/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/product-lines/minepump_spec1_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-03 00:58:39,219 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-03 00:58:39,221 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-03 00:58:39,258 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-03 00:58:39,259 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-03 00:58:39,261 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-03 00:58:39,264 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-03 00:58:39,266 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-03 00:58:39,268 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-03 00:58:39,272 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-03 00:58:39,273 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-03 00:58:39,274 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-03 00:58:39,274 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-03 00:58:39,276 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-03 00:58:39,277 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-03 00:58:39,278 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-03 00:58:39,279 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-03 00:58:39,279 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-03 00:58:39,281 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-03 00:58:39,285 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-03 00:58:39,286 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-03 00:58:39,286 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-03 00:58:39,287 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-03 00:58:39,288 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-03 00:58:39,295 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-03 00:58:39,295 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-03 00:58:39,296 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-03 00:58:39,297 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-03 00:58:39,297 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-03 00:58:39,298 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-03 00:58:39,298 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-03 00:58:39,299 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-03 00:58:39,300 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-03 00:58:39,301 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-03 00:58:39,302 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-03 00:58:39,302 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-03 00:58:39,302 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-03 00:58:39,302 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-03 00:58:39,303 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-03 00:58:39,303 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-03 00:58:39,304 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-03 00:58:39,306 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-03 00:58:39,330 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-03 00:58:39,331 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-03 00:58:39,331 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-03 00:58:39,331 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-03 00:58:39,332 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-03 00:58:39,332 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-03 00:58:39,332 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-03 00:58:39,332 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-03 00:58:39,332 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-03 00:58:39,332 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-03 00:58:39,333 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-03 00:58:39,333 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-03 00:58:39,333 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-03 00:58:39,333 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-03 00:58:39,333 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-03 00:58:39,334 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-03 00:58:39,334 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-03 00:58:39,334 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-03 00:58:39,334 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-03 00:58:39,334 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-03 00:58:39,334 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-03 00:58:39,334 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-03 00:58:39,334 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-03 00:58:39,334 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-03 00:58:39,335 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-03 00:58:39,335 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-03 00:58:39,335 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-03 00:58:39,335 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-03 00:58:39,335 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-03 00:58:39,335 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-03 00:58:39,336 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-03 00:58:39,336 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-03 00:58:39,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 00:58:39,336 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-03 00:58:39,336 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-03 00:58:39,336 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-03 00:58:39,336 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-03 00:58:39,336 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-03 00:58:39,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-03 00:58:39,337 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-03 00:58:39,337 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-03 00:58:39,337 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-03 00:58:39,534 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-03 00:58:39,552 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-03 00:58:39,554 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-03 00:58:39,555 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-03 00:58:39,555 INFO L275 PluginConnector]: CDTParser initialized [2023-04-03 00:58:39,556 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product35.cil.c [2023-04-03 00:58:40,605 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-03 00:58:40,847 INFO L351 CDTParser]: Found 1 translation units. [2023-04-03 00:58:40,847 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product35.cil.c [2023-04-03 00:58:40,856 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e2ff861f/5b0e278786e04e268a817c07f02a9866/FLAGb22971ecf [2023-04-03 00:58:41,167 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e2ff861f/5b0e278786e04e268a817c07f02a9866 [2023-04-03 00:58:41,169 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-03 00:58:41,170 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-03 00:58:41,171 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-03 00:58:41,171 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-03 00:58:41,177 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-03 00:58:41,177 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 12:58:41" (1/1) ... [2023-04-03 00:58:41,178 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@773d6935 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 12:58:41, skipping insertion in model container [2023-04-03 00:58:41,178 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 12:58:41" (1/1) ... [2023-04-03 00:58:41,182 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-03 00:58:41,213 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-03 00:58:41,351 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product35.cil.c[3064,3077] [2023-04-03 00:58:41,455 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 00:58:41,474 INFO L203 MainTranslator]: Completed pre-run [2023-04-03 00:58:41,510 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product35.cil.c[3064,3077] [2023-04-03 00:58:41,541 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 00:58:41,554 INFO L208 MainTranslator]: Completed translation [2023-04-03 00:58:41,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 12:58:41 WrapperNode [2023-04-03 00:58:41,555 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-03 00:58:41,556 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-03 00:58:41,556 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-03 00:58:41,556 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-03 00:58:41,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 12:58:41" (1/1) ... [2023-04-03 00:58:41,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 12:58:41" (1/1) ... [2023-04-03 00:58:41,579 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 12:58:41" (1/1) ... [2023-04-03 00:58:41,579 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 12:58:41" (1/1) ... [2023-04-03 00:58:41,608 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 12:58:41" (1/1) ... [2023-04-03 00:58:41,612 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 12:58:41" (1/1) ... [2023-04-03 00:58:41,614 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 12:58:41" (1/1) ... [2023-04-03 00:58:41,616 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 12:58:41" (1/1) ... [2023-04-03 00:58:41,619 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-03 00:58:41,620 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-03 00:58:41,620 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-03 00:58:41,620 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-03 00:58:41,630 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 12:58:41" (1/1) ... [2023-04-03 00:58:41,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 00:58:41,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 00:58:41,662 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-03 00:58:41,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-03 00:58:41,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-03 00:58:41,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-03 00:58:41,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-03 00:58:41,692 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-03 00:58:41,695 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-03 00:58:41,695 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-03 00:58:41,695 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-03 00:58:41,695 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-03 00:58:41,695 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-03 00:58:41,696 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-03 00:58:41,700 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2023-04-03 00:58:41,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-03 00:58:41,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2023-04-03 00:58:41,701 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-03 00:58:41,701 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-03 00:58:41,701 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-04-03 00:58:41,701 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-03 00:58:41,701 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-03 00:58:41,701 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-03 00:58:41,701 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-03 00:58:41,701 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-03 00:58:41,701 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-03 00:58:41,701 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2023-04-03 00:58:41,702 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2023-04-03 00:58:41,702 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-03 00:58:41,702 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-03 00:58:41,702 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-03 00:58:41,702 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-03 00:58:41,702 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-03 00:58:41,702 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-03 00:58:41,702 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-03 00:58:41,702 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-03 00:58:41,702 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-03 00:58:41,702 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-03 00:58:41,702 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-03 00:58:41,702 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-03 00:58:41,703 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-03 00:58:41,703 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-03 00:58:41,703 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-03 00:58:41,703 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-03 00:58:41,703 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-03 00:58:41,703 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-03 00:58:41,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-03 00:58:41,703 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-03 00:58:41,703 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-03 00:58:41,703 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-03 00:58:41,703 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-03 00:58:41,703 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-03 00:58:41,703 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-03 00:58:41,704 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-03 00:58:41,704 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-03 00:58:41,704 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2023-04-03 00:58:41,704 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-03 00:58:41,704 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-03 00:58:41,704 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2023-04-03 00:58:41,704 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2023-04-03 00:58:41,704 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-03 00:58:41,704 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-03 00:58:41,704 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-03 00:58:41,704 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-03 00:58:41,704 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-03 00:58:41,704 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-03 00:58:41,705 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-03 00:58:41,705 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-04-03 00:58:41,705 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2023-04-03 00:58:41,705 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-03 00:58:41,705 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-03 00:58:41,705 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-03 00:58:41,705 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-03 00:58:41,705 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-03 00:58:41,705 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-03 00:58:41,705 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-03 00:58:41,705 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-03 00:58:41,705 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-03 00:58:41,705 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-03 00:58:41,706 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-03 00:58:41,706 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-03 00:58:41,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-03 00:58:41,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-03 00:58:41,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-03 00:58:41,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-03 00:58:41,706 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-03 00:58:41,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-03 00:58:41,706 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-03 00:58:41,706 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-03 00:58:41,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-03 00:58:41,706 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-03 00:58:41,706 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-03 00:58:41,707 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-03 00:58:41,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-03 00:58:41,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-03 00:58:41,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-03 00:58:41,842 INFO L236 CfgBuilder]: Building ICFG [2023-04-03 00:58:41,844 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-03 00:58:42,246 INFO L277 CfgBuilder]: Performing block encoding [2023-04-03 00:58:42,326 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-03 00:58:42,326 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-03 00:58:42,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 12:58:42 BoogieIcfgContainer [2023-04-03 00:58:42,328 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-03 00:58:42,330 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-03 00:58:42,330 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-03 00:58:42,332 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-03 00:58:42,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.04 12:58:41" (1/3) ... [2023-04-03 00:58:42,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6011e5e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 12:58:42, skipping insertion in model container [2023-04-03 00:58:42,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 12:58:41" (2/3) ... [2023-04-03 00:58:42,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6011e5e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 12:58:42, skipping insertion in model container [2023-04-03 00:58:42,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 12:58:42" (3/3) ... [2023-04-03 00:58:42,334 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product35.cil.c [2023-04-03 00:58:42,347 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-03 00:58:42,347 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-03 00:58:42,388 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-03 00:58:42,394 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;@65d04e9e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-03 00:58:42,394 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-03 00:58:42,398 INFO L276 IsEmpty]: Start isEmpty. Operand has 132 states, 60 states have (on average 1.2833333333333334) internal successors, (77), 72 states have internal predecessors, (77), 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 00:58:42,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-04-03 00:58:42,404 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 00:58:42,405 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 00:58:42,405 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 00:58:42,408 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 00:58:42,409 INFO L85 PathProgramCache]: Analyzing trace with hash -915344983, now seen corresponding path program 1 times [2023-04-03 00:58:42,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 00:58:42,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587959212] [2023-04-03 00:58:42,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 00:58:42,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 00:58:42,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 00:58:42,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 00:58:42,609 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 00:58:42,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587959212] [2023-04-03 00:58:42,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587959212] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 00:58:42,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 00:58:42,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-03 00:58:42,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228078259] [2023-04-03 00:58:42,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 00:58:42,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-03 00:58:42,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 00:58:42,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-03 00:58:42,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-03 00:58:42,655 INFO L87 Difference]: Start difference. First operand has 132 states, 60 states have (on average 1.2833333333333334) internal successors, (77), 72 states have internal predecessors, (77), 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 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-03 00:58:42,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 00:58:42,728 INFO L93 Difference]: Finished difference Result 193 states and 234 transitions. [2023-04-03 00:58:42,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-03 00:58:42,730 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 42 [2023-04-03 00:58:42,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 00:58:42,739 INFO L225 Difference]: With dead ends: 193 [2023-04-03 00:58:42,739 INFO L226 Difference]: Without dead ends: 97 [2023-04-03 00:58:42,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-03 00:58:42,747 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-03 00:58:42,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 107 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-03 00:58:42,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-04-03 00:58:42,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2023-04-03 00:58:42,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 50 states have (on average 1.24) internal successors, (62), 59 states have internal predecessors, (62), 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 00:58:42,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 111 transitions. [2023-04-03 00:58:42,786 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 111 transitions. Word has length 42 [2023-04-03 00:58:42,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 00:58:42,786 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 111 transitions. [2023-04-03 00:58:42,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-03 00:58:42,787 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 111 transitions. [2023-04-03 00:58:42,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-04-03 00:58:42,788 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 00:58:42,789 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 00:58:42,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-03 00:58:42,789 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 00:58:42,789 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 00:58:42,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1663432173, now seen corresponding path program 1 times [2023-04-03 00:58:42,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 00:58:42,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994011386] [2023-04-03 00:58:42,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 00:58:42,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 00:58:42,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 00:58:42,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 00:58:42,902 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 00:58:42,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994011386] [2023-04-03 00:58:42,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994011386] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 00:58:42,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 00:58:42,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 00:58:42,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764770450] [2023-04-03 00:58:42,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 00:58:42,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 00:58:42,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 00:58:42,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 00:58:42,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 00:58:42,905 INFO L87 Difference]: Start difference. First operand 97 states and 111 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-03 00:58:42,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 00:58:42,951 INFO L93 Difference]: Finished difference Result 142 states and 161 transitions. [2023-04-03 00:58:42,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 00:58:42,953 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 43 [2023-04-03 00:58:42,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 00:58:42,954 INFO L225 Difference]: With dead ends: 142 [2023-04-03 00:58:42,954 INFO L226 Difference]: Without dead ends: 89 [2023-04-03 00:58:42,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 00:58:42,955 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 11 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-03 00:58:42,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 158 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-03 00:58:42,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-04-03 00:58:42,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2023-04-03 00:58:42,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 45 states have (on average 1.2444444444444445) internal successors, (56), 54 states have internal predecessors, (56), 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 00:58:42,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 100 transitions. [2023-04-03 00:58:42,962 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 100 transitions. Word has length 43 [2023-04-03 00:58:42,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 00:58:42,962 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 100 transitions. [2023-04-03 00:58:42,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-03 00:58:42,963 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 100 transitions. [2023-04-03 00:58:42,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-04-03 00:58:42,964 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 00:58:42,964 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 00:58:42,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-03 00:58:42,964 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 00:58:42,964 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 00:58:42,965 INFO L85 PathProgramCache]: Analyzing trace with hash 591726644, now seen corresponding path program 1 times [2023-04-03 00:58:42,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 00:58:42,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919163535] [2023-04-03 00:58:42,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 00:58:42,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 00:58:42,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 00:58:43,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 00:58:43,208 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 00:58:43,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919163535] [2023-04-03 00:58:43,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919163535] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 00:58:43,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 00:58:43,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-03 00:58:43,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801025755] [2023-04-03 00:58:43,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 00:58:43,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-03 00:58:43,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 00:58:43,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-03 00:58:43,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-04-03 00:58:43,210 INFO L87 Difference]: Start difference. First operand 89 states and 100 transitions. Second operand has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 4 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-04-03 00:58:43,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 00:58:43,468 INFO L93 Difference]: Finished difference Result 267 states and 313 transitions. [2023-04-03 00:58:43,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 00:58:43,468 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 4 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 46 [2023-04-03 00:58:43,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 00:58:43,474 INFO L225 Difference]: With dead ends: 267 [2023-04-03 00:58:43,474 INFO L226 Difference]: Without dead ends: 200 [2023-04-03 00:58:43,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-04-03 00:58:43,482 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 195 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-03 00:58:43,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 397 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-03 00:58:43,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2023-04-03 00:58:43,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 182. [2023-04-03 00:58:43,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 99 states have (on average 1.2727272727272727) internal successors, (126), 115 states have internal predecessors, (126), 44 states have call successors, (44), 42 states have call predecessors, (44), 38 states have return successors, (41), 36 states have call predecessors, (41), 40 states have call successors, (41) [2023-04-03 00:58:43,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 211 transitions. [2023-04-03 00:58:43,523 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 211 transitions. Word has length 46 [2023-04-03 00:58:43,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 00:58:43,523 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 211 transitions. [2023-04-03 00:58:43,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 4 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-04-03 00:58:43,524 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 211 transitions. [2023-04-03 00:58:43,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-04-03 00:58:43,530 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 00:58:43,530 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 00:58:43,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-03 00:58:43,530 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 00:58:43,534 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 00:58:43,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1613940260, now seen corresponding path program 1 times [2023-04-03 00:58:43,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 00:58:43,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331895236] [2023-04-03 00:58:43,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 00:58:43,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 00:58:43,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 00:58:43,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 00:58:43,736 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 00:58:43,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331895236] [2023-04-03 00:58:43,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331895236] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 00:58:43,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 00:58:43,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-03 00:58:43,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580112086] [2023-04-03 00:58:43,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 00:58:43,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-03 00:58:43,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 00:58:43,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-03 00:58:43,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-04-03 00:58:43,738 INFO L87 Difference]: Start difference. First operand 182 states and 211 transitions. Second operand has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-03 00:58:44,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 00:58:44,003 INFO L93 Difference]: Finished difference Result 477 states and 604 transitions. [2023-04-03 00:58:44,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-03 00:58:44,003 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 51 [2023-04-03 00:58:44,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 00:58:44,011 INFO L225 Difference]: With dead ends: 477 [2023-04-03 00:58:44,011 INFO L226 Difference]: Without dead ends: 317 [2023-04-03 00:58:44,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2023-04-03 00:58:44,021 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 115 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-03 00:58:44,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 221 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-03 00:58:44,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2023-04-03 00:58:44,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 273. [2023-04-03 00:58:44,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 154 states have (on average 1.2272727272727273) internal successors, (189), 169 states have internal predecessors, (189), 60 states have call successors, (60), 58 states have call predecessors, (60), 58 states have return successors, (71), 57 states have call predecessors, (71), 56 states have call successors, (71) [2023-04-03 00:58:44,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 320 transitions. [2023-04-03 00:58:44,052 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 320 transitions. Word has length 51 [2023-04-03 00:58:44,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 00:58:44,052 INFO L495 AbstractCegarLoop]: Abstraction has 273 states and 320 transitions. [2023-04-03 00:58:44,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-03 00:58:44,052 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 320 transitions. [2023-04-03 00:58:44,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-04-03 00:58:44,054 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 00:58:44,054 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 00:58:44,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-03 00:58:44,055 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 00:58:44,055 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 00:58:44,055 INFO L85 PathProgramCache]: Analyzing trace with hash 36618478, now seen corresponding path program 1 times [2023-04-03 00:58:44,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 00:58:44,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221476502] [2023-04-03 00:58:44,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 00:58:44,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 00:58:44,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 00:58:44,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 00:58:44,296 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 00:58:44,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221476502] [2023-04-03 00:58:44,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221476502] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 00:58:44,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 00:58:44,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-03 00:58:44,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031833073] [2023-04-03 00:58:44,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 00:58:44,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-03 00:58:44,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 00:58:44,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-03 00:58:44,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-04-03 00:58:44,298 INFO L87 Difference]: Start difference. First operand 273 states and 320 transitions. Second operand has 12 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 4 states have call successors, (17), 3 states have call predecessors, (17), 6 states have return successors, (11), 6 states have call predecessors, (11), 4 states have call successors, (11) [2023-04-03 00:58:44,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 00:58:44,688 INFO L93 Difference]: Finished difference Result 865 states and 1035 transitions. [2023-04-03 00:58:44,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-03 00:58:44,689 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 4 states have call successors, (17), 3 states have call predecessors, (17), 6 states have return successors, (11), 6 states have call predecessors, (11), 4 states have call successors, (11) Word has length 63 [2023-04-03 00:58:44,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 00:58:44,694 INFO L225 Difference]: With dead ends: 865 [2023-04-03 00:58:44,694 INFO L226 Difference]: Without dead ends: 614 [2023-04-03 00:58:44,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2023-04-03 00:58:44,695 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 209 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-03 00:58:44,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 692 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-03 00:58:44,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2023-04-03 00:58:44,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 597. [2023-04-03 00:58:44,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 356 states have (on average 1.2359550561797752) internal successors, (440), 383 states have internal predecessors, (440), 121 states have call successors, (121), 121 states have call predecessors, (121), 119 states have return successors, (146), 117 states have call predecessors, (146), 117 states have call successors, (146) [2023-04-03 00:58:44,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 707 transitions. [2023-04-03 00:58:44,761 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 707 transitions. Word has length 63 [2023-04-03 00:58:44,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 00:58:44,761 INFO L495 AbstractCegarLoop]: Abstraction has 597 states and 707 transitions. [2023-04-03 00:58:44,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 4 states have call successors, (17), 3 states have call predecessors, (17), 6 states have return successors, (11), 6 states have call predecessors, (11), 4 states have call successors, (11) [2023-04-03 00:58:44,761 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 707 transitions. [2023-04-03 00:58:44,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-04-03 00:58:44,763 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 00:58:44,764 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 00:58:44,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-03 00:58:44,764 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 00:58:44,764 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 00:58:44,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1386000670, now seen corresponding path program 1 times [2023-04-03 00:58:44,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 00:58:44,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837413299] [2023-04-03 00:58:44,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 00:58:44,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 00:58:44,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 00:58:44,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 00:58:44,891 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 00:58:44,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837413299] [2023-04-03 00:58:44,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837413299] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 00:58:44,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 00:58:44,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-03 00:58:44,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699537937] [2023-04-03 00:58:44,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 00:58:44,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-03 00:58:44,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 00:58:44,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-03 00:58:44,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-03 00:58:44,893 INFO L87 Difference]: Start difference. First operand 597 states and 707 transitions. Second operand has 6 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2023-04-03 00:58:45,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 00:58:45,036 INFO L93 Difference]: Finished difference Result 1692 states and 2077 transitions. [2023-04-03 00:58:45,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-03 00:58:45,037 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) Word has length 66 [2023-04-03 00:58:45,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 00:58:45,042 INFO L225 Difference]: With dead ends: 1692 [2023-04-03 00:58:45,042 INFO L226 Difference]: Without dead ends: 1117 [2023-04-03 00:58:45,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-04-03 00:58:45,044 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 62 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-03 00:58:45,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 365 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-03 00:58:45,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1117 states. [2023-04-03 00:58:45,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1117 to 1065. [2023-04-03 00:58:45,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1065 states, 650 states have (on average 1.2323076923076923) internal successors, (801), 690 states have internal predecessors, (801), 207 states have call successors, (207), 207 states have call predecessors, (207), 207 states have return successors, (261), 203 states have call predecessors, (261), 203 states have call successors, (261) [2023-04-03 00:58:45,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1065 states to 1065 states and 1269 transitions. [2023-04-03 00:58:45,154 INFO L78 Accepts]: Start accepts. Automaton has 1065 states and 1269 transitions. Word has length 66 [2023-04-03 00:58:45,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 00:58:45,156 INFO L495 AbstractCegarLoop]: Abstraction has 1065 states and 1269 transitions. [2023-04-03 00:58:45,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2023-04-03 00:58:45,156 INFO L276 IsEmpty]: Start isEmpty. Operand 1065 states and 1269 transitions. [2023-04-03 00:58:45,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-04-03 00:58:45,160 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 00:58:45,160 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 00:58:45,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-03 00:58:45,162 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 00:58:45,162 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 00:58:45,163 INFO L85 PathProgramCache]: Analyzing trace with hash -705151196, now seen corresponding path program 1 times [2023-04-03 00:58:45,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 00:58:45,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546794616] [2023-04-03 00:58:45,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 00:58:45,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 00:58:45,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-03 00:58:45,176 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-03 00:58:45,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-03 00:58:45,215 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-04-03 00:58:45,215 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-03 00:58:45,216 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-03 00:58:45,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-03 00:58:45,220 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-04-03 00:58:45,223 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-03 00:58:45,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.04 12:58:45 BoogieIcfgContainer [2023-04-03 00:58:45,270 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-03 00:58:45,270 INFO L158 Benchmark]: Toolchain (without parser) took 4099.80ms. Allocated memory was 250.6MB in the beginning and 332.4MB in the end (delta: 81.8MB). Free memory was 210.8MB in the beginning and 252.6MB in the end (delta: -41.7MB). Peak memory consumption was 41.6MB. Max. memory is 8.0GB. [2023-04-03 00:58:45,270 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 208.7MB. Free memory is still 153.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-03 00:58:45,270 INFO L158 Benchmark]: CACSL2BoogieTranslator took 384.23ms. Allocated memory is still 250.6MB. Free memory was 210.4MB in the beginning and 192.4MB in the end (delta: 18.0MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-04-03 00:58:45,271 INFO L158 Benchmark]: Boogie Preprocessor took 63.27ms. Allocated memory is still 250.6MB. Free memory was 192.4MB in the beginning and 188.8MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-04-03 00:58:45,271 INFO L158 Benchmark]: RCFGBuilder took 708.22ms. Allocated memory is still 250.6MB. Free memory was 188.8MB in the beginning and 130.1MB in the end (delta: 58.7MB). Peak memory consumption was 58.7MB. Max. memory is 8.0GB. [2023-04-03 00:58:45,271 INFO L158 Benchmark]: TraceAbstraction took 2939.96ms. Allocated memory was 250.6MB in the beginning and 332.4MB in the end (delta: 81.8MB). Free memory was 129.5MB in the beginning and 252.6MB in the end (delta: -123.1MB). There was no memory consumed. Max. memory is 8.0GB. [2023-04-03 00:58:45,272 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 208.7MB. Free memory is still 153.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 384.23ms. Allocated memory is still 250.6MB. Free memory was 210.4MB in the beginning and 192.4MB in the end (delta: 18.0MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 63.27ms. Allocated memory is still 250.6MB. Free memory was 192.4MB in the beginning and 188.8MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 708.22ms. Allocated memory is still 250.6MB. Free memory was 188.8MB in the beginning and 130.1MB in the end (delta: 58.7MB). Peak memory consumption was 58.7MB. Max. memory is 8.0GB. * TraceAbstraction took 2939.96ms. Allocated memory was 250.6MB in the beginning and 332.4MB in the end (delta: 81.8MB). Free memory was 129.5MB in the beginning and 252.6MB in the end (delta: -123.1MB). 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 - CounterExampleResult [Line: 155]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L260] int pumpRunning = 0; [L261] int systemActive = 1; [L465] int cleanupTimeShifts = 4; [L730] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L538] int retValue_acc ; [L539] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L543] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L544] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L545] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L456] int retValue_acc ; [L459] retValue_acc = 1 [L460] return (retValue_acc); [L545] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L545] tmp = valid_product() [L547] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L549] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L550] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L532] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L191] int splverifierCounter ; [L192] int tmp ; [L193] int tmp___0 ; [L194] int tmp___1 ; [L195] int tmp___2 ; [L198] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L200] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L202] COND TRUE splverifierCounter < 4 [L208] tmp = __VERIFIER_nondet_int() [L210] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L212] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L75] COND TRUE waterLevel < 2 [L76] waterLevel = waterLevel + 1 [L212] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L218] tmp___0 = __VERIFIER_nondet_int() [L220] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L222] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L87] COND FALSE !(\read(methaneLevelCritical)) [L90] methaneLevelCritical = 1 [L222] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L228] tmp___2 = __VERIFIER_nondet_int() [L230] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L245] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L267] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L274] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L276] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L296] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L299] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L301] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L393] int retValue_acc ; [L394] int tmp ; [L395] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L399] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L137] int retValue_acc ; [L140] COND FALSE !(waterLevel < 2) [L144] retValue_acc = 0 [L145] return (retValue_acc); [L399] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L399] tmp = isHighWaterSensorDry() [L401] COND FALSE !(\read(tmp)) [L404] tmp___0 = 1 [L406] retValue_acc = tmp___0 [L407] return (retValue_acc); [L301] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L301] tmp = isHighWaterLevel() [L303] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L305] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L324] pumpRunning = 1 [L305] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L276] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L282] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L162] int tmp ; [L163] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L167] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); [L167] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L167] tmp = isMethaneLevelCritical() [L169] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L171] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L348] int retValue_acc ; [L351] retValue_acc = pumpRunning [L352] return (retValue_acc); [L171] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L171] tmp___0 = isPumpRunning() [L173] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L175] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L155] reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 175 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.8s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 611 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 592 mSDsluCounter, 1940 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1379 mSDsCounter, 182 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1168 IncrementalHoareTripleChecker+Invalid, 1350 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 182 mSolverCounterUnsat, 561 mSDtfsCounter, 1168 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1065occurred in iteration=6, InterpolantAutomatonStates: 47, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 6 MinimizatonAttempts, 131 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 380 NumberOfCodeBlocks, 380 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 305 ConstructedInterpolants, 0 QuantifiedInterpolants, 601 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 RESULT: Ultimate proved your program to be incorrect! [2023-04-03 00:58:45,300 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...