/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain IntervalDomain -i ../sv-benchmarks/c/product-lines/minepump_spec1_product58.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 23:52:47,428 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 23:52:47,429 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 23:52:47,445 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 23:52:47,446 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 23:52:47,446 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 23:52:47,447 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 23:52:47,448 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 23:52:47,449 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 23:52:47,449 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 23:52:47,450 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 23:52:47,451 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 23:52:47,451 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 23:52:47,451 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 23:52:47,452 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 23:52:47,453 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 23:52:47,453 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 23:52:47,454 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 23:52:47,455 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 23:52:47,456 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 23:52:47,461 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 23:52:47,462 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 23:52:47,463 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 23:52:47,463 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 23:52:47,465 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 23:52:47,466 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 23:52:47,466 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 23:52:47,466 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 23:52:47,467 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 23:52:47,467 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 23:52:47,467 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 23:52:47,468 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 23:52:47,468 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 23:52:47,469 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 23:52:47,469 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 23:52:47,469 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 23:52:47,470 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 23:52:47,470 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 23:52:47,470 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 23:52:47,471 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 23:52:47,471 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 23:52:47,472 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-03-31 23:52:47,484 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 23:52:47,484 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 23:52:47,484 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 23:52:47,485 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 23:52:47,485 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 23:52:47,485 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 23:52:47,485 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 23:52:47,485 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 23:52:47,485 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 23:52:47,485 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 23:52:47,485 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 23:52:47,486 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 23:52:47,486 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 23:52:47,486 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 23:52:47,486 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 23:52:47,486 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 23:52:47,486 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 23:52:47,486 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 23:52:47,486 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 23:52:47,486 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 23:52:47,486 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 23:52:47,487 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 23:52:47,487 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 23:52:47,487 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 23:52:47,487 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 23:52:47,487 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 23:52:47,487 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 23:52:47,487 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 23:52:47,487 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 23:52:47,487 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 23:52:47,487 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 23:52:47,487 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 23:52:47,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 23:52:47,488 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 23:52:47,488 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 23:52:47,488 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 23:52:47,488 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 23:52:47,488 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 23:52:47,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 23:52:47,488 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 23:52:47,488 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 23:52:47,488 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-03-31 23:52:47,658 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 23:52:47,670 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 23:52:47,672 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 23:52:47,673 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 23:52:47,673 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 23:52:47,674 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product58.cil.c [2023-03-31 23:52:48,722 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 23:52:48,909 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 23:52:48,909 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product58.cil.c [2023-03-31 23:52:48,922 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/243733941/a13958af58ba46769f692cccf0542093/FLAG4eea6e998 [2023-03-31 23:52:48,932 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/243733941/a13958af58ba46769f692cccf0542093 [2023-03-31 23:52:48,933 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 23:52:48,934 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 23:52:48,935 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 23:52:48,935 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 23:52:48,937 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 23:52:48,937 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 11:52:48" (1/1) ... [2023-03-31 23:52:48,938 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f3ef6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:52:48, skipping insertion in model container [2023-03-31 23:52:48,938 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 11:52:48" (1/1) ... [2023-03-31 23:52:48,958 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 23:52:48,990 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 23:52:49,075 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product58.cil.c[1605,1618] [2023-03-31 23:52:49,132 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 23:52:49,143 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 23:52:49,151 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product58.cil.c[1605,1618] [2023-03-31 23:52:49,179 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 23:52:49,191 INFO L208 MainTranslator]: Completed translation [2023-03-31 23:52:49,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:52:49 WrapperNode [2023-03-31 23:52:49,191 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 23:52:49,192 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 23:52:49,192 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 23:52:49,192 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 23:52:49,214 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:52:49" (1/1) ... [2023-03-31 23:52:49,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:52:49" (1/1) ... [2023-03-31 23:52:49,228 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:52:49" (1/1) ... [2023-03-31 23:52:49,228 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:52:49" (1/1) ... [2023-03-31 23:52:49,243 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:52:49" (1/1) ... [2023-03-31 23:52:49,247 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:52:49" (1/1) ... [2023-03-31 23:52:49,249 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:52:49" (1/1) ... [2023-03-31 23:52:49,250 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:52:49" (1/1) ... [2023-03-31 23:52:49,254 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 23:52:49,255 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 23:52:49,255 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 23:52:49,255 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 23:52:49,255 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:52:49" (1/1) ... [2023-03-31 23:52:49,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 23:52:49,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:52:49,293 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-03-31 23:52:49,303 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-03-31 23:52:49,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 23:52:49,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 23:52:49,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-03-31 23:52:49,322 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 23:52:49,322 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-03-31 23:52:49,322 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-03-31 23:52:49,323 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-03-31 23:52:49,323 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-03-31 23:52:49,323 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-03-31 23:52:49,323 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-03-31 23:52:49,323 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-03-31 23:52:49,323 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2023-03-31 23:52:49,323 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2023-03-31 23:52:49,323 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-03-31 23:52:49,323 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-03-31 23:52:49,323 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-03-31 23:52:49,323 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-03-31 23:52:49,324 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 23:52:49,324 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-03-31 23:52:49,324 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-03-31 23:52:49,324 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-03-31 23:52:49,324 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-03-31 23:52:49,324 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2023-03-31 23:52:49,324 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-03-31 23:52:49,324 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-03-31 23:52:49,324 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-03-31 23:52:49,324 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-03-31 23:52:49,324 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-03-31 23:52:49,325 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2023-03-31 23:52:49,325 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2023-03-31 23:52:49,325 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2023-03-31 23:52:49,325 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2023-03-31 23:52:49,325 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-03-31 23:52:49,325 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-03-31 23:52:49,325 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-03-31 23:52:49,325 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-03-31 23:52:49,325 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-03-31 23:52:49,325 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-03-31 23:52:49,325 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-03-31 23:52:49,325 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-03-31 23:52:49,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-03-31 23:52:49,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-03-31 23:52:49,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-03-31 23:52:49,326 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 23:52:49,326 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 23:52:49,326 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 23:52:49,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 23:52:49,326 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 23:52:49,326 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-03-31 23:52:49,326 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-03-31 23:52:49,326 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-03-31 23:52:49,326 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-03-31 23:52:49,327 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-03-31 23:52:49,327 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-03-31 23:52:49,327 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-03-31 23:52:49,327 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-03-31 23:52:49,327 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2023-03-31 23:52:49,327 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2023-03-31 23:52:49,327 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-03-31 23:52:49,327 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-03-31 23:52:49,327 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-03-31 23:52:49,327 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-03-31 23:52:49,327 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-03-31 23:52:49,328 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-03-31 23:52:49,328 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-03-31 23:52:49,328 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-03-31 23:52:49,328 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-03-31 23:52:49,328 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-03-31 23:52:49,328 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 23:52:49,328 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-03-31 23:52:49,328 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-03-31 23:52:49,328 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-03-31 23:52:49,328 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2023-03-31 23:52:49,328 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2023-03-31 23:52:49,329 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-03-31 23:52:49,329 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-03-31 23:52:49,329 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2023-03-31 23:52:49,329 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-03-31 23:52:49,329 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2023-03-31 23:52:49,329 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2023-03-31 23:52:49,329 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-03-31 23:52:49,329 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-03-31 23:52:49,329 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-03-31 23:52:49,329 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-03-31 23:52:49,329 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-03-31 23:52:49,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-03-31 23:52:49,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-03-31 23:52:49,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 23:52:49,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-03-31 23:52:49,330 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-03-31 23:52:49,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 23:52:49,330 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-03-31 23:52:49,330 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-03-31 23:52:49,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 23:52:49,330 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-03-31 23:52:49,330 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-03-31 23:52:49,330 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-03-31 23:52:49,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 23:52:49,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 23:52:49,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 23:52:49,429 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 23:52:49,431 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 23:52:49,834 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 23:52:49,935 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 23:52:49,935 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-03-31 23:52:49,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 11:52:49 BoogieIcfgContainer [2023-03-31 23:52:49,937 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 23:52:49,938 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 23:52:49,939 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 23:52:49,940 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 23:52:49,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 11:52:48" (1/3) ... [2023-03-31 23:52:49,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ac12812 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 11:52:49, skipping insertion in model container [2023-03-31 23:52:49,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:52:49" (2/3) ... [2023-03-31 23:52:49,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ac12812 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 11:52:49, skipping insertion in model container [2023-03-31 23:52:49,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 11:52:49" (3/3) ... [2023-03-31 23:52:49,942 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product58.cil.c [2023-03-31 23:52:49,953 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 23:52:49,953 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 23:52:50,003 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 23:52:50,008 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;@3714be91, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-03-31 23:52:50,008 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 23:52:50,013 INFO L276 IsEmpty]: Start isEmpty. Operand has 154 states, 71 states have (on average 1.2535211267605635) internal successors, (89), 85 states have internal predecessors, (89), 49 states have call successors, (49), 31 states have call predecessors, (49), 31 states have return successors, (49), 45 states have call predecessors, (49), 49 states have call successors, (49) [2023-03-31 23:52:50,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-03-31 23:52:50,021 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:52:50,021 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] [2023-03-31 23:52:50,021 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:52:50,025 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:52:50,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1560410100, now seen corresponding path program 1 times [2023-03-31 23:52:50,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:52:50,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794904834] [2023-03-31 23:52:50,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:52:50,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:52:50,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:52:50,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:52:50,188 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:52:50,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794904834] [2023-03-31 23:52:50,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794904834] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:52:50,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:52:50,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-03-31 23:52:50,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451151046] [2023-03-31 23:52:50,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:52:50,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-03-31 23:52:50,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:52:50,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-03-31 23:52:50,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-03-31 23:52:50,235 INFO L87 Difference]: Start difference. First operand has 154 states, 71 states have (on average 1.2535211267605635) internal successors, (89), 85 states have internal predecessors, (89), 49 states have call successors, (49), 31 states have call predecessors, (49), 31 states have return successors, (49), 45 states have call predecessors, (49), 49 states have call successors, (49) 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) [2023-03-31 23:52:50,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:52:50,311 INFO L93 Difference]: Finished difference Result 241 states and 288 transitions. [2023-03-31 23:52:50,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-31 23:52:50,315 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 [2023-03-31 23:52:50,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:52:50,321 INFO L225 Difference]: With dead ends: 241 [2023-03-31 23:52:50,321 INFO L226 Difference]: Without dead ends: 121 [2023-03-31 23:52:50,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-03-31 23:52:50,329 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-31 23:52:50,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 130 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-31 23:52:50,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-03-31 23:52:50,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2023-03-31 23:52:50,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 62 states have (on average 1.2096774193548387) internal successors, (75), 73 states have internal predecessors, (75), 34 states have call successors, (34), 29 states have call predecessors, (34), 24 states have return successors, (29), 25 states have call predecessors, (29), 29 states have call successors, (29) [2023-03-31 23:52:50,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 138 transitions. [2023-03-31 23:52:50,361 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 138 transitions. Word has length 42 [2023-03-31 23:52:50,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:52:50,361 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 138 transitions. [2023-03-31 23:52:50,362 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) [2023-03-31 23:52:50,362 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 138 transitions. [2023-03-31 23:52:50,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-03-31 23:52:50,363 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:52:50,364 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] [2023-03-31 23:52:50,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 23:52:50,364 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:52:50,364 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:52:50,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1456378473, now seen corresponding path program 1 times [2023-03-31 23:52:50,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:52:50,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677772798] [2023-03-31 23:52:50,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:52:50,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:52:50,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:52:50,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:52:50,439 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:52:50,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677772798] [2023-03-31 23:52:50,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677772798] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:52:50,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:52:50,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-03-31 23:52:50,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513909040] [2023-03-31 23:52:50,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:52:50,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-03-31 23:52:50,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:52:50,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-03-31 23:52:50,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-03-31 23:52:50,441 INFO L87 Difference]: Start difference. First operand 121 states and 138 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) [2023-03-31 23:52:50,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:52:50,485 INFO L93 Difference]: Finished difference Result 195 states and 222 transitions. [2023-03-31 23:52:50,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-03-31 23:52:50,486 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 [2023-03-31 23:52:50,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:52:50,487 INFO L225 Difference]: With dead ends: 195 [2023-03-31 23:52:50,487 INFO L226 Difference]: Without dead ends: 113 [2023-03-31 23:52:50,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-03-31 23:52:50,489 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 9 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-31 23:52:50,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 207 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-31 23:52:50,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-03-31 23:52:50,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2023-03-31 23:52:50,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 57 states have (on average 1.2105263157894737) internal successors, (69), 68 states have internal predecessors, (69), 31 states have call successors, (31), 28 states have call predecessors, (31), 24 states have return successors, (27), 23 states have call predecessors, (27), 27 states have call successors, (27) [2023-03-31 23:52:50,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 127 transitions. [2023-03-31 23:52:50,503 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 127 transitions. Word has length 43 [2023-03-31 23:52:50,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:52:50,503 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 127 transitions. [2023-03-31 23:52:50,504 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) [2023-03-31 23:52:50,504 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 127 transitions. [2023-03-31 23:52:50,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-03-31 23:52:50,505 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:52:50,505 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:52:50,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 23:52:50,505 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:52:50,505 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:52:50,506 INFO L85 PathProgramCache]: Analyzing trace with hash 2145005997, now seen corresponding path program 1 times [2023-03-31 23:52:50,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:52:50,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091733400] [2023-03-31 23:52:50,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:52:50,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:52:50,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:52:50,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:52:50,652 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:52:50,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091733400] [2023-03-31 23:52:50,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091733400] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:52:50,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:52:50,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-03-31 23:52:50,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763692269] [2023-03-31 23:52:50,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:52:50,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-03-31 23:52:50,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:52:50,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-03-31 23:52:50,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-03-31 23:52:50,654 INFO L87 Difference]: Start difference. First operand 113 states and 127 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) [2023-03-31 23:52:50,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:52:50,819 INFO L93 Difference]: Finished difference Result 204 states and 233 transitions. [2023-03-31 23:52:50,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-03-31 23:52:50,820 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 [2023-03-31 23:52:50,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:52:50,824 INFO L225 Difference]: With dead ends: 204 [2023-03-31 23:52:50,824 INFO L226 Difference]: Without dead ends: 113 [2023-03-31 23:52:50,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-03-31 23:52:50,829 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 116 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-31 23:52:50,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 308 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-31 23:52:50,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-03-31 23:52:50,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2023-03-31 23:52:50,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 57 states have (on average 1.1929824561403508) internal successors, (68), 67 states have internal predecessors, (68), 31 states have call successors, (31), 28 states have call predecessors, (31), 24 states have return successors, (27), 23 states have call predecessors, (27), 27 states have call successors, (27) [2023-03-31 23:52:50,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 126 transitions. [2023-03-31 23:52:50,837 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 126 transitions. Word has length 46 [2023-03-31 23:52:50,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:52:50,837 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 126 transitions. [2023-03-31 23:52:50,837 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) [2023-03-31 23:52:50,837 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 126 transitions. [2023-03-31 23:52:50,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-03-31 23:52:50,839 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:52:50,839 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:52:50,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-31 23:52:50,839 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:52:50,839 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:52:50,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1356159830, now seen corresponding path program 1 times [2023-03-31 23:52:50,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:52:50,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188540933] [2023-03-31 23:52:50,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:52:50,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:52:50,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:52:50,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:52:50,944 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:52:50,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188540933] [2023-03-31 23:52:50,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188540933] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:52:50,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:52:50,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-03-31 23:52:50,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144219381] [2023-03-31 23:52:50,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:52:50,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-03-31 23:52:50,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:52:50,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-03-31 23:52:50,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-03-31 23:52:50,945 INFO L87 Difference]: Start difference. First operand 113 states and 126 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 5 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (10), 3 states have call predecessors, (10), 5 states have call successors, (10) [2023-03-31 23:52:51,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:52:51,178 INFO L93 Difference]: Finished difference Result 294 states and 344 transitions. [2023-03-31 23:52:51,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-31 23:52:51,178 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 5 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (10), 3 states have call predecessors, (10), 5 states have call successors, (10) Word has length 59 [2023-03-31 23:52:51,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:52:51,182 INFO L225 Difference]: With dead ends: 294 [2023-03-31 23:52:51,182 INFO L226 Difference]: Without dead ends: 203 [2023-03-31 23:52:51,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-03-31 23:52:51,190 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 152 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-03-31 23:52:51,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 156 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-03-31 23:52:51,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2023-03-31 23:52:51,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 186. [2023-03-31 23:52:51,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 99 states have (on average 1.1616161616161615) internal successors, (115), 109 states have internal predecessors, (115), 43 states have call successors, (43), 41 states have call predecessors, (43), 43 states have return successors, (47), 42 states have call predecessors, (47), 39 states have call successors, (47) [2023-03-31 23:52:51,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 205 transitions. [2023-03-31 23:52:51,245 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 205 transitions. Word has length 59 [2023-03-31 23:52:51,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:52:51,245 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 205 transitions. [2023-03-31 23:52:51,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 5 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (10), 3 states have call predecessors, (10), 5 states have call successors, (10) [2023-03-31 23:52:51,245 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 205 transitions. [2023-03-31 23:52:51,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-03-31 23:52:51,246 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:52:51,247 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:52:51,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-03-31 23:52:51,247 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:52:51,247 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:52:51,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1406269744, now seen corresponding path program 1 times [2023-03-31 23:52:51,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:52:51,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438106869] [2023-03-31 23:52:51,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:52:51,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:52:51,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:52:51,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:52:51,431 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:52:51,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438106869] [2023-03-31 23:52:51,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438106869] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:52:51,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:52:51,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-03-31 23:52:51,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742398435] [2023-03-31 23:52:51,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:52:51,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-03-31 23:52:51,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:52:51,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-03-31 23:52:51,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-03-31 23:52:51,436 INFO L87 Difference]: Start difference. First operand 186 states and 205 transitions. Second operand has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 4 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2023-03-31 23:52:51,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:52:51,727 INFO L93 Difference]: Finished difference Result 206 states and 233 transitions. [2023-03-31 23:52:51,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-03-31 23:52:51,728 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 4 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) Word has length 68 [2023-03-31 23:52:51,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:52:51,729 INFO L225 Difference]: With dead ends: 206 [2023-03-31 23:52:51,729 INFO L226 Difference]: Without dead ends: 203 [2023-03-31 23:52:51,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2023-03-31 23:52:51,730 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 118 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-03-31 23:52:51,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 273 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-03-31 23:52:51,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2023-03-31 23:52:51,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 186. [2023-03-31 23:52:51,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 99 states have (on average 1.1515151515151516) internal successors, (114), 109 states have internal predecessors, (114), 43 states have call successors, (43), 41 states have call predecessors, (43), 43 states have return successors, (47), 42 states have call predecessors, (47), 39 states have call successors, (47) [2023-03-31 23:52:51,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 204 transitions. [2023-03-31 23:52:51,744 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 204 transitions. Word has length 68 [2023-03-31 23:52:51,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:52:51,745 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 204 transitions. [2023-03-31 23:52:51,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 4 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2023-03-31 23:52:51,745 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 204 transitions. [2023-03-31 23:52:51,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-03-31 23:52:51,746 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:52:51,746 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:52:51,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-03-31 23:52:51,747 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:52:51,747 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:52:51,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1008839922, now seen corresponding path program 1 times [2023-03-31 23:52:51,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:52:51,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791371106] [2023-03-31 23:52:51,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:52:51,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:52:51,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:52:51,863 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-03-31 23:52:51,863 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:52:51,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791371106] [2023-03-31 23:52:51,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791371106] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:52:51,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:52:51,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-03-31 23:52:51,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113376178] [2023-03-31 23:52:51,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:52:51,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-03-31 23:52:51,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:52:51,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-03-31 23:52:51,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-03-31 23:52:51,865 INFO L87 Difference]: Start difference. First operand 186 states and 204 transitions. Second operand has 10 states, 8 states have (on average 5.5) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (21), 3 states have call predecessors, (21), 4 states have return successors, (15), 6 states have call predecessors, (15), 3 states have call successors, (15) [2023-03-31 23:52:52,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:52:52,112 INFO L93 Difference]: Finished difference Result 471 states and 544 transitions. [2023-03-31 23:52:52,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-03-31 23:52:52,113 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 5.5) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (21), 3 states have call predecessors, (21), 4 states have return successors, (15), 6 states have call predecessors, (15), 3 states have call successors, (15) Word has length 81 [2023-03-31 23:52:52,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:52:52,115 INFO L225 Difference]: With dead ends: 471 [2023-03-31 23:52:52,115 INFO L226 Difference]: Without dead ends: 307 [2023-03-31 23:52:52,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2023-03-31 23:52:52,116 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 104 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-03-31 23:52:52,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 656 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-03-31 23:52:52,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2023-03-31 23:52:52,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 299. [2023-03-31 23:52:52,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 163 states have (on average 1.1349693251533743) internal successors, (185), 178 states have internal predecessors, (185), 68 states have call successors, (68), 64 states have call predecessors, (68), 67 states have return successors, (79), 67 states have call predecessors, (79), 64 states have call successors, (79) [2023-03-31 23:52:52,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 332 transitions. [2023-03-31 23:52:52,157 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 332 transitions. Word has length 81 [2023-03-31 23:52:52,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:52:52,157 INFO L495 AbstractCegarLoop]: Abstraction has 299 states and 332 transitions. [2023-03-31 23:52:52,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 5.5) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (21), 3 states have call predecessors, (21), 4 states have return successors, (15), 6 states have call predecessors, (15), 3 states have call successors, (15) [2023-03-31 23:52:52,158 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 332 transitions. [2023-03-31 23:52:52,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-03-31 23:52:52,161 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:52:52,161 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:52:52,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-03-31 23:52:52,161 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:52:52,161 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:52:52,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1438134646, now seen corresponding path program 1 times [2023-03-31 23:52:52,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:52:52,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637489343] [2023-03-31 23:52:52,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:52:52,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:52:52,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:52:52,453 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-03-31 23:52:52,453 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:52:52,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637489343] [2023-03-31 23:52:52,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637489343] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 23:52:52,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [225041236] [2023-03-31 23:52:52,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:52:52,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:52:52,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:52:52,471 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 23:52:52,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-03-31 23:52:52,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:52:52,586 INFO L262 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 33 conjunts are in the unsatisfiable core [2023-03-31 23:52:52,591 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 23:52:52,924 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-03-31 23:52:52,925 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-31 23:52:52,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [225041236] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:52:52,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-03-31 23:52:52,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14] total 22 [2023-03-31 23:52:52,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021939690] [2023-03-31 23:52:52,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:52:52,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-03-31 23:52:52,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:52:52,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-03-31 23:52:52,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=390, Unknown=0, NotChecked=0, Total=462 [2023-03-31 23:52:52,927 INFO L87 Difference]: Start difference. First operand 299 states and 332 transitions. Second operand has 14 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 6 states have call successors, (31), 5 states have call predecessors, (31), 7 states have return successors, (25), 7 states have call predecessors, (25), 6 states have call successors, (25) [2023-03-31 23:52:53,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:52:53,894 INFO L93 Difference]: Finished difference Result 782 states and 924 transitions. [2023-03-31 23:52:53,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-03-31 23:52:53,894 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 6 states have call successors, (31), 5 states have call predecessors, (31), 7 states have return successors, (25), 7 states have call predecessors, (25), 6 states have call successors, (25) Word has length 130 [2023-03-31 23:52:53,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:52:53,896 INFO L225 Difference]: With dead ends: 782 [2023-03-31 23:52:53,896 INFO L226 Difference]: Without dead ends: 505 [2023-03-31 23:52:53,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 372 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=220, Invalid=1420, Unknown=0, NotChecked=0, Total=1640 [2023-03-31 23:52:53,898 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 220 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 1548 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 1663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 1548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-03-31 23:52:53,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 311 Invalid, 1663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 1548 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-03-31 23:52:53,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2023-03-31 23:52:53,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 476. [2023-03-31 23:52:53,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 273 states have (on average 1.1428571428571428) internal successors, (312), 293 states have internal predecessors, (312), 105 states have call successors, (105), 104 states have call predecessors, (105), 97 states have return successors, (128), 98 states have call predecessors, (128), 101 states have call successors, (128) [2023-03-31 23:52:53,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 545 transitions. [2023-03-31 23:52:53,929 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 545 transitions. Word has length 130 [2023-03-31 23:52:53,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:52:53,929 INFO L495 AbstractCegarLoop]: Abstraction has 476 states and 545 transitions. [2023-03-31 23:52:53,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 6 states have call successors, (31), 5 states have call predecessors, (31), 7 states have return successors, (25), 7 states have call predecessors, (25), 6 states have call successors, (25) [2023-03-31 23:52:53,929 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 545 transitions. [2023-03-31 23:52:53,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-03-31 23:52:53,931 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:52:53,931 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:52:53,951 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-03-31 23:52:54,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:52:54,138 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:52:54,138 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:52:54,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1217881089, now seen corresponding path program 1 times [2023-03-31 23:52:54,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:52:54,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57831862] [2023-03-31 23:52:54,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:52:54,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:52:54,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:52:54,793 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-03-31 23:52:54,794 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:52:54,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57831862] [2023-03-31 23:52:54,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57831862] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 23:52:54,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750411876] [2023-03-31 23:52:54,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:52:54,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:52:54,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:52:54,795 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 23:52:54,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-03-31 23:52:54,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:52:54,906 INFO L262 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 54 conjunts are in the unsatisfiable core [2023-03-31 23:52:54,917 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 23:52:55,236 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-03-31 23:52:55,236 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 23:52:55,942 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-03-31 23:52:55,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [750411876] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 23:52:55,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1584997519] [2023-03-31 23:52:55,963 INFO L159 IcfgInterpreter]: Started Sifa with 106 locations of interest [2023-03-31 23:52:55,963 INFO L166 IcfgInterpreter]: Building call graph [2023-03-31 23:52:55,966 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-31 23:52:55,969 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-31 23:52:55,970 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-31 23:52:56,144 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 28 for LOIs [2023-03-31 23:52:56,164 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 32 for LOIs [2023-03-31 23:52:56,237 INFO L197 IcfgInterpreter]: Interpreting procedure runTest with input of size 32 for LOIs [2023-03-31 23:52:56,244 INFO L197 IcfgInterpreter]: Interpreting procedure test with input of size 32 for LOIs [2023-03-31 23:52:56,815 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 23 for LOIs [2023-03-31 23:52:56,818 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 30 for LOIs [2023-03-31 23:52:56,863 INFO L197 IcfgInterpreter]: Interpreting procedure __utac_acc__Specification1_spec__1 with input of size 20 for LOIs [2023-03-31 23:52:56,888 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 28 for LOIs [2023-03-31 23:52:56,891 INFO L197 IcfgInterpreter]: Interpreting procedure __automaton_fail with input of size 30 for LOIs [2023-03-31 23:52:56,893 INFO L197 IcfgInterpreter]: Interpreting procedure lowerWaterLevel with input of size 30 for LOIs [2023-03-31 23:52:56,897 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment with input of size 23 for LOIs [2023-03-31 23:52:56,935 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 26 for LOIs [2023-03-31 23:52:56,984 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterLevel with input of size 22 for LOIs [2023-03-31 23:52:56,998 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterSensorDry with input of size 22 for LOIs [2023-03-31 23:52:57,002 INFO L197 IcfgInterpreter]: Interpreting procedure activatePump with input of size 34 for LOIs [2023-03-31 23:52:57,033 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 32 for LOIs [2023-03-31 23:52:57,076 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 24 for LOIs [2023-03-31 23:52:57,079 INFO L197 IcfgInterpreter]: Interpreting procedure activatePump__wrappee__lowWaterSensor with input of size 24 for LOIs [2023-03-31 23:52:57,081 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 23 for LOIs [2023-03-31 23:52:57,082 INFO L197 IcfgInterpreter]: Interpreting procedure isLowWaterLevel with input of size 23 for LOIs [2023-03-31 23:52:57,095 INFO L197 IcfgInterpreter]: Interpreting procedure isLowWaterSensorDry with input of size 23 for LOIs [2023-03-31 23:52:57,097 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 32 for LOIs [2023-03-31 23:52:57,101 INFO L197 IcfgInterpreter]: Interpreting procedure setup with input of size 24 for LOIs [2023-03-31 23:52:57,102 INFO L197 IcfgInterpreter]: Interpreting procedure select_features with input of size 24 for LOIs [2023-03-31 23:52:57,103 INFO L197 IcfgInterpreter]: Interpreting procedure valid_product with input of size 24 for LOIs [2023-03-31 23:52:57,105 INFO L197 IcfgInterpreter]: Interpreting procedure select_helpers with input of size 24 for LOIs [2023-03-31 23:52:57,106 INFO L180 IcfgInterpreter]: Interpretation finished [2023-03-31 23:53:00,603 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7216#(and (= ~head~0.offset 0) (= 1 ~systemActive~0) (<= 0 ~methaneLevelCritical~0) (= ~head~0.base 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2023-03-31 23:53:00,604 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-03-31 23:53:00,604 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 23:53:00,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18, 18] total 41 [2023-03-31 23:53:00,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708893545] [2023-03-31 23:53:00,604 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 23:53:00,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2023-03-31 23:53:00,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:53:00,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2023-03-31 23:53:00,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=629, Invalid=8491, Unknown=0, NotChecked=0, Total=9120 [2023-03-31 23:53:00,616 INFO L87 Difference]: Start difference. First operand 476 states and 545 transitions. Second operand has 41 states, 27 states have (on average 4.2592592592592595) internal successors, (115), 31 states have internal predecessors, (115), 12 states have call successors, (62), 10 states have call predecessors, (62), 24 states have return successors, (57), 20 states have call predecessors, (57), 12 states have call successors, (57) [2023-03-31 23:53:02,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:53:02,483 INFO L93 Difference]: Finished difference Result 1847 states and 2268 transitions. [2023-03-31 23:53:02,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-03-31 23:53:02,483 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 27 states have (on average 4.2592592592592595) internal successors, (115), 31 states have internal predecessors, (115), 12 states have call successors, (62), 10 states have call predecessors, (62), 24 states have return successors, (57), 20 states have call predecessors, (57), 12 states have call successors, (57) Word has length 133 [2023-03-31 23:53:02,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:53:02,491 INFO L225 Difference]: With dead ends: 1847 [2023-03-31 23:53:02,492 INFO L226 Difference]: Without dead ends: 1393 [2023-03-31 23:53:02,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 444 GetRequests, 317 SyntacticMatches, 16 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6370 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=951, Invalid=11705, Unknown=0, NotChecked=0, Total=12656 [2023-03-31 23:53:02,496 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 848 mSDsluCounter, 700 mSDsCounter, 0 mSdLazyCounter, 3887 mSolverCounterSat, 749 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 854 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 4636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 749 IncrementalHoareTripleChecker+Valid, 3887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-03-31 23:53:02,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [854 Valid, 776 Invalid, 4636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [749 Valid, 3887 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-03-31 23:53:02,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1393 states. [2023-03-31 23:53:02,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1393 to 1174. [2023-03-31 23:53:02,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1174 states, 681 states have (on average 1.1409691629955947) internal successors, (777), 726 states have internal predecessors, (777), 259 states have call successors, (259), 250 states have call predecessors, (259), 233 states have return successors, (325), 240 states have call predecessors, (325), 255 states have call successors, (325) [2023-03-31 23:53:02,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1174 states to 1174 states and 1361 transitions. [2023-03-31 23:53:02,570 INFO L78 Accepts]: Start accepts. Automaton has 1174 states and 1361 transitions. Word has length 133 [2023-03-31 23:53:02,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:53:02,570 INFO L495 AbstractCegarLoop]: Abstraction has 1174 states and 1361 transitions. [2023-03-31 23:53:02,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 27 states have (on average 4.2592592592592595) internal successors, (115), 31 states have internal predecessors, (115), 12 states have call successors, (62), 10 states have call predecessors, (62), 24 states have return successors, (57), 20 states have call predecessors, (57), 12 states have call successors, (57) [2023-03-31 23:53:02,571 INFO L276 IsEmpty]: Start isEmpty. Operand 1174 states and 1361 transitions. [2023-03-31 23:53:02,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2023-03-31 23:53:02,577 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:53:02,577 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:53:02,582 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-03-31 23:53:02,782 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,SelfDestructingSolverStorable7 [2023-03-31 23:53:02,782 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:53:02,783 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:53:02,783 INFO L85 PathProgramCache]: Analyzing trace with hash -614407267, now seen corresponding path program 1 times [2023-03-31 23:53:02,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:53:02,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297882190] [2023-03-31 23:53:02,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:53:02,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:53:02,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:53:03,692 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 65 proven. 35 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2023-03-31 23:53:03,692 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:53:03,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297882190] [2023-03-31 23:53:03,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297882190] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 23:53:03,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735667557] [2023-03-31 23:53:03,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:53:03,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:53:03,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:53:03,694 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) [2023-03-31 23:53:03,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-03-31 23:53:03,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:53:03,849 INFO L262 TraceCheckSpWp]: Trace formula consists of 748 conjuncts, 58 conjunts are in the unsatisfiable core [2023-03-31 23:53:03,853 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 23:53:04,374 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 142 proven. 33 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-03-31 23:53:04,374 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 23:53:05,656 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 83 proven. 18 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-03-31 23:53:05,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [735667557] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 23:53:05,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [981858935] [2023-03-31 23:53:05,661 INFO L159 IcfgInterpreter]: Started Sifa with 109 locations of interest [2023-03-31 23:53:05,661 INFO L166 IcfgInterpreter]: Building call graph [2023-03-31 23:53:05,661 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-31 23:53:05,662 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-31 23:53:05,662 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-31 23:53:05,734 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 28 for LOIs [2023-03-31 23:53:05,756 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 32 for LOIs [2023-03-31 23:53:05,865 INFO L197 IcfgInterpreter]: Interpreting procedure runTest with input of size 32 for LOIs [2023-03-31 23:53:05,871 INFO L197 IcfgInterpreter]: Interpreting procedure test with input of size 32 for LOIs [2023-03-31 23:53:06,426 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 23 for LOIs [2023-03-31 23:53:06,429 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 30 for LOIs [2023-03-31 23:53:06,465 INFO L197 IcfgInterpreter]: Interpreting procedure __utac_acc__Specification1_spec__1 with input of size 20 for LOIs [2023-03-31 23:53:06,488 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 28 for LOIs [2023-03-31 23:53:06,490 INFO L197 IcfgInterpreter]: Interpreting procedure __automaton_fail with input of size 30 for LOIs [2023-03-31 23:53:06,492 INFO L197 IcfgInterpreter]: Interpreting procedure lowerWaterLevel with input of size 30 for LOIs [2023-03-31 23:53:06,496 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment with input of size 23 for LOIs [2023-03-31 23:53:06,545 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 26 for LOIs [2023-03-31 23:53:06,608 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterLevel with input of size 22 for LOIs [2023-03-31 23:53:06,622 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterSensorDry with input of size 22 for LOIs [2023-03-31 23:53:06,625 INFO L197 IcfgInterpreter]: Interpreting procedure activatePump with input of size 34 for LOIs [2023-03-31 23:53:06,657 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 32 for LOIs [2023-03-31 23:53:06,671 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 24 for LOIs [2023-03-31 23:53:06,674 INFO L197 IcfgInterpreter]: Interpreting procedure activatePump__wrappee__lowWaterSensor with input of size 24 for LOIs [2023-03-31 23:53:06,676 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 23 for LOIs [2023-03-31 23:53:06,677 INFO L197 IcfgInterpreter]: Interpreting procedure isLowWaterLevel with input of size 23 for LOIs [2023-03-31 23:53:06,689 INFO L197 IcfgInterpreter]: Interpreting procedure isLowWaterSensorDry with input of size 23 for LOIs [2023-03-31 23:53:06,691 INFO L197 IcfgInterpreter]: Interpreting procedure deactivatePump with input of size 33 for LOIs [2023-03-31 23:53:06,693 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 32 for LOIs [2023-03-31 23:53:06,697 INFO L197 IcfgInterpreter]: Interpreting procedure setup with input of size 24 for LOIs [2023-03-31 23:53:06,698 INFO L197 IcfgInterpreter]: Interpreting procedure select_features with input of size 24 for LOIs [2023-03-31 23:53:06,699 INFO L197 IcfgInterpreter]: Interpreting procedure valid_product with input of size 24 for LOIs [2023-03-31 23:53:06,701 INFO L197 IcfgInterpreter]: Interpreting procedure select_helpers with input of size 24 for LOIs [2023-03-31 23:53:06,702 INFO L180 IcfgInterpreter]: Interpretation finished [2023-03-31 23:53:10,617 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '13112#(and (= ~head~0.offset 0) (= 1 ~systemActive~0) (<= 0 ~methaneLevelCritical~0) (= ~head~0.base 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2023-03-31 23:53:10,618 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-03-31 23:53:10,618 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 23:53:10,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 16] total 37 [2023-03-31 23:53:10,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413185653] [2023-03-31 23:53:10,618 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 23:53:10,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-03-31 23:53:10,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:53:10,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-03-31 23:53:10,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=537, Invalid=8019, Unknown=0, NotChecked=0, Total=8556 [2023-03-31 23:53:10,622 INFO L87 Difference]: Start difference. First operand 1174 states and 1361 transitions. Second operand has 37 states, 28 states have (on average 6.071428571428571) internal successors, (170), 30 states have internal predecessors, (170), 17 states have call successors, (82), 10 states have call predecessors, (82), 23 states have return successors, (86), 22 states have call predecessors, (86), 17 states have call successors, (86) [2023-03-31 23:53:12,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:53:12,300 INFO L93 Difference]: Finished difference Result 1658 states and 1961 transitions. [2023-03-31 23:53:12,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-03-31 23:53:12,301 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 28 states have (on average 6.071428571428571) internal successors, (170), 30 states have internal predecessors, (170), 17 states have call successors, (82), 10 states have call predecessors, (82), 23 states have return successors, (86), 22 states have call predecessors, (86), 17 states have call successors, (86) Word has length 233 [2023-03-31 23:53:12,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:53:12,303 INFO L225 Difference]: With dead ends: 1658 [2023-03-31 23:53:12,303 INFO L226 Difference]: Without dead ends: 0 [2023-03-31 23:53:12,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 749 GetRequests, 614 SyntacticMatches, 25 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7022 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=907, Invalid=11525, Unknown=0, NotChecked=0, Total=12432 [2023-03-31 23:53:12,325 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 495 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 2360 mSolverCounterSat, 446 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 2806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 446 IncrementalHoareTripleChecker+Valid, 2360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-03-31 23:53:12,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 518 Invalid, 2806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [446 Valid, 2360 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-03-31 23:53:12,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-03-31 23:53:12,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-03-31 23:53:12,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-03-31 23:53:12,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-03-31 23:53:12,327 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 233 [2023-03-31 23:53:12,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:53:12,327 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-03-31 23:53:12,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 28 states have (on average 6.071428571428571) internal successors, (170), 30 states have internal predecessors, (170), 17 states have call successors, (82), 10 states have call predecessors, (82), 23 states have return successors, (86), 22 states have call predecessors, (86), 17 states have call successors, (86) [2023-03-31 23:53:12,327 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-03-31 23:53:12,327 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-03-31 23:53:12,332 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-03-31 23:53:12,347 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-03-31 23:53:12,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:53:12,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-03-31 23:53:15,317 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 11) no Hoare annotation was computed. [2023-03-31 23:53:15,317 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 11) no Hoare annotation was computed. [2023-03-31 23:53:15,318 INFO L899 garLoopResultBuilder]: For program point L705-2(lines 705 726) no Hoare annotation was computed. [2023-03-31 23:53:15,318 INFO L899 garLoopResultBuilder]: For program point L727(lines 704 728) no Hoare annotation was computed. [2023-03-31 23:53:15,318 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 680 735) no Hoare annotation was computed. [2023-03-31 23:53:15,318 INFO L899 garLoopResultBuilder]: For program point L711(lines 711 715) no Hoare annotation was computed. [2023-03-31 23:53:15,318 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_freeEXIT(lines 680 735) no Hoare annotation was computed. [2023-03-31 23:53:15,318 INFO L899 garLoopResultBuilder]: For program point L768(lines 768 772) no Hoare annotation was computed. [2023-03-31 23:53:15,318 INFO L899 garLoopResultBuilder]: For program point L762-2(lines 762 787) no Hoare annotation was computed. [2023-03-31 23:53:15,318 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_resetFINAL(lines 736 795) no Hoare annotation was computed. [2023-03-31 23:53:15,318 INFO L899 garLoopResultBuilder]: For program point L788(lines 761 789) no Hoare annotation was computed. [2023-03-31 23:53:15,318 INFO L899 garLoopResultBuilder]: For program point L781(line 781) no Hoare annotation was computed. [2023-03-31 23:53:15,319 INFO L899 garLoopResultBuilder]: For program point L781-1(line 781) no Hoare annotation was computed. [2023-03-31 23:53:15,319 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_resetEXIT(lines 736 795) no Hoare annotation was computed. [2023-03-31 23:53:15,319 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 736 795) no Hoare annotation was computed. [2023-03-31 23:53:15,319 INFO L899 garLoopResultBuilder]: For program point valid_productEXIT(lines 618 626) no Hoare annotation was computed. [2023-03-31 23:53:15,319 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 618 626) the Hoare annotation is: true [2023-03-31 23:53:15,319 INFO L899 garLoopResultBuilder]: For program point L258-1(lines 258 265) no Hoare annotation was computed. [2023-03-31 23:53:15,320 INFO L899 garLoopResultBuilder]: For program point L256(line 256) no Hoare annotation was computed. [2023-03-31 23:53:15,320 INFO L895 garLoopResultBuilder]: At program point L255(line 255) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (< |old(~waterLevel~0)| 1) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2023-03-31 23:53:15,320 INFO L895 garLoopResultBuilder]: At program point L254(line 254) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (< |old(~waterLevel~0)| 1) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2023-03-31 23:53:15,320 INFO L895 garLoopResultBuilder]: At program point L254-1(line 254) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (< |old(~waterLevel~0)| 1) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2023-03-31 23:53:15,320 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 248 270) no Hoare annotation was computed. [2023-03-31 23:53:15,320 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 248 270) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (< |old(~waterLevel~0)| 1) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2023-03-31 23:53:15,320 INFO L895 garLoopResultBuilder]: At program point L260(line 260) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (< |old(~waterLevel~0)| 1) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= main_~tmp~0 1) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~systemActive~0)| 1))) [2023-03-31 23:53:15,320 INFO L895 garLoopResultBuilder]: At program point L260-1(line 260) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (< |old(~waterLevel~0)| 1) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= main_~tmp~0 1) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~systemActive~0)| 1))) [2023-03-31 23:53:15,320 INFO L899 garLoopResultBuilder]: For program point L258(lines 258 265) no Hoare annotation was computed. [2023-03-31 23:53:15,320 INFO L899 garLoopResultBuilder]: For program point Specification2EXIT(lines 203 226) no Hoare annotation was computed. [2023-03-31 23:53:15,320 INFO L899 garLoopResultBuilder]: For program point L221(line 221) no Hoare annotation was computed. [2023-03-31 23:53:15,320 INFO L899 garLoopResultBuilder]: For program point L220(line 220) no Hoare annotation was computed. [2023-03-31 23:53:15,321 INFO L899 garLoopResultBuilder]: For program point Specification2FINAL(lines 203 226) no Hoare annotation was computed. [2023-03-31 23:53:15,321 INFO L899 garLoopResultBuilder]: For program point L219(line 219) no Hoare annotation was computed. [2023-03-31 23:53:15,321 INFO L899 garLoopResultBuilder]: For program point L218(line 218) no Hoare annotation was computed. [2023-03-31 23:53:15,321 INFO L899 garLoopResultBuilder]: For program point L217(line 217) no Hoare annotation was computed. [2023-03-31 23:53:15,321 INFO L899 garLoopResultBuilder]: For program point L216(line 216) no Hoare annotation was computed. [2023-03-31 23:53:15,321 INFO L899 garLoopResultBuilder]: For program point L215(line 215) no Hoare annotation was computed. [2023-03-31 23:53:15,321 INFO L899 garLoopResultBuilder]: For program point L214(line 214) no Hoare annotation was computed. [2023-03-31 23:53:15,321 INFO L899 garLoopResultBuilder]: For program point L213(line 213) no Hoare annotation was computed. [2023-03-31 23:53:15,321 INFO L899 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2023-03-31 23:53:15,321 INFO L899 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2023-03-31 23:53:15,321 INFO L899 garLoopResultBuilder]: For program point L210(line 210) no Hoare annotation was computed. [2023-03-31 23:53:15,321 INFO L899 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2023-03-31 23:53:15,321 INFO L899 garLoopResultBuilder]: For program point L208(line 208) no Hoare annotation was computed. [2023-03-31 23:53:15,321 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 203 226) no Hoare annotation was computed. [2023-03-31 23:53:15,322 INFO L902 garLoopResultBuilder]: At program point L479(line 479) the Hoare annotation is: true [2023-03-31 23:53:15,322 INFO L899 garLoopResultBuilder]: For program point L479-1(line 479) no Hoare annotation was computed. [2023-03-31 23:53:15,322 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 472 490) the Hoare annotation is: true [2023-03-31 23:53:15,322 INFO L899 garLoopResultBuilder]: For program point isLowWaterLevelEXIT(lines 472 490) no Hoare annotation was computed. [2023-03-31 23:53:15,322 INFO L899 garLoopResultBuilder]: For program point select_featuresEXIT(lines 604 610) no Hoare annotation was computed. [2023-03-31 23:53:15,322 INFO L902 garLoopResultBuilder]: At program point select_featuresFINAL(lines 604 610) the Hoare annotation is: true [2023-03-31 23:53:15,322 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 947 992) no Hoare annotation was computed. [2023-03-31 23:53:15,322 INFO L899 garLoopResultBuilder]: For program point __utac__get_this_argtypeEXIT(lines 947 992) no Hoare annotation was computed. [2023-03-31 23:53:15,323 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 146 159) the Hoare annotation is: true [2023-03-31 23:53:15,323 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDryEXIT(lines 146 159) no Hoare annotation was computed. [2023-03-31 23:53:15,323 INFO L895 garLoopResultBuilder]: At program point L352(line 352) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) .cse0 (< ~waterLevel~0 2)) (or (< ~waterLevel~0 1) .cse0 (< 1 ~waterLevel~0)))) [2023-03-31 23:53:15,323 INFO L895 garLoopResultBuilder]: At program point L348(line 348) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (< ~waterLevel~0 1)) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (< 1 ~waterLevel~0))) (and (or (< 2 ~waterLevel~0) .cse0 .cse1 (< ~waterLevel~0 2)) (or .cse2 .cse1 .cse3 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= 1 processEnvironment_~tmp~2))) (or .cse0 .cse2 .cse1 .cse3))) [2023-03-31 23:53:15,323 INFO L899 garLoopResultBuilder]: For program point L346(lines 346 354) no Hoare annotation was computed. [2023-03-31 23:53:15,323 INFO L895 garLoopResultBuilder]: At program point L344(line 344) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (< ~waterLevel~0 1)) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (< 1 ~waterLevel~0))) (and (or (< 2 ~waterLevel~0) .cse0 .cse1 (< ~waterLevel~0 2)) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2 .cse1 .cse3) (or .cse0 .cse2 .cse1 .cse3))) [2023-03-31 23:53:15,323 INFO L899 garLoopResultBuilder]: For program point L344-1(line 344) no Hoare annotation was computed. [2023-03-31 23:53:15,323 INFO L899 garLoopResultBuilder]: For program point processEnvironmentEXIT(lines 338 362) no Hoare annotation was computed. [2023-03-31 23:53:15,323 INFO L899 garLoopResultBuilder]: For program point L342(lines 342 359) no Hoare annotation was computed. [2023-03-31 23:53:15,323 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 338 362) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (< ~waterLevel~0 1) .cse0 (< 1 ~waterLevel~0)) (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 (< ~waterLevel~0 2)))) [2023-03-31 23:53:15,323 INFO L895 garLoopResultBuilder]: At program point L357(line 357) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (< 1 ~waterLevel~0)) (.cse4 (= |old(~pumpRunning~0)| 0))) (and (or .cse0 .cse1 .cse2 .cse3) (or (< 2 ~waterLevel~0) (not .cse4) .cse0 .cse2 (< ~waterLevel~0 2)) (or .cse1 .cse2 .cse3 .cse4))) [2023-03-31 23:53:15,323 INFO L899 garLoopResultBuilder]: For program point L357-1(lines 338 362) no Hoare annotation was computed. [2023-03-31 23:53:15,323 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 304 310) no Hoare annotation was computed. [2023-03-31 23:53:15,323 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 304 310) the Hoare annotation is: true [2023-03-31 23:53:15,323 INFO L895 garLoopResultBuilder]: At program point L574-2(lines 566 579) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0)) (.cse1 (= 1 ~systemActive~0))) (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (< |old(~waterLevel~0)| 1) (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0) (<= ~waterLevel~0 |old(~waterLevel~0)|)) (and .cse0 (<= 2 ~waterLevel~0) .cse1 (<= ~waterLevel~0 2)) (not (= |old(~systemActive~0)| 1)))) [2023-03-31 23:53:15,324 INFO L899 garLoopResultBuilder]: For program point L537(lines 536 583) no Hoare annotation was computed. [2023-03-31 23:53:15,324 INFO L895 garLoopResultBuilder]: At program point L568(line 568) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0)) (.cse1 (= 1 ~systemActive~0))) (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (< |old(~waterLevel~0)| 1) (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0) (<= ~waterLevel~0 |old(~waterLevel~0)|)) (and .cse0 (<= 2 ~waterLevel~0) .cse1 (<= ~waterLevel~0 2)) (not (= |old(~systemActive~0)| 1)))) [2023-03-31 23:53:15,324 INFO L899 garLoopResultBuilder]: For program point testFINAL(lines 526 591) no Hoare annotation was computed. [2023-03-31 23:53:15,324 INFO L899 garLoopResultBuilder]: For program point L566(lines 566 579) no Hoare annotation was computed. [2023-03-31 23:53:15,324 INFO L895 garLoopResultBuilder]: At program point L558(line 558) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0)) (.cse1 (= 1 ~systemActive~0))) (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (< |old(~waterLevel~0)| 1) (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0) (<= ~waterLevel~0 |old(~waterLevel~0)|)) (and .cse0 (<= 2 ~waterLevel~0) .cse1 (<= ~waterLevel~0 2)) (not (= |old(~systemActive~0)| 1)))) [2023-03-31 23:53:15,324 INFO L899 garLoopResultBuilder]: For program point L556(lines 556 562) no Hoare annotation was computed. [2023-03-31 23:53:15,324 INFO L899 garLoopResultBuilder]: For program point L556-1(lines 556 562) no Hoare annotation was computed. [2023-03-31 23:53:15,324 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 526 591) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (< |old(~waterLevel~0)| 1) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2023-03-31 23:53:15,324 INFO L895 garLoopResultBuilder]: At program point L581(lines 536 583) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= test_~splverifierCounter~0 0)) (.cse3 (<= 2 ~waterLevel~0)) (.cse2 (= 1 ~systemActive~0)) (.cse4 (<= ~waterLevel~0 2))) (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (< |old(~waterLevel~0)| 1) (and .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) (<= ~waterLevel~0 |old(~waterLevel~0)|)) (not (= |old(~systemActive~0)| 1)) (and .cse1 (= ~methaneLevelCritical~0 0) .cse3 .cse2 .cse4) (and .cse0 .cse1 .cse3 .cse2 .cse4))) [2023-03-31 23:53:15,324 INFO L895 garLoopResultBuilder]: At program point L548(line 548) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= test_~splverifierCounter~0 0)) (.cse3 (<= 2 ~waterLevel~0)) (.cse2 (= 1 ~systemActive~0)) (.cse4 (<= ~waterLevel~0 2))) (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (< |old(~waterLevel~0)| 1) (and .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) (<= ~waterLevel~0 |old(~waterLevel~0)|)) (not (= |old(~systemActive~0)| 1)) (and .cse1 (= ~methaneLevelCritical~0 0) .cse3 .cse2 .cse4) (and .cse0 .cse1 .cse3 .cse2 .cse4))) [2023-03-31 23:53:15,324 INFO L899 garLoopResultBuilder]: For program point L546(lines 546 552) no Hoare annotation was computed. [2023-03-31 23:53:15,324 INFO L899 garLoopResultBuilder]: For program point L546-1(lines 546 552) no Hoare annotation was computed. [2023-03-31 23:53:15,325 INFO L895 garLoopResultBuilder]: At program point L584(lines 535 585) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (< |old(~waterLevel~0)| 1) (not (= |old(~systemActive~0)| 1))) [2023-03-31 23:53:15,325 INFO L899 garLoopResultBuilder]: For program point testEXIT(lines 526 591) no Hoare annotation was computed. [2023-03-31 23:53:15,325 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 363 370) the Hoare annotation is: (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0)) (not (= ~methaneLevelCritical~0 0)) (< ~waterLevel~0 2)) [2023-03-31 23:53:15,325 INFO L899 garLoopResultBuilder]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 363 370) no Hoare annotation was computed. [2023-03-31 23:53:15,325 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 160 168) the Hoare annotation is: true [2023-03-31 23:53:15,325 INFO L899 garLoopResultBuilder]: For program point isLowWaterSensorDryEXIT(lines 160 168) no Hoare annotation was computed. [2023-03-31 23:53:15,325 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 114 136) no Hoare annotation was computed. [2023-03-31 23:53:15,325 INFO L899 garLoopResultBuilder]: For program point printEnvironmentEXIT(lines 114 136) no Hoare annotation was computed. [2023-03-31 23:53:15,325 INFO L895 garLoopResultBuilder]: At program point L383(line 383) the Hoare annotation is: (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0)) (< ~waterLevel~0 2) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= activatePump_~tmp~3 0))) [2023-03-31 23:53:15,325 INFO L899 garLoopResultBuilder]: For program point L383-1(lines 372 388) no Hoare annotation was computed. [2023-03-31 23:53:15,325 INFO L899 garLoopResultBuilder]: For program point activatePumpEXIT(lines 372 388) no Hoare annotation was computed. [2023-03-31 23:53:15,325 INFO L899 garLoopResultBuilder]: For program point L379(lines 379 385) no Hoare annotation was computed. [2023-03-31 23:53:15,325 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 372 388) the Hoare annotation is: (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0)) (< ~waterLevel~0 2)) [2023-03-31 23:53:15,325 INFO L895 garLoopResultBuilder]: At program point L377(line 377) the Hoare annotation is: (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0)) (< ~waterLevel~0 2)) [2023-03-31 23:53:15,325 INFO L899 garLoopResultBuilder]: For program point L377-1(line 377) no Hoare annotation was computed. [2023-03-31 23:53:15,325 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 137 145) no Hoare annotation was computed. [2023-03-31 23:53:15,325 INFO L899 garLoopResultBuilder]: For program point getWaterLevelEXIT(lines 137 145) no Hoare annotation was computed. [2023-03-31 23:53:15,325 INFO L899 garLoopResultBuilder]: For program point isHighWaterLevelEXIT(lines 453 471) no Hoare annotation was computed. [2023-03-31 23:53:15,325 INFO L902 garLoopResultBuilder]: At program point L460(line 460) the Hoare annotation is: true [2023-03-31 23:53:15,326 INFO L899 garLoopResultBuilder]: For program point L460-1(line 460) no Hoare annotation was computed. [2023-03-31 23:53:15,326 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 453 471) the Hoare annotation is: true [2023-03-31 23:53:15,326 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 105 113) the Hoare annotation is: true [2023-03-31 23:53:15,326 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 105 113) no Hoare annotation was computed. [2023-03-31 23:53:15,326 INFO L895 garLoopResultBuilder]: At program point L286(line 286) the Hoare annotation is: (let ((.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (< |old(~waterLevel~0)| 2)) (.cse2 (< 2 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse2) (or (< 1 |old(~waterLevel~0)|) .cse3 (< |old(~waterLevel~0)| 1) .cse0) (or .cse3 .cse0 .cse1 .cse2))) [2023-03-31 23:53:15,326 INFO L899 garLoopResultBuilder]: For program point L284(lines 283 302) no Hoare annotation was computed. [2023-03-31 23:53:15,326 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 280 303) no Hoare annotation was computed. [2023-03-31 23:53:15,326 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 280 303) the Hoare annotation is: (let ((.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (< |old(~waterLevel~0)| 2) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1) (< 2 |old(~waterLevel~0)|)) (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (and (= ~pumpRunning~0 0) .cse1) .cse0))) [2023-03-31 23:53:15,326 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 280 303) no Hoare annotation was computed. [2023-03-31 23:53:15,326 INFO L895 garLoopResultBuilder]: At program point L293(line 293) the Hoare annotation is: (let ((.cse2 (= |old(~pumpRunning~0)| 0))) (let ((.cse4 (not .cse2)) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (< |old(~waterLevel~0)| 2) (and .cse1 .cse2 .cse3) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse4 (<= ~waterLevel~0 1) (<= 1 ~waterLevel~0)) (< 2 |old(~waterLevel~0)|)) (or (< 1 |old(~waterLevel~0)|) .cse4 (< |old(~waterLevel~0)| 1) (and .cse1 .cse3) .cse0)))) [2023-03-31 23:53:15,326 INFO L895 garLoopResultBuilder]: At program point L291(lines 291 297) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse8 (= 1 ~systemActive~0)) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse9 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (not .cse9)) (.cse4 (and (= ~methaneLevelCritical~0 0) .cse2)) (.cse3 (not .cse8)) (.cse5 (< |old(~waterLevel~0)| 2)) (.cse6 (< 2 |old(~waterLevel~0)|)) (.cse7 (and .cse1 (<= 2 ~waterLevel~0) .cse8 .cse9 .cse2))) (and (or (< 1 |old(~waterLevel~0)|) .cse0 (< |old(~waterLevel~0)| 1) (and .cse1 .cse2) .cse3) (or .cse4 .cse0 .cse3 .cse5 .cse6 .cse7) (or .cse4 .cse3 .cse5 (and .cse1 (<= ~waterLevel~0 1) (<= 1 ~waterLevel~0)) .cse6 .cse7)))) [2023-03-31 23:53:15,326 INFO L899 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2023-03-31 23:53:15,327 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 172 201) no Hoare annotation was computed. [2023-03-31 23:53:15,327 INFO L899 garLoopResultBuilder]: For program point L186(lines 186 190) no Hoare annotation was computed. [2023-03-31 23:53:15,327 INFO L902 garLoopResultBuilder]: At program point L186-1(lines 186 190) the Hoare annotation is: true [2023-03-31 23:53:15,327 INFO L902 garLoopResultBuilder]: At program point L182-2(lines 182 196) the Hoare annotation is: true [2023-03-31 23:53:15,327 INFO L902 garLoopResultBuilder]: At program point L178(line 178) the Hoare annotation is: true [2023-03-31 23:53:15,327 INFO L899 garLoopResultBuilder]: For program point L178-1(line 178) no Hoare annotation was computed. [2023-03-31 23:53:15,327 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 172 201) the Hoare annotation is: true [2023-03-31 23:53:15,327 INFO L902 garLoopResultBuilder]: At program point L197(lines 172 201) the Hoare annotation is: true [2023-03-31 23:53:15,327 INFO L899 garLoopResultBuilder]: For program point lowerWaterLevelEXIT(lines 69 80) no Hoare annotation was computed. [2023-03-31 23:53:15,327 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 69 80) the Hoare annotation is: (or (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0)) (< |old(~waterLevel~0)| 2) (= |old(~waterLevel~0)| ~waterLevel~0) (< 2 |old(~waterLevel~0)|)) [2023-03-31 23:53:15,327 INFO L899 garLoopResultBuilder]: For program point startSystemEXIT(lines 491 498) no Hoare annotation was computed. [2023-03-31 23:53:15,327 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 491 498) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (not (= |old(~systemActive~0)| 1)))) (and (or (< 2 ~waterLevel~0) .cse0 .cse1 (< ~waterLevel~0 2)) (or (not (= ~pumpRunning~0 0)) (< ~waterLevel~0 1) (< 1 ~waterLevel~0) .cse0 .cse1))) [2023-03-31 23:53:15,327 INFO L899 garLoopResultBuilder]: For program point L320(lines 320 328) no Hoare annotation was computed. [2023-03-31 23:53:15,327 INFO L895 garLoopResultBuilder]: At program point L318(line 318) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or (< 2 ~waterLevel~0) .cse0 .cse1 .cse2 (< ~waterLevel~0 2)) (or .cse0 .cse1 (< ~waterLevel~0 1) .cse2 (< 1 ~waterLevel~0)))) [2023-03-31 23:53:15,327 INFO L899 garLoopResultBuilder]: For program point L318-1(line 318) no Hoare annotation was computed. [2023-03-31 23:53:15,327 INFO L899 garLoopResultBuilder]: For program point L316(lines 316 333) no Hoare annotation was computed. [2023-03-31 23:53:15,328 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 312 336) no Hoare annotation was computed. [2023-03-31 23:53:15,328 INFO L895 garLoopResultBuilder]: At program point L331(line 331) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or (< 2 ~waterLevel~0) .cse0 .cse1 (< ~waterLevel~0 2)) (or .cse0 (< ~waterLevel~0 1) .cse1 (< 1 ~waterLevel~0)))) [2023-03-31 23:53:15,328 INFO L899 garLoopResultBuilder]: For program point L331-1(lines 312 336) no Hoare annotation was computed. [2023-03-31 23:53:15,328 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 312 336) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or (< 2 ~waterLevel~0) .cse0 .cse1 .cse2 (< ~waterLevel~0 2)) (or .cse0 .cse1 (< ~waterLevel~0 1) .cse2 (< 1 ~waterLevel~0)))) [2023-03-31 23:53:15,328 INFO L895 garLoopResultBuilder]: At program point L326(line 326) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or (< 2 ~waterLevel~0) .cse0 .cse1 (< ~waterLevel~0 2)) (or .cse0 (< ~waterLevel~0 1) .cse1 (< 1 ~waterLevel~0) (and (= ~pumpRunning~0 0) (= processEnvironment__wrappee__highWaterSensor_~tmp~1 0))))) [2023-03-31 23:53:15,328 INFO L895 garLoopResultBuilder]: At program point L322(line 322) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or (< 2 ~waterLevel~0) .cse0 .cse1 (and (= ~pumpRunning~0 0) (= processEnvironment__wrappee__highWaterSensor_~tmp~1 1)) (< ~waterLevel~0 2)) (or .cse0 (< ~waterLevel~0 1) .cse1 (< 1 ~waterLevel~0)))) [2023-03-31 23:53:15,328 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 81 92) no Hoare annotation was computed. [2023-03-31 23:53:15,328 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 81 92) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (< |old(~waterLevel~0)| 2)) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (< 2 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or (< 1 |old(~waterLevel~0)|) (< |old(~waterLevel~0)| 1) .cse0 .cse1 .cse3) (or .cse1 .cse2 (not (= ~methaneLevelCritical~0 0)) .cse3 .cse4))) [2023-03-31 23:53:15,329 INFO L902 garLoopResultBuilder]: At program point ERROR(lines 50 57) the Hoare annotation is: true [2023-03-31 23:53:15,329 INFO L899 garLoopResultBuilder]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2023-03-31 23:53:15,329 INFO L899 garLoopResultBuilder]: For program point __automaton_failEXIT(lines 50 57) no Hoare annotation was computed. [2023-03-31 23:53:15,329 INFO L902 garLoopResultBuilder]: At program point select_helpersFINAL(lines 611 617) the Hoare annotation is: true [2023-03-31 23:53:15,330 INFO L899 garLoopResultBuilder]: For program point select_helpersEXIT(lines 611 617) no Hoare annotation was computed. [2023-03-31 23:53:15,330 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 408 416) no Hoare annotation was computed. [2023-03-31 23:53:15,330 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 408 416) the Hoare annotation is: true [2023-03-31 23:53:15,330 INFO L899 garLoopResultBuilder]: For program point L447(line 447) no Hoare annotation was computed. [2023-03-31 23:53:15,330 INFO L899 garLoopResultBuilder]: For program point L447-1(line 447) no Hoare annotation was computed. [2023-03-31 23:53:15,330 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 417 452) no Hoare annotation was computed. [2023-03-31 23:53:15,330 INFO L899 garLoopResultBuilder]: For program point printPumpEXIT(lines 417 452) no Hoare annotation was computed. [2023-03-31 23:53:15,330 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_setEXIT(lines 634 679) no Hoare annotation was computed. [2023-03-31 23:53:15,330 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 634 679) no Hoare annotation was computed. [2023-03-31 23:53:15,330 INFO L899 garLoopResultBuilder]: For program point runTestEXIT(lines 235 244) no Hoare annotation was computed. [2023-03-31 23:53:15,330 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 235 244) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (< |old(~waterLevel~0)| 1) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2023-03-31 23:53:15,330 INFO L899 garLoopResultBuilder]: For program point runTestFINAL(lines 235 244) no Hoare annotation was computed. [2023-03-31 23:53:15,330 INFO L899 garLoopResultBuilder]: For program point L402-1(line 402) no Hoare annotation was computed. [2023-03-31 23:53:15,330 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 397 407) no Hoare annotation was computed. [2023-03-31 23:53:15,330 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 397 407) the Hoare annotation is: true [2023-03-31 23:53:15,330 INFO L902 garLoopResultBuilder]: At program point L402(line 402) the Hoare annotation is: true [2023-03-31 23:53:15,330 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 389 396) no Hoare annotation was computed. [2023-03-31 23:53:15,330 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 389 396) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (< ~waterLevel~0 1) (not (= 1 ~systemActive~0)) (< 1 ~waterLevel~0) (= |old(~pumpRunning~0)| 0)) [2023-03-31 23:53:15,330 INFO L899 garLoopResultBuilder]: For program point __utac__get_this_argEXIT(lines 901 946) no Hoare annotation was computed. [2023-03-31 23:53:15,330 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 901 946) no Hoare annotation was computed. [2023-03-31 23:53:15,330 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 594 603) no Hoare annotation was computed. [2023-03-31 23:53:15,330 INFO L899 garLoopResultBuilder]: For program point select_oneEXIT(lines 594 603) no Hoare annotation was computed. [2023-03-31 23:53:15,330 INFO L899 garLoopResultBuilder]: For program point L863(line 863) no Hoare annotation was computed. [2023-03-31 23:53:15,330 INFO L899 garLoopResultBuilder]: For program point L863-1(line 863) no Hoare annotation was computed. [2023-03-31 23:53:15,331 INFO L899 garLoopResultBuilder]: For program point L822(lines 822 826) no Hoare annotation was computed. [2023-03-31 23:53:15,331 INFO L899 garLoopResultBuilder]: For program point L847-2(lines 847 867) no Hoare annotation was computed. [2023-03-31 23:53:15,331 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 798 900) no Hoare annotation was computed. [2023-03-31 23:53:15,331 INFO L899 garLoopResultBuilder]: For program point __utac__error_stack_mgtFINAL(lines 798 900) no Hoare annotation was computed. [2023-03-31 23:53:15,331 INFO L899 garLoopResultBuilder]: For program point L868(lines 846 869) no Hoare annotation was computed. [2023-03-31 23:53:15,331 INFO L899 garLoopResultBuilder]: For program point L827(lines 827 843) no Hoare annotation was computed. [2023-03-31 23:53:15,331 INFO L899 garLoopResultBuilder]: For program point __utac__error_stack_mgtEXIT(lines 798 900) no Hoare annotation was computed. [2023-03-31 23:53:15,331 INFO L899 garLoopResultBuilder]: For program point L848(lines 847 867) no Hoare annotation was computed. [2023-03-31 23:53:15,331 INFO L899 garLoopResultBuilder]: For program point L879(line 879) no Hoare annotation was computed. [2023-03-31 23:53:15,331 INFO L899 garLoopResultBuilder]: For program point L879-1(line 879) no Hoare annotation was computed. [2023-03-31 23:53:15,331 INFO L899 garLoopResultBuilder]: For program point L844(lines 844 885) no Hoare annotation was computed. [2023-03-31 23:53:15,331 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~waterLevel~0)| ~waterLevel~0)) [2023-03-31 23:53:15,331 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-03-31 23:53:15,331 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 93 104) the Hoare annotation is: true [2023-03-31 23:53:15,331 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 93 104) no Hoare annotation was computed. [2023-03-31 23:53:15,331 INFO L899 garLoopResultBuilder]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2023-03-31 23:53:15,331 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-03-31 23:53:15,331 INFO L899 garLoopResultBuilder]: For program point setupEXIT(lines 227 233) no Hoare annotation was computed. [2023-03-31 23:53:15,331 INFO L902 garLoopResultBuilder]: At program point setupFINAL(lines 227 233) the Hoare annotation is: true [2023-03-31 23:53:15,331 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-03-31 23:53:15,331 INFO L895 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (<= ~waterLevel~0 1) (= 1 ~systemActive~0) (<= 1 ~waterLevel~0)) [2023-03-31 23:53:15,331 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-03-31 23:53:15,331 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-03-31 23:53:15,331 INFO L899 garLoopResultBuilder]: For program point L512(lines 512 518) no Hoare annotation was computed. [2023-03-31 23:53:15,332 INFO L895 garLoopResultBuilder]: At program point L510(line 510) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or (not (= ~pumpRunning~0 0)) (< ~waterLevel~0 1) .cse0 (< 1 ~waterLevel~0) .cse1) (or (< 2 ~waterLevel~0) .cse0 .cse1 (< ~waterLevel~0 2)))) [2023-03-31 23:53:15,332 INFO L899 garLoopResultBuilder]: For program point L510-1(line 510) no Hoare annotation was computed. [2023-03-31 23:53:15,332 INFO L899 garLoopResultBuilder]: For program point L508(lines 508 521) no Hoare annotation was computed. [2023-03-31 23:53:15,332 INFO L899 garLoopResultBuilder]: For program point L508-1(lines 500 524) no Hoare annotation was computed. [2023-03-31 23:53:15,332 INFO L902 garLoopResultBuilder]: At program point L506(line 506) the Hoare annotation is: true [2023-03-31 23:53:15,332 INFO L899 garLoopResultBuilder]: For program point L506-1(line 506) no Hoare annotation was computed. [2023-03-31 23:53:15,332 INFO L899 garLoopResultBuilder]: For program point __utac_acc__Specification1_spec__1EXIT(lines 500 524) no Hoare annotation was computed. [2023-03-31 23:53:15,332 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 500 524) the Hoare annotation is: true [2023-03-31 23:53:15,332 INFO L895 garLoopResultBuilder]: At program point L514(line 514) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse2 (< 2 ~waterLevel~0)) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (< ~waterLevel~0 2))) (and (or .cse0 (< ~waterLevel~0 1) .cse1 (< 1 ~waterLevel~0)) (or .cse2 .cse0 .cse1 .cse3) (or .cse2 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse3))) [2023-03-31 23:53:15,334 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:53:15,336 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-03-31 23:53:15,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.03 11:53:15 BoogieIcfgContainer [2023-03-31 23:53:15,348 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-03-31 23:53:15,349 INFO L158 Benchmark]: Toolchain (without parser) took 26414.53ms. Allocated memory was 203.4MB in the beginning and 750.8MB in the end (delta: 547.4MB). Free memory was 154.5MB in the beginning and 409.3MB in the end (delta: -254.8MB). Peak memory consumption was 444.1MB. Max. memory is 8.0GB. [2023-03-31 23:53:15,349 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 203.4MB. Free memory was 149.1MB in the beginning and 148.9MB in the end (delta: 154.5kB). There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 23:53:15,349 INFO L158 Benchmark]: CACSL2BoogieTranslator took 256.31ms. Allocated memory is still 203.4MB. Free memory was 153.9MB in the beginning and 135.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-03-31 23:53:15,350 INFO L158 Benchmark]: Boogie Preprocessor took 62.41ms. Allocated memory is still 203.4MB. Free memory was 135.1MB in the beginning and 131.9MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-03-31 23:53:15,350 INFO L158 Benchmark]: RCFGBuilder took 682.56ms. Allocated memory was 203.4MB in the beginning and 288.4MB in the end (delta: 84.9MB). Free memory was 131.9MB in the beginning and 247.1MB in the end (delta: -115.2MB). Peak memory consumption was 62.1MB. Max. memory is 8.0GB. [2023-03-31 23:53:15,350 INFO L158 Benchmark]: TraceAbstraction took 25409.96ms. Allocated memory was 288.4MB in the beginning and 750.8MB in the end (delta: 462.4MB). Free memory was 246.0MB in the beginning and 409.3MB in the end (delta: -163.2MB). Peak memory consumption was 449.1MB. Max. memory is 8.0GB. [2023-03-31 23:53:15,351 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 203.4MB. Free memory was 149.1MB in the beginning and 148.9MB in the end (delta: 154.5kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 256.31ms. Allocated memory is still 203.4MB. Free memory was 153.9MB in the beginning and 135.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 62.41ms. Allocated memory is still 203.4MB. Free memory was 135.1MB in the beginning and 131.9MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 682.56ms. Allocated memory was 203.4MB in the beginning and 288.4MB in the end (delta: 84.9MB). Free memory was 131.9MB in the beginning and 247.1MB in the end (delta: -115.2MB). Peak memory consumption was 62.1MB. Max. memory is 8.0GB. * TraceAbstraction took 25409.96ms. Allocated memory was 288.4MB in the beginning and 750.8MB in the end (delta: 462.4MB). Free memory was 246.0MB in the beginning and 409.3MB in the end (delta: -163.2MB). Peak memory consumption was 449.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 54]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 195 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 25.3s, OverallIterations: 9, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2117 SdHoareTripleChecker+Valid, 4.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2062 mSDsluCounter, 3335 SdHoareTripleChecker+Invalid, 3.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2572 mSDsCounter, 1529 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9245 IncrementalHoareTripleChecker+Invalid, 10774 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1529 mSolverCounterUnsat, 763 mSDtfsCounter, 9245 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1433 GetRequests, 1091 SyntacticMatches, 41 SemanticMatches, 301 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13801 ImplicationChecksByTransitivity, 9.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1174occurred in iteration=8, InterpolantAutomatonStates: 115, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 290 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 65 LocationsWithAnnotation, 1537 PreInvPairs, 1633 NumberOfFragments, 1528 HoareAnnotationTreeSize, 1537 FomulaSimplifications, 14590 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 65 FomulaSimplificationsInter, 8753 FormulaSimplificationTreeSizeReductionInter, 1.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.6s InterpolantComputationTime, 1331 NumberOfCodeBlocks, 1331 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1683 ConstructedInterpolants, 0 QuantifiedInterpolants, 4150 SizeOfPredicates, 30 NumberOfNonLiveVariables, 1724 ConjunctsInSsa, 145 ConjunctsInUnsatCore, 14 InterpolantComputations, 7 PerfectInterpolantSequences, 682/791 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 536]: Loop Invariant Derived loop invariant: ((((((1 < \old(waterLevel) || !(\old(pumpRunning) == 0)) || !(\old(methaneLevelCritical) == 0)) || \old(waterLevel) < 1) || ((((pumpRunning == 0 && splverifierCounter == 0) && 1 == systemActive) && 1 <= waterLevel) && waterLevel <= \old(waterLevel))) || !(\old(systemActive) == 1)) || ((((splverifierCounter == 0 && methaneLevelCritical == 0) && 2 <= waterLevel) && 1 == systemActive) && waterLevel <= 2)) || ((((pumpRunning == 0 && splverifierCounter == 0) && 2 <= waterLevel) && 1 == systemActive) && waterLevel <= 2) - InvariantResult [Line: 535]: Loop Invariant Derived loop invariant: (((1 < \old(waterLevel) || !(\old(pumpRunning) == 0)) || !(\old(methaneLevelCritical) == 0)) || \old(waterLevel) < 1) || !(\old(systemActive) == 1) - InvariantResult [Line: 172]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 182]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-03-31 23:53:15,377 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...