/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain IntervalDomain -i ../sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 23:54:12,947 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 23:54:12,949 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 23:54:12,972 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 23:54:12,972 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 23:54:12,973 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 23:54:12,976 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 23:54:12,980 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 23:54:12,981 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 23:54:12,986 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 23:54:12,988 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 23:54:12,989 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 23:54:12,989 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 23:54:12,993 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 23:54:12,994 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 23:54:12,996 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 23:54:12,997 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 23:54:12,998 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 23:54:13,000 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 23:54:13,004 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 23:54:13,005 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 23:54:13,006 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 23:54:13,007 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 23:54:13,009 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 23:54:13,016 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 23:54:13,016 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 23:54:13,017 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 23:54:13,017 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 23:54:13,018 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 23:54:13,018 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 23:54:13,018 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 23:54:13,019 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 23:54:13,019 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 23:54:13,020 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 23:54:13,020 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 23:54:13,021 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 23:54:13,021 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 23:54:13,021 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 23:54:13,022 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 23:54:13,022 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 23:54:13,023 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 23:54:13,025 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-03-31 23:54:13,059 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 23:54:13,059 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 23:54:13,060 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 23:54:13,060 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 23:54:13,061 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 23:54:13,061 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 23:54:13,061 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 23:54:13,061 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 23:54:13,061 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 23:54:13,061 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 23:54:13,062 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 23:54:13,062 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 23:54:13,062 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 23:54:13,062 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 23:54:13,062 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 23:54:13,062 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 23:54:13,063 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 23:54:13,063 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 23:54:13,063 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 23:54:13,063 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 23:54:13,063 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 23:54:13,064 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 23:54:13,064 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 23:54:13,064 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 23:54:13,064 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 23:54:13,064 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 23:54:13,064 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 23:54:13,064 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 23:54:13,064 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 23:54:13,065 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 23:54:13,065 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 23:54:13,065 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 23:54:13,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 23:54:13,065 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 23:54:13,065 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 23:54:13,066 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 23:54:13,066 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 23:54:13,066 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 23:54:13,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 23:54:13,066 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 23:54:13,066 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 23:54:13,066 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-03-31 23:54:13,299 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 23:54:13,325 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 23:54:13,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 23:54:13,328 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 23:54:13,329 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 23:54:13,330 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c [2023-03-31 23:54:14,493 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 23:54:14,772 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 23:54:14,773 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c [2023-03-31 23:54:14,783 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b18a24cde/97de9b3fdd2141ed862a41939e2217ea/FLAG7e52c4472 [2023-03-31 23:54:14,795 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b18a24cde/97de9b3fdd2141ed862a41939e2217ea [2023-03-31 23:54:14,797 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 23:54:14,798 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 23:54:14,800 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 23:54:14,800 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 23:54:14,807 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 23:54:14,808 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 11:54:14" (1/1) ... [2023-03-31 23:54:14,808 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cde146e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:54:14, skipping insertion in model container [2023-03-31 23:54:14,809 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 11:54:14" (1/1) ... [2023-03-31 23:54:14,816 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 23:54:14,849 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 23:54:15,039 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c[6823,6836] [2023-03-31 23:54:15,120 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 23:54:15,130 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 23:54:15,160 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c[6823,6836] [2023-03-31 23:54:15,223 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 23:54:15,248 INFO L208 MainTranslator]: Completed translation [2023-03-31 23:54:15,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:54:15 WrapperNode [2023-03-31 23:54:15,249 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 23:54:15,250 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 23:54:15,250 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 23:54:15,250 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 23:54:15,261 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:54:15" (1/1) ... [2023-03-31 23:54:15,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:54:15" (1/1) ... [2023-03-31 23:54:15,273 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:54:15" (1/1) ... [2023-03-31 23:54:15,274 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:54:15" (1/1) ... [2023-03-31 23:54:15,293 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:54:15" (1/1) ... [2023-03-31 23:54:15,300 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:54:15" (1/1) ... [2023-03-31 23:54:15,303 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:54:15" (1/1) ... [2023-03-31 23:54:15,306 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:54:15" (1/1) ... [2023-03-31 23:54:15,315 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 23:54:15,316 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 23:54:15,316 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 23:54:15,317 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 23:54:15,317 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:54:15" (1/1) ... [2023-03-31 23:54:15,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 23:54:15,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:54:15,362 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-03-31 23:54:15,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-03-31 23:54:15,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 23:54:15,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 23:54:15,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-03-31 23:54:15,403 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 23:54:15,404 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-03-31 23:54:15,404 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-03-31 23:54:15,404 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-03-31 23:54:15,405 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-03-31 23:54:15,405 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-03-31 23:54:15,405 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-03-31 23:54:15,405 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-03-31 23:54:15,405 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2023-03-31 23:54:15,405 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-03-31 23:54:15,405 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2023-03-31 23:54:15,406 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-03-31 23:54:15,406 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-03-31 23:54:15,406 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-03-31 23:54:15,406 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-03-31 23:54:15,406 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-03-31 23:54:15,406 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2023-03-31 23:54:15,406 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2023-03-31 23:54:15,406 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2023-03-31 23:54:15,406 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2023-03-31 23:54:15,406 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-03-31 23:54:15,406 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-03-31 23:54:15,406 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2023-03-31 23:54:15,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2023-03-31 23:54:15,407 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-03-31 23:54:15,407 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-03-31 23:54:15,407 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-03-31 23:54:15,407 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-03-31 23:54:15,407 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-03-31 23:54:15,407 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-03-31 23:54:15,407 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2023-03-31 23:54:15,407 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2023-03-31 23:54:15,408 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-03-31 23:54:15,408 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-03-31 23:54:15,408 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-03-31 23:54:15,408 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-03-31 23:54:15,408 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 23:54:15,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-03-31 23:54:15,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-03-31 23:54:15,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-03-31 23:54:15,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-03-31 23:54:15,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-03-31 23:54:15,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-03-31 23:54:15,410 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 23:54:15,410 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 23:54:15,410 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 23:54:15,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 23:54:15,410 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 23:54:15,411 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-03-31 23:54:15,411 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-03-31 23:54:15,411 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-03-31 23:54:15,411 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-03-31 23:54:15,411 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-03-31 23:54:15,412 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-03-31 23:54:15,412 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-03-31 23:54:15,412 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-03-31 23:54:15,412 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2023-03-31 23:54:15,413 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2023-03-31 23:54:15,413 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-03-31 23:54:15,413 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-03-31 23:54:15,413 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-03-31 23:54:15,413 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-03-31 23:54:15,413 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-03-31 23:54:15,413 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2023-03-31 23:54:15,413 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2023-03-31 23:54:15,413 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2023-03-31 23:54:15,414 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-03-31 23:54:15,414 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-03-31 23:54:15,414 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2023-03-31 23:54:15,414 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-03-31 23:54:15,414 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2023-03-31 23:54:15,414 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2023-03-31 23:54:15,414 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-03-31 23:54:15,414 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2023-03-31 23:54:15,414 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-03-31 23:54:15,414 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-03-31 23:54:15,415 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-03-31 23:54:15,415 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-03-31 23:54:15,415 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-03-31 23:54:15,415 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2023-03-31 23:54:15,416 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-03-31 23:54:15,416 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-03-31 23:54:15,416 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-03-31 23:54:15,416 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-03-31 23:54:15,417 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 23:54:15,417 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-03-31 23:54:15,417 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-03-31 23:54:15,417 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-03-31 23:54:15,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-03-31 23:54:15,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-03-31 23:54:15,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 23:54:15,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-03-31 23:54:15,417 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-03-31 23:54:15,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 23:54:15,417 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-03-31 23:54:15,417 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-03-31 23:54:15,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 23:54:15,418 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-03-31 23:54:15,418 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-03-31 23:54:15,418 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-03-31 23:54:15,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 23:54:15,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 23:54:15,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 23:54:15,569 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 23:54:15,571 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 23:54:16,204 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 23:54:16,336 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 23:54:16,336 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-03-31 23:54:16,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 11:54:16 BoogieIcfgContainer [2023-03-31 23:54:16,340 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 23:54:16,343 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 23:54:16,344 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 23:54:16,347 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 23:54:16,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 11:54:14" (1/3) ... [2023-03-31 23:54:16,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2740be1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 11:54:16, skipping insertion in model container [2023-03-31 23:54:16,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:54:15" (2/3) ... [2023-03-31 23:54:16,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2740be1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 11:54:16, skipping insertion in model container [2023-03-31 23:54:16,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 11:54:16" (3/3) ... [2023-03-31 23:54:16,354 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product64.cil.c [2023-03-31 23:54:16,370 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 23:54:16,370 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 23:54:16,431 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 23:54:16,437 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;@4e5d11f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-03-31 23:54:16,437 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 23:54:16,445 INFO L276 IsEmpty]: Start isEmpty. Operand has 174 states, 81 states have (on average 1.2839506172839505) internal successors, (104), 99 states have internal predecessors, (104), 56 states have call successors, (56), 34 states have call predecessors, (56), 34 states have return successors, (56), 49 states have call predecessors, (56), 56 states have call successors, (56) [2023-03-31 23:54:16,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-03-31 23:54:16,454 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:54:16,455 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:54:16,457 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:54:16,464 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:54:16,464 INFO L85 PathProgramCache]: Analyzing trace with hash 2028578082, now seen corresponding path program 1 times [2023-03-31 23:54:16,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:54:16,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610418358] [2023-03-31 23:54:16,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:54:16,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:54:16,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:54:16,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:54:16,733 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:54:16,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610418358] [2023-03-31 23:54:16,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610418358] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:54:16,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:54:16,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-03-31 23:54:16,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323600505] [2023-03-31 23:54:16,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:54:16,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-03-31 23:54:16,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:54:16,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-03-31 23:54:16,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-03-31 23:54:16,781 INFO L87 Difference]: Start difference. First operand has 174 states, 81 states have (on average 1.2839506172839505) internal successors, (104), 99 states have internal predecessors, (104), 56 states have call successors, (56), 34 states have call predecessors, (56), 34 states have return successors, (56), 49 states have call predecessors, (56), 56 states have call successors, (56) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-03-31 23:54:16,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:54:16,897 INFO L93 Difference]: Finished difference Result 278 states and 343 transitions. [2023-03-31 23:54:16,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-31 23:54:16,900 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 46 [2023-03-31 23:54:16,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:54:16,912 INFO L225 Difference]: With dead ends: 278 [2023-03-31 23:54:16,913 INFO L226 Difference]: Without dead ends: 141 [2023-03-31 23:54:16,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-03-31 23:54:16,926 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-31 23:54:16,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 158 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-31 23:54:16,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2023-03-31 23:54:16,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2023-03-31 23:54:16,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 72 states have (on average 1.25) internal successors, (90), 87 states have internal predecessors, (90), 41 states have call successors, (41), 32 states have call predecessors, (41), 27 states have return successors, (36), 29 states have call predecessors, (36), 36 states have call successors, (36) [2023-03-31 23:54:16,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 167 transitions. [2023-03-31 23:54:16,974 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 167 transitions. Word has length 46 [2023-03-31 23:54:16,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:54:16,974 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 167 transitions. [2023-03-31 23:54:16,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-03-31 23:54:16,975 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 167 transitions. [2023-03-31 23:54:16,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-03-31 23:54:16,977 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:54:16,978 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:54:16,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 23:54:16,978 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:54:16,979 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:54:16,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1363425590, now seen corresponding path program 1 times [2023-03-31 23:54:16,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:54:16,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439821305] [2023-03-31 23:54:16,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:54:16,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:54:17,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:54:17,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:54:17,128 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:54:17,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439821305] [2023-03-31 23:54:17,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439821305] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:54:17,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:54:17,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-03-31 23:54:17,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220950985] [2023-03-31 23:54:17,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:54:17,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-03-31 23:54:17,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:54:17,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-03-31 23:54:17,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-03-31 23:54:17,134 INFO L87 Difference]: Start difference. First operand 141 states and 167 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-03-31 23:54:17,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:54:17,218 INFO L93 Difference]: Finished difference Result 226 states and 268 transitions. [2023-03-31 23:54:17,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-03-31 23:54:17,219 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 47 [2023-03-31 23:54:17,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:54:17,222 INFO L225 Difference]: With dead ends: 226 [2023-03-31 23:54:17,222 INFO L226 Difference]: Without dead ends: 133 [2023-03-31 23:54:17,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-03-31 23:54:17,224 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 11 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-31 23:54:17,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 259 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-31 23:54:17,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2023-03-31 23:54:17,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2023-03-31 23:54:17,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 67 states have (on average 1.2537313432835822) internal successors, (84), 82 states have internal predecessors, (84), 38 states have call successors, (38), 31 states have call predecessors, (38), 27 states have return successors, (34), 27 states have call predecessors, (34), 34 states have call successors, (34) [2023-03-31 23:54:17,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 156 transitions. [2023-03-31 23:54:17,244 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 156 transitions. Word has length 47 [2023-03-31 23:54:17,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:54:17,244 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 156 transitions. [2023-03-31 23:54:17,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-03-31 23:54:17,245 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 156 transitions. [2023-03-31 23:54:17,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-03-31 23:54:17,246 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:54:17,246 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:54:17,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 23:54:17,247 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:54:17,247 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:54:17,247 INFO L85 PathProgramCache]: Analyzing trace with hash 46972915, now seen corresponding path program 1 times [2023-03-31 23:54:17,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:54:17,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025700963] [2023-03-31 23:54:17,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:54:17,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:54:17,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:54:17,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:54:17,502 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:54:17,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025700963] [2023-03-31 23:54:17,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025700963] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:54:17,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:54:17,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-03-31 23:54:17,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186507595] [2023-03-31 23:54:17,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:54:17,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-03-31 23:54:17,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:54:17,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-03-31 23:54:17,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-03-31 23:54:17,506 INFO L87 Difference]: Start difference. First operand 133 states and 156 transitions. Second operand has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 4 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-03-31 23:54:17,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:54:17,860 INFO L93 Difference]: Finished difference Result 395 states and 480 transitions. [2023-03-31 23:54:17,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-31 23:54:17,861 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 4 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 51 [2023-03-31 23:54:17,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:54:17,868 INFO L225 Difference]: With dead ends: 395 [2023-03-31 23:54:17,868 INFO L226 Difference]: Without dead ends: 287 [2023-03-31 23:54:17,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-03-31 23:54:17,878 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 259 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-03-31 23:54:17,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 629 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-03-31 23:54:17,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2023-03-31 23:54:17,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 275. [2023-03-31 23:54:17,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 146 states have (on average 1.2876712328767124) internal successors, (188), 175 states have internal predecessors, (188), 74 states have call successors, (74), 60 states have call predecessors, (74), 54 states have return successors, (71), 54 states have call predecessors, (71), 70 states have call successors, (71) [2023-03-31 23:54:17,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 333 transitions. [2023-03-31 23:54:17,943 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 333 transitions. Word has length 51 [2023-03-31 23:54:17,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:54:17,944 INFO L495 AbstractCegarLoop]: Abstraction has 275 states and 333 transitions. [2023-03-31 23:54:17,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 4 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-03-31 23:54:17,944 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 333 transitions. [2023-03-31 23:54:17,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-03-31 23:54:17,951 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:54:17,951 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:54:17,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-31 23:54:17,952 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:54:17,952 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:54:17,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1381036171, now seen corresponding path program 1 times [2023-03-31 23:54:17,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:54:17,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565711362] [2023-03-31 23:54:17,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:54:17,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:54:18,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:54:18,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:54:18,098 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:54:18,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565711362] [2023-03-31 23:54:18,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565711362] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:54:18,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:54:18,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-03-31 23:54:18,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257766606] [2023-03-31 23:54:18,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:54:18,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-03-31 23:54:18,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:54:18,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-03-31 23:54:18,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-03-31 23:54:18,100 INFO L87 Difference]: Start difference. First operand 275 states and 333 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-03-31 23:54:18,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:54:18,294 INFO L93 Difference]: Finished difference Result 757 states and 936 transitions. [2023-03-31 23:54:18,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-03-31 23:54:18,295 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 55 [2023-03-31 23:54:18,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:54:18,301 INFO L225 Difference]: With dead ends: 757 [2023-03-31 23:54:18,301 INFO L226 Difference]: Without dead ends: 507 [2023-03-31 23:54:18,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-03-31 23:54:18,312 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 114 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-31 23:54:18,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 589 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-31 23:54:18,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2023-03-31 23:54:18,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 495. [2023-03-31 23:54:18,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 266 states have (on average 1.281954887218045) internal successors, (341), 320 states have internal predecessors, (341), 132 states have call successors, (132), 104 states have call predecessors, (132), 96 states have return successors, (130), 96 states have call predecessors, (130), 128 states have call successors, (130) [2023-03-31 23:54:18,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 603 transitions. [2023-03-31 23:54:18,367 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 603 transitions. Word has length 55 [2023-03-31 23:54:18,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:54:18,367 INFO L495 AbstractCegarLoop]: Abstraction has 495 states and 603 transitions. [2023-03-31 23:54:18,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-03-31 23:54:18,368 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 603 transitions. [2023-03-31 23:54:18,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-03-31 23:54:18,372 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:54:18,372 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:54:18,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-03-31 23:54:18,372 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:54:18,373 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:54:18,373 INFO L85 PathProgramCache]: Analyzing trace with hash 993292743, now seen corresponding path program 1 times [2023-03-31 23:54:18,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:54:18,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603298540] [2023-03-31 23:54:18,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:54:18,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:54:18,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:54:18,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:54:18,555 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:54:18,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603298540] [2023-03-31 23:54:18,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603298540] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:54:18,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:54:18,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-03-31 23:54:18,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027288137] [2023-03-31 23:54:18,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:54:18,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-03-31 23:54:18,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:54:18,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-03-31 23:54:18,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-03-31 23:54:18,558 INFO L87 Difference]: Start difference. First operand 495 states and 603 transitions. Second operand has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-03-31 23:54:18,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:54:18,986 INFO L93 Difference]: Finished difference Result 1315 states and 1722 transitions. [2023-03-31 23:54:18,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-03-31 23:54:18,987 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 58 [2023-03-31 23:54:18,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:54:18,992 INFO L225 Difference]: With dead ends: 1315 [2023-03-31 23:54:18,992 INFO L226 Difference]: Without dead ends: 845 [2023-03-31 23:54:18,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2023-03-31 23:54:18,996 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 178 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-03-31 23:54:18,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 341 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-03-31 23:54:18,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2023-03-31 23:54:19,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 756. [2023-03-31 23:54:19,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 756 states, 421 states have (on average 1.2066508313539193) internal successors, (508), 463 states have internal predecessors, (508), 166 states have call successors, (166), 142 states have call predecessors, (166), 168 states have return successors, (234), 172 states have call predecessors, (234), 162 states have call successors, (234) [2023-03-31 23:54:19,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 908 transitions. [2023-03-31 23:54:19,090 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 908 transitions. Word has length 58 [2023-03-31 23:54:19,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:54:19,090 INFO L495 AbstractCegarLoop]: Abstraction has 756 states and 908 transitions. [2023-03-31 23:54:19,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-03-31 23:54:19,091 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 908 transitions. [2023-03-31 23:54:19,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-03-31 23:54:19,093 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:54:19,093 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:54:19,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-03-31 23:54:19,094 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:54:19,094 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:54:19,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1497004761, now seen corresponding path program 1 times [2023-03-31 23:54:19,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:54:19,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220221474] [2023-03-31 23:54:19,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:54:19,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:54:19,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:54:19,421 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-03-31 23:54:19,421 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:54:19,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220221474] [2023-03-31 23:54:19,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220221474] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 23:54:19,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1717021846] [2023-03-31 23:54:19,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:54:19,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:54:19,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:54:19,429 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) [2023-03-31 23:54:19,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-03-31 23:54:19,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:54:19,587 INFO L262 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 33 conjunts are in the unsatisfiable core [2023-03-31 23:54:19,596 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 23:54:19,947 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-03-31 23:54:19,947 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-31 23:54:19,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1717021846] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:54:19,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-03-31 23:54:19,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [14] total 23 [2023-03-31 23:54:19,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227366014] [2023-03-31 23:54:19,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:54:19,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-03-31 23:54:19,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:54:19,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-03-31 23:54:19,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2023-03-31 23:54:19,950 INFO L87 Difference]: Start difference. First operand 756 states and 908 transitions. Second operand has 11 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 3 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (18), 5 states have call predecessors, (18), 3 states have call successors, (18) [2023-03-31 23:54:20,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:54:20,261 INFO L93 Difference]: Finished difference Result 1777 states and 2158 transitions. [2023-03-31 23:54:20,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-03-31 23:54:20,262 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 3 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (18), 5 states have call predecessors, (18), 3 states have call successors, (18) Word has length 94 [2023-03-31 23:54:20,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:54:20,266 INFO L225 Difference]: With dead ends: 1777 [2023-03-31 23:54:20,266 INFO L226 Difference]: Without dead ends: 1046 [2023-03-31 23:54:20,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2023-03-31 23:54:20,268 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 38 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-03-31 23:54:20,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 776 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-03-31 23:54:20,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2023-03-31 23:54:20,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 1034. [2023-03-31 23:54:20,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1034 states, 595 states have (on average 1.1949579831932773) internal successors, (711), 644 states have internal predecessors, (711), 218 states have call successors, (218), 194 states have call predecessors, (218), 220 states have return successors, (288), 224 states have call predecessors, (288), 214 states have call successors, (288) [2023-03-31 23:54:20,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1217 transitions. [2023-03-31 23:54:20,341 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1217 transitions. Word has length 94 [2023-03-31 23:54:20,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:54:20,341 INFO L495 AbstractCegarLoop]: Abstraction has 1034 states and 1217 transitions. [2023-03-31 23:54:20,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 3 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (18), 5 states have call predecessors, (18), 3 states have call successors, (18) [2023-03-31 23:54:20,342 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1217 transitions. [2023-03-31 23:54:20,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-03-31 23:54:20,343 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:54:20,344 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:54:20,356 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-03-31 23:54:20,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-03-31 23:54:20,550 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:54:20,551 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:54:20,551 INFO L85 PathProgramCache]: Analyzing trace with hash 480349471, now seen corresponding path program 1 times [2023-03-31 23:54:20,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:54:20,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148861210] [2023-03-31 23:54:20,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:54:20,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:54:20,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:54:20,845 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-03-31 23:54:20,845 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:54:20,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148861210] [2023-03-31 23:54:20,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148861210] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 23:54:20,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827390668] [2023-03-31 23:54:20,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:54:20,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:54:20,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:54:20,847 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) [2023-03-31 23:54:20,876 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-03-31 23:54:20,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:54:20,991 INFO L262 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 25 conjunts are in the unsatisfiable core [2023-03-31 23:54:21,001 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 23:54:21,098 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:54:21,098 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-31 23:54:21,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827390668] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:54:21,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-03-31 23:54:21,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [14] total 17 [2023-03-31 23:54:21,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10796973] [2023-03-31 23:54:21,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:54:21,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-03-31 23:54:21,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:54:21,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-03-31 23:54:21,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2023-03-31 23:54:21,100 INFO L87 Difference]: Start difference. First operand 1034 states and 1217 transitions. Second operand has 11 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (25), 3 states have call predecessors, (25), 6 states have return successors, (19), 6 states have call predecessors, (19), 3 states have call successors, (19) [2023-03-31 23:54:21,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:54:21,555 INFO L93 Difference]: Finished difference Result 2104 states and 2596 transitions. [2023-03-31 23:54:21,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-03-31 23:54:21,555 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (25), 3 states have call predecessors, (25), 6 states have return successors, (19), 6 states have call predecessors, (19), 3 states have call successors, (19) Word has length 97 [2023-03-31 23:54:21,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:54:21,562 INFO L225 Difference]: With dead ends: 2104 [2023-03-31 23:54:21,562 INFO L226 Difference]: Without dead ends: 1373 [2023-03-31 23:54:21,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=447, Unknown=0, NotChecked=0, Total=506 [2023-03-31 23:54:21,565 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 130 mSDsluCounter, 913 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 1069 SdHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-03-31 23:54:21,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 1069 Invalid, 649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-03-31 23:54:21,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1373 states. [2023-03-31 23:54:21,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1373 to 1341. [2023-03-31 23:54:21,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1341 states, 773 states have (on average 1.1953428201811125) internal successors, (924), 834 states have internal predecessors, (924), 287 states have call successors, (287), 253 states have call predecessors, (287), 280 states have return successors, (389), 290 states have call predecessors, (389), 283 states have call successors, (389) [2023-03-31 23:54:21,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1341 states to 1341 states and 1600 transitions. [2023-03-31 23:54:21,662 INFO L78 Accepts]: Start accepts. Automaton has 1341 states and 1600 transitions. Word has length 97 [2023-03-31 23:54:21,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:54:21,663 INFO L495 AbstractCegarLoop]: Abstraction has 1341 states and 1600 transitions. [2023-03-31 23:54:21,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (25), 3 states have call predecessors, (25), 6 states have return successors, (19), 6 states have call predecessors, (19), 3 states have call successors, (19) [2023-03-31 23:54:21,663 INFO L276 IsEmpty]: Start isEmpty. Operand 1341 states and 1600 transitions. [2023-03-31 23:54:21,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-03-31 23:54:21,672 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:54:21,673 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:54:21,683 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-03-31 23:54:21,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-03-31 23:54:21,882 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:54:21,882 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:54:21,882 INFO L85 PathProgramCache]: Analyzing trace with hash -793891648, now seen corresponding path program 1 times [2023-03-31 23:54:21,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:54:21,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670189782] [2023-03-31 23:54:21,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:54:21,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:54:21,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:54:22,145 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-03-31 23:54:22,145 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:54:22,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670189782] [2023-03-31 23:54:22,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670189782] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:54:22,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:54:22,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-03-31 23:54:22,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905433292] [2023-03-31 23:54:22,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:54:22,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-03-31 23:54:22,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:54:22,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-03-31 23:54:22,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-03-31 23:54:22,147 INFO L87 Difference]: Start difference. First operand 1341 states and 1600 transitions. Second operand has 10 states, 8 states have (on average 9.375) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (34), 3 states have call predecessors, (34), 4 states have return successors, (31), 6 states have call predecessors, (31), 3 states have call successors, (31) [2023-03-31 23:54:22,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:54:22,561 INFO L93 Difference]: Finished difference Result 2912 states and 3580 transitions. [2023-03-31 23:54:22,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-03-31 23:54:22,561 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 9.375) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (34), 3 states have call predecessors, (34), 4 states have return successors, (31), 6 states have call predecessors, (31), 3 states have call successors, (31) Word has length 158 [2023-03-31 23:54:22,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:54:22,563 INFO L225 Difference]: With dead ends: 2912 [2023-03-31 23:54:22,563 INFO L226 Difference]: Without dead ends: 0 [2023-03-31 23:54:22,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2023-03-31 23:54:22,569 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 134 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-03-31 23:54:22,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 792 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-03-31 23:54:22,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-03-31 23:54:22,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-03-31 23:54:22,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-03-31 23:54:22,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-03-31 23:54:22,570 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 158 [2023-03-31 23:54:22,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:54:22,570 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-03-31 23:54:22,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 9.375) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (34), 3 states have call predecessors, (34), 4 states have return successors, (31), 6 states have call predecessors, (31), 3 states have call successors, (31) [2023-03-31 23:54:22,571 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-03-31 23:54:22,571 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-03-31 23:54:22,573 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-03-31 23:54:22,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-03-31 23:54:22,575 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-03-31 23:54:25,702 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 11) no Hoare annotation was computed. [2023-03-31 23:54:25,702 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 11) no Hoare annotation was computed. [2023-03-31 23:54:25,702 INFO L899 garLoopResultBuilder]: For program point L768(lines 768 772) no Hoare annotation was computed. [2023-03-31 23:54:25,702 INFO L899 garLoopResultBuilder]: For program point L762-2(lines 762 783) no Hoare annotation was computed. [2023-03-31 23:54:25,702 INFO L899 garLoopResultBuilder]: For program point L784(lines 761 785) no Hoare annotation was computed. [2023-03-31 23:54:25,703 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 737 792) no Hoare annotation was computed. [2023-03-31 23:54:25,703 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_freeEXIT(lines 737 792) no Hoare annotation was computed. [2023-03-31 23:54:25,703 INFO L899 garLoopResultBuilder]: For program point L825(lines 825 829) no Hoare annotation was computed. [2023-03-31 23:54:25,703 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_resetFINAL(lines 793 852) no Hoare annotation was computed. [2023-03-31 23:54:25,703 INFO L899 garLoopResultBuilder]: For program point L819-2(lines 819 844) no Hoare annotation was computed. [2023-03-31 23:54:25,703 INFO L899 garLoopResultBuilder]: For program point L845(lines 818 846) no Hoare annotation was computed. [2023-03-31 23:54:25,703 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_resetEXIT(lines 793 852) no Hoare annotation was computed. [2023-03-31 23:54:25,703 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 793 852) no Hoare annotation was computed. [2023-03-31 23:54:25,703 INFO L899 garLoopResultBuilder]: For program point L838(line 838) no Hoare annotation was computed. [2023-03-31 23:54:25,703 INFO L899 garLoopResultBuilder]: For program point L838-1(line 838) no Hoare annotation was computed. [2023-03-31 23:54:25,704 INFO L899 garLoopResultBuilder]: For program point valid_productEXIT(lines 78 86) no Hoare annotation was computed. [2023-03-31 23:54:25,704 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 78 86) the Hoare annotation is: true [2023-03-31 23:54:25,704 INFO L895 garLoopResultBuilder]: At program point L673(line 673) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (<= ~waterLevel~0 1) (= 1 ~systemActive~0) (= main_~tmp~8 1))) [2023-03-31 23:54:25,704 INFO L895 garLoopResultBuilder]: At program point L673-1(line 673) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (<= ~waterLevel~0 1) (= 1 ~systemActive~0) (= main_~tmp~8 1))) [2023-03-31 23:54:25,704 INFO L899 garLoopResultBuilder]: For program point L671(lines 671 678) no Hoare annotation was computed. [2023-03-31 23:54:25,704 INFO L899 garLoopResultBuilder]: For program point L671-1(lines 671 678) no Hoare annotation was computed. [2023-03-31 23:54:25,705 INFO L899 garLoopResultBuilder]: For program point L669(line 669) no Hoare annotation was computed. [2023-03-31 23:54:25,705 INFO L895 garLoopResultBuilder]: At program point L668(line 668) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (<= ~waterLevel~0 1) (= 1 ~systemActive~0))) [2023-03-31 23:54:25,705 INFO L895 garLoopResultBuilder]: At program point L667(line 667) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (<= ~waterLevel~0 1) (= 1 ~systemActive~0))) [2023-03-31 23:54:25,705 INFO L895 garLoopResultBuilder]: At program point L667-1(line 667) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (<= ~waterLevel~0 1) (= 1 ~systemActive~0))) [2023-03-31 23:54:25,705 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 661 683) no Hoare annotation was computed. [2023-03-31 23:54:25,705 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 661 683) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (<= ~waterLevel~0 1) (= 1 ~systemActive~0))) [2023-03-31 23:54:25,705 INFO L899 garLoopResultBuilder]: For program point Specification2EXIT(lines 619 642) no Hoare annotation was computed. [2023-03-31 23:54:25,705 INFO L899 garLoopResultBuilder]: For program point L637(line 637) no Hoare annotation was computed. [2023-03-31 23:54:25,706 INFO L899 garLoopResultBuilder]: For program point L636(line 636) no Hoare annotation was computed. [2023-03-31 23:54:25,706 INFO L899 garLoopResultBuilder]: For program point Specification2FINAL(lines 619 642) no Hoare annotation was computed. [2023-03-31 23:54:25,706 INFO L899 garLoopResultBuilder]: For program point L635(line 635) no Hoare annotation was computed. [2023-03-31 23:54:25,706 INFO L899 garLoopResultBuilder]: For program point L634(line 634) no Hoare annotation was computed. [2023-03-31 23:54:25,706 INFO L899 garLoopResultBuilder]: For program point L633(line 633) no Hoare annotation was computed. [2023-03-31 23:54:25,706 INFO L899 garLoopResultBuilder]: For program point L632(line 632) no Hoare annotation was computed. [2023-03-31 23:54:25,706 INFO L899 garLoopResultBuilder]: For program point L631(line 631) no Hoare annotation was computed. [2023-03-31 23:54:25,706 INFO L899 garLoopResultBuilder]: For program point L630(line 630) no Hoare annotation was computed. [2023-03-31 23:54:25,706 INFO L899 garLoopResultBuilder]: For program point L629(line 629) no Hoare annotation was computed. [2023-03-31 23:54:25,706 INFO L899 garLoopResultBuilder]: For program point L628(line 628) no Hoare annotation was computed. [2023-03-31 23:54:25,706 INFO L899 garLoopResultBuilder]: For program point L627(line 627) no Hoare annotation was computed. [2023-03-31 23:54:25,706 INFO L899 garLoopResultBuilder]: For program point L626(line 626) no Hoare annotation was computed. [2023-03-31 23:54:25,707 INFO L899 garLoopResultBuilder]: For program point L625(line 625) no Hoare annotation was computed. [2023-03-31 23:54:25,707 INFO L899 garLoopResultBuilder]: For program point L624(line 624) no Hoare annotation was computed. [2023-03-31 23:54:25,707 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 619 642) no Hoare annotation was computed. [2023-03-31 23:54:25,707 INFO L899 garLoopResultBuilder]: For program point stopSystemEXIT(lines 340 354) no Hoare annotation was computed. [2023-03-31 23:54:25,707 INFO L895 garLoopResultBuilder]: At program point L346(line 346) the Hoare annotation is: (and (not (= |old(~pumpRunning~0)| 0)) (or (= 1 ~systemActive~0) (not (= |old(~systemActive~0)| 1))) (or (= |old(~systemActive~0)| 0) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= 0 ~systemActive~0))))) [2023-03-31 23:54:25,707 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 340 354) the Hoare annotation is: (and (or (= 1 ~systemActive~0) (not (= |old(~systemActive~0)| 1))) (or (= |old(~systemActive~0)| 0) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= 0 ~systemActive~0)))) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0))) [2023-03-31 23:54:25,707 INFO L899 garLoopResultBuilder]: For program point L344(lines 344 350) no Hoare annotation was computed. [2023-03-31 23:54:25,707 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 321 339) the Hoare annotation is: true [2023-03-31 23:54:25,708 INFO L902 garLoopResultBuilder]: At program point L328(line 328) the Hoare annotation is: true [2023-03-31 23:54:25,708 INFO L899 garLoopResultBuilder]: For program point L328-1(line 328) no Hoare annotation was computed. [2023-03-31 23:54:25,708 INFO L899 garLoopResultBuilder]: For program point isLowWaterLevelEXIT(lines 321 339) no Hoare annotation was computed. [2023-03-31 23:54:25,708 INFO L899 garLoopResultBuilder]: For program point select_featuresEXIT(lines 64 70) no Hoare annotation was computed. [2023-03-31 23:54:25,708 INFO L902 garLoopResultBuilder]: At program point select_featuresFINAL(lines 64 70) the Hoare annotation is: true [2023-03-31 23:54:25,708 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 1004 1049) no Hoare annotation was computed. [2023-03-31 23:54:25,708 INFO L899 garLoopResultBuilder]: For program point __utac__get_this_argtypeEXIT(lines 1004 1049) no Hoare annotation was computed. [2023-03-31 23:54:25,708 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 564 577) the Hoare annotation is: true [2023-03-31 23:54:25,708 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDryEXIT(lines 564 577) no Hoare annotation was computed. [2023-03-31 23:54:25,708 INFO L899 garLoopResultBuilder]: For program point L194-1(line 194) no Hoare annotation was computed. [2023-03-31 23:54:25,709 INFO L899 garLoopResultBuilder]: For program point L192(lines 192 209) no Hoare annotation was computed. [2023-03-31 23:54:25,709 INFO L899 garLoopResultBuilder]: For program point processEnvironmentEXIT(lines 188 212) no Hoare annotation was computed. [2023-03-31 23:54:25,709 INFO L895 garLoopResultBuilder]: At program point L207(line 207) the Hoare annotation is: (or (= 0 ~systemActive~0) (and (= ~pumpRunning~0 0) (= |old(~pumpRunning~0)| 0))) [2023-03-31 23:54:25,709 INFO L899 garLoopResultBuilder]: For program point L207-1(lines 188 212) no Hoare annotation was computed. [2023-03-31 23:54:25,709 INFO L895 garLoopResultBuilder]: At program point L202(line 202) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= 0 processEnvironment_~tmp~2) (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0))) [2023-03-31 23:54:25,709 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 188 212) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= 0 ~systemActive~0)) [2023-03-31 23:54:25,709 INFO L895 garLoopResultBuilder]: At program point L198(line 198) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~methaneLevelCritical~0 processEnvironment_~tmp~2)) .cse0) (or (not (= |old(~pumpRunning~0)| 0)) .cse0) (or (not (= ~methaneLevelCritical~0 0)) .cse0))) [2023-03-31 23:54:25,709 INFO L899 garLoopResultBuilder]: For program point L196(lines 196 204) no Hoare annotation was computed. [2023-03-31 23:54:25,710 INFO L895 garLoopResultBuilder]: At program point L194(line 194) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0) (or (not (= |old(~pumpRunning~0)| 0)) .cse0))) [2023-03-31 23:54:25,710 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 128 134) no Hoare annotation was computed. [2023-03-31 23:54:25,710 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 128 134) the Hoare annotation is: true [2023-03-31 23:54:25,710 INFO L895 garLoopResultBuilder]: At program point L417(line 417) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (= ~pumpRunning~0 0) .cse0) (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1)) (and .cse0 (not (= 0 ~systemActive~0))))) [2023-03-31 23:54:25,710 INFO L899 garLoopResultBuilder]: For program point L415(lines 415 421) no Hoare annotation was computed. [2023-03-31 23:54:25,710 INFO L895 garLoopResultBuilder]: At program point L415-1(lines 407 422) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (= ~pumpRunning~0 0) .cse0) (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1)) (and .cse0 (not (= 0 ~systemActive~0))))) [2023-03-31 23:54:25,710 INFO L899 garLoopResultBuilder]: For program point L378(lines 377 426) no Hoare annotation was computed. [2023-03-31 23:54:25,710 INFO L895 garLoopResultBuilder]: At program point L409(line 409) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (= test_~splverifierCounter~0 0) (not (= |old(~systemActive~0)| 1))) [2023-03-31 23:54:25,711 INFO L899 garLoopResultBuilder]: For program point L407(lines 407 422) no Hoare annotation was computed. [2023-03-31 23:54:25,711 INFO L899 garLoopResultBuilder]: For program point testFINAL(lines 367 434) no Hoare annotation was computed. [2023-03-31 23:54:25,711 INFO L895 garLoopResultBuilder]: At program point L399(line 399) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (= ~pumpRunning~0 0) .cse0) (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1)) (and .cse0 (not (= 0 ~systemActive~0))))) [2023-03-31 23:54:25,711 INFO L899 garLoopResultBuilder]: For program point L397(lines 397 403) no Hoare annotation was computed. [2023-03-31 23:54:25,711 INFO L899 garLoopResultBuilder]: For program point L397-1(lines 397 403) no Hoare annotation was computed. [2023-03-31 23:54:25,711 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 367 434) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (<= ~waterLevel~0 1) (= 1 ~systemActive~0))) [2023-03-31 23:54:25,711 INFO L895 garLoopResultBuilder]: At program point L424(lines 377 426) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (= ~pumpRunning~0 0) .cse0) (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse0 (= ~methaneLevelCritical~0 0) (not (= 0 ~systemActive~0))) (not (= |old(~systemActive~0)| 1)))) [2023-03-31 23:54:25,712 INFO L895 garLoopResultBuilder]: At program point L389(line 389) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (= ~pumpRunning~0 0) .cse0) (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse0 (= ~methaneLevelCritical~0 0) (not (= 0 ~systemActive~0))) (not (= |old(~systemActive~0)| 1)))) [2023-03-31 23:54:25,712 INFO L899 garLoopResultBuilder]: For program point L387(lines 387 393) no Hoare annotation was computed. [2023-03-31 23:54:25,712 INFO L899 garLoopResultBuilder]: For program point L387-1(lines 387 393) no Hoare annotation was computed. [2023-03-31 23:54:25,712 INFO L895 garLoopResultBuilder]: At program point L427(lines 376 428) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1))) [2023-03-31 23:54:25,712 INFO L899 garLoopResultBuilder]: For program point testEXIT(lines 367 434) no Hoare annotation was computed. [2023-03-31 23:54:25,712 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 213 220) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= ~methaneLevelCritical~0 0)) (= 0 ~systemActive~0)) [2023-03-31 23:54:25,712 INFO L899 garLoopResultBuilder]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 213 220) no Hoare annotation was computed. [2023-03-31 23:54:25,712 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 578 586) the Hoare annotation is: true [2023-03-31 23:54:25,712 INFO L899 garLoopResultBuilder]: For program point isLowWaterSensorDryEXIT(lines 578 586) no Hoare annotation was computed. [2023-03-31 23:54:25,713 INFO L895 garLoopResultBuilder]: At program point L469(line 469) the Hoare annotation is: (and (not (= ~pumpRunning~0 0)) (or (not (= ~methaneLevelCritical~0 0)) (= 0 ~systemActive~0))) [2023-03-31 23:54:25,713 INFO L899 garLoopResultBuilder]: For program point L467(lines 467 473) no Hoare annotation was computed. [2023-03-31 23:54:25,713 INFO L899 garLoopResultBuilder]: For program point L466(lines 466 476) no Hoare annotation was computed. [2023-03-31 23:54:25,713 INFO L895 garLoopResultBuilder]: At program point L464(line 464) the Hoare annotation is: (let ((.cse0 (not (= ~methaneLevelCritical~0 0)))) (and (or (not (= ~pumpRunning~0 0)) .cse0) (or .cse0 (= 0 ~systemActive~0)))) [2023-03-31 23:54:25,713 INFO L899 garLoopResultBuilder]: For program point L464-1(line 464) no Hoare annotation was computed. [2023-03-31 23:54:25,713 INFO L899 garLoopResultBuilder]: For program point L462(lines 462 479) no Hoare annotation was computed. [2023-03-31 23:54:25,713 INFO L899 garLoopResultBuilder]: For program point L462-1(lines 454 482) no Hoare annotation was computed. [2023-03-31 23:54:25,713 INFO L902 garLoopResultBuilder]: At program point L460(line 460) the Hoare annotation is: true [2023-03-31 23:54:25,713 INFO L899 garLoopResultBuilder]: For program point L460-1(line 460) no Hoare annotation was computed. [2023-03-31 23:54:25,714 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 454 482) the Hoare annotation is: true [2023-03-31 23:54:25,714 INFO L899 garLoopResultBuilder]: For program point __utac_acc__Specification2_spec__2EXIT(lines 454 482) no Hoare annotation was computed. [2023-03-31 23:54:25,714 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 532 554) no Hoare annotation was computed. [2023-03-31 23:54:25,714 INFO L899 garLoopResultBuilder]: For program point printEnvironmentEXIT(lines 532 554) no Hoare annotation was computed. [2023-03-31 23:54:25,714 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 446 453) the Hoare annotation is: true [2023-03-31 23:54:25,714 INFO L899 garLoopResultBuilder]: For program point __utac_acc__Specification2_spec__1EXIT(lines 446 453) no Hoare annotation was computed. [2023-03-31 23:54:25,714 INFO L899 garLoopResultBuilder]: For program point L226-1(line 226) no Hoare annotation was computed. [2023-03-31 23:54:25,714 INFO L899 garLoopResultBuilder]: For program point activatePumpEXIT(lines 221 237) no Hoare annotation was computed. [2023-03-31 23:54:25,714 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 221 237) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (= 0 ~systemActive~0)) [2023-03-31 23:54:25,715 INFO L895 garLoopResultBuilder]: At program point L232(line 232) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= 0 ~systemActive~0) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= activatePump_~tmp~3 0))) [2023-03-31 23:54:25,715 INFO L899 garLoopResultBuilder]: For program point L232-1(lines 221 237) no Hoare annotation was computed. [2023-03-31 23:54:25,715 INFO L899 garLoopResultBuilder]: For program point L228(lines 228 234) no Hoare annotation was computed. [2023-03-31 23:54:25,715 INFO L895 garLoopResultBuilder]: At program point L226(line 226) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (= 0 ~systemActive~0)) [2023-03-31 23:54:25,715 INFO L899 garLoopResultBuilder]: For program point isHighWaterLevelEXIT(lines 302 320) no Hoare annotation was computed. [2023-03-31 23:54:25,715 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 302 320) the Hoare annotation is: true [2023-03-31 23:54:25,715 INFO L902 garLoopResultBuilder]: At program point L309(line 309) the Hoare annotation is: true [2023-03-31 23:54:25,715 INFO L899 garLoopResultBuilder]: For program point L309-1(line 309) no Hoare annotation was computed. [2023-03-31 23:54:25,715 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 555 563) no Hoare annotation was computed. [2023-03-31 23:54:25,715 INFO L899 garLoopResultBuilder]: For program point getWaterLevelEXIT(lines 555 563) no Hoare annotation was computed. [2023-03-31 23:54:25,716 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 523 531) the Hoare annotation is: true [2023-03-31 23:54:25,716 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 523 531) no Hoare annotation was computed. [2023-03-31 23:54:25,716 INFO L895 garLoopResultBuilder]: At program point L117(line 117) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (= 0 ~systemActive~0))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0) (or (< 1 |old(~waterLevel~0)|) .cse1 (<= ~waterLevel~0 1)) (or .cse1 (not .cse0)))) [2023-03-31 23:54:25,716 INFO L895 garLoopResultBuilder]: At program point L115(lines 115 121) the Hoare annotation is: (let ((.cse2 (= 0 ~systemActive~0))) (let ((.cse1 (and (= ~methaneLevelCritical~0 0) (not .cse2))) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (= ~pumpRunning~0 0))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse0 .cse1) (or (< 1 |old(~waterLevel~0)|) .cse3 (and .cse0 (<= ~waterLevel~0 1)))))) [2023-03-31 23:54:25,716 INFO L895 garLoopResultBuilder]: At program point L110(line 110) the Hoare annotation is: (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= 0 ~systemActive~0)) (not (= |old(~pumpRunning~0)| 0))) [2023-03-31 23:54:25,716 INFO L899 garLoopResultBuilder]: For program point L108(lines 107 126) no Hoare annotation was computed. [2023-03-31 23:54:25,716 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 104 127) no Hoare annotation was computed. [2023-03-31 23:54:25,717 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 104 127) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= 0 ~systemActive~0)) (or .cse0 (= ~pumpRunning~0 0)) (or (< 1 |old(~waterLevel~0)|) .cse0 (<= ~waterLevel~0 1)))) [2023-03-31 23:54:25,717 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 104 127) no Hoare annotation was computed. [2023-03-31 23:54:25,717 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 589 618) no Hoare annotation was computed. [2023-03-31 23:54:25,717 INFO L899 garLoopResultBuilder]: For program point L603(lines 603 607) no Hoare annotation was computed. [2023-03-31 23:54:25,717 INFO L902 garLoopResultBuilder]: At program point L603-1(lines 603 607) the Hoare annotation is: true [2023-03-31 23:54:25,717 INFO L902 garLoopResultBuilder]: At program point L599-2(lines 599 613) the Hoare annotation is: true [2023-03-31 23:54:25,717 INFO L902 garLoopResultBuilder]: At program point L595(line 595) the Hoare annotation is: true [2023-03-31 23:54:25,717 INFO L899 garLoopResultBuilder]: For program point L595-1(line 595) no Hoare annotation was computed. [2023-03-31 23:54:25,717 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 589 618) the Hoare annotation is: true [2023-03-31 23:54:25,718 INFO L902 garLoopResultBuilder]: At program point L614(lines 589 618) the Hoare annotation is: true [2023-03-31 23:54:25,718 INFO L899 garLoopResultBuilder]: For program point L610(line 610) no Hoare annotation was computed. [2023-03-31 23:54:25,718 INFO L899 garLoopResultBuilder]: For program point lowerWaterLevelEXIT(lines 487 498) no Hoare annotation was computed. [2023-03-31 23:54:25,718 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 487 498) the Hoare annotation is: true [2023-03-31 23:54:25,718 INFO L899 garLoopResultBuilder]: For program point startSystemEXIT(lines 355 362) no Hoare annotation was computed. [2023-03-31 23:54:25,718 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 355 362) the Hoare annotation is: true [2023-03-31 23:54:25,718 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 136 160) no Hoare annotation was computed. [2023-03-31 23:54:25,718 INFO L895 garLoopResultBuilder]: At program point L155(line 155) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~methaneLevelCritical~0 0)) .cse0))) [2023-03-31 23:54:25,718 INFO L899 garLoopResultBuilder]: For program point L155-1(lines 136 160) no Hoare annotation was computed. [2023-03-31 23:54:25,719 INFO L895 garLoopResultBuilder]: At program point L150(line 150) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| 0))) (let ((.cse2 (not .cse0)) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or (= processEnvironment__wrappee__highWaterSensor_~tmp~0 0) .cse2 (< 1 ~waterLevel~0) .cse1) (or .cse2 (= ~pumpRunning~0 0) .cse1)))) [2023-03-31 23:54:25,719 INFO L895 garLoopResultBuilder]: At program point L146(line 146) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| 0))) (let ((.cse2 (not .cse0)) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or .cse2 (= ~pumpRunning~0 0) .cse1) (or .cse2 (< 1 ~waterLevel~0) .cse1)))) [2023-03-31 23:54:25,719 INFO L899 garLoopResultBuilder]: For program point L144(lines 144 152) no Hoare annotation was computed. [2023-03-31 23:54:25,719 INFO L895 garLoopResultBuilder]: At program point L142(line 142) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or (not .cse0) (= ~pumpRunning~0 0) .cse1))) [2023-03-31 23:54:25,719 INFO L899 garLoopResultBuilder]: For program point L142-1(line 142) no Hoare annotation was computed. [2023-03-31 23:54:25,719 INFO L899 garLoopResultBuilder]: For program point L140(lines 140 157) no Hoare annotation was computed. [2023-03-31 23:54:25,719 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 136 160) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~methaneLevelCritical~0 0)) .cse0))) [2023-03-31 23:54:25,720 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 499 510) no Hoare annotation was computed. [2023-03-31 23:54:25,720 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 499 510) the Hoare annotation is: true [2023-03-31 23:54:25,720 INFO L902 garLoopResultBuilder]: At program point ERROR(lines 436 443) the Hoare annotation is: true [2023-03-31 23:54:25,720 INFO L899 garLoopResultBuilder]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 440) no Hoare annotation was computed. [2023-03-31 23:54:25,720 INFO L899 garLoopResultBuilder]: For program point __automaton_failEXIT(lines 436 443) no Hoare annotation was computed. [2023-03-31 23:54:25,720 INFO L902 garLoopResultBuilder]: At program point select_helpersFINAL(lines 71 77) the Hoare annotation is: true [2023-03-31 23:54:25,720 INFO L899 garLoopResultBuilder]: For program point select_helpersEXIT(lines 71 77) no Hoare annotation was computed. [2023-03-31 23:54:25,720 INFO L895 garLoopResultBuilder]: At program point L181(line 181) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or (not .cse0) (= ~pumpRunning~0 0) .cse1))) [2023-03-31 23:54:25,720 INFO L899 garLoopResultBuilder]: For program point L181-1(lines 162 186) no Hoare annotation was computed. [2023-03-31 23:54:25,721 INFO L895 garLoopResultBuilder]: At program point L176(line 176) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~methaneLevelCritical~0 0)) .cse0))) [2023-03-31 23:54:25,721 INFO L895 garLoopResultBuilder]: At program point L172(line 172) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~methaneLevelCritical~0 0)) .cse0))) [2023-03-31 23:54:25,721 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 162 186) no Hoare annotation was computed. [2023-03-31 23:54:25,721 INFO L899 garLoopResultBuilder]: For program point L170(lines 170 178) no Hoare annotation was computed. [2023-03-31 23:54:25,721 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 162 186) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~methaneLevelCritical~0 0)) .cse0))) [2023-03-31 23:54:25,721 INFO L895 garLoopResultBuilder]: At program point L168(line 168) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~methaneLevelCritical~0 0)) .cse0))) [2023-03-31 23:54:25,721 INFO L899 garLoopResultBuilder]: For program point L168-1(line 168) no Hoare annotation was computed. [2023-03-31 23:54:25,721 INFO L899 garLoopResultBuilder]: For program point L166(lines 166 183) no Hoare annotation was computed. [2023-03-31 23:54:25,722 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 257 265) no Hoare annotation was computed. [2023-03-31 23:54:25,722 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 257 265) the Hoare annotation is: true [2023-03-31 23:54:25,722 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 266 301) no Hoare annotation was computed. [2023-03-31 23:54:25,722 INFO L899 garLoopResultBuilder]: For program point L296(line 296) no Hoare annotation was computed. [2023-03-31 23:54:25,722 INFO L899 garLoopResultBuilder]: For program point L296-1(line 296) no Hoare annotation was computed. [2023-03-31 23:54:25,722 INFO L899 garLoopResultBuilder]: For program point printPumpEXIT(lines 266 301) no Hoare annotation was computed. [2023-03-31 23:54:25,722 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_setEXIT(lines 691 736) no Hoare annotation was computed. [2023-03-31 23:54:25,722 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 691 736) no Hoare annotation was computed. [2023-03-31 23:54:25,722 INFO L895 garLoopResultBuilder]: At program point L655(line 655) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (<= ~waterLevel~0 1) (= 1 ~systemActive~0))) [2023-03-31 23:54:25,722 INFO L899 garLoopResultBuilder]: For program point runTestEXIT(lines 650 660) no Hoare annotation was computed. [2023-03-31 23:54:25,723 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 650 660) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (<= ~waterLevel~0 1) (= 1 ~systemActive~0))) [2023-03-31 23:54:25,723 INFO L899 garLoopResultBuilder]: For program point runTestFINAL(lines 650 660) no Hoare annotation was computed. [2023-03-31 23:54:25,723 INFO L902 garLoopResultBuilder]: At program point L251(line 251) the Hoare annotation is: true [2023-03-31 23:54:25,723 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 246 256) no Hoare annotation was computed. [2023-03-31 23:54:25,723 INFO L899 garLoopResultBuilder]: For program point L251-1(line 251) no Hoare annotation was computed. [2023-03-31 23:54:25,723 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 246 256) the Hoare annotation is: true [2023-03-31 23:54:25,723 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 238 245) no Hoare annotation was computed. [2023-03-31 23:54:25,723 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 238 245) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= 0 ~systemActive~0)) [2023-03-31 23:54:25,723 INFO L899 garLoopResultBuilder]: For program point __utac__get_this_argEXIT(lines 958 1003) no Hoare annotation was computed. [2023-03-31 23:54:25,723 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 958 1003) no Hoare annotation was computed. [2023-03-31 23:54:25,724 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 54 63) no Hoare annotation was computed. [2023-03-31 23:54:25,724 INFO L899 garLoopResultBuilder]: For program point select_oneEXIT(lines 54 63) no Hoare annotation was computed. [2023-03-31 23:54:25,724 INFO L899 garLoopResultBuilder]: For program point L925(lines 903 926) no Hoare annotation was computed. [2023-03-31 23:54:25,724 INFO L899 garLoopResultBuilder]: For program point L884(lines 884 900) no Hoare annotation was computed. [2023-03-31 23:54:25,724 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 855 957) no Hoare annotation was computed. [2023-03-31 23:54:25,724 INFO L899 garLoopResultBuilder]: For program point L905(lines 904 924) no Hoare annotation was computed. [2023-03-31 23:54:25,724 INFO L899 garLoopResultBuilder]: For program point L936(line 936) no Hoare annotation was computed. [2023-03-31 23:54:25,724 INFO L899 garLoopResultBuilder]: For program point L936-1(line 936) no Hoare annotation was computed. [2023-03-31 23:54:25,724 INFO L899 garLoopResultBuilder]: For program point __utac__error_stack_mgtFINAL(lines 855 957) no Hoare annotation was computed. [2023-03-31 23:54:25,724 INFO L899 garLoopResultBuilder]: For program point L901(lines 901 942) no Hoare annotation was computed. [2023-03-31 23:54:25,725 INFO L899 garLoopResultBuilder]: For program point L920(line 920) no Hoare annotation was computed. [2023-03-31 23:54:25,725 INFO L899 garLoopResultBuilder]: For program point L920-1(line 920) no Hoare annotation was computed. [2023-03-31 23:54:25,725 INFO L899 garLoopResultBuilder]: For program point __utac__error_stack_mgtEXIT(lines 855 957) no Hoare annotation was computed. [2023-03-31 23:54:25,725 INFO L899 garLoopResultBuilder]: For program point L879(lines 879 883) no Hoare annotation was computed. [2023-03-31 23:54:25,725 INFO L899 garLoopResultBuilder]: For program point L904-2(lines 904 924) no Hoare annotation was computed. [2023-03-31 23:54:25,725 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: (= ~pumpRunning~0 |old(~pumpRunning~0)|) [2023-03-31 23:54:25,725 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-03-31 23:54:25,725 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 511 522) the Hoare annotation is: (let ((.cse0 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse1 (= ~methaneLevelCritical~0 0))) (and (or .cse0 .cse1 (= 0 ~systemActive~0)) (or .cse0 (not (= ~pumpRunning~0 0)) .cse1))) [2023-03-31 23:54:25,725 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 511 522) no Hoare annotation was computed. [2023-03-31 23:54:25,725 INFO L899 garLoopResultBuilder]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2023-03-31 23:54:25,726 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-03-31 23:54:25,726 INFO L899 garLoopResultBuilder]: For program point setupEXIT(lines 643 649) no Hoare annotation was computed. [2023-03-31 23:54:25,726 INFO L902 garLoopResultBuilder]: At program point setupFINAL(lines 643 649) the Hoare annotation is: true [2023-03-31 23:54:25,726 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-03-31 23:54:25,726 INFO L895 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (<= ~waterLevel~0 1) (= 1 ~systemActive~0)) [2023-03-31 23:54:25,726 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-03-31 23:54:25,726 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-03-31 23:54:25,729 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:54:25,731 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-03-31 23:54:25,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.03 11:54:25 BoogieIcfgContainer [2023-03-31 23:54:25,742 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-03-31 23:54:25,742 INFO L158 Benchmark]: Toolchain (without parser) took 10943.77ms. Allocated memory was 183.5MB in the beginning and 400.6MB in the end (delta: 217.1MB). Free memory was 133.9MB in the beginning and 325.6MB in the end (delta: -191.7MB). Peak memory consumption was 182.2MB. Max. memory is 8.0GB. [2023-03-31 23:54:25,742 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 183.5MB. Free memory is still 136.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 23:54:25,744 INFO L158 Benchmark]: CACSL2BoogieTranslator took 449.62ms. Allocated memory is still 183.5MB. Free memory was 133.5MB in the beginning and 114.2MB in the end (delta: 19.3MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-03-31 23:54:25,744 INFO L158 Benchmark]: Boogie Preprocessor took 65.48ms. Allocated memory is still 183.5MB. Free memory was 114.2MB in the beginning and 110.8MB in the end (delta: 3.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-03-31 23:54:25,745 INFO L158 Benchmark]: RCFGBuilder took 1023.73ms. Allocated memory was 183.5MB in the beginning and 277.9MB in the end (delta: 94.4MB). Free memory was 110.8MB in the beginning and 201.8MB in the end (delta: -91.0MB). Peak memory consumption was 23.4MB. Max. memory is 8.0GB. [2023-03-31 23:54:25,745 INFO L158 Benchmark]: TraceAbstraction took 9398.35ms. Allocated memory was 277.9MB in the beginning and 400.6MB in the end (delta: 122.7MB). Free memory was 201.3MB in the beginning and 325.6MB in the end (delta: -124.3MB). Peak memory consumption was 154.6MB. Max. memory is 8.0GB. [2023-03-31 23:54:25,746 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 183.5MB. Free memory is still 136.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 449.62ms. Allocated memory is still 183.5MB. Free memory was 133.5MB in the beginning and 114.2MB in the end (delta: 19.3MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 65.48ms. Allocated memory is still 183.5MB. Free memory was 114.2MB in the beginning and 110.8MB in the end (delta: 3.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 1023.73ms. Allocated memory was 183.5MB in the beginning and 277.9MB in the end (delta: 94.4MB). Free memory was 110.8MB in the beginning and 201.8MB in the end (delta: -91.0MB). Peak memory consumption was 23.4MB. Max. memory is 8.0GB. * TraceAbstraction took 9398.35ms. Allocated memory was 277.9MB in the beginning and 400.6MB in the end (delta: 122.7MB). Free memory was 201.3MB in the beginning and 325.6MB in the end (delta: -124.3MB). Peak memory consumption was 154.6MB. 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: 440]: 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 46 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.3s, OverallIterations: 8, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 899 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 864 mSDsluCounter, 4613 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3530 mSDsCounter, 135 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2732 IncrementalHoareTripleChecker+Invalid, 2867 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 135 mSolverCounterUnsat, 1083 mSDtfsCounter, 2732 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 301 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1341occurred in iteration=7, InterpolantAutomatonStates: 73, 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, 8 MinimizatonAttempts, 157 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 75 LocationsWithAnnotation, 2844 PreInvPairs, 3042 NumberOfFragments, 1120 HoareAnnotationTreeSize, 2844 FomulaSimplifications, 2129 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 75 FomulaSimplificationsInter, 10456 FormulaSimplificationTreeSizeReductionInter, 2.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 797 NumberOfCodeBlocks, 797 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 787 ConstructedInterpolants, 0 QuantifiedInterpolants, 1429 SizeOfPredicates, 15 NumberOfNonLiveVariables, 838 ConjunctsInSsa, 58 ConjunctsInUnsatCore, 10 InterpolantComputations, 8 PerfectInterpolantSequences, 51/53 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: 599]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 589]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 376]: Loop Invariant Derived loop invariant: ((1 < \old(waterLevel) || !(\old(pumpRunning) == 0)) || !(\old(methaneLevelCritical) == 0)) || !(\old(systemActive) == 1) - InvariantResult [Line: 377]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0 && splverifierCounter == 0) || 1 < \old(waterLevel)) || !(\old(pumpRunning) == 0)) || !(\old(methaneLevelCritical) == 0)) || ((splverifierCounter == 0 && methaneLevelCritical == 0) && !(0 == systemActive))) || !(\old(systemActive) == 1) RESULT: Ultimate proved your program to be correct! [2023-03-31 23:54:25,784 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...