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 01:06:59,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 01:06:59,822 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-03 01:06:59,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-03 01:06:59,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-03 01:06:59,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-03 01:06:59,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-03 01:06:59,877 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-03 01:06:59,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-03 01:06:59,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-03 01:06:59,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-03 01:06:59,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-03 01:06:59,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-03 01:06:59,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-03 01:06:59,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2023-04-03 01:06:59,880 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-03 01:06:59,880 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-03 01:06:59,880 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-03 01:06:59,880 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-03 01:06:59,880 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-03 01:06:59,880 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-03 01:06:59,880 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-03 01:06:59,880 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-03 01:06:59,880 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-03 01:06:59,881 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-03 01:06:59,881 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-03 01:06:59,881 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-03 01:06:59,881 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-03 01:06:59,881 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-03 01:06:59,881 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-03 01:06:59,881 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-03 01:06:59,881 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2023-04-03 01:06:59,881 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2023-04-03 01:06:59,882 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-03 01:06:59,882 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-04-03 01:06:59,882 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-04-03 01:06:59,882 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-03 01:06:59,882 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-03 01:06:59,882 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-03 01:06:59,882 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-03 01:06:59,882 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-03 01:06:59,882 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-03 01:06:59,883 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2023-04-03 01:06:59,883 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2023-04-03 01:06:59,883 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2023-04-03 01:06:59,883 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-03 01:06:59,883 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-03 01:06:59,883 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-03 01:06:59,884 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-03 01:06:59,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-03 01:06:59,885 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-03 01:06:59,885 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-03 01:06:59,885 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-03 01:06:59,885 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-03 01:06:59,885 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-03 01:06:59,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-03 01:06:59,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-03 01:06:59,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-03 01:06:59,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-03 01:06:59,886 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-03 01:06:59,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-03 01:06:59,887 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-03 01:06:59,887 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-03 01:06:59,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-03 01:06:59,888 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-03 01:06:59,888 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-03 01:06:59,888 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-03 01:06:59,888 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-03 01:06:59,888 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-03 01:06:59,889 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-03 01:06:59,889 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2023-04-03 01:06:59,889 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-03 01:06:59,889 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-03 01:06:59,889 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-03 01:06:59,889 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-03 01:06:59,889 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-03 01:06:59,889 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-03 01:06:59,889 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-03 01:06:59,890 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-03 01:06:59,890 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-03 01:06:59,890 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-03 01:06:59,890 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-03 01:06:59,890 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-03 01:06:59,891 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-03 01:06:59,891 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-03 01:06:59,891 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-03 01:06:59,891 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-03 01:06:59,892 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-03 01:06:59,892 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2023-04-03 01:06:59,892 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2023-04-03 01:06:59,892 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-03 01:06:59,892 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-03 01:06:59,893 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2023-04-03 01:06:59,893 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-03 01:06:59,893 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-04-03 01:06:59,893 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2023-04-03 01:06:59,893 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-04-03 01:06:59,893 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2023-04-03 01:06:59,893 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-03 01:06:59,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-03 01:06:59,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-03 01:06:59,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-03 01:07:00,069 INFO L236 CfgBuilder]: Building ICFG [2023-04-03 01:07:00,072 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-03 01:07:00,500 INFO L277 CfgBuilder]: Performing block encoding [2023-04-03 01:07:00,620 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-03 01:07:00,620 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-03 01:07:00,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 01:07:00 BoogieIcfgContainer [2023-04-03 01:07:00,624 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-03 01:07:00,626 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-03 01:07:00,626 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-03 01:07:00,629 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-03 01:07:00,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.04 01:06:59" (1/3) ... [2023-04-03 01:07:00,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58364466 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 01:07:00, skipping insertion in model container [2023-04-03 01:07:00,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:06:59" (2/3) ... [2023-04-03 01:07:00,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58364466 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 01:07:00, skipping insertion in model container [2023-04-03 01:07:00,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 01:07:00" (3/3) ... [2023-04-03 01:07:00,632 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product50.cil.c [2023-04-03 01:07:00,647 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-03 01:07:00,648 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-03 01:07:00,699 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-03 01:07:00,704 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;@2fa6172, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-03 01:07:00,704 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-03 01:07:00,707 INFO L276 IsEmpty]: Start isEmpty. Operand has 143 states, 65 states have (on average 1.2615384615384615) internal successors, (82), 78 states have internal predecessors, (82), 46 states have call successors, (46), 29 states have call predecessors, (46), 29 states have return successors, (46), 42 states have call predecessors, (46), 46 states have call successors, (46) [2023-04-03 01:07:00,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-04-03 01:07:00,718 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:07:00,720 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:07:00,721 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:07:00,727 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:07:00,727 INFO L85 PathProgramCache]: Analyzing trace with hash 706784445, now seen corresponding path program 1 times [2023-04-03 01:07:00,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:07:00,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321754479] [2023-04-03 01:07:00,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:00,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:07:00,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:00,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:07:00,968 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:07:00,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321754479] [2023-04-03 01:07:00,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321754479] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:07:00,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:07:00,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-03 01:07:00,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225217587] [2023-04-03 01:07:00,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:07:00,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-03 01:07:00,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:07:01,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-03 01:07:01,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-03 01:07:01,012 INFO L87 Difference]: Start difference. First operand has 143 states, 65 states have (on average 1.2615384615384615) internal successors, (82), 78 states have internal predecessors, (82), 46 states have call successors, (46), 29 states have call predecessors, (46), 29 states have return successors, (46), 42 states have call predecessors, (46), 46 states have call successors, (46) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-03 01:07:01,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:07:01,106 INFO L93 Difference]: Finished difference Result 219 states and 262 transitions. [2023-04-03 01:07:01,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-03 01:07:01,111 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 42 [2023-04-03 01:07:01,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:07:01,121 INFO L225 Difference]: With dead ends: 219 [2023-04-03 01:07:01,121 INFO L226 Difference]: Without dead ends: 110 [2023-04-03 01:07:01,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-03 01:07:01,132 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-03 01:07:01,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 118 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-03 01:07:01,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2023-04-03 01:07:01,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2023-04-03 01:07:01,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 56 states have (on average 1.2142857142857142) internal successors, (68), 66 states have internal predecessors, (68), 31 states have call successors, (31), 27 states have call predecessors, (31), 22 states have return successors, (26), 22 states have call predecessors, (26), 26 states have call successors, (26) [2023-04-03 01:07:01,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 125 transitions. [2023-04-03 01:07:01,176 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 125 transitions. Word has length 42 [2023-04-03 01:07:01,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:07:01,177 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 125 transitions. [2023-04-03 01:07:01,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-03 01:07:01,177 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 125 transitions. [2023-04-03 01:07:01,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-04-03 01:07:01,180 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:07:01,180 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:07:01,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-03 01:07:01,182 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:07:01,183 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:07:01,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1941905288, now seen corresponding path program 1 times [2023-04-03 01:07:01,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:07:01,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320179810] [2023-04-03 01:07:01,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:01,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:07:01,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:01,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:07:01,326 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:07:01,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320179810] [2023-04-03 01:07:01,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320179810] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:07:01,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:07:01,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 01:07:01,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955470094] [2023-04-03 01:07:01,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:07:01,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 01:07:01,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:07:01,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 01:07:01,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 01:07:01,329 INFO L87 Difference]: Start difference. First operand 110 states and 125 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-03 01:07:01,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:07:01,366 INFO L93 Difference]: Finished difference Result 173 states and 196 transitions. [2023-04-03 01:07:01,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 01:07:01,367 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 43 [2023-04-03 01:07:01,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:07:01,368 INFO L225 Difference]: With dead ends: 173 [2023-04-03 01:07:01,369 INFO L226 Difference]: Without dead ends: 102 [2023-04-03 01:07:01,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 01:07:01,371 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 9 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-03 01:07:01,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 183 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-03 01:07:01,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2023-04-03 01:07:01,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2023-04-03 01:07:01,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 51 states have (on average 1.2156862745098038) internal successors, (62), 61 states have internal predecessors, (62), 28 states have call successors, (28), 26 states have call predecessors, (28), 22 states have return successors, (24), 20 states have call predecessors, (24), 24 states have call successors, (24) [2023-04-03 01:07:01,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 114 transitions. [2023-04-03 01:07:01,383 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 114 transitions. Word has length 43 [2023-04-03 01:07:01,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:07:01,383 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 114 transitions. [2023-04-03 01:07:01,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-03 01:07:01,384 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 114 transitions. [2023-04-03 01:07:01,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-04-03 01:07:01,385 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:07:01,385 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:07:01,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-03 01:07:01,386 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:07:01,386 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:07:01,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1643114589, now seen corresponding path program 1 times [2023-04-03 01:07:01,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:07:01,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336644197] [2023-04-03 01:07:01,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:01,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:07:01,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:01,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:07:01,583 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:07:01,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336644197] [2023-04-03 01:07:01,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336644197] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:07:01,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:07:01,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-03 01:07:01,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589099134] [2023-04-03 01:07:01,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:07:01,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-03 01:07:01,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:07:01,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-03 01:07:01,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-04-03 01:07:01,586 INFO L87 Difference]: Start difference. First operand 102 states and 114 transitions. Second operand has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 4 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-04-03 01:07:01,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:07:01,809 INFO L93 Difference]: Finished difference Result 182 states and 207 transitions. [2023-04-03 01:07:01,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 01:07:01,809 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 4 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 46 [2023-04-03 01:07:01,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:07:01,811 INFO L225 Difference]: With dead ends: 182 [2023-04-03 01:07:01,811 INFO L226 Difference]: Without dead ends: 102 [2023-04-03 01:07:01,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-04-03 01:07:01,813 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 103 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-03 01:07:01,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 272 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-03 01:07:01,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2023-04-03 01:07:01,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2023-04-03 01:07:01,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 51 states have (on average 1.196078431372549) internal successors, (61), 60 states have internal predecessors, (61), 28 states have call successors, (28), 26 states have call predecessors, (28), 22 states have return successors, (24), 20 states have call predecessors, (24), 24 states have call successors, (24) [2023-04-03 01:07:01,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 113 transitions. [2023-04-03 01:07:01,830 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 113 transitions. Word has length 46 [2023-04-03 01:07:01,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:07:01,830 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 113 transitions. [2023-04-03 01:07:01,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 4 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-04-03 01:07:01,830 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 113 transitions. [2023-04-03 01:07:01,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-04-03 01:07:01,832 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:07:01,832 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:07:01,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-03 01:07:01,833 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:07:01,833 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:07:01,833 INFO L85 PathProgramCache]: Analyzing trace with hash 939100542, now seen corresponding path program 1 times [2023-04-03 01:07:01,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:07:01,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835105641] [2023-04-03 01:07:01,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:01,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:07:01,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:02,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:07:02,037 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:07:02,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835105641] [2023-04-03 01:07:02,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835105641] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:07:02,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:07:02,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 01:07:02,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746130842] [2023-04-03 01:07:02,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:07:02,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 01:07:02,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:07:02,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 01:07:02,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 01:07:02,039 INFO L87 Difference]: Start difference. First operand 102 states and 113 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 5 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (10), 3 states have call predecessors, (10), 5 states have call successors, (10) [2023-04-03 01:07:02,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:07:02,370 INFO L93 Difference]: Finished difference Result 270 states and 316 transitions. [2023-04-03 01:07:02,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 01:07:02,371 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 5 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (10), 3 states have call predecessors, (10), 5 states have call successors, (10) Word has length 59 [2023-04-03 01:07:02,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:07:02,378 INFO L225 Difference]: With dead ends: 270 [2023-04-03 01:07:02,379 INFO L226 Difference]: Without dead ends: 190 [2023-04-03 01:07:02,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-04-03 01:07:02,388 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 136 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-03 01:07:02,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 148 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-03 01:07:02,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2023-04-03 01:07:02,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 173. [2023-04-03 01:07:02,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 92 states have (on average 1.1630434782608696) internal successors, (107), 101 states have internal predecessors, (107), 40 states have call successors, (40), 39 states have call predecessors, (40), 40 states have return successors, (43), 39 states have call predecessors, (43), 36 states have call successors, (43) [2023-04-03 01:07:02,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 190 transitions. [2023-04-03 01:07:02,423 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 190 transitions. Word has length 59 [2023-04-03 01:07:02,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:07:02,425 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 190 transitions. [2023-04-03 01:07:02,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 5 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (10), 3 states have call predecessors, (10), 5 states have call successors, (10) [2023-04-03 01:07:02,425 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 190 transitions. [2023-04-03 01:07:02,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-04-03 01:07:02,433 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:07:02,433 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:07:02,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-03 01:07:02,434 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:07:02,434 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:07:02,434 INFO L85 PathProgramCache]: Analyzing trace with hash -818419621, now seen corresponding path program 1 times [2023-04-03 01:07:02,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:07:02,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77043861] [2023-04-03 01:07:02,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:02,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:07:02,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:02,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:07:02,595 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:07:02,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77043861] [2023-04-03 01:07:02,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77043861] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:07:02,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:07:02,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-03 01:07:02,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553797874] [2023-04-03 01:07:02,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:07:02,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-03 01:07:02,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:07:02,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-03 01:07:02,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-03 01:07:02,601 INFO L87 Difference]: Start difference. First operand 173 states and 190 transitions. Second operand has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2023-04-03 01:07:02,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:07:02,738 INFO L93 Difference]: Finished difference Result 418 states and 476 transitions. [2023-04-03 01:07:02,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-03 01:07:02,739 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) Word has length 68 [2023-04-03 01:07:02,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:07:02,741 INFO L225 Difference]: With dead ends: 418 [2023-04-03 01:07:02,742 INFO L226 Difference]: Without dead ends: 267 [2023-04-03 01:07:02,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-04-03 01:07:02,743 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 55 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-03 01:07:02,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 419 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-03 01:07:02,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2023-04-03 01:07:02,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 255. [2023-04-03 01:07:02,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 140 states have (on average 1.1642857142857144) internal successors, (163), 153 states have internal predecessors, (163), 56 states have call successors, (56), 55 states have call predecessors, (56), 58 states have return successors, (65), 57 states have call predecessors, (65), 52 states have call successors, (65) [2023-04-03 01:07:02,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 284 transitions. [2023-04-03 01:07:02,778 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 284 transitions. Word has length 68 [2023-04-03 01:07:02,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:07:02,779 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 284 transitions. [2023-04-03 01:07:02,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2023-04-03 01:07:02,779 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 284 transitions. [2023-04-03 01:07:02,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-04-03 01:07:02,781 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:07:02,781 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:07:02,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-03 01:07:02,781 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:07:02,782 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:07:02,782 INFO L85 PathProgramCache]: Analyzing trace with hash 820887263, now seen corresponding path program 1 times [2023-04-03 01:07:02,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:07:02,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136329802] [2023-04-03 01:07:02,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:02,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:07:02,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:03,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:07:03,120 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:07:03,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136329802] [2023-04-03 01:07:03,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136329802] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:07:03,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:07:03,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-03 01:07:03,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591830178] [2023-04-03 01:07:03,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:07:03,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-03 01:07:03,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:07:03,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-03 01:07:03,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-04-03 01:07:03,122 INFO L87 Difference]: Start difference. First operand 255 states and 284 transitions. Second operand has 14 states, 10 states have (on average 3.9) internal successors, (39), 10 states have internal predecessors, (39), 3 states have call successors, (19), 3 states have call predecessors, (19), 6 states have return successors, (13), 7 states have call predecessors, (13), 3 states have call successors, (13) [2023-04-03 01:07:03,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:07:03,426 INFO L93 Difference]: Finished difference Result 475 states and 548 transitions. [2023-04-03 01:07:03,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-03 01:07:03,427 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 10 states have (on average 3.9) internal successors, (39), 10 states have internal predecessors, (39), 3 states have call successors, (19), 3 states have call predecessors, (19), 6 states have return successors, (13), 7 states have call predecessors, (13), 3 states have call successors, (13) Word has length 71 [2023-04-03 01:07:03,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:07:03,429 INFO L225 Difference]: With dead ends: 475 [2023-04-03 01:07:03,429 INFO L226 Difference]: Without dead ends: 324 [2023-04-03 01:07:03,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2023-04-03 01:07:03,430 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 111 mSDsluCounter, 851 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 943 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-03 01:07:03,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 943 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-03 01:07:03,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2023-04-03 01:07:03,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 314. [2023-04-03 01:07:03,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 176 states have (on average 1.1647727272727273) internal successors, (205), 192 states have internal predecessors, (205), 68 states have call successors, (68), 67 states have call predecessors, (68), 69 states have return successors, (83), 69 states have call predecessors, (83), 64 states have call successors, (83) [2023-04-03 01:07:03,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 356 transitions. [2023-04-03 01:07:03,464 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 356 transitions. Word has length 71 [2023-04-03 01:07:03,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:07:03,465 INFO L495 AbstractCegarLoop]: Abstraction has 314 states and 356 transitions. [2023-04-03 01:07:03,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 10 states have (on average 3.9) internal successors, (39), 10 states have internal predecessors, (39), 3 states have call successors, (19), 3 states have call predecessors, (19), 6 states have return successors, (13), 7 states have call predecessors, (13), 3 states have call successors, (13) [2023-04-03 01:07:03,465 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 356 transitions. [2023-04-03 01:07:03,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-04-03 01:07:03,466 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:07:03,466 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:07:03,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-03 01:07:03,467 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:07:03,467 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:07:03,467 INFO L85 PathProgramCache]: Analyzing trace with hash -308326572, now seen corresponding path program 1 times [2023-04-03 01:07:03,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:07:03,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293893917] [2023-04-03 01:07:03,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:03,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:07:03,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:03,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:07:03,625 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:07:03,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293893917] [2023-04-03 01:07:03,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293893917] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:07:03,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:07:03,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-03 01:07:03,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149852119] [2023-04-03 01:07:03,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:07:03,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-03 01:07:03,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:07:03,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-03 01:07:03,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-04-03 01:07:03,627 INFO L87 Difference]: Start difference. First operand 314 states and 356 transitions. Second operand has 7 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 4 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2023-04-03 01:07:03,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:07:03,937 INFO L93 Difference]: Finished difference Result 342 states and 399 transitions. [2023-04-03 01:07:03,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-03 01:07:03,938 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 4 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) Word has length 71 [2023-04-03 01:07:03,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:07:03,941 INFO L225 Difference]: With dead ends: 342 [2023-04-03 01:07:03,941 INFO L226 Difference]: Without dead ends: 339 [2023-04-03 01:07:03,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2023-04-03 01:07:03,942 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 109 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-03 01:07:03,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 256 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-03 01:07:03,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2023-04-03 01:07:03,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 314. [2023-04-03 01:07:03,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 176 states have (on average 1.1590909090909092) internal successors, (204), 192 states have internal predecessors, (204), 68 states have call successors, (68), 67 states have call predecessors, (68), 69 states have return successors, (83), 69 states have call predecessors, (83), 64 states have call successors, (83) [2023-04-03 01:07:03,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 355 transitions. [2023-04-03 01:07:03,981 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 355 transitions. Word has length 71 [2023-04-03 01:07:03,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:07:03,981 INFO L495 AbstractCegarLoop]: Abstraction has 314 states and 355 transitions. [2023-04-03 01:07:03,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 4 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2023-04-03 01:07:03,982 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 355 transitions. [2023-04-03 01:07:03,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-04-03 01:07:03,989 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:07:03,989 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:07:03,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-03 01:07:03,990 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:07:03,990 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:07:03,990 INFO L85 PathProgramCache]: Analyzing trace with hash 2043834435, now seen corresponding path program 1 times [2023-04-03 01:07:03,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:07:03,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835999013] [2023-04-03 01:07:03,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:03,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:07:04,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:04,485 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-04-03 01:07:04,486 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:07:04,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835999013] [2023-04-03 01:07:04,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835999013] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 01:07:04,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613363168] [2023-04-03 01:07:04,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:04,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:07:04,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 01:07:04,493 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 01:07:04,522 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-03 01:07:04,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:04,638 INFO L262 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 33 conjunts are in the unsatisfiable core [2023-04-03 01:07:04,646 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 01:07:05,014 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:07:05,015 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 01:07:05,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [613363168] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:07:05,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 01:07:05,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14] total 22 [2023-04-03 01:07:05,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594622921] [2023-04-03 01:07:05,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:07:05,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-03 01:07:05,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:07:05,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-03 01:07:05,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=390, Unknown=0, NotChecked=0, Total=462 [2023-04-03 01:07:05,020 INFO L87 Difference]: Start difference. First operand 314 states and 355 transitions. Second operand has 14 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 6 states have call successors, (28), 5 states have call predecessors, (28), 7 states have return successors, (22), 7 states have call predecessors, (22), 6 states have call successors, (22) [2023-04-03 01:07:06,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:07:06,117 INFO L93 Difference]: Finished difference Result 620 states and 720 transitions. [2023-04-03 01:07:06,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-04-03 01:07:06,118 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 6 states have call successors, (28), 5 states have call predecessors, (28), 7 states have return successors, (22), 7 states have call predecessors, (22), 6 states have call successors, (22) Word has length 117 [2023-04-03 01:07:06,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:07:06,120 INFO L225 Difference]: With dead ends: 620 [2023-04-03 01:07:06,120 INFO L226 Difference]: Without dead ends: 328 [2023-04-03 01:07:06,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 372 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=220, Invalid=1420, Unknown=0, NotChecked=0, Total=1640 [2023-04-03 01:07:06,122 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 193 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 1302 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 1410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-03 01:07:06,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 297 Invalid, 1410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1302 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-03 01:07:06,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2023-04-03 01:07:06,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 295. [2023-04-03 01:07:06,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 167 states have (on average 1.1377245508982037) internal successors, (190), 181 states have internal predecessors, (190), 66 states have call successors, (66), 66 states have call predecessors, (66), 61 states have return successors, (71), 61 states have call predecessors, (71), 62 states have call successors, (71) [2023-04-03 01:07:06,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 327 transitions. [2023-04-03 01:07:06,151 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 327 transitions. Word has length 117 [2023-04-03 01:07:06,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:07:06,151 INFO L495 AbstractCegarLoop]: Abstraction has 295 states and 327 transitions. [2023-04-03 01:07:06,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 6 states have call successors, (28), 5 states have call predecessors, (28), 7 states have return successors, (22), 7 states have call predecessors, (22), 6 states have call successors, (22) [2023-04-03 01:07:06,152 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 327 transitions. [2023-04-03 01:07:06,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-04-03 01:07:06,153 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:07:06,153 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:07:06,162 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-03 01:07:06,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:07:06,359 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:07:06,360 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:07:06,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1835728041, now seen corresponding path program 2 times [2023-04-03 01:07:06,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:07:06,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633007932] [2023-04-03 01:07:06,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:06,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:07:06,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:06,852 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-04-03 01:07:06,853 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:07:06,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633007932] [2023-04-03 01:07:06,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633007932] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 01:07:06,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2051898841] [2023-04-03 01:07:06,853 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-04-03 01:07:06,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:07:06,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 01:07:06,855 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 01:07:06,884 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-03 01:07:06,995 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-04-03 01:07:06,995 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-04-03 01:07:06,998 INFO L262 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 51 conjunts are in the unsatisfiable core [2023-04-03 01:07:07,002 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 01:07:07,409 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-03 01:07:07,409 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-03 01:07:08,256 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-04-03 01:07:08,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2051898841] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-03 01:07:08,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1003479613] [2023-04-03 01:07:08,276 INFO L159 IcfgInterpreter]: Started Sifa with 92 locations of interest [2023-04-03 01:07:08,277 INFO L166 IcfgInterpreter]: Building call graph [2023-04-03 01:07:08,280 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-03 01:07:08,284 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-03 01:07:08,284 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-03 01:07:08,506 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 28 for LOIs [2023-04-03 01:07:08,551 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 32 for LOIs [2023-04-03 01:07:08,736 INFO L197 IcfgInterpreter]: Interpreting procedure runTest with input of size 32 for LOIs [2023-04-03 01:07:08,782 INFO L197 IcfgInterpreter]: Interpreting procedure setup with input of size 24 for LOIs [2023-04-03 01:07:08,786 INFO L197 IcfgInterpreter]: Interpreting procedure select_features with input of size 24 for LOIs [2023-04-03 01:07:08,790 INFO L197 IcfgInterpreter]: Interpreting procedure test with input of size 32 for LOIs [2023-04-03 01:07:11,642 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 57 for LOIs [2023-04-03 01:07:11,668 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 26 for LOIs [2023-04-03 01:07:11,836 INFO L197 IcfgInterpreter]: Interpreting procedure __utac_acc__Specification4_spec__1 with input of size 20 for LOIs [2023-04-03 01:07:11,874 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 22 for LOIs [2023-04-03 01:07:11,877 INFO L197 IcfgInterpreter]: Interpreting procedure __automaton_fail with input of size 30 for LOIs [2023-04-03 01:07:11,879 INFO L197 IcfgInterpreter]: Interpreting procedure getWaterLevel with input of size 20 for LOIs [2023-04-03 01:07:11,881 INFO L197 IcfgInterpreter]: Interpreting procedure lowerWaterLevel with input of size 26 for LOIs [2023-04-03 01:07:11,885 INFO L197 IcfgInterpreter]: Interpreting procedure valid_product with input of size 24 for LOIs [2023-04-03 01:07:11,888 INFO L197 IcfgInterpreter]: Interpreting procedure select_helpers with input of size 24 for LOIs [2023-04-03 01:07:11,890 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment with input of size 29 for LOIs [2023-04-03 01:07:12,063 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 27 for LOIs [2023-04-03 01:07:12,229 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterLevel with input of size 22 for LOIs [2023-04-03 01:07:12,294 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterSensorDry with input of size 22 for LOIs [2023-04-03 01:07:12,299 INFO L197 IcfgInterpreter]: Interpreting procedure activatePump with input of size 34 for LOIs [2023-04-03 01:07:12,302 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 23 for LOIs [2023-04-03 01:07:12,304 INFO L197 IcfgInterpreter]: Interpreting procedure isLowWaterLevel with input of size 23 for LOIs [2023-04-03 01:07:12,354 INFO L197 IcfgInterpreter]: Interpreting procedure isLowWaterSensorDry with input of size 23 for LOIs [2023-04-03 01:07:12,358 INFO L180 IcfgInterpreter]: Interpretation finished [2023-04-03 01:07:15,978 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7764#(and (<= 1 |#StackHeapBarrier|) (not (= ~pumpRunning~0 0)) (<= ~pumpRunning~0 2147483647) (= ~methaneLevelCritical~0 0) (= ~head~0.offset 0) (= 1 ~systemActive~0) (= ~head~0.base 0) (<= 0 (+ ~pumpRunning~0 2147483648)) (= |#NULL.offset| 0) (= ~waterLevel~0 0) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2023-04-03 01:07:15,978 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-04-03 01:07:15,978 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-03 01:07:15,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 15, 17] total 36 [2023-04-03 01:07:15,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600853242] [2023-04-03 01:07:15,979 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-03 01:07:15,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-04-03 01:07:15,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:07:15,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-04-03 01:07:15,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=633, Invalid=6849, Unknown=0, NotChecked=0, Total=7482 [2023-04-03 01:07:15,984 INFO L87 Difference]: Start difference. First operand 295 states and 327 transitions. Second operand has 36 states, 25 states have (on average 5.16) internal successors, (129), 29 states have internal predecessors, (129), 11 states have call successors, (59), 12 states have call predecessors, (59), 18 states have return successors, (51), 18 states have call predecessors, (51), 11 states have call successors, (51) [2023-04-03 01:07:19,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:07:19,074 INFO L93 Difference]: Finished difference Result 1518 states and 1945 transitions. [2023-04-03 01:07:19,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-04-03 01:07:19,081 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 25 states have (on average 5.16) internal successors, (129), 29 states have internal predecessors, (129), 11 states have call successors, (59), 12 states have call predecessors, (59), 18 states have return successors, (51), 18 states have call predecessors, (51), 11 states have call successors, (51) Word has length 117 [2023-04-03 01:07:19,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:07:19,092 INFO L225 Difference]: With dead ends: 1518 [2023-04-03 01:07:19,092 INFO L226 Difference]: Without dead ends: 1286 [2023-04-03 01:07:19,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 277 SyntacticMatches, 12 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6500 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=1312, Invalid=13940, Unknown=0, NotChecked=0, Total=15252 [2023-04-03 01:07:19,099 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 1168 mSDsluCounter, 979 mSDsCounter, 0 mSdLazyCounter, 3299 mSolverCounterSat, 1033 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1204 SdHoareTripleChecker+Valid, 1063 SdHoareTripleChecker+Invalid, 4332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1033 IncrementalHoareTripleChecker+Valid, 3299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-04-03 01:07:19,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1204 Valid, 1063 Invalid, 4332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1033 Valid, 3299 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-04-03 01:07:19,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1286 states. [2023-04-03 01:07:19,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1286 to 1047. [2023-04-03 01:07:19,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1047 states, 599 states have (on average 1.1368948247078463) internal successors, (681), 648 states have internal predecessors, (681), 230 states have call successors, (230), 227 states have call predecessors, (230), 217 states have return successors, (292), 217 states have call predecessors, (292), 226 states have call successors, (292) [2023-04-03 01:07:19,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1047 states to 1047 states and 1203 transitions. [2023-04-03 01:07:19,193 INFO L78 Accepts]: Start accepts. Automaton has 1047 states and 1203 transitions. Word has length 117 [2023-04-03 01:07:19,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:07:19,193 INFO L495 AbstractCegarLoop]: Abstraction has 1047 states and 1203 transitions. [2023-04-03 01:07:19,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 25 states have (on average 5.16) internal successors, (129), 29 states have internal predecessors, (129), 11 states have call successors, (59), 12 states have call predecessors, (59), 18 states have return successors, (51), 18 states have call predecessors, (51), 11 states have call successors, (51) [2023-04-03 01:07:19,194 INFO L276 IsEmpty]: Start isEmpty. Operand 1047 states and 1203 transitions. [2023-04-03 01:07:19,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-04-03 01:07:19,196 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:07:19,196 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:07:19,204 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-03 01:07:19,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-04-03 01:07:19,403 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:07:19,403 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:07:19,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1419299377, now seen corresponding path program 3 times [2023-04-03 01:07:19,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:07:19,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668112574] [2023-04-03 01:07:19,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:19,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:07:19,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:20,094 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 35 proven. 18 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-04-03 01:07:20,094 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:07:20,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668112574] [2023-04-03 01:07:20,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668112574] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 01:07:20,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [208583084] [2023-04-03 01:07:20,095 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-04-03 01:07:20,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:07:20,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 01:07:20,097 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 01:07:20,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-03 01:07:20,248 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-04-03 01:07:20,248 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-04-03 01:07:20,252 INFO L262 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 31 conjunts are in the unsatisfiable core [2023-04-03 01:07:20,260 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 01:07:20,517 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-04-03 01:07:20,517 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 01:07:20,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [208583084] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:07:20,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 01:07:20,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [17] total 26 [2023-04-03 01:07:20,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943475965] [2023-04-03 01:07:20,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:07:20,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-03 01:07:20,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:07:20,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-03 01:07:20,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=563, Unknown=0, NotChecked=0, Total=650 [2023-04-03 01:07:20,519 INFO L87 Difference]: Start difference. First operand 1047 states and 1203 transitions. Second operand has 11 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 3 states have call successors, (35), 3 states have call predecessors, (35), 6 states have return successors, (31), 6 states have call predecessors, (31), 3 states have call successors, (31) [2023-04-03 01:07:21,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:07:21,011 INFO L93 Difference]: Finished difference Result 2105 states and 2413 transitions. [2023-04-03 01:07:21,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-03 01:07:21,012 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 3 states have call successors, (35), 3 states have call predecessors, (35), 6 states have return successors, (31), 6 states have call predecessors, (31), 3 states have call successors, (31) Word has length 163 [2023-04-03 01:07:21,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:07:21,017 INFO L225 Difference]: With dead ends: 2105 [2023-04-03 01:07:21,017 INFO L226 Difference]: Without dead ends: 1081 [2023-04-03 01:07:21,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=137, Invalid=793, Unknown=0, NotChecked=0, Total=930 [2023-04-03 01:07:21,021 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 72 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 910 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-03 01:07:21,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 910 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-03 01:07:21,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states. [2023-04-03 01:07:21,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 1042. [2023-04-03 01:07:21,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1042 states, 596 states have (on average 1.1208053691275168) internal successors, (668), 642 states have internal predecessors, (668), 229 states have call successors, (229), 225 states have call predecessors, (229), 216 states have return successors, (268), 215 states have call predecessors, (268), 225 states have call successors, (268) [2023-04-03 01:07:21,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1042 states to 1042 states and 1165 transitions. [2023-04-03 01:07:21,097 INFO L78 Accepts]: Start accepts. Automaton has 1042 states and 1165 transitions. Word has length 163 [2023-04-03 01:07:21,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:07:21,097 INFO L495 AbstractCegarLoop]: Abstraction has 1042 states and 1165 transitions. [2023-04-03 01:07:21,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 3 states have call successors, (35), 3 states have call predecessors, (35), 6 states have return successors, (31), 6 states have call predecessors, (31), 3 states have call successors, (31) [2023-04-03 01:07:21,098 INFO L276 IsEmpty]: Start isEmpty. Operand 1042 states and 1165 transitions. [2023-04-03 01:07:21,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2023-04-03 01:07:21,100 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:07:21,100 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:07:21,109 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-04-03 01:07:21,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:07:21,307 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:07:21,308 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:07:21,308 INFO L85 PathProgramCache]: Analyzing trace with hash -72487691, now seen corresponding path program 1 times [2023-04-03 01:07:21,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:07:21,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698697860] [2023-04-03 01:07:21,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:21,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:07:21,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:22,101 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 64 proven. 35 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-04-03 01:07:22,101 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:07:22,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698697860] [2023-04-03 01:07:22,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698697860] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 01:07:22,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1036544530] [2023-04-03 01:07:22,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:22,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:07:22,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 01:07:22,105 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 01:07:22,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-04-03 01:07:22,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:22,273 INFO L262 TraceCheckSpWp]: Trace formula consists of 664 conjuncts, 56 conjunts are in the unsatisfiable core [2023-04-03 01:07:22,283 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 01:07:22,728 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 132 proven. 19 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-04-03 01:07:22,729 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-03 01:07:24,147 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 71 proven. 5 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-04-03 01:07:24,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1036544530] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-03 01:07:24,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [404023599] [2023-04-03 01:07:24,158 INFO L159 IcfgInterpreter]: Started Sifa with 95 locations of interest [2023-04-03 01:07:24,158 INFO L166 IcfgInterpreter]: Building call graph [2023-04-03 01:07:24,159 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-03 01:07:24,159 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-03 01:07:24,159 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-03 01:07:24,255 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 28 for LOIs [2023-04-03 01:07:24,279 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 32 for LOIs [2023-04-03 01:07:24,387 INFO L197 IcfgInterpreter]: Interpreting procedure runTest with input of size 32 for LOIs [2023-04-03 01:07:24,396 INFO L197 IcfgInterpreter]: Interpreting procedure test with input of size 32 for LOIs [2023-04-03 01:07:25,998 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 38 for LOIs [2023-04-03 01:07:26,003 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 26 for LOIs [2023-04-03 01:07:26,155 INFO L197 IcfgInterpreter]: Interpreting procedure lowerWaterLevel with input of size 26 for LOIs [2023-04-03 01:07:26,159 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment with input of size 29 for LOIs [2023-04-03 01:07:26,319 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 27 for LOIs [2023-04-03 01:07:26,434 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterLevel with input of size 22 for LOIs [2023-04-03 01:07:26,481 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterSensorDry with input of size 22 for LOIs [2023-04-03 01:07:26,484 INFO L197 IcfgInterpreter]: Interpreting procedure activatePump with input of size 34 for LOIs [2023-04-03 01:07:26,487 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 23 for LOIs [2023-04-03 01:07:26,488 INFO L197 IcfgInterpreter]: Interpreting procedure isLowWaterLevel with input of size 23 for LOIs [2023-04-03 01:07:26,552 INFO L197 IcfgInterpreter]: Interpreting procedure isLowWaterSensorDry with input of size 23 for LOIs [2023-04-03 01:07:26,555 INFO L197 IcfgInterpreter]: Interpreting procedure deactivatePump with input of size 33 for LOIs [2023-04-03 01:07:26,558 INFO L197 IcfgInterpreter]: Interpreting procedure setup with input of size 24 for LOIs [2023-04-03 01:07:26,560 INFO L197 IcfgInterpreter]: Interpreting procedure select_features with input of size 24 for LOIs [2023-04-03 01:07:26,562 INFO L197 IcfgInterpreter]: Interpreting procedure __utac_acc__Specification4_spec__1 with input of size 20 for LOIs [2023-04-03 01:07:26,595 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 22 for LOIs [2023-04-03 01:07:26,596 INFO L197 IcfgInterpreter]: Interpreting procedure __automaton_fail with input of size 30 for LOIs [2023-04-03 01:07:26,598 INFO L197 IcfgInterpreter]: Interpreting procedure getWaterLevel with input of size 20 for LOIs [2023-04-03 01:07:26,599 INFO L197 IcfgInterpreter]: Interpreting procedure valid_product with input of size 24 for LOIs [2023-04-03 01:07:26,601 INFO L197 IcfgInterpreter]: Interpreting procedure select_helpers with input of size 24 for LOIs [2023-04-03 01:07:26,602 INFO L180 IcfgInterpreter]: Interpretation finished [2023-04-03 01:07:30,721 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '17949#(and (<= 1 |#StackHeapBarrier|) (not (= ~pumpRunning~0 0)) (<= ~pumpRunning~0 2147483647) (= ~methaneLevelCritical~0 0) (= ~head~0.offset 0) (= 1 ~systemActive~0) (= ~head~0.base 0) (<= 0 (+ ~pumpRunning~0 2147483648)) (= |#NULL.offset| 0) (= ~waterLevel~0 0) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2023-04-03 01:07:30,721 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-04-03 01:07:30,721 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-03 01:07:30,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 22, 14] total 45 [2023-04-03 01:07:30,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083997894] [2023-04-03 01:07:30,722 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-03 01:07:30,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2023-04-03 01:07:30,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:07:30,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2023-04-03 01:07:30,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=568, Invalid=8552, Unknown=0, NotChecked=0, Total=9120 [2023-04-03 01:07:30,725 INFO L87 Difference]: Start difference. First operand 1042 states and 1165 transitions. Second operand has 45 states, 32 states have (on average 5.5) internal successors, (176), 33 states have internal predecessors, (176), 12 states have call successors, (68), 9 states have call predecessors, (68), 23 states have return successors, (72), 23 states have call predecessors, (72), 12 states have call successors, (72) [2023-04-03 01:07:32,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:07:32,729 INFO L93 Difference]: Finished difference Result 1256 states and 1420 transitions. [2023-04-03 01:07:32,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-04-03 01:07:32,729 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 32 states have (on average 5.5) internal successors, (176), 33 states have internal predecessors, (176), 12 states have call successors, (68), 9 states have call predecessors, (68), 23 states have return successors, (72), 23 states have call predecessors, (72), 12 states have call successors, (72) Word has length 201 [2023-04-03 01:07:32,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:07:32,730 INFO L225 Difference]: With dead ends: 1256 [2023-04-03 01:07:32,730 INFO L226 Difference]: Without dead ends: 0 [2023-04-03 01:07:32,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 657 GetRequests, 518 SyntacticMatches, 22 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6649 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=980, Invalid=13062, Unknown=0, NotChecked=0, Total=14042 [2023-04-03 01:07:32,736 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 397 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 2672 mSolverCounterSat, 393 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 3065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 393 IncrementalHoareTripleChecker+Valid, 2672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-04-03 01:07:32,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 835 Invalid, 3065 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [393 Valid, 2672 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-04-03 01:07:32,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-04-03 01:07:32,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-04-03 01:07:32,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-04-03 01:07:32,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-04-03 01:07:32,738 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 201 [2023-04-03 01:07:32,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:07:32,738 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-04-03 01:07:32,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 32 states have (on average 5.5) internal successors, (176), 33 states have internal predecessors, (176), 12 states have call successors, (68), 9 states have call predecessors, (68), 23 states have return successors, (72), 23 states have call predecessors, (72), 12 states have call successors, (72) [2023-04-03 01:07:32,738 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-04-03 01:07:32,738 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-04-03 01:07:32,741 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-03 01:07:32,749 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-04-03 01:07:32,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:07:32,949 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-04-03 01:07:35,522 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 11) no Hoare annotation was computed. [2023-04-03 01:07:35,522 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 11) no Hoare annotation was computed. [2023-04-03 01:07:35,522 INFO L899 garLoopResultBuilder]: For program point L127-2(lines 127 148) no Hoare annotation was computed. [2023-04-03 01:07:35,522 INFO L899 garLoopResultBuilder]: For program point L149(lines 126 150) no Hoare annotation was computed. [2023-04-03 01:07:35,522 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 102 157) no Hoare annotation was computed. [2023-04-03 01:07:35,522 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_freeEXIT(lines 102 157) no Hoare annotation was computed. [2023-04-03 01:07:35,523 INFO L899 garLoopResultBuilder]: For program point L133(lines 133 137) no Hoare annotation was computed. [2023-04-03 01:07:35,523 INFO L899 garLoopResultBuilder]: For program point L190(lines 190 194) no Hoare annotation was computed. [2023-04-03 01:07:35,523 INFO L899 garLoopResultBuilder]: For program point L184-2(lines 184 209) no Hoare annotation was computed. [2023-04-03 01:07:35,523 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_resetFINAL(lines 158 217) no Hoare annotation was computed. [2023-04-03 01:07:35,523 INFO L899 garLoopResultBuilder]: For program point L210(lines 183 211) no Hoare annotation was computed. [2023-04-03 01:07:35,523 INFO L899 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2023-04-03 01:07:35,523 INFO L899 garLoopResultBuilder]: For program point L203-1(line 203) no Hoare annotation was computed. [2023-04-03 01:07:35,523 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_resetEXIT(lines 158 217) no Hoare annotation was computed. [2023-04-03 01:07:35,523 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 158 217) no Hoare annotation was computed. [2023-04-03 01:07:35,523 INFO L899 garLoopResultBuilder]: For program point valid_productEXIT(lines 583 591) no Hoare annotation was computed. [2023-04-03 01:07:35,523 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 583 591) the Hoare annotation is: true [2023-04-03 01:07:35,523 INFO L899 garLoopResultBuilder]: For program point __utac_acc__Specification4_spec__1EXIT(lines 419 443) no Hoare annotation was computed. [2023-04-03 01:07:35,524 INFO L895 garLoopResultBuilder]: At program point L433(line 433) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (< 2 ~waterLevel~0) .cse0 (< ~waterLevel~0 2)) (or (not (= ~pumpRunning~0 0)) (< ~waterLevel~0 1) .cse0 (< 1 ~waterLevel~0)))) [2023-04-03 01:07:35,524 INFO L899 garLoopResultBuilder]: For program point L431(lines 431 437) no Hoare annotation was computed. [2023-04-03 01:07:35,524 INFO L895 garLoopResultBuilder]: At program point L429(line 429) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (< 2 ~waterLevel~0) .cse0 (< ~waterLevel~0 2)) (or (not (= ~pumpRunning~0 0)) (< ~waterLevel~0 1) .cse0 (< 1 ~waterLevel~0)))) [2023-04-03 01:07:35,524 INFO L899 garLoopResultBuilder]: For program point L429-1(line 429) no Hoare annotation was computed. [2023-04-03 01:07:35,524 INFO L899 garLoopResultBuilder]: For program point L427(lines 427 440) no Hoare annotation was computed. [2023-04-03 01:07:35,524 INFO L899 garLoopResultBuilder]: For program point L427-1(lines 419 443) no Hoare annotation was computed. [2023-04-03 01:07:35,524 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 419 443) the Hoare annotation is: true [2023-04-03 01:07:35,524 INFO L902 garLoopResultBuilder]: At program point L425(line 425) the Hoare annotation is: true [2023-04-03 01:07:35,524 INFO L899 garLoopResultBuilder]: For program point L425-1(line 425) no Hoare annotation was computed. [2023-04-03 01:07:35,524 INFO L895 garLoopResultBuilder]: At program point L537(line 537) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0) (= main_~tmp~4 1))) [2023-04-03 01:07:35,524 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 525 547) no Hoare annotation was computed. [2023-04-03 01:07:35,524 INFO L895 garLoopResultBuilder]: At program point L537-1(line 537) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0) (= main_~tmp~4 1))) [2023-04-03 01:07:35,525 INFO L899 garLoopResultBuilder]: For program point L535(lines 535 542) no Hoare annotation was computed. [2023-04-03 01:07:35,525 INFO L899 garLoopResultBuilder]: For program point L535-1(lines 535 542) no Hoare annotation was computed. [2023-04-03 01:07:35,525 INFO L899 garLoopResultBuilder]: For program point L533(line 533) no Hoare annotation was computed. [2023-04-03 01:07:35,525 INFO L895 garLoopResultBuilder]: At program point L532(line 532) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (not (= |old(~systemActive~0)| 1))) [2023-04-03 01:07:35,525 INFO L895 garLoopResultBuilder]: At program point L531(line 531) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (not (= |old(~systemActive~0)| 1))) [2023-04-03 01:07:35,525 INFO L895 garLoopResultBuilder]: At program point L531-1(line 531) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (not (= |old(~systemActive~0)| 1))) [2023-04-03 01:07:35,525 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 525 547) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (not (= |old(~systemActive~0)| 1))) [2023-04-03 01:07:35,525 INFO L899 garLoopResultBuilder]: For program point Specification2EXIT(lines 480 503) no Hoare annotation was computed. [2023-04-03 01:07:35,525 INFO L899 garLoopResultBuilder]: For program point Specification2FINAL(lines 480 503) no Hoare annotation was computed. [2023-04-03 01:07:35,525 INFO L899 garLoopResultBuilder]: For program point L498(line 498) no Hoare annotation was computed. [2023-04-03 01:07:35,525 INFO L899 garLoopResultBuilder]: For program point L497(line 497) no Hoare annotation was computed. [2023-04-03 01:07:35,525 INFO L899 garLoopResultBuilder]: For program point L496(line 496) no Hoare annotation was computed. [2023-04-03 01:07:35,526 INFO L899 garLoopResultBuilder]: For program point L495(line 495) no Hoare annotation was computed. [2023-04-03 01:07:35,526 INFO L899 garLoopResultBuilder]: For program point L494(line 494) no Hoare annotation was computed. [2023-04-03 01:07:35,526 INFO L899 garLoopResultBuilder]: For program point L493(line 493) no Hoare annotation was computed. [2023-04-03 01:07:35,526 INFO L899 garLoopResultBuilder]: For program point L492(line 492) no Hoare annotation was computed. [2023-04-03 01:07:35,526 INFO L899 garLoopResultBuilder]: For program point L491(line 491) no Hoare annotation was computed. [2023-04-03 01:07:35,526 INFO L899 garLoopResultBuilder]: For program point L490(line 490) no Hoare annotation was computed. [2023-04-03 01:07:35,526 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 480 503) no Hoare annotation was computed. [2023-04-03 01:07:35,526 INFO L899 garLoopResultBuilder]: For program point L489(line 489) no Hoare annotation was computed. [2023-04-03 01:07:35,526 INFO L899 garLoopResultBuilder]: For program point L488(line 488) no Hoare annotation was computed. [2023-04-03 01:07:35,526 INFO L899 garLoopResultBuilder]: For program point L487(line 487) no Hoare annotation was computed. [2023-04-03 01:07:35,526 INFO L899 garLoopResultBuilder]: For program point L486(line 486) no Hoare annotation was computed. [2023-04-03 01:07:35,526 INFO L899 garLoopResultBuilder]: For program point L485(line 485) no Hoare annotation was computed. [2023-04-03 01:07:35,526 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 881 899) the Hoare annotation is: true [2023-04-03 01:07:35,526 INFO L902 garLoopResultBuilder]: At program point L888(line 888) the Hoare annotation is: true [2023-04-03 01:07:35,526 INFO L899 garLoopResultBuilder]: For program point L888-1(line 888) no Hoare annotation was computed. [2023-04-03 01:07:35,527 INFO L899 garLoopResultBuilder]: For program point isLowWaterLevelEXIT(lines 881 899) no Hoare annotation was computed. [2023-04-03 01:07:35,527 INFO L899 garLoopResultBuilder]: For program point select_featuresEXIT(lines 569 575) no Hoare annotation was computed. [2023-04-03 01:07:35,527 INFO L902 garLoopResultBuilder]: At program point select_featuresFINAL(lines 569 575) the Hoare annotation is: true [2023-04-03 01:07:35,527 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 369 414) no Hoare annotation was computed. [2023-04-03 01:07:35,527 INFO L899 garLoopResultBuilder]: For program point __utac__get_this_argtypeEXIT(lines 369 414) no Hoare annotation was computed. [2023-04-03 01:07:35,527 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 677 690) the Hoare annotation is: true [2023-04-03 01:07:35,527 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDryEXIT(lines 677 690) no Hoare annotation was computed. [2023-04-03 01:07:35,527 INFO L899 garLoopResultBuilder]: For program point L769(lines 769 786) no Hoare annotation was computed. [2023-04-03 01:07:35,527 INFO L899 garLoopResultBuilder]: For program point processEnvironmentEXIT(lines 765 789) no Hoare annotation was computed. [2023-04-03 01:07:35,527 INFO L895 garLoopResultBuilder]: At program point L784(line 784) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (< 1 ~waterLevel~0)) (.cse4 (= |old(~pumpRunning~0)| 0))) (and (or .cse0 .cse1 .cse2 .cse3) (or (< 2 ~waterLevel~0) (not .cse4) .cse0 .cse2 (< ~waterLevel~0 2)) (or .cse1 .cse2 .cse3 .cse4))) [2023-04-03 01:07:35,527 INFO L899 garLoopResultBuilder]: For program point L784-1(lines 765 789) no Hoare annotation was computed. [2023-04-03 01:07:35,527 INFO L895 garLoopResultBuilder]: At program point L779(line 779) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) .cse0 (< ~waterLevel~0 2)) (or (< ~waterLevel~0 1) .cse0 (< 1 ~waterLevel~0)))) [2023-04-03 01:07:35,527 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 765 789) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (< ~waterLevel~0 1) .cse0 (< 1 ~waterLevel~0)) (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 (< ~waterLevel~0 2)))) [2023-04-03 01:07:35,528 INFO L895 garLoopResultBuilder]: At program point L775(line 775) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (< ~waterLevel~0 1)) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (< 1 ~waterLevel~0))) (and (or (< 2 ~waterLevel~0) .cse0 .cse1 (< ~waterLevel~0 2)) (or .cse2 .cse1 .cse3 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 processEnvironment_~tmp~6))) (or .cse0 .cse2 .cse1 .cse3))) [2023-04-03 01:07:35,528 INFO L899 garLoopResultBuilder]: For program point L773(lines 773 781) no Hoare annotation was computed. [2023-04-03 01:07:35,528 INFO L895 garLoopResultBuilder]: At program point L771(line 771) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (< ~waterLevel~0 1)) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (< 1 ~waterLevel~0))) (and (or (< 2 ~waterLevel~0) .cse0 .cse1 (< ~waterLevel~0 2)) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2 .cse1 .cse3) (or .cse0 .cse2 .cse1 .cse3))) [2023-04-03 01:07:35,528 INFO L899 garLoopResultBuilder]: For program point L771-1(line 771) no Hoare annotation was computed. [2023-04-03 01:07:35,528 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 731 737) no Hoare annotation was computed. [2023-04-03 01:07:35,528 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 731 737) the Hoare annotation is: true [2023-04-03 01:07:35,528 INFO L899 garLoopResultBuilder]: For program point L929(lines 929 935) no Hoare annotation was computed. [2023-04-03 01:07:35,528 INFO L899 garLoopResultBuilder]: For program point L929-1(lines 929 935) no Hoare annotation was computed. [2023-04-03 01:07:35,528 INFO L899 garLoopResultBuilder]: For program point testFINAL(lines 909 974) no Hoare annotation was computed. [2023-04-03 01:07:35,528 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 909 974) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (not (= |old(~systemActive~0)| 1))) [2023-04-03 01:07:35,528 INFO L895 garLoopResultBuilder]: At program point L967(lines 918 968) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (not (= |old(~systemActive~0)| 1))) [2023-04-03 01:07:35,528 INFO L895 garLoopResultBuilder]: At program point L957-2(lines 949 962) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0)) (.cse1 (= 1 ~systemActive~0))) (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (and .cse0 (<= 2 ~waterLevel~0) .cse1 (<= ~waterLevel~0 2)) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) .cse0 (<= ~waterLevel~0 1) .cse1 (<= 1 ~waterLevel~0)))) [2023-04-03 01:07:35,529 INFO L899 garLoopResultBuilder]: For program point L920(lines 919 966) no Hoare annotation was computed. [2023-04-03 01:07:35,529 INFO L895 garLoopResultBuilder]: At program point L951(line 951) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0)) (.cse1 (= 1 ~systemActive~0))) (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (and .cse0 (<= 2 ~waterLevel~0) .cse1 (<= ~waterLevel~0 2)) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) .cse0 (<= ~waterLevel~0 1) .cse1 (<= 1 ~waterLevel~0)))) [2023-04-03 01:07:35,529 INFO L899 garLoopResultBuilder]: For program point L949(lines 949 962) no Hoare annotation was computed. [2023-04-03 01:07:35,529 INFO L895 garLoopResultBuilder]: At program point L941(line 941) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0)) (.cse1 (= 1 ~systemActive~0))) (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (and .cse0 (<= 2 ~waterLevel~0) .cse1 (<= ~waterLevel~0 2)) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) .cse0 (<= ~waterLevel~0 1) .cse1 (<= 1 ~waterLevel~0)))) [2023-04-03 01:07:35,529 INFO L899 garLoopResultBuilder]: For program point L939(lines 939 945) no Hoare annotation was computed. [2023-04-03 01:07:35,529 INFO L899 garLoopResultBuilder]: For program point L939-1(lines 939 945) no Hoare annotation was computed. [2023-04-03 01:07:35,529 INFO L895 garLoopResultBuilder]: At program point L964(lines 919 966) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0)) (.cse1 (= 1 ~systemActive~0))) (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (and .cse0 (<= 2 ~waterLevel~0) .cse1 (<= ~waterLevel~0 2)) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) .cse0 (<= ~waterLevel~0 1) .cse1 (<= 1 ~waterLevel~0)))) [2023-04-03 01:07:35,529 INFO L895 garLoopResultBuilder]: At program point L931(line 931) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0)) (.cse1 (= 1 ~systemActive~0))) (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (and .cse0 (<= 2 ~waterLevel~0) .cse1 (<= ~waterLevel~0 2)) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) .cse0 .cse1 (= |old(~waterLevel~0)| ~waterLevel~0)))) [2023-04-03 01:07:35,529 INFO L899 garLoopResultBuilder]: For program point testEXIT(lines 909 974) no Hoare annotation was computed. [2023-04-03 01:07:35,529 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 691 699) the Hoare annotation is: true [2023-04-03 01:07:35,529 INFO L899 garLoopResultBuilder]: For program point isLowWaterSensorDryEXIT(lines 691 699) no Hoare annotation was computed. [2023-04-03 01:07:35,530 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 645 667) no Hoare annotation was computed. [2023-04-03 01:07:35,530 INFO L899 garLoopResultBuilder]: For program point printEnvironmentEXIT(lines 645 667) no Hoare annotation was computed. [2023-04-03 01:07:35,530 INFO L899 garLoopResultBuilder]: For program point activatePumpEXIT(lines 790 797) no Hoare annotation was computed. [2023-04-03 01:07:35,530 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 790 797) the Hoare annotation is: (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0)) (< ~waterLevel~0 2)) [2023-04-03 01:07:35,530 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 668 676) the Hoare annotation is: true [2023-04-03 01:07:35,530 INFO L899 garLoopResultBuilder]: For program point getWaterLevelEXIT(lines 668 676) no Hoare annotation was computed. [2023-04-03 01:07:35,530 INFO L899 garLoopResultBuilder]: For program point isHighWaterLevelEXIT(lines 862 880) no Hoare annotation was computed. [2023-04-03 01:07:35,530 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 862 880) the Hoare annotation is: true [2023-04-03 01:07:35,530 INFO L902 garLoopResultBuilder]: At program point L869(line 869) the Hoare annotation is: true [2023-04-03 01:07:35,530 INFO L899 garLoopResultBuilder]: For program point L869-1(line 869) no Hoare annotation was computed. [2023-04-03 01:07:35,530 INFO L895 garLoopResultBuilder]: At program point L720(line 720) the Hoare annotation is: (let ((.cse2 (= |old(~pumpRunning~0)| 0))) (let ((.cse4 (not .cse2)) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (< |old(~waterLevel~0)| 2) (and .cse1 .cse2 .cse3) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse4 (<= ~waterLevel~0 1) (<= 1 ~waterLevel~0)) (< 2 |old(~waterLevel~0)|)) (or (< 1 |old(~waterLevel~0)|) .cse4 (< |old(~waterLevel~0)| 1) (and .cse1 .cse3) .cse0)))) [2023-04-03 01:07:35,530 INFO L895 garLoopResultBuilder]: At program point L718(lines 718 724) the Hoare annotation is: (let ((.cse3 (not (= 1 ~systemActive~0))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (< 1 |old(~waterLevel~0)|) .cse0 (< |old(~waterLevel~0)| 1) (and .cse1 .cse2) .cse3) (or .cse3 (and .cse0 .cse1 (<= ~waterLevel~0 1) (<= 1 ~waterLevel~0)) (< |old(~waterLevel~0)| 2) .cse2 (< 2 |old(~waterLevel~0)|)))) [2023-04-03 01:07:35,530 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 707 730) no Hoare annotation was computed. [2023-04-03 01:07:35,531 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 707 730) the Hoare annotation is: (let ((.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (< |old(~waterLevel~0)| 2) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1) (< 2 |old(~waterLevel~0)|)) (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (and (= ~pumpRunning~0 0) .cse1) .cse0))) [2023-04-03 01:07:35,531 INFO L895 garLoopResultBuilder]: At program point L713(line 713) the Hoare annotation is: (let ((.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (< |old(~waterLevel~0)| 2)) (.cse2 (< 2 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse2) (or (< 1 |old(~waterLevel~0)|) .cse3 (< |old(~waterLevel~0)| 1) .cse0) (or .cse3 .cse0 .cse1 .cse2))) [2023-04-03 01:07:35,531 INFO L899 garLoopResultBuilder]: For program point L711(lines 710 729) no Hoare annotation was computed. [2023-04-03 01:07:35,531 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 707 730) no Hoare annotation was computed. [2023-04-03 01:07:35,531 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 447 476) no Hoare annotation was computed. [2023-04-03 01:07:35,531 INFO L902 garLoopResultBuilder]: At program point L472(lines 447 476) the Hoare annotation is: true [2023-04-03 01:07:35,531 INFO L899 garLoopResultBuilder]: For program point L468(line 468) no Hoare annotation was computed. [2023-04-03 01:07:35,531 INFO L899 garLoopResultBuilder]: For program point L461(lines 461 465) no Hoare annotation was computed. [2023-04-03 01:07:35,531 INFO L902 garLoopResultBuilder]: At program point L461-1(lines 461 465) the Hoare annotation is: true [2023-04-03 01:07:35,531 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 447 476) the Hoare annotation is: true [2023-04-03 01:07:35,531 INFO L902 garLoopResultBuilder]: At program point L457-2(lines 457 471) the Hoare annotation is: true [2023-04-03 01:07:35,531 INFO L902 garLoopResultBuilder]: At program point L453(line 453) the Hoare annotation is: true [2023-04-03 01:07:35,532 INFO L899 garLoopResultBuilder]: For program point L453-1(line 453) no Hoare annotation was computed. [2023-04-03 01:07:35,532 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 636 644) no Hoare annotation was computed. [2023-04-03 01:07:35,532 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 636 644) no Hoare annotation was computed. [2023-04-03 01:07:35,532 INFO L899 garLoopResultBuilder]: For program point lowerWaterLevelEXIT(lines 600 611) no Hoare annotation was computed. [2023-04-03 01:07:35,532 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 600 611) the Hoare annotation is: (or (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0)) (< |old(~waterLevel~0)| 2) (= |old(~waterLevel~0)| ~waterLevel~0) (< 2 |old(~waterLevel~0)|)) [2023-04-03 01:07:35,532 INFO L899 garLoopResultBuilder]: For program point startSystemEXIT(lines 900 907) no Hoare annotation was computed. [2023-04-03 01:07:35,532 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 900 907) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (not (= |old(~systemActive~0)| 1)))) (and (or (< 2 ~waterLevel~0) .cse0 .cse1 (< ~waterLevel~0 2)) (or (not (= ~pumpRunning~0 0)) (< ~waterLevel~0 1) (< 1 ~waterLevel~0) .cse0 .cse1))) [2023-04-03 01:07:35,532 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 739 763) no Hoare annotation was computed. [2023-04-03 01:07:35,532 INFO L895 garLoopResultBuilder]: At program point L758(line 758) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or (< 2 ~waterLevel~0) .cse0 .cse1 (< ~waterLevel~0 2)) (or .cse0 (< ~waterLevel~0 1) .cse1 (< 1 ~waterLevel~0)))) [2023-04-03 01:07:35,532 INFO L899 garLoopResultBuilder]: For program point L758-1(lines 739 763) no Hoare annotation was computed. [2023-04-03 01:07:35,532 INFO L895 garLoopResultBuilder]: At program point L753(line 753) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or (< 2 ~waterLevel~0) .cse0 .cse1 (< ~waterLevel~0 2)) (or .cse0 (< ~waterLevel~0 1) .cse1 (< 1 ~waterLevel~0) (and (= ~pumpRunning~0 0) (= processEnvironment__wrappee__highWaterSensor_~tmp~5 0))))) [2023-04-03 01:07:35,532 INFO L895 garLoopResultBuilder]: At program point L749(line 749) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or (< 2 ~waterLevel~0) (and (= ~pumpRunning~0 0) (= processEnvironment__wrappee__highWaterSensor_~tmp~5 1)) .cse0 .cse1 (< ~waterLevel~0 2)) (or .cse0 (< ~waterLevel~0 1) .cse1 (< 1 ~waterLevel~0)))) [2023-04-03 01:07:35,533 INFO L899 garLoopResultBuilder]: For program point L747(lines 747 755) no Hoare annotation was computed. [2023-04-03 01:07:35,533 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 739 763) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or (< 2 ~waterLevel~0) .cse0 .cse1 .cse2 (< ~waterLevel~0 2)) (or .cse0 .cse1 (< ~waterLevel~0 1) .cse2 (< 1 ~waterLevel~0)))) [2023-04-03 01:07:35,533 INFO L895 garLoopResultBuilder]: At program point L745(line 745) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or (< 2 ~waterLevel~0) .cse0 .cse1 .cse2 (< ~waterLevel~0 2)) (or .cse0 .cse1 (< ~waterLevel~0 1) .cse2 (< 1 ~waterLevel~0)))) [2023-04-03 01:07:35,533 INFO L899 garLoopResultBuilder]: For program point L745-1(line 745) no Hoare annotation was computed. [2023-04-03 01:07:35,533 INFO L899 garLoopResultBuilder]: For program point L743(lines 743 760) no Hoare annotation was computed. [2023-04-03 01:07:35,533 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 612 623) no Hoare annotation was computed. [2023-04-03 01:07:35,533 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 612 623) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (< 1 |old(~waterLevel~0)|) (< |old(~waterLevel~0)| 1) (not (= ~pumpRunning~0 0)) .cse0 .cse1) (or .cse0 (< |old(~waterLevel~0)| 2) .cse1 (< 2 |old(~waterLevel~0)|)))) [2023-04-03 01:07:35,533 INFO L902 garLoopResultBuilder]: At program point ERROR(lines 549 556) the Hoare annotation is: true [2023-04-03 01:07:35,533 INFO L899 garLoopResultBuilder]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 553) no Hoare annotation was computed. [2023-04-03 01:07:35,533 INFO L899 garLoopResultBuilder]: For program point __automaton_failEXIT(lines 549 556) no Hoare annotation was computed. [2023-04-03 01:07:35,533 INFO L902 garLoopResultBuilder]: At program point select_helpersFINAL(lines 576 582) the Hoare annotation is: true [2023-04-03 01:07:35,533 INFO L899 garLoopResultBuilder]: For program point select_helpersEXIT(lines 576 582) no Hoare annotation was computed. [2023-04-03 01:07:35,534 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 817 825) no Hoare annotation was computed. [2023-04-03 01:07:35,534 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 817 825) the Hoare annotation is: true [2023-04-03 01:07:35,534 INFO L899 garLoopResultBuilder]: For program point L856(line 856) no Hoare annotation was computed. [2023-04-03 01:07:35,534 INFO L899 garLoopResultBuilder]: For program point L856-1(line 856) no Hoare annotation was computed. [2023-04-03 01:07:35,534 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 826 861) no Hoare annotation was computed. [2023-04-03 01:07:35,534 INFO L899 garLoopResultBuilder]: For program point printPumpEXIT(lines 826 861) no Hoare annotation was computed. [2023-04-03 01:07:35,534 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_setEXIT(lines 56 101) no Hoare annotation was computed. [2023-04-03 01:07:35,534 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 56 101) no Hoare annotation was computed. [2023-04-03 01:07:35,534 INFO L899 garLoopResultBuilder]: For program point runTestEXIT(lines 512 521) no Hoare annotation was computed. [2023-04-03 01:07:35,534 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 512 521) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (not (= |old(~systemActive~0)| 1))) [2023-04-03 01:07:35,534 INFO L899 garLoopResultBuilder]: For program point runTestFINAL(lines 512 521) no Hoare annotation was computed. [2023-04-03 01:07:35,534 INFO L899 garLoopResultBuilder]: For program point L811(line 811) no Hoare annotation was computed. [2023-04-03 01:07:35,534 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 806 816) no Hoare annotation was computed. [2023-04-03 01:07:35,534 INFO L899 garLoopResultBuilder]: For program point L811-1(line 811) no Hoare annotation was computed. [2023-04-03 01:07:35,534 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 806 816) no Hoare annotation was computed. [2023-04-03 01:07:35,534 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 798 805) no Hoare annotation was computed. [2023-04-03 01:07:35,535 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 798 805) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (< ~waterLevel~0 1) (not (= 1 ~systemActive~0)) (< 1 ~waterLevel~0) (= |old(~pumpRunning~0)| 0)) [2023-04-03 01:07:35,535 INFO L899 garLoopResultBuilder]: For program point __utac__get_this_argEXIT(lines 323 368) no Hoare annotation was computed. [2023-04-03 01:07:35,535 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 323 368) no Hoare annotation was computed. [2023-04-03 01:07:35,535 INFO L899 garLoopResultBuilder]: For program point L285(line 285) no Hoare annotation was computed. [2023-04-03 01:07:35,535 INFO L899 garLoopResultBuilder]: For program point L285-1(line 285) no Hoare annotation was computed. [2023-04-03 01:07:35,535 INFO L899 garLoopResultBuilder]: For program point L244(lines 244 248) no Hoare annotation was computed. [2023-04-03 01:07:35,535 INFO L899 garLoopResultBuilder]: For program point L269-2(lines 269 289) no Hoare annotation was computed. [2023-04-03 01:07:35,535 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 220 322) no Hoare annotation was computed. [2023-04-03 01:07:35,535 INFO L899 garLoopResultBuilder]: For program point __utac__error_stack_mgtFINAL(lines 220 322) no Hoare annotation was computed. [2023-04-03 01:07:35,535 INFO L899 garLoopResultBuilder]: For program point L290(lines 268 291) no Hoare annotation was computed. [2023-04-03 01:07:35,535 INFO L899 garLoopResultBuilder]: For program point L249(lines 249 265) no Hoare annotation was computed. [2023-04-03 01:07:35,535 INFO L899 garLoopResultBuilder]: For program point __utac__error_stack_mgtEXIT(lines 220 322) no Hoare annotation was computed. [2023-04-03 01:07:35,535 INFO L899 garLoopResultBuilder]: For program point L270(lines 269 289) no Hoare annotation was computed. [2023-04-03 01:07:35,535 INFO L899 garLoopResultBuilder]: For program point L301(line 301) no Hoare annotation was computed. [2023-04-03 01:07:35,535 INFO L899 garLoopResultBuilder]: For program point L301-1(line 301) no Hoare annotation was computed. [2023-04-03 01:07:35,535 INFO L899 garLoopResultBuilder]: For program point L266(lines 266 307) no Hoare annotation was computed. [2023-04-03 01:07:35,535 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 559 568) no Hoare annotation was computed. [2023-04-03 01:07:35,536 INFO L899 garLoopResultBuilder]: For program point select_oneEXIT(lines 559 568) no Hoare annotation was computed. [2023-04-03 01:07:35,536 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~waterLevel~0)| ~waterLevel~0)) [2023-04-03 01:07:35,536 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-04-03 01:07:35,536 INFO L899 garLoopResultBuilder]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2023-04-03 01:07:35,536 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-04-03 01:07:35,536 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 624 635) the Hoare annotation is: true [2023-04-03 01:07:35,536 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 624 635) no Hoare annotation was computed. [2023-04-03 01:07:35,536 INFO L899 garLoopResultBuilder]: For program point setupEXIT(lines 504 510) no Hoare annotation was computed. [2023-04-03 01:07:35,536 INFO L902 garLoopResultBuilder]: At program point setupFINAL(lines 504 510) the Hoare annotation is: true [2023-04-03 01:07:35,536 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-04-03 01:07:35,536 INFO L895 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: (and (= ~pumpRunning~0 0) (<= ~waterLevel~0 1) (= 1 ~systemActive~0) (<= 1 ~waterLevel~0)) [2023-04-03 01:07:35,536 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-04-03 01:07:35,536 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-04-03 01:07:35,539 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:07:35,541 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-03 01:07:35,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.04 01:07:35 BoogieIcfgContainer [2023-04-03 01:07:35,558 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-03 01:07:35,559 INFO L158 Benchmark]: Toolchain (without parser) took 36361.16ms. Allocated memory was 318.8MB in the beginning and 969.9MB in the end (delta: 651.2MB). Free memory was 267.7MB in the beginning and 543.9MB in the end (delta: -276.2MB). Peak memory consumption was 571.4MB. Max. memory is 8.0GB. [2023-04-03 01:07:35,559 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 196.1MB. Free memory is still 143.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-03 01:07:35,559 INFO L158 Benchmark]: CACSL2BoogieTranslator took 478.32ms. Allocated memory is still 318.8MB. Free memory was 267.7MB in the beginning and 249.1MB in the end (delta: 18.6MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-04-03 01:07:35,560 INFO L158 Benchmark]: Boogie Preprocessor took 105.35ms. Allocated memory is still 318.8MB. Free memory was 249.1MB in the beginning and 245.6MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-04-03 01:07:35,560 INFO L158 Benchmark]: RCFGBuilder took 840.31ms. Allocated memory is still 318.8MB. Free memory was 245.3MB in the beginning and 243.1MB in the end (delta: 2.2MB). Peak memory consumption was 27.5MB. Max. memory is 8.0GB. [2023-04-03 01:07:35,560 INFO L158 Benchmark]: TraceAbstraction took 34932.19ms. Allocated memory was 318.8MB in the beginning and 969.9MB in the end (delta: 651.2MB). Free memory was 242.6MB in the beginning and 543.9MB in the end (delta: -301.3MB). Peak memory consumption was 546.0MB. Max. memory is 8.0GB. [2023-04-03 01:07:35,561 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 196.1MB. Free memory is still 143.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 478.32ms. Allocated memory is still 318.8MB. Free memory was 267.7MB in the beginning and 249.1MB in the end (delta: 18.6MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 105.35ms. Allocated memory is still 318.8MB. Free memory was 249.1MB in the beginning and 245.6MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 840.31ms. Allocated memory is still 318.8MB. Free memory was 245.3MB in the beginning and 243.1MB in the end (delta: 2.2MB). Peak memory consumption was 27.5MB. Max. memory is 8.0GB. * TraceAbstraction took 34932.19ms. Allocated memory was 318.8MB in the beginning and 969.9MB in the end (delta: 651.2MB). Free memory was 242.6MB in the beginning and 543.9MB in the end (delta: -301.3MB). Peak memory consumption was 546.0MB. 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: 553]: 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 42 procedures, 188 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 34.9s, OverallIterations: 11, TraceHistogramMax: 4, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 8.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2445 SdHoareTripleChecker+Valid, 5.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2353 mSDsluCounter, 5444 SdHoareTripleChecker+Invalid, 4.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4478 mSDsCounter, 1768 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9215 IncrementalHoareTripleChecker+Invalid, 10983 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1768 mSolverCounterUnsat, 966 mSDtfsCounter, 9215 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1508 GetRequests, 1116 SyntacticMatches, 34 SemanticMatches, 358 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13671 ImplicationChecksByTransitivity, 11.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1047occurred in iteration=9, InterpolantAutomatonStates: 169, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 375 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 60 LocationsWithAnnotation, 1765 PreInvPairs, 1812 NumberOfFragments, 1234 HoareAnnotationTreeSize, 1765 FomulaSimplifications, 12984 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 60 FomulaSimplificationsInter, 5352 FormulaSimplificationTreeSizeReductionInter, 1.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 7.3s InterpolantComputationTime, 1596 NumberOfCodeBlocks, 1596 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 1897 ConstructedInterpolants, 0 QuantifiedInterpolants, 5059 SizeOfPredicates, 36 NumberOfNonLiveVariables, 2127 ConjunctsInSsa, 171 ConjunctsInUnsatCore, 17 InterpolantComputations, 9 PerfectInterpolantSequences, 766/869 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: 457]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 918]: Loop Invariant Derived loop invariant: ((1 < \old(waterLevel) || !(\old(pumpRunning) == 0)) || \old(waterLevel) < 1) || !(\old(systemActive) == 1) - InvariantResult [Line: 919]: Loop Invariant Derived loop invariant: ((((1 < \old(waterLevel) || !(\old(pumpRunning) == 0)) || \old(waterLevel) < 1) || (((splverifierCounter == 0 && 2 <= waterLevel) && 1 == systemActive) && waterLevel <= 2)) || !(\old(systemActive) == 1)) || ((((pumpRunning == 0 && splverifierCounter == 0) && waterLevel <= 1) && 1 == systemActive) && 1 <= waterLevel) - InvariantResult [Line: 447]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-04-03 01:07:35,589 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...