/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/product-lines/minepump_spec4_product43.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-03 01:06:06,957 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-03 01:06:06,958 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-03 01:06:06,989 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-03 01:06:06,990 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-03 01:06:06,992 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-03 01:06:06,995 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-03 01:06:06,997 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-03 01:06:06,998 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-03 01:06:07,002 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-03 01:06:07,004 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-03 01:06:07,005 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-03 01:06:07,005 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-03 01:06:07,008 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-03 01:06:07,009 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-03 01:06:07,010 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-03 01:06:07,011 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-03 01:06:07,012 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-03 01:06:07,013 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-03 01:06:07,018 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-03 01:06:07,019 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-03 01:06:07,019 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-03 01:06:07,020 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-03 01:06:07,021 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-03 01:06:07,023 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-03 01:06:07,023 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-03 01:06:07,023 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-03 01:06:07,024 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-03 01:06:07,028 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-03 01:06:07,030 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-03 01:06:07,030 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-03 01:06:07,030 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-03 01:06:07,032 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-03 01:06:07,032 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-03 01:06:07,033 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-03 01:06:07,033 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-03 01:06:07,033 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-03 01:06:07,034 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-03 01:06:07,034 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-03 01:06:07,034 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-03 01:06:07,035 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-03 01:06:07,036 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-03 01:06:07,076 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-03 01:06:07,076 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-03 01:06:07,077 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-03 01:06:07,077 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-03 01:06:07,078 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-03 01:06:07,078 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-03 01:06:07,078 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-03 01:06:07,078 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-03 01:06:07,078 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-03 01:06:07,078 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-03 01:06:07,079 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-03 01:06:07,079 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-03 01:06:07,079 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-03 01:06:07,079 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-03 01:06:07,079 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-03 01:06:07,079 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-03 01:06:07,080 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-03 01:06:07,080 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-03 01:06:07,080 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-03 01:06:07,080 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-03 01:06:07,080 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-03 01:06:07,081 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-03 01:06:07,081 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-03 01:06:07,081 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-03 01:06:07,081 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-03 01:06:07,081 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-03 01:06:07,081 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-03 01:06:07,081 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-03 01:06:07,082 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-03 01:06:07,082 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-03 01:06:07,082 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-03 01:06:07,082 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-03 01:06:07,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 01:06:07,082 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-03 01:06:07,082 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-03 01:06:07,083 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-03 01:06:07,083 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-03 01:06:07,083 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-03 01:06:07,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-03 01:06:07,083 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-03 01:06:07,083 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-03 01:06:07,083 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-03 01:06:07,311 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-03 01:06:07,336 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-03 01:06:07,339 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-03 01:06:07,340 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-03 01:06:07,340 INFO L275 PluginConnector]: CDTParser initialized [2023-04-03 01:06:07,341 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product43.cil.c [2023-04-03 01:06:08,520 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-03 01:06:08,735 INFO L351 CDTParser]: Found 1 translation units. [2023-04-03 01:06:08,735 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product43.cil.c [2023-04-03 01:06:08,746 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19e2cd891/dc26dd5bb55341868fde4e8d856480e0/FLAG27e69a734 [2023-04-03 01:06:08,757 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19e2cd891/dc26dd5bb55341868fde4e8d856480e0 [2023-04-03 01:06:08,759 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-03 01:06:08,760 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-03 01:06:08,761 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-03 01:06:08,761 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-03 01:06:08,764 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-03 01:06:08,765 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 01:06:08" (1/1) ... [2023-04-03 01:06:08,766 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4594a67c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:06:08, skipping insertion in model container [2023-04-03 01:06:08,766 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 01:06:08" (1/1) ... [2023-04-03 01:06:08,772 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-03 01:06:08,801 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-03 01:06:08,939 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product43.cil.c[5104,5117] [2023-04-03 01:06:09,008 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 01:06:09,022 INFO L203 MainTranslator]: Completed pre-run [2023-04-03 01:06:09,041 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product43.cil.c[5104,5117] [2023-04-03 01:06:09,073 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 01:06:09,087 INFO L208 MainTranslator]: Completed translation [2023-04-03 01:06:09,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:06:09 WrapperNode [2023-04-03 01:06:09,088 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-03 01:06:09,093 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-03 01:06:09,093 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-03 01:06:09,093 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-03 01:06:09,102 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:06:09" (1/1) ... [2023-04-03 01:06:09,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:06:09" (1/1) ... [2023-04-03 01:06:09,123 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:06:09" (1/1) ... [2023-04-03 01:06:09,123 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:06:09" (1/1) ... [2023-04-03 01:06:09,144 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:06:09" (1/1) ... [2023-04-03 01:06:09,152 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:06:09" (1/1) ... [2023-04-03 01:06:09,157 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:06:09" (1/1) ... [2023-04-03 01:06:09,159 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:06:09" (1/1) ... [2023-04-03 01:06:09,163 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-03 01:06:09,164 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-03 01:06:09,164 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-03 01:06:09,165 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-03 01:06:09,167 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:06:09" (1/1) ... [2023-04-03 01:06:09,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 01:06:09,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 01:06:09,200 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-03 01:06:09,217 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-03 01:06:09,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-03 01:06:09,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-03 01:06:09,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-03 01:06:09,248 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-03 01:06:09,248 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-03 01:06:09,248 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-03 01:06:09,248 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-04-03 01:06:09,248 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-03 01:06:09,248 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2023-04-03 01:06:09,248 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-03 01:06:09,248 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-03 01:06:09,249 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-03 01:06:09,249 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-03 01:06:09,249 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-03 01:06:09,249 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2023-04-03 01:06:09,249 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2023-04-03 01:06:09,249 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-03 01:06:09,249 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-03 01:06:09,249 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-03 01:06:09,249 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-03 01:06:09,250 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-03 01:06:09,250 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-03 01:06:09,250 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-03 01:06:09,250 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-03 01:06:09,250 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-03 01:06:09,250 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-03 01:06:09,250 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-03 01:06:09,250 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-03 01:06:09,250 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2023-04-03 01:06:09,250 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-03 01:06:09,251 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-03 01:06:09,251 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-03 01:06:09,251 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-03 01:06:09,251 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-03 01:06:09,251 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-03 01:06:09,251 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-03 01:06:09,251 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-03 01:06:09,251 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-03 01:06:09,251 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-03 01:06:09,251 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2023-04-03 01:06:09,252 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-03 01:06:09,252 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-03 01:06:09,252 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-03 01:06:09,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-03 01:06:09,253 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-03 01:06:09,253 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-03 01:06:09,254 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-03 01:06:09,254 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-03 01:06:09,254 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2023-04-03 01:06:09,254 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-03 01:06:09,254 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-03 01:06:09,254 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-03 01:06:09,255 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-03 01:06:09,255 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-03 01:06:09,255 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-03 01:06:09,255 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2023-04-03 01:06:09,256 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-03 01:06:09,256 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-03 01:06:09,256 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-03 01:06:09,256 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-03 01:06:09,256 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2023-04-03 01:06:09,256 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-03 01:06:09,257 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-04-03 01:06:09,257 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2023-04-03 01:06:09,257 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2023-04-03 01:06:09,257 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-03 01:06:09,257 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-03 01:06:09,257 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-03 01:06:09,260 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-03 01:06:09,260 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-03 01:06:09,260 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-03 01:06:09,260 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-03 01:06:09,260 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-03 01:06:09,260 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-03 01:06:09,260 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-03 01:06:09,261 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-03 01:06:09,261 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-03 01:06:09,261 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-03 01:06:09,261 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-03 01:06:09,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-03 01:06:09,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-03 01:06:09,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-03 01:06:09,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-03 01:06:09,261 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-03 01:06:09,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-03 01:06:09,261 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-03 01:06:09,262 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-03 01:06:09,262 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-03 01:06:09,262 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-03 01:06:09,262 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-03 01:06:09,262 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-03 01:06:09,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-03 01:06:09,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-03 01:06:09,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-03 01:06:09,381 INFO L236 CfgBuilder]: Building ICFG [2023-04-03 01:06:09,383 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-03 01:06:09,958 INFO L277 CfgBuilder]: Performing block encoding [2023-04-03 01:06:10,086 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-03 01:06:10,086 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-03 01:06:10,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 01:06:10 BoogieIcfgContainer [2023-04-03 01:06:10,089 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-03 01:06:10,092 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-03 01:06:10,092 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-03 01:06:10,094 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-03 01:06:10,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.04 01:06:08" (1/3) ... [2023-04-03 01:06:10,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ead4441 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 01:06:10, skipping insertion in model container [2023-04-03 01:06:10,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:06:09" (2/3) ... [2023-04-03 01:06:10,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ead4441 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 01:06:10, skipping insertion in model container [2023-04-03 01:06:10,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 01:06:10" (3/3) ... [2023-04-03 01:06:10,097 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product43.cil.c [2023-04-03 01:06:10,111 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-03 01:06:10,112 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-03 01:06:10,164 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-03 01:06:10,170 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;@6ffb9cf2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-03 01:06:10,170 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-03 01:06:10,174 INFO L276 IsEmpty]: Start isEmpty. Operand has 143 states, 66 states have (on average 1.2727272727272727) internal successors, (84), 79 states have internal predecessors, (84), 45 states have call successors, (45), 29 states have call predecessors, (45), 29 states have return successors, (45), 43 states have call predecessors, (45), 45 states have call successors, (45) [2023-04-03 01:06:10,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-04-03 01:06:10,181 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:06:10,182 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:06:10,182 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:06:10,186 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:06:10,186 INFO L85 PathProgramCache]: Analyzing trace with hash -777831275, now seen corresponding path program 1 times [2023-04-03 01:06:10,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:06:10,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245668821] [2023-04-03 01:06:10,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:06:10,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:06:10,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:06:10,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:06:10,430 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:06:10,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245668821] [2023-04-03 01:06:10,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245668821] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:06:10,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:06:10,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-03 01:06:10,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038656725] [2023-04-03 01:06:10,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:06:10,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-03 01:06:10,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:06:10,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-03 01:06:10,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-03 01:06:10,478 INFO L87 Difference]: Start difference. First operand has 143 states, 66 states have (on average 1.2727272727272727) internal successors, (84), 79 states have internal predecessors, (84), 45 states have call successors, (45), 29 states have call predecessors, (45), 29 states have return successors, (45), 43 states have call predecessors, (45), 45 states have call successors, (45) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-03 01:06:10,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:06:10,568 INFO L93 Difference]: Finished difference Result 219 states and 262 transitions. [2023-04-03 01:06:10,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-03 01:06:10,570 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 42 [2023-04-03 01:06:10,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:06:10,579 INFO L225 Difference]: With dead ends: 219 [2023-04-03 01:06:10,579 INFO L226 Difference]: Without dead ends: 110 [2023-04-03 01:06:10,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-03 01:06:10,587 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-03 01:06:10,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 119 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-03 01:06:10,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2023-04-03 01:06:10,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2023-04-03 01:06:10,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 57 states have (on average 1.2280701754385965) internal successors, (70), 67 states have internal predecessors, (70), 30 states have call successors, (30), 27 states have call predecessors, (30), 22 states have return successors, (25), 23 states have call predecessors, (25), 25 states have call successors, (25) [2023-04-03 01:06:10,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 125 transitions. [2023-04-03 01:06:10,650 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 125 transitions. Word has length 42 [2023-04-03 01:06:10,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:06:10,651 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 125 transitions. [2023-04-03 01:06:10,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-03 01:06:10,652 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 125 transitions. [2023-04-03 01:06:10,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-04-03 01:06:10,655 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:06:10,655 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:06:10,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-03 01:06:10,656 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:06:10,657 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:06:10,657 INFO L85 PathProgramCache]: Analyzing trace with hash 8104898, now seen corresponding path program 1 times [2023-04-03 01:06:10,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:06:10,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057129347] [2023-04-03 01:06:10,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:06:10,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:06:10,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:06:10,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:06:10,816 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:06:10,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057129347] [2023-04-03 01:06:10,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057129347] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:06:10,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:06:10,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 01:06:10,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495140940] [2023-04-03 01:06:10,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:06:10,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 01:06:10,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:06:10,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 01:06:10,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 01:06:10,820 INFO L87 Difference]: Start difference. First operand 110 states and 125 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-03 01:06:10,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:06:10,874 INFO L93 Difference]: Finished difference Result 168 states and 189 transitions. [2023-04-03 01:06:10,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 01:06:10,875 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 43 [2023-04-03 01:06:10,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:06:10,876 INFO L225 Difference]: With dead ends: 168 [2023-04-03 01:06:10,876 INFO L226 Difference]: Without dead ends: 102 [2023-04-03 01:06:10,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 01:06:10,878 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 11 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-03 01:06:10,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 182 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-03 01:06:10,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2023-04-03 01:06:10,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2023-04-03 01:06:10,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 52 states have (on average 1.2307692307692308) internal successors, (64), 62 states have internal predecessors, (64), 27 states have call successors, (27), 26 states have call predecessors, (27), 22 states have return successors, (23), 21 states have call predecessors, (23), 23 states have call successors, (23) [2023-04-03 01:06:10,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 114 transitions. [2023-04-03 01:06:10,888 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 114 transitions. Word has length 43 [2023-04-03 01:06:10,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:06:10,888 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 114 transitions. [2023-04-03 01:06:10,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-03 01:06:10,888 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 114 transitions. [2023-04-03 01:06:10,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-04-03 01:06:10,893 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:06:10,893 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:06:10,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-03 01:06:10,894 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:06:10,894 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:06:10,894 INFO L85 PathProgramCache]: Analyzing trace with hash 935582663, now seen corresponding path program 1 times [2023-04-03 01:06:10,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:06:10,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143985795] [2023-04-03 01:06:10,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:06:10,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:06:10,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:06:11,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:06:11,073 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:06:11,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143985795] [2023-04-03 01:06:11,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143985795] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:06:11,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:06:11,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-03 01:06:11,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090473544] [2023-04-03 01:06:11,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:06:11,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-03 01:06:11,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:06:11,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-03 01:06:11,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-04-03 01:06:11,076 INFO L87 Difference]: Start difference. First operand 102 states and 114 transitions. Second operand has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 4 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-04-03 01:06:11,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:06:11,341 INFO L93 Difference]: Finished difference Result 306 states and 355 transitions. [2023-04-03 01:06:11,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 01:06:11,341 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 4 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 46 [2023-04-03 01:06:11,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:06:11,351 INFO L225 Difference]: With dead ends: 306 [2023-04-03 01:06:11,351 INFO L226 Difference]: Without dead ends: 226 [2023-04-03 01:06:11,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-04-03 01:06:11,357 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 181 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-03 01:06:11,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 484 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-03 01:06:11,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2023-04-03 01:06:11,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 208. [2023-04-03 01:06:11,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 113 states have (on average 1.2566371681415929) internal successors, (142), 131 states have internal predecessors, (142), 50 states have call successors, (50), 48 states have call predecessors, (50), 44 states have return successors, (47), 42 states have call predecessors, (47), 46 states have call successors, (47) [2023-04-03 01:06:11,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 239 transitions. [2023-04-03 01:06:11,388 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 239 transitions. Word has length 46 [2023-04-03 01:06:11,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:06:11,389 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 239 transitions. [2023-04-03 01:06:11,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 4 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-04-03 01:06:11,389 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 239 transitions. [2023-04-03 01:06:11,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-04-03 01:06:11,390 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:06:11,391 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 01:06:11,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-03 01:06:11,391 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:06:11,391 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:06:11,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1260064200, now seen corresponding path program 1 times [2023-04-03 01:06:11,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:06:11,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585832248] [2023-04-03 01:06:11,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:06:11,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:06:11,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:06:11,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:06:11,581 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:06:11,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585832248] [2023-04-03 01:06:11,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585832248] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:06:11,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:06:11,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-03 01:06:11,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033242086] [2023-04-03 01:06:11,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:06:11,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-03 01:06:11,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:06:11,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-03 01:06:11,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-04-03 01:06:11,584 INFO L87 Difference]: Start difference. First operand 208 states and 239 transitions. Second operand has 10 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 4 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2023-04-03 01:06:11,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:06:11,930 INFO L93 Difference]: Finished difference Result 727 states and 878 transitions. [2023-04-03 01:06:11,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-04-03 01:06:11,930 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 4 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 51 [2023-04-03 01:06:11,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:06:11,934 INFO L225 Difference]: With dead ends: 727 [2023-04-03 01:06:11,934 INFO L226 Difference]: Without dead ends: 541 [2023-04-03 01:06:11,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2023-04-03 01:06:11,936 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 157 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-03 01:06:11,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 694 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-03 01:06:11,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2023-04-03 01:06:11,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 517. [2023-04-03 01:06:11,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 292 states have (on average 1.2568493150684932) internal successors, (367), 335 states have internal predecessors, (367), 117 states have call successors, (117), 111 states have call predecessors, (117), 107 states have return successors, (124), 101 states have call predecessors, (124), 113 states have call successors, (124) [2023-04-03 01:06:11,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 608 transitions. [2023-04-03 01:06:12,000 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 608 transitions. Word has length 51 [2023-04-03 01:06:12,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:06:12,001 INFO L495 AbstractCegarLoop]: Abstraction has 517 states and 608 transitions. [2023-04-03 01:06:12,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 4 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2023-04-03 01:06:12,001 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 608 transitions. [2023-04-03 01:06:12,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-04-03 01:06:12,008 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:06:12,008 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:06:12,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-03 01:06:12,008 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:06:12,009 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:06:12,009 INFO L85 PathProgramCache]: Analyzing trace with hash 141279892, now seen corresponding path program 1 times [2023-04-03 01:06:12,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:06:12,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052318179] [2023-04-03 01:06:12,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:06:12,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:06:12,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:06:12,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:06:12,109 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:06:12,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052318179] [2023-04-03 01:06:12,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052318179] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:06:12,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:06:12,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-03 01:06:12,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816924938] [2023-04-03 01:06:12,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:06:12,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-03 01:06:12,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:06:12,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-03 01:06:12,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-03 01:06:12,111 INFO L87 Difference]: Start difference. First operand 517 states and 608 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 3 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-03 01:06:12,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:06:12,369 INFO L93 Difference]: Finished difference Result 1331 states and 1702 transitions. [2023-04-03 01:06:12,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-03 01:06:12,370 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 3 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 54 [2023-04-03 01:06:12,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:06:12,381 INFO L225 Difference]: With dead ends: 1331 [2023-04-03 01:06:12,381 INFO L226 Difference]: Without dead ends: 836 [2023-04-03 01:06:12,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-03 01:06:12,385 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 137 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-03 01:06:12,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 106 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-03 01:06:12,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2023-04-03 01:06:12,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 734. [2023-04-03 01:06:12,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 734 states, 427 states have (on average 1.224824355971897) internal successors, (523), 467 states have internal predecessors, (523), 149 states have call successors, (149), 147 states have call predecessors, (149), 157 states have return successors, (196), 148 states have call predecessors, (196), 145 states have call successors, (196) [2023-04-03 01:06:12,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 868 transitions. [2023-04-03 01:06:12,480 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 868 transitions. Word has length 54 [2023-04-03 01:06:12,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:06:12,480 INFO L495 AbstractCegarLoop]: Abstraction has 734 states and 868 transitions. [2023-04-03 01:06:12,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 3 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-03 01:06:12,481 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 868 transitions. [2023-04-03 01:06:12,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-04-03 01:06:12,483 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:06:12,483 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:06:12,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-03 01:06:12,483 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:06:12,484 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:06:12,484 INFO L85 PathProgramCache]: Analyzing trace with hash -94197372, now seen corresponding path program 1 times [2023-04-03 01:06:12,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:06:12,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391711979] [2023-04-03 01:06:12,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:06:12,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:06:12,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:06:12,652 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-04-03 01:06:12,652 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:06:12,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391711979] [2023-04-03 01:06:12,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391711979] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 01:06:12,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [436038629] [2023-04-03 01:06:12,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:06:12,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:06:12,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 01:06:12,656 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 01:06:12,674 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-03 01:06:12,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:06:12,797 INFO L262 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 51 conjunts are in the unsatisfiable core [2023-04-03 01:06:12,803 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 01:06:13,089 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-04-03 01:06:13,090 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-03 01:06:13,651 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-03 01:06:13,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [436038629] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-03 01:06:13,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1835718984] [2023-04-03 01:06:13,669 INFO L159 IcfgInterpreter]: Started Sifa with 59 locations of interest [2023-04-03 01:06:13,669 INFO L166 IcfgInterpreter]: Building call graph [2023-04-03 01:06:13,672 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-03 01:06:13,676 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-03 01:06:13,677 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-03 01:06:13,857 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 28 for LOIs [2023-04-03 01:06:13,896 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 32 for LOIs [2023-04-03 01:06:14,091 INFO L197 IcfgInterpreter]: Interpreting procedure runTest with input of size 32 for LOIs [2023-04-03 01:06:14,109 INFO L197 IcfgInterpreter]: Interpreting procedure setup with input of size 24 for LOIs [2023-04-03 01:06:14,112 INFO L197 IcfgInterpreter]: Interpreting procedure select_features with input of size 24 for LOIs [2023-04-03 01:06:14,116 INFO L197 IcfgInterpreter]: Interpreting procedure test with input of size 32 for LOIs [2023-04-03 01:06:17,832 INFO L197 IcfgInterpreter]: Interpreting procedure stopSystem with input of size 40 for LOIs [2023-04-03 01:06:17,851 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 46 for LOIs [2023-04-03 01:06:17,861 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 31 for LOIs [2023-04-03 01:06:17,981 INFO L197 IcfgInterpreter]: Interpreting procedure __utac_acc__Specification4_spec__1 with input of size 22 for LOIs [2023-04-03 01:06:18,019 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 24 for LOIs [2023-04-03 01:06:18,022 INFO L197 IcfgInterpreter]: Interpreting procedure getWaterLevel with input of size 22 for LOIs [2023-04-03 01:06:18,024 INFO L197 IcfgInterpreter]: Interpreting procedure valid_product with input of size 24 for LOIs [2023-04-03 01:06:18,026 INFO L197 IcfgInterpreter]: Interpreting procedure select_helpers with input of size 24 for LOIs [2023-04-03 01:06:18,028 INFO L180 IcfgInterpreter]: Interpretation finished [2023-04-03 01:06:20,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1835718984] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:06:20,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-04-03 01:06:20,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [7, 14, 12] total 61 [2023-04-03 01:06:20,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515030748] [2023-04-03 01:06:20,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:06:20,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-04-03 01:06:20,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:06:20,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-04-03 01:06:20,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=387, Invalid=3273, Unknown=0, NotChecked=0, Total=3660 [2023-04-03 01:06:20,616 INFO L87 Difference]: Start difference. First operand 734 states and 868 transitions. Second operand has 35 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 27 states have internal predecessors, (34), 11 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (11), 10 states have call predecessors, (11), 9 states have call successors, (11) [2023-04-03 01:06:32,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:06:32,273 INFO L93 Difference]: Finished difference Result 1562 states and 1932 transitions. [2023-04-03 01:06:32,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2023-04-03 01:06:32,274 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 27 states have internal predecessors, (34), 11 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (11), 10 states have call predecessors, (11), 9 states have call successors, (11) Word has length 78 [2023-04-03 01:06:32,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:06:32,282 INFO L225 Difference]: With dead ends: 1562 [2023-04-03 01:06:32,282 INFO L226 Difference]: Without dead ends: 1145 [2023-04-03 01:06:32,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 186 SyntacticMatches, 2 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3935 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=1887, Invalid=11919, Unknown=0, NotChecked=0, Total=13806 [2023-04-03 01:06:32,292 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 876 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 3801 mSolverCounterSat, 591 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 885 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 4392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 591 IncrementalHoareTripleChecker+Valid, 3801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-04-03 01:06:32,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [885 Valid, 260 Invalid, 4392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [591 Valid, 3801 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-04-03 01:06:32,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1145 states. [2023-04-03 01:06:32,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1145 to 991. [2023-04-03 01:06:32,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 991 states, 586 states have (on average 1.2184300341296928) internal successors, (714), 636 states have internal predecessors, (714), 198 states have call successors, (198), 194 states have call predecessors, (198), 206 states have return successors, (256), 196 states have call predecessors, (256), 194 states have call successors, (256) [2023-04-03 01:06:32,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1168 transitions. [2023-04-03 01:06:32,426 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1168 transitions. Word has length 78 [2023-04-03 01:06:32,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:06:32,427 INFO L495 AbstractCegarLoop]: Abstraction has 991 states and 1168 transitions. [2023-04-03 01:06:32,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 27 states have internal predecessors, (34), 11 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (11), 10 states have call predecessors, (11), 9 states have call successors, (11) [2023-04-03 01:06:32,427 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1168 transitions. [2023-04-03 01:06:32,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-04-03 01:06:32,430 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:06:32,430 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:06:32,439 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-03 01:06:32,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-04-03 01:06:32,636 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:06:32,637 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:06:32,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1060964765, now seen corresponding path program 1 times [2023-04-03 01:06:32,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:06:32,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932533186] [2023-04-03 01:06:32,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:06:32,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:06:32,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:06:32,813 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-04-03 01:06:32,813 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:06:32,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932533186] [2023-04-03 01:06:32,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932533186] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 01:06:32,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378095493] [2023-04-03 01:06:32,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:06:32,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:06:32,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 01:06:32,815 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 01:06:32,843 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-03 01:06:32,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:06:32,928 INFO L262 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 51 conjunts are in the unsatisfiable core [2023-04-03 01:06:32,933 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 01:06:33,150 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-04-03 01:06:33,151 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-03 01:06:33,571 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-03 01:06:33,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1378095493] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-03 01:06:33,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1333229701] [2023-04-03 01:06:33,574 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2023-04-03 01:06:33,574 INFO L166 IcfgInterpreter]: Building call graph [2023-04-03 01:06:33,575 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-03 01:06:33,575 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-03 01:06:33,575 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-03 01:06:33,670 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 28 for LOIs [2023-04-03 01:06:33,692 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 32 for LOIs [2023-04-03 01:06:33,788 INFO L197 IcfgInterpreter]: Interpreting procedure runTest with input of size 32 for LOIs [2023-04-03 01:06:33,799 INFO L197 IcfgInterpreter]: Interpreting procedure setup with input of size 24 for LOIs [2023-04-03 01:06:33,801 INFO L197 IcfgInterpreter]: Interpreting procedure select_features with input of size 24 for LOIs [2023-04-03 01:06:33,802 INFO L197 IcfgInterpreter]: Interpreting procedure test with input of size 32 for LOIs [2023-04-03 01:06:38,962 INFO L197 IcfgInterpreter]: Interpreting procedure stopSystem with input of size 56 for LOIs [2023-04-03 01:06:38,991 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 66 for LOIs [2023-04-03 01:06:39,002 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 43 for LOIs [2023-04-03 01:06:39,083 INFO L197 IcfgInterpreter]: Interpreting procedure __utac_acc__Specification4_spec__1 with input of size 26 for LOIs [2023-04-03 01:06:39,115 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 28 for LOIs [2023-04-03 01:06:39,117 INFO L197 IcfgInterpreter]: Interpreting procedure getWaterLevel with input of size 26 for LOIs [2023-04-03 01:06:39,119 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 39 for LOIs [2023-04-03 01:06:39,125 INFO L197 IcfgInterpreter]: Interpreting procedure valid_product with input of size 24 for LOIs [2023-04-03 01:06:39,126 INFO L197 IcfgInterpreter]: Interpreting procedure select_helpers with input of size 24 for LOIs [2023-04-03 01:06:39,128 INFO L180 IcfgInterpreter]: Interpretation finished [2023-04-03 01:06:43,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1333229701] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:06:43,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-04-03 01:06:43,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [37] imperfect sequences [7, 14, 12] total 64 [2023-04-03 01:06:43,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391502932] [2023-04-03 01:06:43,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:06:43,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-04-03 01:06:43,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:06:43,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-04-03 01:06:43,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=396, Invalid=3636, Unknown=0, NotChecked=0, Total=4032 [2023-04-03 01:06:43,300 INFO L87 Difference]: Start difference. First operand 991 states and 1168 transitions. Second operand has 38 states, 25 states have (on average 1.44) internal successors, (36), 29 states have internal predecessors, (36), 12 states have call successors, (16), 10 states have call predecessors, (16), 10 states have return successors, (12), 11 states have call predecessors, (12), 10 states have call successors, (12) [2023-04-03 01:07:26,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:07:26,960 INFO L93 Difference]: Finished difference Result 3665 states and 5445 transitions. [2023-04-03 01:07:26,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 225 states. [2023-04-03 01:07:26,961 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 25 states have (on average 1.44) internal successors, (36), 29 states have internal predecessors, (36), 12 states have call successors, (16), 10 states have call predecessors, (16), 10 states have return successors, (12), 11 states have call predecessors, (12), 10 states have call successors, (12) Word has length 81 [2023-04-03 01:07:26,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:07:26,968 INFO L225 Difference]: With dead ends: 3665 [2023-04-03 01:07:26,968 INFO L226 Difference]: Without dead ends: 1266 [2023-04-03 01:07:26,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 476 GetRequests, 191 SyntacticMatches, 3 SemanticMatches, 282 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30665 ImplicationChecksByTransitivity, 38.7s TimeCoverageRelationStatistics Valid=7413, Invalid=72959, Unknown=0, NotChecked=0, Total=80372 [2023-04-03 01:07:26,989 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 2622 mSDsluCounter, 2000 mSDsCounter, 0 mSdLazyCounter, 13708 mSolverCounterSat, 1956 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2631 SdHoareTripleChecker+Valid, 2242 SdHoareTripleChecker+Invalid, 15664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1956 IncrementalHoareTripleChecker+Valid, 13708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2023-04-03 01:07:26,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2631 Valid, 2242 Invalid, 15664 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1956 Valid, 13708 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2023-04-03 01:07:26,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1266 states. [2023-04-03 01:07:27,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1266 to 916. [2023-04-03 01:07:27,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 916 states, 533 states have (on average 1.2120075046904315) internal successors, (646), 581 states have internal predecessors, (646), 187 states have call successors, (187), 183 states have call predecessors, (187), 195 states have return successors, (245), 185 states have call predecessors, (245), 183 states have call successors, (245) [2023-04-03 01:07:27,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1078 transitions. [2023-04-03 01:07:27,114 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1078 transitions. Word has length 81 [2023-04-03 01:07:27,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:07:27,114 INFO L495 AbstractCegarLoop]: Abstraction has 916 states and 1078 transitions. [2023-04-03 01:07:27,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 25 states have (on average 1.44) internal successors, (36), 29 states have internal predecessors, (36), 12 states have call successors, (16), 10 states have call predecessors, (16), 10 states have return successors, (12), 11 states have call predecessors, (12), 10 states have call successors, (12) [2023-04-03 01:07:27,114 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1078 transitions. [2023-04-03 01:07:27,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-04-03 01:07:27,116 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:07:27,117 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:07:27,123 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-03 01:07:27,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-04-03 01:07:27,323 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:07:27,323 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:07:27,323 INFO L85 PathProgramCache]: Analyzing trace with hash 230230363, now seen corresponding path program 1 times [2023-04-03 01:07:27,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:07:27,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559200196] [2023-04-03 01:07:27,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:27,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:07:27,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:27,545 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-04-03 01:07:27,545 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:07:27,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559200196] [2023-04-03 01:07:27,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559200196] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 01:07:27,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089428293] [2023-04-03 01:07:27,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:27,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:07:27,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 01:07:27,547 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 01:07:27,550 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-03 01:07:27,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:27,665 INFO L262 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 51 conjunts are in the unsatisfiable core [2023-04-03 01:07:27,669 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 01:07:27,901 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 20 proven. 10 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-04-03 01:07:27,901 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-03 01:07:28,338 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 5 proven. 15 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-04-03 01:07:28,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1089428293] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-03 01:07:28,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1588010936] [2023-04-03 01:07:28,341 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2023-04-03 01:07:28,342 INFO L166 IcfgInterpreter]: Building call graph [2023-04-03 01:07:28,342 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-03 01:07:28,342 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-03 01:07:28,342 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-03 01:07:28,432 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 28 for LOIs [2023-04-03 01:07:28,448 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 32 for LOIs [2023-04-03 01:07:28,528 INFO L197 IcfgInterpreter]: Interpreting procedure runTest with input of size 32 for LOIs [2023-04-03 01:07:28,537 INFO L197 IcfgInterpreter]: Interpreting procedure setup with input of size 24 for LOIs [2023-04-03 01:07:28,538 INFO L197 IcfgInterpreter]: Interpreting procedure select_features with input of size 24 for LOIs [2023-04-03 01:07:28,539 INFO L197 IcfgInterpreter]: Interpreting procedure test with input of size 32 for LOIs [2023-04-03 01:07:29,847 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 35 for LOIs [2023-04-03 01:07:29,852 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 37 for LOIs [2023-04-03 01:07:29,983 INFO L197 IcfgInterpreter]: Interpreting procedure __utac_acc__Specification4_spec__1 with input of size 22 for LOIs [2023-04-03 01:07:30,009 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 24 for LOIs [2023-04-03 01:07:30,037 INFO L197 IcfgInterpreter]: Interpreting procedure getWaterLevel with input of size 22 for LOIs [2023-04-03 01:07:30,039 INFO L197 IcfgInterpreter]: Interpreting procedure valid_product with input of size 24 for LOIs [2023-04-03 01:07:30,041 INFO L197 IcfgInterpreter]: Interpreting procedure select_helpers with input of size 24 for LOIs [2023-04-03 01:07:30,042 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment with input of size 34 for LOIs [2023-04-03 01:07:30,087 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterLevel with input of size 32 for LOIs [2023-04-03 01:07:30,156 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterSensorDry with input of size 32 for LOIs [2023-04-03 01:07:30,162 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 22 for LOIs [2023-04-03 01:07:30,163 INFO L180 IcfgInterpreter]: Interpretation finished [2023-04-03 01:07:32,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1588010936] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:07:32,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-04-03 01:07:32,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [7, 14, 12] total 63 [2023-04-03 01:07:32,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101940668] [2023-04-03 01:07:32,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:07:32,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-04-03 01:07:32,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:07:32,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-04-03 01:07:32,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=419, Invalid=3487, Unknown=0, NotChecked=0, Total=3906 [2023-04-03 01:07:32,239 INFO L87 Difference]: Start difference. First operand 916 states and 1078 transitions. Second operand has 37 states, 26 states have (on average 1.5) internal successors, (39), 28 states have internal predecessors, (39), 12 states have call successors, (18), 9 states have call predecessors, (18), 12 states have return successors, (14), 13 states have call predecessors, (14), 10 states have call successors, (14) [2023-04-03 01:07:42,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:07:42,695 INFO L93 Difference]: Finished difference Result 1495 states and 1784 transitions. [2023-04-03 01:07:42,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-04-03 01:07:42,697 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 26 states have (on average 1.5) internal successors, (39), 28 states have internal predecessors, (39), 12 states have call successors, (18), 9 states have call predecessors, (18), 12 states have return successors, (14), 13 states have call predecessors, (14), 10 states have call successors, (14) Word has length 107 [2023-04-03 01:07:42,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:07:42,702 INFO L225 Difference]: With dead ends: 1495 [2023-04-03 01:07:42,702 INFO L226 Difference]: Without dead ends: 1145 [2023-04-03 01:07:42,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2695 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=1482, Invalid=9024, Unknown=0, NotChecked=0, Total=10506 [2023-04-03 01:07:42,705 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 357 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 3557 mSolverCounterSat, 253 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 3810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 253 IncrementalHoareTripleChecker+Valid, 3557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-04-03 01:07:42,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 255 Invalid, 3810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [253 Valid, 3557 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-04-03 01:07:42,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1145 states. [2023-04-03 01:07:42,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1145 to 1078. [2023-04-03 01:07:42,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1078 states, 631 states have (on average 1.202852614896989) internal successors, (759), 684 states have internal predecessors, (759), 219 states have call successors, (219), 215 states have call predecessors, (219), 227 states have return successors, (286), 214 states have call predecessors, (286), 215 states have call successors, (286) [2023-04-03 01:07:42,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 1264 transitions. [2023-04-03 01:07:42,884 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 1264 transitions. Word has length 107 [2023-04-03 01:07:42,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:07:42,884 INFO L495 AbstractCegarLoop]: Abstraction has 1078 states and 1264 transitions. [2023-04-03 01:07:42,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 26 states have (on average 1.5) internal successors, (39), 28 states have internal predecessors, (39), 12 states have call successors, (18), 9 states have call predecessors, (18), 12 states have return successors, (14), 13 states have call predecessors, (14), 10 states have call successors, (14) [2023-04-03 01:07:42,885 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 1264 transitions. [2023-04-03 01:07:42,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-04-03 01:07:42,887 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:07:42,887 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:07:42,895 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-04-03 01:07:43,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:07:43,096 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:07:43,096 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:07:43,096 INFO L85 PathProgramCache]: Analyzing trace with hash -496122707, now seen corresponding path program 1 times [2023-04-03 01:07:43,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:07:43,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485060342] [2023-04-03 01:07:43,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:43,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:07:43,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:43,573 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-04-03 01:07:43,573 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:07:43,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485060342] [2023-04-03 01:07:43,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485060342] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 01:07:43,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [108327725] [2023-04-03 01:07:43,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:43,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:07:43,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 01:07:43,574 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 01:07:43,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-04-03 01:07:43,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:43,701 INFO L262 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 56 conjunts are in the unsatisfiable core [2023-04-03 01:07:43,705 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 01:07:43,939 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 8 proven. 10 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-04-03 01:07:43,939 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-03 01:07:44,768 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-03 01:07:44,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [108327725] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-03 01:07:44,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [949141769] [2023-04-03 01:07:44,771 INFO L159 IcfgInterpreter]: Started Sifa with 90 locations of interest [2023-04-03 01:07:44,771 INFO L166 IcfgInterpreter]: Building call graph [2023-04-03 01:07:44,771 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-03 01:07:44,771 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-03 01:07:44,771 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-03 01:07:44,847 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 28 for LOIs [2023-04-03 01:07:44,870 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 32 for LOIs [2023-04-03 01:07:44,979 INFO L197 IcfgInterpreter]: Interpreting procedure runTest with input of size 32 for LOIs [2023-04-03 01:07:44,987 INFO L197 IcfgInterpreter]: Interpreting procedure setup with input of size 24 for LOIs [2023-04-03 01:07:44,989 INFO L197 IcfgInterpreter]: Interpreting procedure select_features with input of size 24 for LOIs [2023-04-03 01:07:44,991 INFO L197 IcfgInterpreter]: Interpreting procedure test with input of size 32 for LOIs [2023-04-03 01:07:46,343 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 33 for LOIs [2023-04-03 01:07:46,347 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 26 for LOIs [2023-04-03 01:07:46,486 INFO L197 IcfgInterpreter]: Interpreting procedure __utac_acc__Specification4_spec__1 with input of size 20 for LOIs [2023-04-03 01:07:46,527 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 22 for LOIs [2023-04-03 01:07:46,529 INFO L197 IcfgInterpreter]: Interpreting procedure __automaton_fail with input of size 30 for LOIs [2023-04-03 01:07:46,531 INFO L197 IcfgInterpreter]: Interpreting procedure getWaterLevel with input of size 20 for LOIs [2023-04-03 01:07:46,532 INFO L197 IcfgInterpreter]: Interpreting procedure lowerWaterLevel with input of size 26 for LOIs [2023-04-03 01:07:46,536 INFO L197 IcfgInterpreter]: Interpreting procedure valid_product with input of size 24 for LOIs [2023-04-03 01:07:46,538 INFO L197 IcfgInterpreter]: Interpreting procedure select_helpers with input of size 24 for LOIs [2023-04-03 01:07:46,539 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment with input of size 29 for LOIs [2023-04-03 01:07:46,669 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterLevel with input of size 22 for LOIs [2023-04-03 01:07:46,711 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterSensorDry with input of size 22 for LOIs [2023-04-03 01:07:46,715 INFO L197 IcfgInterpreter]: Interpreting procedure activatePump with input of size 34 for LOIs [2023-04-03 01:07:46,763 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 32 for LOIs [2023-04-03 01:07:46,782 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 32 for LOIs [2023-04-03 01:07:46,786 INFO L197 IcfgInterpreter]: Interpreting procedure activatePump__wrappee__highWaterSensor with input of size 24 for LOIs [2023-04-03 01:07:46,788 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 23 for LOIs [2023-04-03 01:07:46,789 INFO L180 IcfgInterpreter]: Interpretation finished [2023-04-03 01:07:49,852 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '23536#(and (<= 1 |#StackHeapBarrier|) (not (= ~pumpRunning~0 0)) (<= ~pumpRunning~0 2147483647) (= ~methaneLevelCritical~0 0) (= ~head~0.offset 0) (= 1 ~systemActive~0) (= ~head~0.base 0) (<= 0 (+ ~pumpRunning~0 2147483648)) (= |#NULL.offset| 0) (= ~waterLevel~0 0) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2023-04-03 01:07:49,853 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-04-03 01:07:49,853 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-03 01:07:49,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15, 21] total 39 [2023-04-03 01:07:49,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838796718] [2023-04-03 01:07:49,853 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-03 01:07:49,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-04-03 01:07:49,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:07:49,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-04-03 01:07:49,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=764, Invalid=7246, Unknown=0, NotChecked=0, Total=8010 [2023-04-03 01:07:49,856 INFO L87 Difference]: Start difference. First operand 1078 states and 1264 transitions. Second operand has 39 states, 26 states have (on average 4.5) internal successors, (117), 31 states have internal predecessors, (117), 12 states have call successors, (56), 14 states have call predecessors, (56), 21 states have return successors, (49), 18 states have call predecessors, (49), 12 states have call successors, (49) [2023-04-03 01:07:55,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:07:55,638 INFO L93 Difference]: Finished difference Result 5837 states and 9151 transitions. [2023-04-03 01:07:55,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2023-04-03 01:07:55,639 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 26 states have (on average 4.5) internal successors, (117), 31 states have internal predecessors, (117), 12 states have call successors, (56), 14 states have call predecessors, (56), 21 states have return successors, (49), 18 states have call predecessors, (49), 12 states have call successors, (49) Word has length 114 [2023-04-03 01:07:55,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:07:55,669 INFO L225 Difference]: With dead ends: 5837 [2023-04-03 01:07:55,670 INFO L226 Difference]: Without dead ends: 5475 [2023-04-03 01:07:55,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 467 GetRequests, 273 SyntacticMatches, 13 SemanticMatches, 181 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13969 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=3493, Invalid=29813, Unknown=0, NotChecked=0, Total=33306 [2023-04-03 01:07:55,679 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 2552 mSDsluCounter, 1875 mSDsCounter, 0 mSdLazyCounter, 4433 mSolverCounterSat, 1874 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2590 SdHoareTripleChecker+Valid, 2001 SdHoareTripleChecker+Invalid, 6307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1874 IncrementalHoareTripleChecker+Valid, 4433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-04-03 01:07:55,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2590 Valid, 2001 Invalid, 6307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1874 Valid, 4433 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-04-03 01:07:55,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5475 states. [2023-04-03 01:07:56,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5475 to 3069. [2023-04-03 01:07:56,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3069 states, 1774 states have (on average 1.2170236753100339) internal successors, (2159), 1923 states have internal predecessors, (2159), 636 states have call successors, (636), 602 states have call predecessors, (636), 658 states have return successors, (942), 639 states have call predecessors, (942), 632 states have call successors, (942) [2023-04-03 01:07:56,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3069 states to 3069 states and 3737 transitions. [2023-04-03 01:07:56,140 INFO L78 Accepts]: Start accepts. Automaton has 3069 states and 3737 transitions. Word has length 114 [2023-04-03 01:07:56,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:07:56,141 INFO L495 AbstractCegarLoop]: Abstraction has 3069 states and 3737 transitions. [2023-04-03 01:07:56,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 26 states have (on average 4.5) internal successors, (117), 31 states have internal predecessors, (117), 12 states have call successors, (56), 14 states have call predecessors, (56), 21 states have return successors, (49), 18 states have call predecessors, (49), 12 states have call successors, (49) [2023-04-03 01:07:56,141 INFO L276 IsEmpty]: Start isEmpty. Operand 3069 states and 3737 transitions. [2023-04-03 01:07:56,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-04-03 01:07:56,143 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:07:56,143 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:07:56,155 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-04-03 01:07:56,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:07:56,356 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:07:56,356 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:07:56,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1752333191, now seen corresponding path program 1 times [2023-04-03 01:07:56,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:07:56,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040407434] [2023-04-03 01:07:56,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:56,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:07:56,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:56,668 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-03 01:07:56,668 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:07:56,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040407434] [2023-04-03 01:07:56,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040407434] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 01:07:56,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185916568] [2023-04-03 01:07:56,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:56,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:07:56,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 01:07:56,669 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 01:07:56,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-04-03 01:07:56,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:56,782 INFO L262 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 33 conjunts are in the unsatisfiable core [2023-04-03 01:07:56,785 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 01:07:57,074 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:07:57,075 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 01:07:57,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [185916568] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:07:57,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 01:07:57,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14] total 26 [2023-04-03 01:07:57,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365383930] [2023-04-03 01:07:57,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:07:57,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-03 01:07:57,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:07:57,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-03 01:07:57,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-04-03 01:07:57,077 INFO L87 Difference]: Start difference. First operand 3069 states and 3737 transitions. Second operand has 14 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 6 states have call successors, (26), 5 states have call predecessors, (26), 7 states have return successors, (20), 7 states have call predecessors, (20), 6 states have call successors, (20) [2023-04-03 01:07:58,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:07:58,432 INFO L93 Difference]: Finished difference Result 7715 states and 9808 transitions. [2023-04-03 01:07:58,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-04-03 01:07:58,432 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 6 states have call successors, (26), 5 states have call predecessors, (26), 7 states have return successors, (20), 7 states have call predecessors, (20), 6 states have call successors, (20) Word has length 108 [2023-04-03 01:07:58,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:07:58,455 INFO L225 Difference]: With dead ends: 7715 [2023-04-03 01:07:58,456 INFO L226 Difference]: Without dead ends: 4652 [2023-04-03 01:07:58,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 510 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=248, Invalid=1732, Unknown=0, NotChecked=0, Total=1980 [2023-04-03 01:07:58,500 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 200 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 1359 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 1452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-03 01:07:58,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 392 Invalid, 1452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1359 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-03 01:07:58,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4652 states. [2023-04-03 01:07:59,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4652 to 4607. [2023-04-03 01:07:59,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4607 states, 2746 states have (on average 1.2152221412964312) internal successors, (3337), 2928 states have internal predecessors, (3337), 935 states have call successors, (935), 905 states have call predecessors, (935), 925 states have return successors, (1536), 937 states have call predecessors, (1536), 931 states have call successors, (1536) [2023-04-03 01:07:59,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4607 states to 4607 states and 5808 transitions. [2023-04-03 01:07:59,040 INFO L78 Accepts]: Start accepts. Automaton has 4607 states and 5808 transitions. Word has length 108 [2023-04-03 01:07:59,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:07:59,040 INFO L495 AbstractCegarLoop]: Abstraction has 4607 states and 5808 transitions. [2023-04-03 01:07:59,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 6 states have call successors, (26), 5 states have call predecessors, (26), 7 states have return successors, (20), 7 states have call predecessors, (20), 6 states have call successors, (20) [2023-04-03 01:07:59,041 INFO L276 IsEmpty]: Start isEmpty. Operand 4607 states and 5808 transitions. [2023-04-03 01:07:59,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-04-03 01:07:59,043 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:07:59,044 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:07:59,049 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-04-03 01:07:59,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-04-03 01:07:59,250 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:07:59,251 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:07:59,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1821481115, now seen corresponding path program 1 times [2023-04-03 01:07:59,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:07:59,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314154099] [2023-04-03 01:07:59,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:59,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:07:59,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-03 01:07:59,293 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-03 01:07:59,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-03 01:07:59,355 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-04-03 01:07:59,357 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-03 01:07:59,358 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-03 01:07:59,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-03 01:07:59,362 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:07:59,366 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-03 01:07:59,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.04 01:07:59 BoogieIcfgContainer [2023-04-03 01:07:59,437 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-03 01:07:59,438 INFO L158 Benchmark]: Toolchain (without parser) took 110677.86ms. Allocated memory was 261.1MB in the beginning and 909.1MB in the end (delta: 648.0MB). Free memory was 211.3MB in the beginning and 821.3MB in the end (delta: -610.0MB). Peak memory consumption was 38.4MB. Max. memory is 8.0GB. [2023-04-03 01:07:59,438 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 209.7MB. Free memory is still 158.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-03 01:07:59,438 INFO L158 Benchmark]: CACSL2BoogieTranslator took 331.02ms. Allocated memory is still 261.1MB. Free memory was 211.3MB in the beginning and 192.9MB in the end (delta: 18.4MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-04-03 01:07:59,438 INFO L158 Benchmark]: Boogie Preprocessor took 70.67ms. Allocated memory is still 261.1MB. Free memory was 192.9MB in the beginning and 189.3MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-04-03 01:07:59,439 INFO L158 Benchmark]: RCFGBuilder took 924.96ms. Allocated memory is still 261.1MB. Free memory was 189.3MB in the beginning and 180.7MB in the end (delta: 8.6MB). Peak memory consumption was 19.4MB. Max. memory is 8.0GB. [2023-04-03 01:07:59,439 INFO L158 Benchmark]: TraceAbstraction took 109345.69ms. Allocated memory was 261.1MB in the beginning and 909.1MB in the end (delta: 648.0MB). Free memory was 179.6MB in the beginning and 821.3MB in the end (delta: -641.7MB). Peak memory consumption was 6.4MB. Max. memory is 8.0GB. [2023-04-03 01:07:59,440 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 209.7MB. Free memory is still 158.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 331.02ms. Allocated memory is still 261.1MB. Free memory was 211.3MB in the beginning and 192.9MB in the end (delta: 18.4MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 70.67ms. Allocated memory is still 261.1MB. Free memory was 192.9MB in the beginning and 189.3MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 924.96ms. Allocated memory is still 261.1MB. Free memory was 189.3MB in the beginning and 180.7MB in the end (delta: 8.6MB). Peak memory consumption was 19.4MB. Max. memory is 8.0GB. * TraceAbstraction took 109345.69ms. Allocated memory was 261.1MB in the beginning and 909.1MB in the end (delta: 648.0MB). Free memory was 179.6MB in the beginning and 821.3MB in the end (delta: -641.7MB). Peak memory consumption was 6.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 320]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L130] int pumpRunning = 0; [L131] int systemActive = 1; [L325] int cleanupTimeShifts = 4; [L425] int waterLevel = 1; [L426] int methaneLevelCritical = 0; [L723] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L401] int retValue_acc ; [L402] 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] [L406] 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] [L407] 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] [L408] 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] [L545] int retValue_acc ; [L548] retValue_acc = 1 [L549] return (retValue_acc); [L408] 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] [L408] tmp = valid_product() [L410] 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] [L412] 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] [L413] 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] [L392] 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] [L56] int splverifierCounter ; [L57] int tmp ; [L58] int tmp___0 ; [L59] int tmp___1 ; [L60] int tmp___2 ; [L63] 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] [L65] 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] [L67] COND TRUE splverifierCounter < 4 [L73] tmp = __VERIFIER_nondet_int() [L75] 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] [L77] 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] [L443] COND TRUE waterLevel < 2 [L444] waterLevel = waterLevel + 1 [L77] 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] [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\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=0, waterLevel=2] [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND TRUE \read(tmp___2) 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=0, tmp___2=1, waterLevel=2] [L110] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L138] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L145] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L147] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L167] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L170] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L172] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L282] int retValue_acc ; [L283] int tmp ; [L284] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L288] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L505] int retValue_acc ; [L508] COND FALSE !(waterLevel < 2) [L512] retValue_acc = 0 [L513] return (retValue_acc); [L288] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L288] tmp = isHighWaterSensorDry() [L290] COND FALSE !(\read(tmp)) [L293] tmp___0 = 1 [L295] retValue_acc = tmp___0 [L296] return (retValue_acc); [L172] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L172] tmp = isHighWaterLevel() [L174] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L176] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L201] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L205] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L226] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L230] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L464] int retValue_acc ; [L467] retValue_acc = methaneLevelCritical [L468] return (retValue_acc); [L230] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L230] retValue_acc = isMethaneLevelCritical() [L232] return (retValue_acc); [L205] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L205] tmp = isMethaneAlarm() [L207] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L211] CALL activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L195] pumpRunning = 1 [L211] RET activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L176] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L147] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L153] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L921] int tmp ; [L922] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L926] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L496] int retValue_acc ; [L499] retValue_acc = waterLevel [L500] return (retValue_acc); [L926] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L926] tmp = getWaterLevel() [L928] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2] [L153] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L110] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L65] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L67] COND TRUE splverifierCounter < 4 [L73] tmp = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L110] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L138] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L140] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L431] COND TRUE waterLevel > 0 [L432] waterLevel = waterLevel - 1 [L140] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L145] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L147] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L167] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L170] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L185] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L147] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L153] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L921] int tmp ; [L922] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L926] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L496] int retValue_acc ; [L499] retValue_acc = waterLevel [L500] return (retValue_acc); [L926] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=1, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L926] tmp = getWaterLevel() [L928] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L153] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L110] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L65] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L67] COND TRUE splverifierCounter < 4 [L73] tmp = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L110] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L138] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L140] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L431] COND TRUE waterLevel > 0 [L432] waterLevel = waterLevel - 1 [L140] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L145] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L147] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L167] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L170] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L185] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L147] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L153] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L921] int tmp ; [L922] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L926] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L496] int retValue_acc ; [L499] retValue_acc = waterLevel [L500] return (retValue_acc); [L926] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, getWaterLevel()=0, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L926] tmp = getWaterLevel() [L928] COND TRUE tmp == 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L930] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L237] int retValue_acc ; [L240] retValue_acc = pumpRunning [L241] return (retValue_acc); [L930] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L930] tmp___0 = isPumpRunning() [L932] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=0] [L934] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L320] reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 182 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 109.2s, OverallIterations: 11, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 74.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7196 SdHoareTripleChecker+Valid, 16.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7093 mSDsluCounter, 6735 SdHoareTripleChecker+Invalid, 14.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5772 mSDsCounter, 4868 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 27613 IncrementalHoareTripleChecker+Invalid, 32481 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4868 mSolverCounterUnsat, 963 mSDtfsCounter, 27613 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1822 GetRequests, 1052 SyntacticMatches, 18 SemanticMatches, 752 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51816 ImplicationChecksByTransitivity, 67.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4607occurred in iteration=10, InterpolantAutomatonStates: 493, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.7s AutomataMinimizationTime, 10 MinimizatonAttempts, 3166 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.4s InterpolantComputationTime, 1355 NumberOfCodeBlocks, 1355 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1573 ConstructedInterpolants, 0 QuantifiedInterpolants, 4680 SizeOfPredicates, 42 NumberOfNonLiveVariables, 2001 ConjunctsInSsa, 242 ConjunctsInUnsatCore, 19 InterpolantComputations, 6 PerfectInterpolantSequences, 230/350 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: OVERALL_TIME: 11.7s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 49, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 229, DAG_INTERPRETER_EARLY_EXITS: 3, TOOLS_POST_APPLICATIONS: 233, TOOLS_POST_TIME: 1.3s, TOOLS_POST_CALL_APPLICATIONS: 180, TOOLS_POST_CALL_TIME: 1.4s, TOOLS_POST_RETURN_APPLICATIONS: 134, TOOLS_POST_RETURN_TIME: 1.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 547, TOOLS_QUANTIFIERELIM_TIME: 3.6s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.0s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 737, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 138, DOMAIN_JOIN_TIME: 7.3s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME: 0.4s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 5, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 229, DOMAIN_ISBOTTOM_TIME: 0.2s, LOOP_SUMMARIZER_APPLICATIONS: 3, LOOP_SUMMARIZER_CACHE_MISSES: 3, LOOP_SUMMARIZER_OVERALL_TIME: 5.2s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 5.2s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 5, CALL_SUMMARIZER_APPLICATIONS: 134, CALL_SUMMARIZER_CACHE_MISSES: 37, CALL_SUMMARIZER_OVERALL_TIME: 0.2s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.2s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 2639, DAG_COMPRESSION_RETAINED_NODES: 707, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-04-03 01:07:59,457 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...