/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/product-lines/minepump_spec2_product18.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-03 01:00:28,927 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-03 01:00:28,929 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-03 01:00:28,960 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-03 01:00:28,960 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-03 01:00:28,961 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-03 01:00:28,962 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-03 01:00:28,964 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-03 01:00:28,965 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-03 01:00:28,966 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-03 01:00:28,967 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-03 01:00:28,968 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-03 01:00:28,968 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-03 01:00:28,969 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-03 01:00:28,970 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-03 01:00:28,971 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-03 01:00:28,971 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-03 01:00:28,972 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-03 01:00:28,973 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-03 01:00:28,975 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-03 01:00:28,976 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-03 01:00:28,977 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-03 01:00:28,978 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-03 01:00:28,978 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-03 01:00:28,981 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-03 01:00:28,982 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-03 01:00:28,982 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-03 01:00:28,983 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-03 01:00:28,983 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-03 01:00:28,984 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-03 01:00:28,984 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-03 01:00:28,985 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-03 01:00:28,985 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-03 01:00:28,986 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-03 01:00:28,987 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-03 01:00:28,987 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-03 01:00:28,988 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-03 01:00:28,988 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-03 01:00:28,988 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-03 01:00:28,989 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-03 01:00:28,989 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-03 01:00:28,990 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-03 01:00:29,015 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-03 01:00:29,016 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-03 01:00:29,017 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-03 01:00:29,017 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-03 01:00:29,018 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-03 01:00:29,018 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-03 01:00:29,018 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-03 01:00:29,018 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-03 01:00:29,018 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-03 01:00:29,018 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-03 01:00:29,019 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-03 01:00:29,019 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-03 01:00:29,019 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-03 01:00:29,020 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-03 01:00:29,020 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-03 01:00:29,020 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-03 01:00:29,020 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-03 01:00:29,020 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-03 01:00:29,021 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-03 01:00:29,021 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-03 01:00:29,021 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-03 01:00:29,021 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-03 01:00:29,021 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-03 01:00:29,021 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-03 01:00:29,021 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-03 01:00:29,021 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-03 01:00:29,022 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-03 01:00:29,022 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-03 01:00:29,022 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-03 01:00:29,022 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-03 01:00:29,022 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-03 01:00:29,022 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-03 01:00:29,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 01:00:29,023 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-03 01:00:29,023 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-03 01:00:29,023 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-03 01:00:29,023 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-03 01:00:29,023 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-03 01:00:29,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-03 01:00:29,023 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-03 01:00:29,023 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-03 01:00:29,024 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-03 01:00:29,252 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-03 01:00:29,276 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-03 01:00:29,278 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-03 01:00:29,279 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-03 01:00:29,279 INFO L275 PluginConnector]: CDTParser initialized [2023-04-03 01:00:29,280 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product18.cil.c [2023-04-03 01:00:30,475 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-03 01:00:30,700 INFO L351 CDTParser]: Found 1 translation units. [2023-04-03 01:00:30,701 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product18.cil.c [2023-04-03 01:00:30,716 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/283577da8/3c05d65b6e204e318d2181b10117f3ba/FLAG7249e7407 [2023-04-03 01:00:30,727 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/283577da8/3c05d65b6e204e318d2181b10117f3ba [2023-04-03 01:00:30,729 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-03 01:00:30,731 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-03 01:00:30,732 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-03 01:00:30,732 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-03 01:00:30,739 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-03 01:00:30,741 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 01:00:30" (1/1) ... [2023-04-03 01:00:30,742 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6155a495 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:00:30, skipping insertion in model container [2023-04-03 01:00:30,742 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 01:00:30" (1/1) ... [2023-04-03 01:00:30,748 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-03 01:00:30,796 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-03 01:00:31,046 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_product18.cil.c[18052,18065] [2023-04-03 01:00:31,056 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 01:00:31,070 INFO L203 MainTranslator]: Completed pre-run [2023-04-03 01:00:31,130 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_product18.cil.c[18052,18065] [2023-04-03 01:00:31,131 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 01:00:31,146 INFO L208 MainTranslator]: Completed translation [2023-04-03 01:00:31,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:00:31 WrapperNode [2023-04-03 01:00:31,146 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-03 01:00:31,149 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-03 01:00:31,149 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-03 01:00:31,149 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-03 01:00:31,169 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:00:31" (1/1) ... [2023-04-03 01:00:31,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:00:31" (1/1) ... [2023-04-03 01:00:31,180 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:00:31" (1/1) ... [2023-04-03 01:00:31,181 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:00:31" (1/1) ... [2023-04-03 01:00:31,211 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:00:31" (1/1) ... [2023-04-03 01:00:31,217 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:00:31" (1/1) ... [2023-04-03 01:00:31,222 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:00:31" (1/1) ... [2023-04-03 01:00:31,224 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:00:31" (1/1) ... [2023-04-03 01:00:31,231 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-03 01:00:31,232 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-03 01:00:31,232 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-03 01:00:31,232 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-03 01:00:31,232 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:00:31" (1/1) ... [2023-04-03 01:00:31,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 01:00:31,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 01:00:31,264 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-03 01:00:31,276 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-03 01:00:31,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-03 01:00:31,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-03 01:00:31,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-03 01:00:31,299 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-03 01:00:31,300 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-03 01:00:31,300 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-04-03 01:00:31,301 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-03 01:00:31,301 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-03 01:00:31,301 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-03 01:00:31,301 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-03 01:00:31,301 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-03 01:00:31,301 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-03 01:00:31,301 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2023-04-03 01:00:31,301 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2023-04-03 01:00:31,301 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-03 01:00:31,301 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-03 01:00:31,302 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-03 01:00:31,302 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-03 01:00:31,302 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-03 01:00:31,302 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-03 01:00:31,302 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-03 01:00:31,302 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-03 01:00:31,302 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-03 01:00:31,302 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-03 01:00:31,302 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-03 01:00:31,303 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-03 01:00:31,303 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-03 01:00:31,303 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-03 01:00:31,303 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-03 01:00:31,303 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-03 01:00:31,303 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2023-04-03 01:00:31,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-03 01:00:31,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-03 01:00:31,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-03 01:00:31,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-03 01:00:31,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-03 01:00:31,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-03 01:00:31,305 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2023-04-03 01:00:31,305 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2023-04-03 01:00:31,305 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-03 01:00:31,305 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-03 01:00:31,305 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-03 01:00:31,305 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-03 01:00:31,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-03 01:00:31,306 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-03 01:00:31,307 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-03 01:00:31,307 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-03 01:00:31,307 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-03 01:00:31,307 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-03 01:00:31,307 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2023-04-03 01:00:31,307 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-03 01:00:31,307 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-03 01:00:31,307 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-03 01:00:31,307 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-03 01:00:31,308 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-03 01:00:31,308 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2023-04-03 01:00:31,308 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2023-04-03 01:00:31,308 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-03 01:00:31,308 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-04-03 01:00:31,308 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2023-04-03 01:00:31,308 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-03 01:00:31,308 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-03 01:00:31,309 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-03 01:00:31,309 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-03 01:00:31,309 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-03 01:00:31,309 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-03 01:00:31,309 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-03 01:00:31,309 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2023-04-03 01:00:31,309 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-03 01:00:31,309 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-03 01:00:31,309 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-03 01:00:31,309 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-03 01:00:31,309 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-03 01:00:31,310 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-03 01:00:31,310 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-03 01:00:31,310 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-03 01:00:31,310 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-03 01:00:31,310 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-03 01:00:31,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-03 01:00:31,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-03 01:00:31,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-03 01:00:31,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-03 01:00:31,310 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-03 01:00:31,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-03 01:00:31,311 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-03 01:00:31,311 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-03 01:00:31,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-03 01:00:31,311 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-03 01:00:31,311 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-03 01:00:31,311 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-03 01:00:31,311 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-03 01:00:31,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-03 01:00:31,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-03 01:00:31,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-03 01:00:31,501 INFO L236 CfgBuilder]: Building ICFG [2023-04-03 01:00:31,504 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-03 01:00:32,133 INFO L277 CfgBuilder]: Performing block encoding [2023-04-03 01:00:32,280 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-03 01:00:32,280 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-03 01:00:32,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 01:00:32 BoogieIcfgContainer [2023-04-03 01:00:32,283 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-03 01:00:32,286 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-03 01:00:32,286 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-03 01:00:32,289 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-03 01:00:32,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.04 01:00:30" (1/3) ... [2023-04-03 01:00:32,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4834121 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 01:00:32, skipping insertion in model container [2023-04-03 01:00:32,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:00:31" (2/3) ... [2023-04-03 01:00:32,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4834121 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 01:00:32, skipping insertion in model container [2023-04-03 01:00:32,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 01:00:32" (3/3) ... [2023-04-03 01:00:32,295 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product18.cil.c [2023-04-03 01:00:32,312 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-03 01:00:32,312 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-03 01:00:32,354 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-03 01:00:32,360 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;@625ea594, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-03 01:00:32,361 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-03 01:00:32,365 INFO L276 IsEmpty]: Start isEmpty. Operand has 131 states, 59 states have (on average 1.271186440677966) internal successors, (75), 70 states have internal predecessors, (75), 42 states have call successors, (42), 26 states have call predecessors, (42), 26 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2023-04-03 01:00:32,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-04-03 01:00:32,375 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:00:32,375 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:00:32,376 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:00:32,383 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:00:32,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1645156211, now seen corresponding path program 1 times [2023-04-03 01:00:32,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:00:32,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302890778] [2023-04-03 01:00:32,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:00:32,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:00:32,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:00:32,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:00:32,642 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:00:32,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302890778] [2023-04-03 01:00:32,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302890778] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:00:32,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:00:32,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-03 01:00:32,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390682128] [2023-04-03 01:00:32,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:00:32,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-03 01:00:32,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:00:32,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-03 01:00:32,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-03 01:00:32,677 INFO L87 Difference]: Start difference. First operand has 131 states, 59 states have (on average 1.271186440677966) internal successors, (75), 70 states have internal predecessors, (75), 42 states have call successors, (42), 26 states have call predecessors, (42), 26 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) Second operand has 2 states, 2 states have (on average 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) [2023-04-03 01:00:32,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:00:32,731 INFO L93 Difference]: Finished difference Result 188 states and 227 transitions. [2023-04-03 01:00:32,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-03 01:00:32,733 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 [2023-04-03 01:00:32,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:00:32,740 INFO L225 Difference]: With dead ends: 188 [2023-04-03 01:00:32,740 INFO L226 Difference]: Without dead ends: 96 [2023-04-03 01:00:32,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-03 01:00:32,748 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-03 01:00:32,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 104 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-03 01:00:32,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-04-03 01:00:32,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2023-04-03 01:00:32,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 49 states have (on average 1.2244897959183674) internal successors, (60), 57 states have internal predecessors, (60), 27 states have call successors, (27), 24 states have call predecessors, (27), 19 states have return successors, (22), 20 states have call predecessors, (22), 22 states have call successors, (22) [2023-04-03 01:00:32,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 109 transitions. [2023-04-03 01:00:32,791 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 109 transitions. Word has length 46 [2023-04-03 01:00:32,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:00:32,791 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 109 transitions. [2023-04-03 01:00:32,792 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) [2023-04-03 01:00:32,792 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 109 transitions. [2023-04-03 01:00:32,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-04-03 01:00:32,794 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:00:32,795 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:00:32,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-03 01:00:32,795 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:00:32,796 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:00:32,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1667472672, now seen corresponding path program 1 times [2023-04-03 01:00:32,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:00:32,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54952131] [2023-04-03 01:00:32,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:00:32,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:00:32,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:00:33,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:00:33,003 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:00:33,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54952131] [2023-04-03 01:00:33,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54952131] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:00:33,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:00:33,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 01:00:33,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939719556] [2023-04-03 01:00:33,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:00:33,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 01:00:33,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:00:33,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 01:00:33,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 01:00:33,007 INFO L87 Difference]: Start difference. First operand 96 states and 109 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) [2023-04-03 01:00:33,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:00:33,057 INFO L93 Difference]: Finished difference Result 142 states and 161 transitions. [2023-04-03 01:00:33,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 01:00:33,059 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 [2023-04-03 01:00:33,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:00:33,061 INFO L225 Difference]: With dead ends: 142 [2023-04-03 01:00:33,061 INFO L226 Difference]: Without dead ends: 88 [2023-04-03 01:00:33,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 01:00:33,063 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 9 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-03 01:00:33,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 155 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-03 01:00:33,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2023-04-03 01:00:33,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2023-04-03 01:00:33,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 44 states have (on average 1.2272727272727273) internal successors, (54), 52 states have internal predecessors, (54), 24 states have call successors, (24), 23 states have call predecessors, (24), 19 states have return successors, (20), 18 states have call predecessors, (20), 20 states have call successors, (20) [2023-04-03 01:00:33,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 98 transitions. [2023-04-03 01:00:33,079 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 98 transitions. Word has length 47 [2023-04-03 01:00:33,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:00:33,079 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 98 transitions. [2023-04-03 01:00:33,081 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) [2023-04-03 01:00:33,081 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 98 transitions. [2023-04-03 01:00:33,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-04-03 01:00:33,087 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:00:33,087 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:00:33,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-03 01:00:33,087 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:00:33,088 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:00:33,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1668058023, now seen corresponding path program 1 times [2023-04-03 01:00:33,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:00:33,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091649180] [2023-04-03 01:00:33,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:00:33,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:00:33,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:00:33,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:00:33,345 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:00:33,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091649180] [2023-04-03 01:00:33,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091649180] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:00:33,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:00:33,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-03 01:00:33,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956653940] [2023-04-03 01:00:33,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:00:33,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-03 01:00:33,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:00:33,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-03 01:00:33,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-04-03 01:00:33,347 INFO L87 Difference]: Start difference. First operand 88 states and 98 transitions. Second operand has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 4 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-04-03 01:00:33,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:00:33,553 INFO L93 Difference]: Finished difference Result 151 states and 172 transitions. [2023-04-03 01:00:33,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 01:00:33,554 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 4 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 50 [2023-04-03 01:00:33,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:00:33,558 INFO L225 Difference]: With dead ends: 151 [2023-04-03 01:00:33,558 INFO L226 Difference]: Without dead ends: 88 [2023-04-03 01:00:33,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-04-03 01:00:33,566 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 87 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-03 01:00:33,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 232 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-03 01:00:33,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2023-04-03 01:00:33,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2023-04-03 01:00:33,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 44 states have (on average 1.2045454545454546) internal successors, (53), 51 states have internal predecessors, (53), 24 states have call successors, (24), 23 states have call predecessors, (24), 19 states have return successors, (20), 18 states have call predecessors, (20), 20 states have call successors, (20) [2023-04-03 01:00:33,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 97 transitions. [2023-04-03 01:00:33,589 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 97 transitions. Word has length 50 [2023-04-03 01:00:33,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:00:33,590 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 97 transitions. [2023-04-03 01:00:33,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 4 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-04-03 01:00:33,590 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 97 transitions. [2023-04-03 01:00:33,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-04-03 01:00:33,595 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:00:33,595 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] [2023-04-03 01:00:33,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-03 01:00:33,596 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:00:33,597 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:00:33,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1400618836, now seen corresponding path program 1 times [2023-04-03 01:00:33,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:00:33,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254724863] [2023-04-03 01:00:33,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:00:33,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:00:33,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:00:33,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:00:33,817 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:00:33,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254724863] [2023-04-03 01:00:33,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254724863] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:00:33,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:00:33,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-03 01:00:33,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745151278] [2023-04-03 01:00:33,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:00:33,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-03 01:00:33,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:00:33,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-03 01:00:33,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-03 01:00:33,819 INFO L87 Difference]: Start difference. First operand 88 states and 97 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2023-04-03 01:00:33,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:00:33,971 INFO L93 Difference]: Finished difference Result 206 states and 235 transitions. [2023-04-03 01:00:33,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-03 01:00:33,971 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) Word has length 58 [2023-04-03 01:00:33,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:00:33,977 INFO L225 Difference]: With dead ends: 206 [2023-04-03 01:00:33,977 INFO L226 Difference]: Without dead ends: 143 [2023-04-03 01:00:33,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-04-03 01:00:33,988 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 57 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-03 01:00:33,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 343 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-03 01:00:33,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2023-04-03 01:00:34,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 139. [2023-04-03 01:00:34,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 72 states have (on average 1.2083333333333333) internal successors, (87), 84 states have internal predecessors, (87), 36 states have call successors, (36), 34 states have call predecessors, (36), 30 states have return successors, (32), 28 states have call predecessors, (32), 32 states have call successors, (32) [2023-04-03 01:00:34,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 155 transitions. [2023-04-03 01:00:34,025 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 155 transitions. Word has length 58 [2023-04-03 01:00:34,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:00:34,026 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 155 transitions. [2023-04-03 01:00:34,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2023-04-03 01:00:34,026 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 155 transitions. [2023-04-03 01:00:34,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-04-03 01:00:34,029 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:00:34,029 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:00:34,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-03 01:00:34,030 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:00:34,030 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:00:34,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1159007922, now seen corresponding path program 1 times [2023-04-03 01:00:34,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:00:34,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365725252] [2023-04-03 01:00:34,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:00:34,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:00:34,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:00:34,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:00:34,210 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:00:34,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365725252] [2023-04-03 01:00:34,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365725252] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:00:34,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:00:34,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-03 01:00:34,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454685349] [2023-04-03 01:00:34,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:00:34,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-03 01:00:34,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:00:34,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-03 01:00:34,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-04-03 01:00:34,214 INFO L87 Difference]: Start difference. First operand 139 states and 155 transitions. Second operand has 7 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 4 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-04-03 01:00:34,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:00:34,389 INFO L93 Difference]: Finished difference Result 219 states and 252 transitions. [2023-04-03 01:00:34,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-03 01:00:34,390 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 4 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 61 [2023-04-03 01:00:34,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:00:34,393 INFO L225 Difference]: With dead ends: 219 [2023-04-03 01:00:34,393 INFO L226 Difference]: Without dead ends: 0 [2023-04-03 01:00:34,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-04-03 01:00:34,395 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 59 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-03 01:00:34,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 117 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-03 01:00:34,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-04-03 01:00:34,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-04-03 01:00:34,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-04-03 01:00:34,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-04-03 01:00:34,397 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 61 [2023-04-03 01:00:34,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:00:34,397 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-04-03 01:00:34,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 4 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-04-03 01:00:34,397 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-04-03 01:00:34,397 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-04-03 01:00:34,426 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-03 01:00:34,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-03 01:00:34,429 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-04-03 01:00:35,037 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 11) no Hoare annotation was computed. [2023-04-03 01:00:35,037 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 11) no Hoare annotation was computed. [2023-04-03 01:00:35,037 INFO L899 garLoopResultBuilder]: For program point L600(lines 600 604) no Hoare annotation was computed. [2023-04-03 01:00:35,037 INFO L899 garLoopResultBuilder]: For program point L594-2(lines 594 615) no Hoare annotation was computed. [2023-04-03 01:00:35,037 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 569 624) no Hoare annotation was computed. [2023-04-03 01:00:35,037 INFO L899 garLoopResultBuilder]: For program point L616(lines 593 617) no Hoare annotation was computed. [2023-04-03 01:00:35,037 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_freeEXIT(lines 569 624) no Hoare annotation was computed. [2023-04-03 01:00:35,038 INFO L899 garLoopResultBuilder]: For program point L670(line 670) no Hoare annotation was computed. [2023-04-03 01:00:35,038 INFO L899 garLoopResultBuilder]: For program point L670-1(line 670) no Hoare annotation was computed. [2023-04-03 01:00:35,038 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_resetFINAL(lines 625 684) no Hoare annotation was computed. [2023-04-03 01:00:35,038 INFO L899 garLoopResultBuilder]: For program point L657(lines 657 661) no Hoare annotation was computed. [2023-04-03 01:00:35,038 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_resetEXIT(lines 625 684) no Hoare annotation was computed. [2023-04-03 01:00:35,038 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 625 684) no Hoare annotation was computed. [2023-04-03 01:00:35,038 INFO L899 garLoopResultBuilder]: For program point L651-2(lines 651 676) no Hoare annotation was computed. [2023-04-03 01:00:35,038 INFO L899 garLoopResultBuilder]: For program point L677(lines 650 678) no Hoare annotation was computed. [2023-04-03 01:00:35,038 INFO L899 garLoopResultBuilder]: For program point valid_productEXIT(lines 417 425) no Hoare annotation was computed. [2023-04-03 01:00:35,038 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 417 425) the Hoare annotation is: true [2023-04-03 01:00:35,039 INFO L895 garLoopResultBuilder]: At program point L380(line 380) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= main_~tmp~3 1)) (not (= |old(~systemActive~0)| 1))) [2023-04-03 01:00:35,039 INFO L895 garLoopResultBuilder]: At program point L380-1(line 380) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= main_~tmp~3 1)) (not (= |old(~systemActive~0)| 1))) [2023-04-03 01:00:35,039 INFO L899 garLoopResultBuilder]: For program point L378(lines 378 385) no Hoare annotation was computed. [2023-04-03 01:00:35,039 INFO L899 garLoopResultBuilder]: For program point L378-1(lines 378 385) no Hoare annotation was computed. [2023-04-03 01:00:35,040 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 368 390) no Hoare annotation was computed. [2023-04-03 01:00:35,041 INFO L899 garLoopResultBuilder]: For program point L376(line 376) no Hoare annotation was computed. [2023-04-03 01:00:35,041 INFO L895 garLoopResultBuilder]: At program point L375(line 375) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) (not (= |old(~systemActive~0)| 1))) [2023-04-03 01:00:35,041 INFO L895 garLoopResultBuilder]: At program point L374(line 374) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) (not (= |old(~systemActive~0)| 1))) [2023-04-03 01:00:35,041 INFO L895 garLoopResultBuilder]: At program point L374-1(line 374) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) (not (= |old(~systemActive~0)| 1))) [2023-04-03 01:00:35,041 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 368 390) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) (not (= |old(~systemActive~0)| 1))) [2023-04-03 01:00:35,041 INFO L899 garLoopResultBuilder]: For program point Specification2EXIT(lines 322 345) no Hoare annotation was computed. [2023-04-03 01:00:35,041 INFO L899 garLoopResultBuilder]: For program point Specification2FINAL(lines 322 345) no Hoare annotation was computed. [2023-04-03 01:00:35,041 INFO L899 garLoopResultBuilder]: For program point L340(line 340) no Hoare annotation was computed. [2023-04-03 01:00:35,041 INFO L899 garLoopResultBuilder]: For program point L339(line 339) no Hoare annotation was computed. [2023-04-03 01:00:35,041 INFO L899 garLoopResultBuilder]: For program point L338(line 338) no Hoare annotation was computed. [2023-04-03 01:00:35,042 INFO L899 garLoopResultBuilder]: For program point L337(line 337) no Hoare annotation was computed. [2023-04-03 01:00:35,042 INFO L899 garLoopResultBuilder]: For program point L336(line 336) no Hoare annotation was computed. [2023-04-03 01:00:35,042 INFO L899 garLoopResultBuilder]: For program point L335(line 335) no Hoare annotation was computed. [2023-04-03 01:00:35,042 INFO L899 garLoopResultBuilder]: For program point L334(line 334) no Hoare annotation was computed. [2023-04-03 01:00:35,042 INFO L899 garLoopResultBuilder]: For program point L333(line 333) no Hoare annotation was computed. [2023-04-03 01:00:35,042 INFO L899 garLoopResultBuilder]: For program point L332(line 332) no Hoare annotation was computed. [2023-04-03 01:00:35,042 INFO L899 garLoopResultBuilder]: For program point L331(line 331) no Hoare annotation was computed. [2023-04-03 01:00:35,042 INFO L899 garLoopResultBuilder]: For program point L330(line 330) no Hoare annotation was computed. [2023-04-03 01:00:35,042 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 322 345) no Hoare annotation was computed. [2023-04-03 01:00:35,042 INFO L899 garLoopResultBuilder]: For program point L329(line 329) no Hoare annotation was computed. [2023-04-03 01:00:35,042 INFO L899 garLoopResultBuilder]: For program point L328(line 328) no Hoare annotation was computed. [2023-04-03 01:00:35,042 INFO L899 garLoopResultBuilder]: For program point L327(line 327) no Hoare annotation was computed. [2023-04-03 01:00:35,042 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 193 211) the Hoare annotation is: true [2023-04-03 01:00:35,042 INFO L902 garLoopResultBuilder]: At program point L200(line 200) the Hoare annotation is: true [2023-04-03 01:00:35,042 INFO L899 garLoopResultBuilder]: For program point L200-1(line 200) no Hoare annotation was computed. [2023-04-03 01:00:35,043 INFO L899 garLoopResultBuilder]: For program point isLowWaterLevelEXIT(lines 193 211) no Hoare annotation was computed. [2023-04-03 01:00:35,043 INFO L899 garLoopResultBuilder]: For program point select_featuresEXIT(lines 403 409) no Hoare annotation was computed. [2023-04-03 01:00:35,043 INFO L902 garLoopResultBuilder]: At program point select_featuresFINAL(lines 403 409) the Hoare annotation is: true [2023-04-03 01:00:35,043 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 836 881) no Hoare annotation was computed. [2023-04-03 01:00:35,043 INFO L899 garLoopResultBuilder]: For program point __utac__get_this_argtypeEXIT(lines 836 881) no Hoare annotation was computed. [2023-04-03 01:00:35,043 INFO L899 garLoopResultBuilder]: For program point processEnvironmentEXIT(lines 96 120) no Hoare annotation was computed. [2023-04-03 01:00:35,043 INFO L895 garLoopResultBuilder]: At program point L115(line 115) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0))) [2023-04-03 01:00:35,043 INFO L899 garLoopResultBuilder]: For program point L115-1(lines 96 120) no Hoare annotation was computed. [2023-04-03 01:00:35,043 INFO L895 garLoopResultBuilder]: At program point L110(line 110) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2023-04-03 01:00:35,043 INFO L895 garLoopResultBuilder]: At program point L106(line 106) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2023-04-03 01:00:35,043 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 96 120) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0))) [2023-04-03 01:00:35,043 INFO L899 garLoopResultBuilder]: For program point L104(lines 104 112) no Hoare annotation was computed. [2023-04-03 01:00:35,043 INFO L895 garLoopResultBuilder]: At program point L102(line 102) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2023-04-03 01:00:35,044 INFO L899 garLoopResultBuilder]: For program point L102-1(line 102) no Hoare annotation was computed. [2023-04-03 01:00:35,044 INFO L899 garLoopResultBuilder]: For program point L100(lines 100 117) no Hoare annotation was computed. [2023-04-03 01:00:35,044 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 88 94) no Hoare annotation was computed. [2023-04-03 01:00:35,044 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 88 94) the Hoare annotation is: true [2023-04-03 01:00:35,044 INFO L895 garLoopResultBuilder]: At program point L256(line 256) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) (= test_~splverifierCounter~0 0) (= 1 ~systemActive~0))) [2023-04-03 01:00:35,044 INFO L899 garLoopResultBuilder]: For program point L254(lines 254 260) no Hoare annotation was computed. [2023-04-03 01:00:35,044 INFO L899 garLoopResultBuilder]: For program point L254-1(lines 254 260) no Hoare annotation was computed. [2023-04-03 01:00:35,044 INFO L895 garLoopResultBuilder]: At program point L279(lines 234 281) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) (= test_~splverifierCounter~0 0) (= 1 ~systemActive~0))) [2023-04-03 01:00:35,044 INFO L899 garLoopResultBuilder]: For program point testFINAL(lines 224 289) no Hoare annotation was computed. [2023-04-03 01:00:35,044 INFO L895 garLoopResultBuilder]: At program point L246(line 246) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) (= test_~splverifierCounter~0 0) (= 1 ~systemActive~0))) [2023-04-03 01:00:35,044 INFO L899 garLoopResultBuilder]: For program point L244(lines 244 250) no Hoare annotation was computed. [2023-04-03 01:00:35,044 INFO L899 garLoopResultBuilder]: For program point L244-1(lines 244 250) no Hoare annotation was computed. [2023-04-03 01:00:35,044 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 224 289) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) (not (= |old(~systemActive~0)| 1))) [2023-04-03 01:00:35,045 INFO L895 garLoopResultBuilder]: At program point L282(lines 233 283) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1))) [2023-04-03 01:00:35,045 INFO L895 garLoopResultBuilder]: At program point L272-2(lines 264 277) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) (= test_~splverifierCounter~0 0) (= 1 ~systemActive~0))) [2023-04-03 01:00:35,045 INFO L899 garLoopResultBuilder]: For program point L235(lines 234 281) no Hoare annotation was computed. [2023-04-03 01:00:35,045 INFO L895 garLoopResultBuilder]: At program point L266(line 266) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) (= test_~splverifierCounter~0 0) (= 1 ~systemActive~0))) [2023-04-03 01:00:35,045 INFO L899 garLoopResultBuilder]: For program point L264(lines 264 277) no Hoare annotation was computed. [2023-04-03 01:00:35,045 INFO L899 garLoopResultBuilder]: For program point testEXIT(lines 224 289) no Hoare annotation was computed. [2023-04-03 01:00:35,045 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 507 515) the Hoare annotation is: true [2023-04-03 01:00:35,045 INFO L899 garLoopResultBuilder]: For program point isLowWaterSensorDryEXIT(lines 507 515) no Hoare annotation was computed. [2023-04-03 01:00:35,045 INFO L895 garLoopResultBuilder]: At program point L908(line 908) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (not (= 1 ~systemActive~0))) [2023-04-03 01:00:35,045 INFO L899 garLoopResultBuilder]: For program point L906(lines 906 912) no Hoare annotation was computed. [2023-04-03 01:00:35,045 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 893 921) the Hoare annotation is: true [2023-04-03 01:00:35,045 INFO L899 garLoopResultBuilder]: For program point L905(lines 905 915) no Hoare annotation was computed. [2023-04-03 01:00:35,046 INFO L895 garLoopResultBuilder]: At program point L903(line 903) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (not (= 1 ~systemActive~0)) (not (= ~methaneLevelCritical~0 0))) [2023-04-03 01:00:35,046 INFO L899 garLoopResultBuilder]: For program point L903-1(line 903) no Hoare annotation was computed. [2023-04-03 01:00:35,046 INFO L899 garLoopResultBuilder]: For program point L901(lines 901 918) no Hoare annotation was computed. [2023-04-03 01:00:35,046 INFO L899 garLoopResultBuilder]: For program point L901-1(lines 893 921) no Hoare annotation was computed. [2023-04-03 01:00:35,046 INFO L899 garLoopResultBuilder]: For program point __utac_acc__Specification2_spec__2EXIT(lines 893 921) no Hoare annotation was computed. [2023-04-03 01:00:35,046 INFO L902 garLoopResultBuilder]: At program point L899(line 899) the Hoare annotation is: true [2023-04-03 01:00:35,046 INFO L899 garLoopResultBuilder]: For program point L899-1(line 899) no Hoare annotation was computed. [2023-04-03 01:00:35,046 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 475 497) no Hoare annotation was computed. [2023-04-03 01:00:35,046 INFO L899 garLoopResultBuilder]: For program point printEnvironmentEXIT(lines 475 497) no Hoare annotation was computed. [2023-04-03 01:00:35,046 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 885 892) the Hoare annotation is: true [2023-04-03 01:00:35,046 INFO L899 garLoopResultBuilder]: For program point __utac_acc__Specification2_spec__1EXIT(lines 885 892) no Hoare annotation was computed. [2023-04-03 01:00:35,046 INFO L899 garLoopResultBuilder]: For program point activatePumpEXIT(lines 121 128) no Hoare annotation was computed. [2023-04-03 01:00:35,046 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 121 128) no Hoare annotation was computed. [2023-04-03 01:00:35,046 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 498 506) no Hoare annotation was computed. [2023-04-03 01:00:35,047 INFO L899 garLoopResultBuilder]: For program point getWaterLevelEXIT(lines 498 506) no Hoare annotation was computed. [2023-04-03 01:00:35,047 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 466 474) the Hoare annotation is: true [2023-04-03 01:00:35,047 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 466 474) no Hoare annotation was computed. [2023-04-03 01:00:35,047 INFO L895 garLoopResultBuilder]: At program point L77(line 77) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0))) [2023-04-03 01:00:35,047 INFO L895 garLoopResultBuilder]: At program point L75(lines 75 81) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0))) [2023-04-03 01:00:35,047 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 64 87) no Hoare annotation was computed. [2023-04-03 01:00:35,047 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 64 87) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0))) [2023-04-03 01:00:35,047 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 64 87) no Hoare annotation was computed. [2023-04-03 01:00:35,047 INFO L895 garLoopResultBuilder]: At program point L70(line 70) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2023-04-03 01:00:35,047 INFO L899 garLoopResultBuilder]: For program point L68(lines 67 86) no Hoare annotation was computed. [2023-04-03 01:00:35,047 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 292 321) no Hoare annotation was computed. [2023-04-03 01:00:35,047 INFO L902 garLoopResultBuilder]: At program point L317(lines 292 321) the Hoare annotation is: true [2023-04-03 01:00:35,047 INFO L899 garLoopResultBuilder]: For program point L313(line 313) no Hoare annotation was computed. [2023-04-03 01:00:35,047 INFO L899 garLoopResultBuilder]: For program point L306(lines 306 310) no Hoare annotation was computed. [2023-04-03 01:00:35,048 INFO L902 garLoopResultBuilder]: At program point L306-1(lines 306 310) the Hoare annotation is: true [2023-04-03 01:00:35,048 INFO L902 garLoopResultBuilder]: At program point L302-2(lines 302 316) the Hoare annotation is: true [2023-04-03 01:00:35,048 INFO L902 garLoopResultBuilder]: At program point L298(line 298) the Hoare annotation is: true [2023-04-03 01:00:35,048 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 292 321) the Hoare annotation is: true [2023-04-03 01:00:35,048 INFO L899 garLoopResultBuilder]: For program point L298-1(line 298) no Hoare annotation was computed. [2023-04-03 01:00:35,048 INFO L899 garLoopResultBuilder]: For program point lowerWaterLevelEXIT(lines 430 441) no Hoare annotation was computed. [2023-04-03 01:00:35,048 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 430 441) the Hoare annotation is: true [2023-04-03 01:00:35,048 INFO L899 garLoopResultBuilder]: For program point startSystemEXIT(lines 212 219) no Hoare annotation was computed. [2023-04-03 01:00:35,048 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 212 219) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (= 1 ~systemActive~0) (not (= |old(~systemActive~0)| 1))) [2023-04-03 01:00:35,048 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 442 453) no Hoare annotation was computed. [2023-04-03 01:00:35,048 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 442 453) the Hoare annotation is: true [2023-04-03 01:00:35,048 INFO L902 garLoopResultBuilder]: At program point ERROR(lines 923 930) the Hoare annotation is: true [2023-04-03 01:00:35,049 INFO L899 garLoopResultBuilder]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 927) no Hoare annotation was computed. [2023-04-03 01:00:35,049 INFO L899 garLoopResultBuilder]: For program point __automaton_failEXIT(lines 923 930) no Hoare annotation was computed. [2023-04-03 01:00:35,049 INFO L902 garLoopResultBuilder]: At program point select_helpersFINAL(lines 410 416) the Hoare annotation is: true [2023-04-03 01:00:35,049 INFO L899 garLoopResultBuilder]: For program point select_helpersEXIT(lines 410 416) no Hoare annotation was computed. [2023-04-03 01:00:35,049 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 148 156) no Hoare annotation was computed. [2023-04-03 01:00:35,049 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 148 156) the Hoare annotation is: true [2023-04-03 01:00:35,049 INFO L899 garLoopResultBuilder]: For program point L187(line 187) no Hoare annotation was computed. [2023-04-03 01:00:35,049 INFO L899 garLoopResultBuilder]: For program point L187-1(line 187) no Hoare annotation was computed. [2023-04-03 01:00:35,049 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 157 192) no Hoare annotation was computed. [2023-04-03 01:00:35,049 INFO L899 garLoopResultBuilder]: For program point printPumpEXIT(lines 157 192) no Hoare annotation was computed. [2023-04-03 01:00:35,049 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_setEXIT(lines 523 568) no Hoare annotation was computed. [2023-04-03 01:00:35,049 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 523 568) no Hoare annotation was computed. [2023-04-03 01:00:35,049 INFO L899 garLoopResultBuilder]: For program point runTestEXIT(lines 354 364) no Hoare annotation was computed. [2023-04-03 01:00:35,050 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 354 364) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) (not (= |old(~systemActive~0)| 1))) [2023-04-03 01:00:35,050 INFO L895 garLoopResultBuilder]: At program point L359(line 359) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) (not (= |old(~systemActive~0)| 1))) [2023-04-03 01:00:35,050 INFO L899 garLoopResultBuilder]: For program point runTestFINAL(lines 354 364) no Hoare annotation was computed. [2023-04-03 01:00:35,050 INFO L899 garLoopResultBuilder]: For program point L142(line 142) no Hoare annotation was computed. [2023-04-03 01:00:35,050 INFO L899 garLoopResultBuilder]: For program point L142-1(line 142) no Hoare annotation was computed. [2023-04-03 01:00:35,050 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 137 147) no Hoare annotation was computed. [2023-04-03 01:00:35,050 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 137 147) no Hoare annotation was computed. [2023-04-03 01:00:35,050 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 129 136) no Hoare annotation was computed. [2023-04-03 01:00:35,050 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 129 136) the Hoare annotation is: true [2023-04-03 01:00:35,050 INFO L899 garLoopResultBuilder]: For program point __utac__get_this_argEXIT(lines 790 835) no Hoare annotation was computed. [2023-04-03 01:00:35,050 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 790 835) no Hoare annotation was computed. [2023-04-03 01:00:35,050 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 393 402) no Hoare annotation was computed. [2023-04-03 01:00:35,050 INFO L899 garLoopResultBuilder]: For program point select_oneEXIT(lines 393 402) no Hoare annotation was computed. [2023-04-03 01:00:35,050 INFO L899 garLoopResultBuilder]: For program point L737(lines 736 756) no Hoare annotation was computed. [2023-04-03 01:00:35,051 INFO L899 garLoopResultBuilder]: For program point L768(line 768) no Hoare annotation was computed. [2023-04-03 01:00:35,051 INFO L899 garLoopResultBuilder]: For program point L768-1(line 768) no Hoare annotation was computed. [2023-04-03 01:00:35,051 INFO L899 garLoopResultBuilder]: For program point L733(lines 733 774) no Hoare annotation was computed. [2023-04-03 01:00:35,051 INFO L899 garLoopResultBuilder]: For program point L752(line 752) no Hoare annotation was computed. [2023-04-03 01:00:35,051 INFO L899 garLoopResultBuilder]: For program point L752-1(line 752) no Hoare annotation was computed. [2023-04-03 01:00:35,051 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 687 789) no Hoare annotation was computed. [2023-04-03 01:00:35,051 INFO L899 garLoopResultBuilder]: For program point L711(lines 711 715) no Hoare annotation was computed. [2023-04-03 01:00:35,051 INFO L899 garLoopResultBuilder]: For program point __utac__error_stack_mgtFINAL(lines 687 789) no Hoare annotation was computed. [2023-04-03 01:00:35,051 INFO L899 garLoopResultBuilder]: For program point L736-2(lines 736 756) no Hoare annotation was computed. [2023-04-03 01:00:35,051 INFO L899 garLoopResultBuilder]: For program point L757(lines 735 758) no Hoare annotation was computed. [2023-04-03 01:00:35,051 INFO L899 garLoopResultBuilder]: For program point __utac__error_stack_mgtEXIT(lines 687 789) no Hoare annotation was computed. [2023-04-03 01:00:35,051 INFO L899 garLoopResultBuilder]: For program point L716(lines 716 732) no Hoare annotation was computed. [2023-04-03 01:00:35,051 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: (= ~pumpRunning~0 |old(~pumpRunning~0)|) [2023-04-03 01:00:35,051 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-04-03 01:00:35,052 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 454 465) the Hoare annotation is: true [2023-04-03 01:00:35,052 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 454 465) no Hoare annotation was computed. [2023-04-03 01:00:35,052 INFO L899 garLoopResultBuilder]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2023-04-03 01:00:35,052 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-04-03 01:00:35,052 INFO L899 garLoopResultBuilder]: For program point setupEXIT(lines 346 352) no Hoare annotation was computed. [2023-04-03 01:00:35,052 INFO L902 garLoopResultBuilder]: At program point setupFINAL(lines 346 352) the Hoare annotation is: true [2023-04-03 01:00:35,052 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-04-03 01:00:35,052 INFO L895 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) [2023-04-03 01:00:35,052 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-04-03 01:00:35,052 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-04-03 01:00:35,063 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-04-03 01:00:35,065 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-03 01:00:35,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.04 01:00:35 BoogieIcfgContainer [2023-04-03 01:00:35,080 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-03 01:00:35,080 INFO L158 Benchmark]: Toolchain (without parser) took 4349.36ms. Allocated memory is still 289.4MB. Free memory was 240.2MB in the beginning and 202.4MB in the end (delta: 37.8MB). Peak memory consumption was 38.9MB. Max. memory is 8.0GB. [2023-04-03 01:00:35,080 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 176.2MB. Free memory is still 126.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-03 01:00:35,081 INFO L158 Benchmark]: CACSL2BoogieTranslator took 416.06ms. Allocated memory is still 289.4MB. Free memory was 240.2MB in the beginning and 221.9MB in the end (delta: 18.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-04-03 01:00:35,081 INFO L158 Benchmark]: Boogie Preprocessor took 82.06ms. Allocated memory is still 289.4MB. Free memory was 221.9MB in the beginning and 218.2MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-04-03 01:00:35,081 INFO L158 Benchmark]: RCFGBuilder took 1051.46ms. Allocated memory is still 289.4MB. Free memory was 218.2MB in the beginning and 159.5MB in the end (delta: 58.7MB). Peak memory consumption was 58.7MB. Max. memory is 8.0GB. [2023-04-03 01:00:35,081 INFO L158 Benchmark]: TraceAbstraction took 2793.52ms. Allocated memory is still 289.4MB. Free memory was 158.9MB in the beginning and 202.4MB in the end (delta: -43.5MB). There was no memory consumed. Max. memory is 8.0GB. [2023-04-03 01:00:35,082 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 176.2MB. Free memory is still 126.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 416.06ms. Allocated memory is still 289.4MB. Free memory was 240.2MB in the beginning and 221.9MB in the end (delta: 18.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 82.06ms. Allocated memory is still 289.4MB. Free memory was 221.9MB in the beginning and 218.2MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 1051.46ms. Allocated memory is still 289.4MB. Free memory was 218.2MB in the beginning and 159.5MB in the end (delta: 58.7MB). Peak memory consumption was 58.7MB. Max. memory is 8.0GB. * TraceAbstraction took 2793.52ms. Allocated memory is still 289.4MB. Free memory was 158.9MB in the beginning and 202.4MB in the end (delta: -43.5MB). There was no memory consumed. 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: 927]: 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 40 procedures, 176 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.7s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 219 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 212 mSDsluCounter, 951 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 570 mSDsCounter, 56 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 488 IncrementalHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 56 mSolverCounterUnsat, 381 mSDtfsCounter, 488 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=139occurred in iteration=4, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 53 LocationsWithAnnotation, 231 PreInvPairs, 245 NumberOfFragments, 508 HoareAnnotationTreeSize, 231 FomulaSimplifications, 8 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 53 FomulaSimplificationsInter, 748 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 262 NumberOfCodeBlocks, 262 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 257 ConstructedInterpolants, 0 QuantifiedInterpolants, 462 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 234]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(\old(methaneLevelCritical) == 0)) || !(\old(systemActive) == 1)) || ((pumpRunning == 0 && splverifierCounter == 0) && 1 == systemActive) - InvariantResult [Line: 233]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(\old(methaneLevelCritical) == 0)) || !(\old(systemActive) == 1) - InvariantResult [Line: 292]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 302]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-04-03 01:00:35,103 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...