/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_spec4_product58.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 23:57:59,924 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 23:57:59,926 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 23:57:59,962 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 23:57:59,963 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 23:57:59,966 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 23:57:59,969 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 23:57:59,971 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 23:57:59,973 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 23:57:59,978 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 23:57:59,980 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 23:57:59,982 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 23:57:59,982 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 23:57:59,984 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 23:57:59,985 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 23:57:59,986 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 23:57:59,986 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 23:57:59,987 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 23:57:59,989 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 23:57:59,995 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 23:57:59,996 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 23:57:59,997 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 23:57:59,998 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 23:57:59,999 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 23:58:00,005 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 23:58:00,006 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 23:58:00,006 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 23:58:00,007 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 23:58:00,007 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 23:58:00,007 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 23:58:00,008 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 23:58:00,008 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 23:58:00,009 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 23:58:00,009 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 23:58:00,010 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 23:58:00,010 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 23:58:00,011 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 23:58:00,011 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 23:58:00,011 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 23:58:00,012 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 23:58:00,012 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 23:58:00,015 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 23:58:00,045 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 23:58:00,045 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 23:58:00,046 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 23:58:00,046 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 23:58:00,047 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 23:58:00,047 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 23:58:00,047 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 23:58:00,047 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 23:58:00,047 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 23:58:00,048 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 23:58:00,048 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 23:58:00,048 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 23:58:00,049 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 23:58:00,049 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 23:58:00,049 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 23:58:00,049 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 23:58:00,049 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 23:58:00,049 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 23:58:00,050 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 23:58:00,050 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 23:58:00,050 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 23:58:00,050 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 23:58:00,050 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 23:58:00,050 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 23:58:00,050 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 23:58:00,051 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 23:58:00,051 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 23:58:00,051 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 23:58:00,051 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 23:58:00,051 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 23:58:00,051 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 23:58:00,051 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 23:58:00,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 23:58:00,052 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 23:58:00,052 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 23:58:00,052 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 23:58:00,052 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 23:58:00,052 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 23:58:00,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 23:58:00,052 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 23:58:00,052 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 23:58:00,053 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-03-31 23:58:00,284 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 23:58:00,307 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 23:58:00,309 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 23:58:00,310 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 23:58:00,311 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 23:58:00,312 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c [2023-03-31 23:58:01,431 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 23:58:01,701 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 23:58:01,701 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c [2023-03-31 23:58:01,714 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc7b0e2d6/dc9e76ee55c74fa185cec2e6acc693e3/FLAG5b7006d7a [2023-03-31 23:58:01,726 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc7b0e2d6/dc9e76ee55c74fa185cec2e6acc693e3 [2023-03-31 23:58:01,728 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 23:58:01,729 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 23:58:01,732 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 23:58:01,732 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 23:58:01,735 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 23:58:01,736 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 11:58:01" (1/1) ... [2023-03-31 23:58:01,737 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77c620e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:58:01, skipping insertion in model container [2023-03-31 23:58:01,737 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 11:58:01" (1/1) ... [2023-03-31 23:58:01,743 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 23:58:01,779 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 23:58:01,950 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c[11718,11731] [2023-03-31 23:58:01,994 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 23:58:02,004 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 23:58:02,039 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c[11718,11731] [2023-03-31 23:58:02,054 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 23:58:02,070 INFO L208 MainTranslator]: Completed translation [2023-03-31 23:58:02,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:58:02 WrapperNode [2023-03-31 23:58:02,070 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 23:58:02,071 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 23:58:02,071 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 23:58:02,071 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 23:58:02,079 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:58:02" (1/1) ... [2023-03-31 23:58:02,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:58:02" (1/1) ... [2023-03-31 23:58:02,090 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:58:02" (1/1) ... [2023-03-31 23:58:02,091 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:58:02" (1/1) ... [2023-03-31 23:58:02,110 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:58:02" (1/1) ... [2023-03-31 23:58:02,117 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:58:02" (1/1) ... [2023-03-31 23:58:02,120 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:58:02" (1/1) ... [2023-03-31 23:58:02,123 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:58:02" (1/1) ... [2023-03-31 23:58:02,128 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 23:58:02,129 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 23:58:02,129 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 23:58:02,129 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 23:58:02,130 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:58:02" (1/1) ... [2023-03-31 23:58:02,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 23:58:02,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:58:02,174 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 23:58:02,188 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 23:58:02,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 23:58:02,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 23:58:02,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-03-31 23:58:02,219 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 23:58:02,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-03-31 23:58:02,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-03-31 23:58:02,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-03-31 23:58:02,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-03-31 23:58:02,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-03-31 23:58:02,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-03-31 23:58:02,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2023-03-31 23:58:02,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-03-31 23:58:02,221 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-03-31 23:58:02,221 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-03-31 23:58:02,221 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-03-31 23:58:02,221 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-03-31 23:58:02,221 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-03-31 23:58:02,221 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-03-31 23:58:02,221 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2023-03-31 23:58:02,221 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2023-03-31 23:58:02,221 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-03-31 23:58:02,222 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-03-31 23:58:02,222 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-03-31 23:58:02,222 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-03-31 23:58:02,222 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 23:58:02,222 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-03-31 23:58:02,222 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-03-31 23:58:02,222 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-03-31 23:58:02,223 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-03-31 23:58:02,223 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-03-31 23:58:02,223 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-03-31 23:58:02,223 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-03-31 23:58:02,223 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-03-31 23:58:02,223 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2023-03-31 23:58:02,223 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-03-31 23:58:02,223 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-03-31 23:58:02,223 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-03-31 23:58:02,223 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-03-31 23:58:02,224 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-03-31 23:58:02,224 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2023-03-31 23:58:02,224 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2023-03-31 23:58:02,224 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2023-03-31 23:58:02,224 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-03-31 23:58:02,225 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 23:58:02,225 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 23:58:02,226 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 23:58:02,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 23:58:02,226 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 23:58:02,226 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-03-31 23:58:02,226 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-03-31 23:58:02,227 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-03-31 23:58:02,227 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-03-31 23:58:02,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-03-31 23:58:02,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-03-31 23:58:02,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 23:58:02,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-03-31 23:58:02,228 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-03-31 23:58:02,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 23:58:02,228 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-03-31 23:58:02,229 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-03-31 23:58:02,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 23:58:02,229 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-03-31 23:58:02,229 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-03-31 23:58:02,229 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-03-31 23:58:02,229 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-03-31 23:58:02,230 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-03-31 23:58:02,230 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-03-31 23:58:02,230 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2023-03-31 23:58:02,230 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-03-31 23:58:02,230 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-03-31 23:58:02,230 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-03-31 23:58:02,230 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-03-31 23:58:02,230 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-03-31 23:58:02,230 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2023-03-31 23:58:02,230 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2023-03-31 23:58:02,230 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-03-31 23:58:02,231 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-03-31 23:58:02,231 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-03-31 23:58:02,231 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-03-31 23:58:02,231 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-03-31 23:58:02,231 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-03-31 23:58:02,232 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-03-31 23:58:02,232 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-03-31 23:58:02,232 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-03-31 23:58:02,232 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-03-31 23:58:02,232 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 23:58:02,233 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-03-31 23:58:02,233 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-03-31 23:58:02,233 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-03-31 23:58:02,233 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2023-03-31 23:58:02,233 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-03-31 23:58:02,234 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-03-31 23:58:02,234 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2023-03-31 23:58:02,234 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-03-31 23:58:02,234 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2023-03-31 23:58:02,234 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2023-03-31 23:58:02,234 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-03-31 23:58:02,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 23:58:02,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 23:58:02,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 23:58:02,412 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 23:58:02,415 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 23:58:02,903 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 23:58:03,097 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 23:58:03,097 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-03-31 23:58:03,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 11:58:03 BoogieIcfgContainer [2023-03-31 23:58:03,102 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 23:58:03,104 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 23:58:03,104 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 23:58:03,107 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 23:58:03,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 11:58:01" (1/3) ... [2023-03-31 23:58:03,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cd1eb63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 11:58:03, skipping insertion in model container [2023-03-31 23:58:03,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:58:02" (2/3) ... [2023-03-31 23:58:03,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cd1eb63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 11:58:03, skipping insertion in model container [2023-03-31 23:58:03,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 11:58:03" (3/3) ... [2023-03-31 23:58:03,112 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product58.cil.c [2023-03-31 23:58:03,129 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 23:58:03,130 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 23:58:03,204 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 23:58:03,210 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;@a01f8b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-03-31 23:58:03,210 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 23:58:03,214 INFO L276 IsEmpty]: Start isEmpty. Operand has 156 states, 72 states have (on average 1.25) internal successors, (90), 86 states have internal predecessors, (90), 49 states have call successors, (49), 32 states have call predecessors, (49), 32 states have return successors, (49), 45 states have call predecessors, (49), 49 states have call successors, (49) [2023-03-31 23:58:03,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-03-31 23:58:03,223 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:58:03,224 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 23:58:03,224 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:58:03,228 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:58:03,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1348255991, now seen corresponding path program 1 times [2023-03-31 23:58:03,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:58:03,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494052713] [2023-03-31 23:58:03,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:58:03,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:58:03,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:58:03,447 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 23:58:03,448 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:58:03,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494052713] [2023-03-31 23:58:03,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494052713] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:58:03,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:58:03,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-03-31 23:58:03,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47875573] [2023-03-31 23:58:03,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:58:03,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-03-31 23:58:03,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:58:03,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-03-31 23:58:03,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-03-31 23:58:03,501 INFO L87 Difference]: Start difference. First operand has 156 states, 72 states have (on average 1.25) internal successors, (90), 86 states have internal predecessors, (90), 49 states have call successors, (49), 32 states have call predecessors, (49), 32 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 23:58:03,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:58:03,602 INFO L93 Difference]: Finished difference Result 245 states and 290 transitions. [2023-03-31 23:58:03,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-31 23:58:03,606 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 23:58:03,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:58:03,616 INFO L225 Difference]: With dead ends: 245 [2023-03-31 23:58:03,616 INFO L226 Difference]: Without dead ends: 123 [2023-03-31 23:58:03,621 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 23:58:03,626 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-31 23:58:03,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 130 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-31 23:58:03,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2023-03-31 23:58:03,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2023-03-31 23:58:03,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 63 states have (on average 1.2063492063492063) internal successors, (76), 74 states have internal predecessors, (76), 34 states have call successors, (34), 30 states have call predecessors, (34), 25 states have return successors, (29), 25 states have call predecessors, (29), 29 states have call successors, (29) [2023-03-31 23:58:03,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 139 transitions. [2023-03-31 23:58:03,682 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 139 transitions. Word has length 42 [2023-03-31 23:58:03,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:58:03,683 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 139 transitions. [2023-03-31 23:58:03,683 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 23:58:03,684 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 139 transitions. [2023-03-31 23:58:03,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-03-31 23:58:03,689 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:58:03,689 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 23:58:03,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 23:58:03,690 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:58:03,690 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:58:03,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1852574106, now seen corresponding path program 1 times [2023-03-31 23:58:03,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:58:03,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574410616] [2023-03-31 23:58:03,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:58:03,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:58:03,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:58:03,822 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 23:58:03,823 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:58:03,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574410616] [2023-03-31 23:58:03,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574410616] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:58:03,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:58:03,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-03-31 23:58:03,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694642880] [2023-03-31 23:58:03,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:58:03,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-03-31 23:58:03,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:58:03,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-03-31 23:58:03,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-03-31 23:58:03,826 INFO L87 Difference]: Start difference. First operand 123 states and 139 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 23:58:03,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:58:03,865 INFO L93 Difference]: Finished difference Result 199 states and 224 transitions. [2023-03-31 23:58:03,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-03-31 23:58:03,865 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 23:58:03,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:58:03,867 INFO L225 Difference]: With dead ends: 199 [2023-03-31 23:58:03,867 INFO L226 Difference]: Without dead ends: 115 [2023-03-31 23:58:03,868 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 23:58:03,869 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 9 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-31 23:58:03,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 207 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-31 23:58:03,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-03-31 23:58:03,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2023-03-31 23:58:03,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 58 states have (on average 1.206896551724138) internal successors, (70), 69 states have internal predecessors, (70), 31 states have call successors, (31), 29 states have call predecessors, (31), 25 states have return successors, (27), 23 states have call predecessors, (27), 27 states have call successors, (27) [2023-03-31 23:58:03,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 128 transitions. [2023-03-31 23:58:03,880 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 128 transitions. Word has length 43 [2023-03-31 23:58:03,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:58:03,880 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 128 transitions. [2023-03-31 23:58:03,880 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 23:58:03,881 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 128 transitions. [2023-03-31 23:58:03,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-03-31 23:58:03,882 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:58:03,882 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 23:58:03,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 23:58:03,883 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:58:03,883 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:58:03,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1546998899, now seen corresponding path program 1 times [2023-03-31 23:58:03,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:58:03,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013922782] [2023-03-31 23:58:03,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:58:03,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:58:03,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:58:04,102 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 23:58:04,102 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:58:04,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013922782] [2023-03-31 23:58:04,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013922782] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:58:04,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:58:04,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-03-31 23:58:04,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658652811] [2023-03-31 23:58:04,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:58:04,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-03-31 23:58:04,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:58:04,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-03-31 23:58:04,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-03-31 23:58:04,105 INFO L87 Difference]: Start difference. First operand 115 states and 128 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 23:58:04,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:58:04,301 INFO L93 Difference]: Finished difference Result 208 states and 235 transitions. [2023-03-31 23:58:04,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-03-31 23:58:04,301 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 23:58:04,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:58:04,305 INFO L225 Difference]: With dead ends: 208 [2023-03-31 23:58:04,305 INFO L226 Difference]: Without dead ends: 115 [2023-03-31 23:58:04,309 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 23:58:04,311 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 117 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-31 23:58:04,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 308 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-31 23:58:04,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-03-31 23:58:04,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2023-03-31 23:58:04,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 58 states have (on average 1.1896551724137931) internal successors, (69), 68 states have internal predecessors, (69), 31 states have call successors, (31), 29 states have call predecessors, (31), 25 states have return successors, (27), 23 states have call predecessors, (27), 27 states have call successors, (27) [2023-03-31 23:58:04,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 127 transitions. [2023-03-31 23:58:04,333 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 127 transitions. Word has length 46 [2023-03-31 23:58:04,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:58:04,335 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 127 transitions. [2023-03-31 23:58:04,336 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 23:58:04,340 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 127 transitions. [2023-03-31 23:58:04,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-03-31 23:58:04,343 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:58:04,343 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 23:58:04,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-31 23:58:04,344 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:58:04,344 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:58:04,344 INFO L85 PathProgramCache]: Analyzing trace with hash -2092871101, now seen corresponding path program 1 times [2023-03-31 23:58:04,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:58:04,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407985397] [2023-03-31 23:58:04,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:58:04,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:58:04,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:58:04,572 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 23:58:04,572 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:58:04,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407985397] [2023-03-31 23:58:04,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407985397] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:58:04,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:58:04,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-03-31 23:58:04,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997716613] [2023-03-31 23:58:04,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:58:04,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-03-31 23:58:04,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:58:04,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-03-31 23:58:04,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-03-31 23:58:04,576 INFO L87 Difference]: Start difference. First operand 115 states and 127 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 23:58:04,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:58:04,976 INFO L93 Difference]: Finished difference Result 298 states and 346 transitions. [2023-03-31 23:58:04,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-31 23:58:04,976 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 23:58:04,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:58:04,981 INFO L225 Difference]: With dead ends: 298 [2023-03-31 23:58:04,981 INFO L226 Difference]: Without dead ends: 205 [2023-03-31 23:58:04,983 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 23:58:04,990 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 163 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-03-31 23:58:04,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 152 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-03-31 23:58:04,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2023-03-31 23:58:05,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 188. [2023-03-31 23:58:05,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 100 states have (on average 1.16) internal successors, (116), 110 states have internal predecessors, (116), 43 states have call successors, (43), 42 states have call predecessors, (43), 44 states have return successors, (47), 42 states have call predecessors, (47), 39 states have call successors, (47) [2023-03-31 23:58:05,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 206 transitions. [2023-03-31 23:58:05,027 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 206 transitions. Word has length 59 [2023-03-31 23:58:05,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:58:05,027 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 206 transitions. [2023-03-31 23:58:05,027 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 23:58:05,027 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 206 transitions. [2023-03-31 23:58:05,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-03-31 23:58:05,029 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:58:05,029 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:58:05,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-03-31 23:58:05,029 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:58:05,030 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:58:05,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1922966647, now seen corresponding path program 1 times [2023-03-31 23:58:05,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:58:05,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898060800] [2023-03-31 23:58:05,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:58:05,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:58:05,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:58:05,200 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 23:58:05,200 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:58:05,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898060800] [2023-03-31 23:58:05,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898060800] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:58:05,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:58:05,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-03-31 23:58:05,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104686059] [2023-03-31 23:58:05,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:58:05,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-03-31 23:58:05,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:58:05,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-03-31 23:58:05,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-03-31 23:58:05,205 INFO L87 Difference]: Start difference. First operand 188 states and 206 transitions. Second operand has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2023-03-31 23:58:05,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:58:05,354 INFO L93 Difference]: Finished difference Result 463 states and 524 transitions. [2023-03-31 23:58:05,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-03-31 23:58:05,354 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) Word has length 68 [2023-03-31 23:58:05,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:58:05,359 INFO L225 Difference]: With dead ends: 463 [2023-03-31 23:58:05,359 INFO L226 Difference]: Without dead ends: 297 [2023-03-31 23:58:05,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-03-31 23:58:05,361 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 69 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-31 23:58:05,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 473 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-31 23:58:05,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2023-03-31 23:58:05,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 285. [2023-03-31 23:58:05,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 156 states have (on average 1.1602564102564104) internal successors, (181), 171 states have internal predecessors, (181), 62 states have call successors, (62), 61 states have call predecessors, (62), 66 states have return successors, (73), 63 states have call predecessors, (73), 58 states have call successors, (73) [2023-03-31 23:58:05,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 316 transitions. [2023-03-31 23:58:05,398 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 316 transitions. Word has length 68 [2023-03-31 23:58:05,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:58:05,398 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 316 transitions. [2023-03-31 23:58:05,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2023-03-31 23:58:05,399 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 316 transitions. [2023-03-31 23:58:05,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-03-31 23:58:05,400 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:58:05,400 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:58:05,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-03-31 23:58:05,400 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:58:05,401 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:58:05,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1989446858, now seen corresponding path program 1 times [2023-03-31 23:58:05,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:58:05,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013454252] [2023-03-31 23:58:05,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:58:05,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:58:05,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:58:05,617 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 23:58:05,618 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:58:05,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013454252] [2023-03-31 23:58:05,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013454252] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:58:05,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:58:05,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-03-31 23:58:05,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796205211] [2023-03-31 23:58:05,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:58:05,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-03-31 23:58:05,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:58:05,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-03-31 23:58:05,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-03-31 23:58:05,620 INFO L87 Difference]: Start difference. First operand 285 states and 316 transitions. Second operand has 7 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 4 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2023-03-31 23:58:05,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:58:05,970 INFO L93 Difference]: Finished difference Result 315 states and 361 transitions. [2023-03-31 23:58:05,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-03-31 23:58:05,971 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 4 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) Word has length 71 [2023-03-31 23:58:05,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:58:05,974 INFO L225 Difference]: With dead ends: 315 [2023-03-31 23:58:05,974 INFO L226 Difference]: Without dead ends: 312 [2023-03-31 23:58:05,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2023-03-31 23:58:05,976 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 130 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-03-31 23:58:05,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 256 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-03-31 23:58:05,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2023-03-31 23:58:06,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 285. [2023-03-31 23:58:06,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 156 states have (on average 1.1538461538461537) internal successors, (180), 171 states have internal predecessors, (180), 62 states have call successors, (62), 61 states have call predecessors, (62), 66 states have return successors, (73), 63 states have call predecessors, (73), 58 states have call successors, (73) [2023-03-31 23:58:06,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 315 transitions. [2023-03-31 23:58:06,020 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 315 transitions. Word has length 71 [2023-03-31 23:58:06,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:58:06,022 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 315 transitions. [2023-03-31 23:58:06,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 4 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2023-03-31 23:58:06,022 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 315 transitions. [2023-03-31 23:58:06,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-03-31 23:58:06,024 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:58:06,024 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:58:06,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-03-31 23:58:06,025 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:58:06,025 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:58:06,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1528273924, now seen corresponding path program 1 times [2023-03-31 23:58:06,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:58:06,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054399504] [2023-03-31 23:58:06,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:58:06,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:58:06,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:58:06,360 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 23:58:06,360 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:58:06,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054399504] [2023-03-31 23:58:06,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054399504] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:58:06,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:58:06,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-03-31 23:58:06,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419097085] [2023-03-31 23:58:06,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:58:06,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-03-31 23:58:06,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:58:06,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-03-31 23:58:06,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-03-31 23:58:06,363 INFO L87 Difference]: Start difference. First operand 285 states and 315 transitions. Second operand has 14 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 3 states have call successors, (22), 3 states have call predecessors, (22), 6 states have return successors, (16), 7 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 23:58:06,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:58:06,642 INFO L93 Difference]: Finished difference Result 520 states and 600 transitions. [2023-03-31 23:58:06,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-03-31 23:58:06,643 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 3 states have call successors, (22), 3 states have call predecessors, (22), 6 states have return successors, (16), 7 states have call predecessors, (16), 3 states have call successors, (16) Word has length 84 [2023-03-31 23:58:06,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:58:06,646 INFO L225 Difference]: With dead ends: 520 [2023-03-31 23:58:06,646 INFO L226 Difference]: Without dead ends: 354 [2023-03-31 23:58:06,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2023-03-31 23:58:06,647 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 180 mSDsluCounter, 916 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 1020 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-03-31 23:58:06,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 1020 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-03-31 23:58:06,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2023-03-31 23:58:06,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 344. [2023-03-31 23:58:06,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 192 states have (on average 1.15625) internal successors, (222), 210 states have internal predecessors, (222), 74 states have call successors, (74), 73 states have call predecessors, (74), 77 states have return successors, (95), 75 states have call predecessors, (95), 70 states have call successors, (95) [2023-03-31 23:58:06,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 391 transitions. [2023-03-31 23:58:06,698 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 391 transitions. Word has length 84 [2023-03-31 23:58:06,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:58:06,698 INFO L495 AbstractCegarLoop]: Abstraction has 344 states and 391 transitions. [2023-03-31 23:58:06,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 3 states have call successors, (22), 3 states have call predecessors, (22), 6 states have return successors, (16), 7 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 23:58:06,699 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 391 transitions. [2023-03-31 23:58:06,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-03-31 23:58:06,705 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:58:06,706 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:58:06,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-03-31 23:58:06,706 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:58:06,706 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:58:06,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1890505646, now seen corresponding path program 1 times [2023-03-31 23:58:06,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:58:06,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502627330] [2023-03-31 23:58:06,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:58:06,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:58:06,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:58:07,236 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-03-31 23:58:07,237 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:58:07,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502627330] [2023-03-31 23:58:07,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502627330] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 23:58:07,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1571941522] [2023-03-31 23:58:07,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:58:07,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:58:07,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:58:07,240 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 23:58:07,263 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 23:58:07,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:58:07,387 INFO L262 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 51 conjunts are in the unsatisfiable core [2023-03-31 23:58:07,395 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 23:58:07,898 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-03-31 23:58:07,901 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 23:58:08,681 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-03-31 23:58:08,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1571941522] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 23:58:08,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [882774052] [2023-03-31 23:58:08,705 INFO L159 IcfgInterpreter]: Started Sifa with 105 locations of interest [2023-03-31 23:58:08,706 INFO L166 IcfgInterpreter]: Building call graph [2023-03-31 23:58:08,710 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-31 23:58:08,714 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-31 23:58:08,715 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-31 23:58:08,934 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 28 for LOIs [2023-03-31 23:58:08,971 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 32 for LOIs [2023-03-31 23:58:09,110 INFO L197 IcfgInterpreter]: Interpreting procedure runTest with input of size 32 for LOIs [2023-03-31 23:58:09,124 INFO L197 IcfgInterpreter]: Interpreting procedure test with input of size 32 for LOIs [2023-03-31 23:58:09,961 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 33 for LOIs [2023-03-31 23:58:09,986 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 26 for LOIs [2023-03-31 23:58:10,077 INFO L197 IcfgInterpreter]: Interpreting procedure lowerWaterLevel with input of size 26 for LOIs [2023-03-31 23:58:10,082 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment with input of size 29 for LOIs [2023-03-31 23:58:10,195 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 26 for LOIs [2023-03-31 23:58:10,316 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterLevel with input of size 22 for LOIs [2023-03-31 23:58:10,343 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterSensorDry with input of size 22 for LOIs [2023-03-31 23:58:10,349 INFO L197 IcfgInterpreter]: Interpreting procedure activatePump with input of size 34 for LOIs [2023-03-31 23:58:10,406 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 32 for LOIs [2023-03-31 23:58:10,435 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 32 for LOIs [2023-03-31 23:58:10,440 INFO L197 IcfgInterpreter]: Interpreting procedure activatePump__wrappee__lowWaterSensor with input of size 24 for LOIs [2023-03-31 23:58:10,443 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 23 for LOIs [2023-03-31 23:58:10,445 INFO L197 IcfgInterpreter]: Interpreting procedure isLowWaterLevel with input of size 23 for LOIs [2023-03-31 23:58:10,467 INFO L197 IcfgInterpreter]: Interpreting procedure isLowWaterSensorDry with input of size 23 for LOIs [2023-03-31 23:58:10,472 INFO L197 IcfgInterpreter]: Interpreting procedure setup with input of size 24 for LOIs [2023-03-31 23:58:10,474 INFO L197 IcfgInterpreter]: Interpreting procedure select_features with input of size 24 for LOIs [2023-03-31 23:58:10,476 INFO L197 IcfgInterpreter]: Interpreting procedure __utac_acc__Specification4_spec__1 with input of size 20 for LOIs [2023-03-31 23:58:10,515 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 20 for LOIs [2023-03-31 23:58:10,517 INFO L197 IcfgInterpreter]: Interpreting procedure __automaton_fail with input of size 30 for LOIs [2023-03-31 23:58:10,521 INFO L197 IcfgInterpreter]: Interpreting procedure getWaterLevel with input of size 20 for LOIs [2023-03-31 23:58:10,523 INFO L197 IcfgInterpreter]: Interpreting procedure valid_product with input of size 24 for LOIs [2023-03-31 23:58:10,526 INFO L197 IcfgInterpreter]: Interpreting procedure select_helpers with input of size 24 for LOIs [2023-03-31 23:58:10,528 INFO L180 IcfgInterpreter]: Interpretation finished [2023-03-31 23:58:14,431 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6473#(and (= ~methaneLevelCritical~0 0) (= ~head~0.offset 0) (= 1 ~systemActive~0) (= ~head~0.base 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2023-03-31 23:58:14,431 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-03-31 23:58:14,431 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 23:58:14,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 15, 17] total 36 [2023-03-31 23:58:14,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333039538] [2023-03-31 23:58:14,431 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 23:58:14,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-03-31 23:58:14,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:58:14,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-03-31 23:58:14,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=555, Invalid=6927, Unknown=0, NotChecked=0, Total=7482 [2023-03-31 23:58:14,437 INFO L87 Difference]: Start difference. First operand 344 states and 391 transitions. Second operand has 36 states, 25 states have (on average 5.44) internal successors, (136), 29 states have internal predecessors, (136), 11 states have call successors, (62), 12 states have call predecessors, (62), 18 states have return successors, (54), 18 states have call predecessors, (54), 11 states have call successors, (54) [2023-03-31 23:58:18,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:58:18,367 INFO L93 Difference]: Finished difference Result 2046 states and 2960 transitions. [2023-03-31 23:58:18,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2023-03-31 23:58:18,368 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 25 states have (on average 5.44) internal successors, (136), 29 states have internal predecessors, (136), 11 states have call successors, (62), 12 states have call predecessors, (62), 18 states have return successors, (54), 18 states have call predecessors, (54), 11 states have call successors, (54) Word has length 130 [2023-03-31 23:58:18,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:58:18,378 INFO L225 Difference]: With dead ends: 2046 [2023-03-31 23:58:18,378 INFO L226 Difference]: Without dead ends: 1815 [2023-03-31 23:58:18,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 463 GetRequests, 312 SyntacticMatches, 16 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8328 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=1591, Invalid=17041, Unknown=0, NotChecked=0, Total=18632 [2023-03-31 23:58:18,384 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 1678 mSDsluCounter, 1361 mSDsCounter, 0 mSdLazyCounter, 3926 mSolverCounterSat, 1499 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1724 SdHoareTripleChecker+Valid, 1481 SdHoareTripleChecker+Invalid, 5425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1499 IncrementalHoareTripleChecker+Valid, 3926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-03-31 23:58:18,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1724 Valid, 1481 Invalid, 5425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1499 Valid, 3926 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-03-31 23:58:18,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1815 states. [2023-03-31 23:58:18,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1815 to 1074. [2023-03-31 23:58:18,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1074 states, 600 states have (on average 1.1483333333333334) internal successors, (689), 657 states have internal predecessors, (689), 226 states have call successors, (226), 219 states have call predecessors, (226), 247 states have return successors, (328), 240 states have call predecessors, (328), 222 states have call successors, (328) [2023-03-31 23:58:18,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1074 states to 1074 states and 1243 transitions. [2023-03-31 23:58:18,495 INFO L78 Accepts]: Start accepts. Automaton has 1074 states and 1243 transitions. Word has length 130 [2023-03-31 23:58:18,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:58:18,495 INFO L495 AbstractCegarLoop]: Abstraction has 1074 states and 1243 transitions. [2023-03-31 23:58:18,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 25 states have (on average 5.44) internal successors, (136), 29 states have internal predecessors, (136), 11 states have call successors, (62), 12 states have call predecessors, (62), 18 states have return successors, (54), 18 states have call predecessors, (54), 11 states have call successors, (54) [2023-03-31 23:58:18,496 INFO L276 IsEmpty]: Start isEmpty. Operand 1074 states and 1243 transitions. [2023-03-31 23:58:18,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-03-31 23:58:18,499 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:58:18,499 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:58:18,507 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-03-31 23:58:18,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:58:18,705 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:58:18,706 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:58:18,706 INFO L85 PathProgramCache]: Analyzing trace with hash 2027051899, now seen corresponding path program 1 times [2023-03-31 23:58:18,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:58:18,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918039738] [2023-03-31 23:58:18,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:58:18,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:58:18,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:58:19,061 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-03-31 23:58:19,061 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:58:19,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918039738] [2023-03-31 23:58:19,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918039738] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 23:58:19,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733911165] [2023-03-31 23:58:19,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:58:19,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:58:19,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:58:19,065 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 23:58:19,068 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 23:58:19,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:58:19,190 INFO L262 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 33 conjunts are in the unsatisfiable core [2023-03-31 23:58:19,197 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 23:58:19,501 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:58:19,502 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-31 23:58:19,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733911165] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:58:19,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-03-31 23:58:19,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14] total 22 [2023-03-31 23:58:19,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485991987] [2023-03-31 23:58:19,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:58:19,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-03-31 23:58:19,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:58:19,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-03-31 23:58:19,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=390, Unknown=0, NotChecked=0, Total=462 [2023-03-31 23:58:19,504 INFO L87 Difference]: Start difference. First operand 1074 states and 1243 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, (30), 5 states have call predecessors, (30), 7 states have return successors, (24), 7 states have call predecessors, (24), 6 states have call successors, (24) [2023-03-31 23:58:20,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:58:20,645 INFO L93 Difference]: Finished difference Result 2352 states and 2803 transitions. [2023-03-31 23:58:20,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-03-31 23:58:20,645 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, (30), 5 states have call predecessors, (30), 7 states have return successors, (24), 7 states have call predecessors, (24), 6 states have call successors, (24) Word has length 127 [2023-03-31 23:58:20,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:58:20,652 INFO L225 Difference]: With dead ends: 2352 [2023-03-31 23:58:20,652 INFO L226 Difference]: Without dead ends: 1298 [2023-03-31 23:58:20,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 372 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=220, Invalid=1420, Unknown=0, NotChecked=0, Total=1640 [2023-03-31 23:58:20,657 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 209 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 1462 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 1574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-03-31 23:58:20,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 297 Invalid, 1574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1462 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-03-31 23:58:20,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1298 states. [2023-03-31 23:58:20,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1298 to 1283. [2023-03-31 23:58:20,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1283 states, 732 states have (on average 1.139344262295082) internal successors, (834), 794 states have internal predecessors, (834), 273 states have call successors, (273), 270 states have call predecessors, (273), 277 states have return successors, (381), 275 states have call predecessors, (381), 269 states have call successors, (381) [2023-03-31 23:58:20,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1283 states to 1283 states and 1488 transitions. [2023-03-31 23:58:20,768 INFO L78 Accepts]: Start accepts. Automaton has 1283 states and 1488 transitions. Word has length 127 [2023-03-31 23:58:20,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:58:20,770 INFO L495 AbstractCegarLoop]: Abstraction has 1283 states and 1488 transitions. [2023-03-31 23:58:20,770 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, (30), 5 states have call predecessors, (30), 7 states have return successors, (24), 7 states have call predecessors, (24), 6 states have call successors, (24) [2023-03-31 23:58:20,770 INFO L276 IsEmpty]: Start isEmpty. Operand 1283 states and 1488 transitions. [2023-03-31 23:58:20,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-03-31 23:58:20,772 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:58:20,772 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-03-31 23:58:20,783 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 23:58:20,983 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,SelfDestructingSolverStorable8 [2023-03-31 23:58:20,984 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:58:20,984 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:58:20,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1755631144, now seen corresponding path program 2 times [2023-03-31 23:58:20,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:58:20,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792572766] [2023-03-31 23:58:20,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:58:20,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:58:21,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:58:21,620 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 35 proven. 18 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-03-31 23:58:21,620 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:58:21,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792572766] [2023-03-31 23:58:21,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792572766] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 23:58:21,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [252075202] [2023-03-31 23:58:21,621 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-03-31 23:58:21,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:58:21,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:58:21,622 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 23:58:21,625 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 23:58:21,752 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-03-31 23:58:21,752 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-03-31 23:58:21,754 INFO L262 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 43 conjunts are in the unsatisfiable core [2023-03-31 23:58:21,759 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 23:58:22,208 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-03-31 23:58:22,208 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-31 23:58:22,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [252075202] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:58:22,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-03-31 23:58:22,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [17] total 27 [2023-03-31 23:58:22,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091479094] [2023-03-31 23:58:22,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:58:22,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-03-31 23:58:22,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:58:22,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-03-31 23:58:22,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=601, Unknown=0, NotChecked=0, Total=702 [2023-03-31 23:58:22,210 INFO L87 Difference]: Start difference. First operand 1283 states and 1488 transitions. Second operand has 12 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (38), 4 states have call predecessors, (38), 6 states have return successors, (34), 6 states have call predecessors, (34), 4 states have call successors, (34) [2023-03-31 23:58:22,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:58:22,925 INFO L93 Difference]: Finished difference Result 2567 states and 2966 transitions. [2023-03-31 23:58:22,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-03-31 23:58:22,926 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (38), 4 states have call predecessors, (38), 6 states have return successors, (34), 6 states have call predecessors, (34), 4 states have call successors, (34) Word has length 176 [2023-03-31 23:58:22,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:58:22,932 INFO L225 Difference]: With dead ends: 2567 [2023-03-31 23:58:22,933 INFO L226 Difference]: Without dead ends: 1281 [2023-03-31 23:58:22,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=156, Invalid=836, Unknown=0, NotChecked=0, Total=992 [2023-03-31 23:58:22,938 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 101 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 1005 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 1013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-03-31 23:58:22,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 741 Invalid, 1013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1005 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-03-31 23:58:22,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1281 states. [2023-03-31 23:58:23,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1281 to 1257. [2023-03-31 23:58:23,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 718 states have (on average 1.126740947075209) internal successors, (809), 776 states have internal predecessors, (809), 268 states have call successors, (268), 264 states have call predecessors, (268), 270 states have return successors, (347), 268 states have call predecessors, (347), 264 states have call successors, (347) [2023-03-31 23:58:23,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 1424 transitions. [2023-03-31 23:58:23,047 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 1424 transitions. Word has length 176 [2023-03-31 23:58:23,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:58:23,048 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 1424 transitions. [2023-03-31 23:58:23,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (38), 4 states have call predecessors, (38), 6 states have return successors, (34), 6 states have call predecessors, (34), 4 states have call successors, (34) [2023-03-31 23:58:23,048 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 1424 transitions. [2023-03-31 23:58:23,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2023-03-31 23:58:23,051 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:58:23,051 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:58:23,056 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 23:58:23,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:58:23,257 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:58:23,257 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:58:23,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1754354633, now seen corresponding path program 1 times [2023-03-31 23:58:23,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:58:23,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065658967] [2023-03-31 23:58:23,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:58:23,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:58:23,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:58:24,068 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 64 proven. 35 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2023-03-31 23:58:24,069 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:58:24,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065658967] [2023-03-31 23:58:24,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065658967] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 23:58:24,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2098398368] [2023-03-31 23:58:24,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:58:24,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:58:24,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:58:24,071 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 23:58:24,073 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-03-31 23:58:24,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:58:24,234 INFO L262 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 58 conjunts are in the unsatisfiable core [2023-03-31 23:58:24,245 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 23:58:24,653 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 127 proven. 14 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2023-03-31 23:58:24,653 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 23:58:26,232 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 78 proven. 8 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2023-03-31 23:58:26,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2098398368] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 23:58:26,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [44984399] [2023-03-31 23:58:26,236 INFO L159 IcfgInterpreter]: Started Sifa with 108 locations of interest [2023-03-31 23:58:26,236 INFO L166 IcfgInterpreter]: Building call graph [2023-03-31 23:58:26,236 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-31 23:58:26,237 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-31 23:58:26,237 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-31 23:58:26,355 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 28 for LOIs [2023-03-31 23:58:26,381 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 32 for LOIs [2023-03-31 23:58:26,479 INFO L197 IcfgInterpreter]: Interpreting procedure runTest with input of size 32 for LOIs [2023-03-31 23:58:26,488 INFO L197 IcfgInterpreter]: Interpreting procedure test with input of size 32 for LOIs [2023-03-31 23:58:26,969 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 33 for LOIs [2023-03-31 23:58:26,975 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 26 for LOIs [2023-03-31 23:58:27,035 INFO L197 IcfgInterpreter]: Interpreting procedure lowerWaterLevel with input of size 26 for LOIs [2023-03-31 23:58:27,038 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment with input of size 29 for LOIs [2023-03-31 23:58:27,134 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 26 for LOIs [2023-03-31 23:58:27,204 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterLevel with input of size 22 for LOIs [2023-03-31 23:58:27,225 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterSensorDry with input of size 22 for LOIs [2023-03-31 23:58:27,230 INFO L197 IcfgInterpreter]: Interpreting procedure activatePump with input of size 34 for LOIs [2023-03-31 23:58:27,270 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 32 for LOIs [2023-03-31 23:58:27,289 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 32 for LOIs [2023-03-31 23:58:27,292 INFO L197 IcfgInterpreter]: Interpreting procedure activatePump__wrappee__lowWaterSensor with input of size 24 for LOIs [2023-03-31 23:58:27,298 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 23 for LOIs [2023-03-31 23:58:27,300 INFO L197 IcfgInterpreter]: Interpreting procedure isLowWaterLevel with input of size 23 for LOIs [2023-03-31 23:58:27,317 INFO L197 IcfgInterpreter]: Interpreting procedure isLowWaterSensorDry with input of size 23 for LOIs [2023-03-31 23:58:27,320 INFO L197 IcfgInterpreter]: Interpreting procedure deactivatePump with input of size 33 for LOIs [2023-03-31 23:58:27,323 INFO L197 IcfgInterpreter]: Interpreting procedure setup with input of size 24 for LOIs [2023-03-31 23:58:27,330 INFO L197 IcfgInterpreter]: Interpreting procedure select_features with input of size 24 for LOIs [2023-03-31 23:58:27,332 INFO L197 IcfgInterpreter]: Interpreting procedure __utac_acc__Specification4_spec__1 with input of size 20 for LOIs [2023-03-31 23:58:27,360 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 20 for LOIs [2023-03-31 23:58:27,362 INFO L197 IcfgInterpreter]: Interpreting procedure __automaton_fail with input of size 30 for LOIs [2023-03-31 23:58:27,365 INFO L197 IcfgInterpreter]: Interpreting procedure getWaterLevel with input of size 20 for LOIs [2023-03-31 23:58:27,367 INFO L197 IcfgInterpreter]: Interpreting procedure valid_product with input of size 24 for LOIs [2023-03-31 23:58:27,369 INFO L197 IcfgInterpreter]: Interpreting procedure select_helpers with input of size 24 for LOIs [2023-03-31 23:58:27,370 INFO L180 IcfgInterpreter]: Interpretation finished [2023-03-31 23:58:31,676 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '24228#(and (= ~methaneLevelCritical~0 0) (= ~head~0.offset 0) (= 1 ~systemActive~0) (= ~head~0.base 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2023-03-31 23:58:31,676 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-03-31 23:58:31,676 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 23:58:31,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 21, 18] total 49 [2023-03-31 23:58:31,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469113659] [2023-03-31 23:58:31,676 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 23:58:31,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2023-03-31 23:58:31,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:58:31,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2023-03-31 23:58:31,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=646, Invalid=9454, Unknown=0, NotChecked=0, Total=10100 [2023-03-31 23:58:31,681 INFO L87 Difference]: Start difference. First operand 1257 states and 1424 transitions. Second operand has 49 states, 35 states have (on average 5.2) internal successors, (182), 36 states have internal predecessors, (182), 13 states have call successors, (74), 9 states have call predecessors, (74), 25 states have return successors, (76), 25 states have call predecessors, (76), 13 states have call successors, (76) [2023-03-31 23:58:33,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:58:33,362 INFO L93 Difference]: Finished difference Result 1530 states and 1760 transitions. [2023-03-31 23:58:33,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-03-31 23:58:33,363 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 35 states have (on average 5.2) internal successors, (182), 36 states have internal predecessors, (182), 13 states have call successors, (74), 9 states have call predecessors, (74), 25 states have return successors, (76), 25 states have call predecessors, (76), 13 states have call successors, (76) Word has length 227 [2023-03-31 23:58:33,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:58:33,365 INFO L225 Difference]: With dead ends: 1530 [2023-03-31 23:58:33,365 INFO L226 Difference]: Without dead ends: 0 [2023-03-31 23:58:33,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 735 GetRequests, 583 SyntacticMatches, 30 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8623 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=1134, Invalid=14118, Unknown=0, NotChecked=0, Total=15252 [2023-03-31 23:58:33,375 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 490 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 2497 mSolverCounterSat, 467 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 2964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 467 IncrementalHoareTripleChecker+Valid, 2497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-03-31 23:58:33,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [494 Valid, 679 Invalid, 2964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [467 Valid, 2497 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-03-31 23:58:33,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-03-31 23:58:33,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-03-31 23:58:33,376 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 23:58:33,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-03-31 23:58:33,377 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 227 [2023-03-31 23:58:33,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:58:33,377 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-03-31 23:58:33,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 35 states have (on average 5.2) internal successors, (182), 36 states have internal predecessors, (182), 13 states have call successors, (74), 9 states have call predecessors, (74), 25 states have return successors, (76), 25 states have call predecessors, (76), 13 states have call successors, (76) [2023-03-31 23:58:33,378 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-03-31 23:58:33,378 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-03-31 23:58:33,383 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-03-31 23:58:33,391 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-03-31 23:58:33,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:58:33,592 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-03-31 23:58:36,295 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 11) no Hoare annotation was computed. [2023-03-31 23:58:36,295 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 11) no Hoare annotation was computed. [2023-03-31 23:58:36,295 INFO L899 garLoopResultBuilder]: For program point L127-2(lines 127 148) no Hoare annotation was computed. [2023-03-31 23:58:36,295 INFO L899 garLoopResultBuilder]: For program point L149(lines 126 150) no Hoare annotation was computed. [2023-03-31 23:58:36,295 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 102 157) no Hoare annotation was computed. [2023-03-31 23:58:36,295 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_freeEXIT(lines 102 157) no Hoare annotation was computed. [2023-03-31 23:58:36,296 INFO L899 garLoopResultBuilder]: For program point L133(lines 133 137) no Hoare annotation was computed. [2023-03-31 23:58:36,296 INFO L899 garLoopResultBuilder]: For program point L190(lines 190 194) no Hoare annotation was computed. [2023-03-31 23:58:36,296 INFO L899 garLoopResultBuilder]: For program point L184-2(lines 184 209) no Hoare annotation was computed. [2023-03-31 23:58:36,296 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_resetFINAL(lines 158 217) no Hoare annotation was computed. [2023-03-31 23:58:36,296 INFO L899 garLoopResultBuilder]: For program point L210(lines 183 211) no Hoare annotation was computed. [2023-03-31 23:58:36,296 INFO L899 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2023-03-31 23:58:36,296 INFO L899 garLoopResultBuilder]: For program point L203-1(line 203) no Hoare annotation was computed. [2023-03-31 23:58:36,296 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_resetEXIT(lines 158 217) no Hoare annotation was computed. [2023-03-31 23:58:36,296 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 158 217) no Hoare annotation was computed. [2023-03-31 23:58:36,296 INFO L899 garLoopResultBuilder]: For program point valid_productEXIT(lines 691 699) no Hoare annotation was computed. [2023-03-31 23:58:36,296 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 691 699) the Hoare annotation is: true [2023-03-31 23:58:36,296 INFO L899 garLoopResultBuilder]: For program point __utac_acc__Specification4_spec__1EXIT(lines 419 443) no Hoare annotation was computed. [2023-03-31 23:58:36,297 INFO L895 garLoopResultBuilder]: At program point L433(line 433) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (< 2 ~waterLevel~0) .cse0 (< ~waterLevel~0 2)) (or (not (= ~pumpRunning~0 0)) (< ~waterLevel~0 1) .cse0 (< 1 ~waterLevel~0)))) [2023-03-31 23:58:36,297 INFO L899 garLoopResultBuilder]: For program point L431(lines 431 437) no Hoare annotation was computed. [2023-03-31 23:58:36,297 INFO L895 garLoopResultBuilder]: At program point L429(line 429) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (< 2 ~waterLevel~0) .cse0 (< ~waterLevel~0 2)) (or (not (= ~pumpRunning~0 0)) (< ~waterLevel~0 1) .cse0 (< 1 ~waterLevel~0)))) [2023-03-31 23:58:36,297 INFO L899 garLoopResultBuilder]: For program point L429-1(line 429) no Hoare annotation was computed. [2023-03-31 23:58:36,297 INFO L899 garLoopResultBuilder]: For program point L427(lines 427 440) no Hoare annotation was computed. [2023-03-31 23:58:36,297 INFO L899 garLoopResultBuilder]: For program point L427-1(lines 419 443) no Hoare annotation was computed. [2023-03-31 23:58:36,297 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 419 443) the Hoare annotation is: true [2023-03-31 23:58:36,297 INFO L902 garLoopResultBuilder]: At program point L425(line 425) the Hoare annotation is: true [2023-03-31 23:58:36,297 INFO L899 garLoopResultBuilder]: For program point L425-1(line 425) no Hoare annotation was computed. [2023-03-31 23:58:36,297 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 642 664) no Hoare annotation was computed. [2023-03-31 23:58:36,297 INFO L895 garLoopResultBuilder]: At program point L654(line 654) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0) (= main_~tmp~4 1))) [2023-03-31 23:58:36,298 INFO L895 garLoopResultBuilder]: At program point L654-1(line 654) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0) (= main_~tmp~4 1))) [2023-03-31 23:58:36,298 INFO L899 garLoopResultBuilder]: For program point L652(lines 652 659) no Hoare annotation was computed. [2023-03-31 23:58:36,298 INFO L899 garLoopResultBuilder]: For program point L652-1(lines 652 659) no Hoare annotation was computed. [2023-03-31 23:58:36,298 INFO L899 garLoopResultBuilder]: For program point L650(line 650) no Hoare annotation was computed. [2023-03-31 23:58:36,298 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 642 664) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (not (= |old(~systemActive~0)| 1))) [2023-03-31 23:58:36,298 INFO L895 garLoopResultBuilder]: At program point L649(line 649) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (not (= |old(~systemActive~0)| 1))) [2023-03-31 23:58:36,298 INFO L895 garLoopResultBuilder]: At program point L648(line 648) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (not (= |old(~systemActive~0)| 1))) [2023-03-31 23:58:36,298 INFO L895 garLoopResultBuilder]: At program point L648-1(line 648) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (not (= |old(~systemActive~0)| 1))) [2023-03-31 23:58:36,298 INFO L899 garLoopResultBuilder]: For program point L609(line 609) no Hoare annotation was computed. [2023-03-31 23:58:36,298 INFO L899 garLoopResultBuilder]: For program point L608(line 608) no Hoare annotation was computed. [2023-03-31 23:58:36,298 INFO L899 garLoopResultBuilder]: For program point Specification2EXIT(lines 597 620) no Hoare annotation was computed. [2023-03-31 23:58:36,298 INFO L899 garLoopResultBuilder]: For program point L607(line 607) no Hoare annotation was computed. [2023-03-31 23:58:36,298 INFO L899 garLoopResultBuilder]: For program point L606(line 606) no Hoare annotation was computed. [2023-03-31 23:58:36,299 INFO L899 garLoopResultBuilder]: For program point L605(line 605) no Hoare annotation was computed. [2023-03-31 23:58:36,299 INFO L899 garLoopResultBuilder]: For program point L604(line 604) no Hoare annotation was computed. [2023-03-31 23:58:36,299 INFO L899 garLoopResultBuilder]: For program point Specification2FINAL(lines 597 620) no Hoare annotation was computed. [2023-03-31 23:58:36,299 INFO L899 garLoopResultBuilder]: For program point L603(line 603) no Hoare annotation was computed. [2023-03-31 23:58:36,299 INFO L899 garLoopResultBuilder]: For program point L602(line 602) no Hoare annotation was computed. [2023-03-31 23:58:36,299 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 597 620) no Hoare annotation was computed. [2023-03-31 23:58:36,299 INFO L899 garLoopResultBuilder]: For program point L615(line 615) no Hoare annotation was computed. [2023-03-31 23:58:36,299 INFO L899 garLoopResultBuilder]: For program point L614(line 614) no Hoare annotation was computed. [2023-03-31 23:58:36,299 INFO L899 garLoopResultBuilder]: For program point L613(line 613) no Hoare annotation was computed. [2023-03-31 23:58:36,299 INFO L899 garLoopResultBuilder]: For program point L612(line 612) no Hoare annotation was computed. [2023-03-31 23:58:36,299 INFO L899 garLoopResultBuilder]: For program point L611(line 611) no Hoare annotation was computed. [2023-03-31 23:58:36,299 INFO L899 garLoopResultBuilder]: For program point L610(line 610) no Hoare annotation was computed. [2023-03-31 23:58:36,299 INFO L902 garLoopResultBuilder]: At program point L906(line 906) the Hoare annotation is: true [2023-03-31 23:58:36,299 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 899 917) the Hoare annotation is: true [2023-03-31 23:58:36,300 INFO L899 garLoopResultBuilder]: For program point L906-1(line 906) no Hoare annotation was computed. [2023-03-31 23:58:36,300 INFO L899 garLoopResultBuilder]: For program point isLowWaterLevelEXIT(lines 899 917) no Hoare annotation was computed. [2023-03-31 23:58:36,300 INFO L899 garLoopResultBuilder]: For program point select_featuresEXIT(lines 677 683) no Hoare annotation was computed. [2023-03-31 23:58:36,300 INFO L902 garLoopResultBuilder]: At program point select_featuresFINAL(lines 677 683) the Hoare annotation is: true [2023-03-31 23:58:36,300 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 369 414) no Hoare annotation was computed. [2023-03-31 23:58:36,300 INFO L899 garLoopResultBuilder]: For program point __utac__get_this_argtypeEXIT(lines 369 414) no Hoare annotation was computed. [2023-03-31 23:58:36,300 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 540 553) the Hoare annotation is: true [2023-03-31 23:58:36,300 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDryEXIT(lines 540 553) no Hoare annotation was computed. [2023-03-31 23:58:36,300 INFO L899 garLoopResultBuilder]: For program point L769(lines 769 786) no Hoare annotation was computed. [2023-03-31 23:58:36,300 INFO L899 garLoopResultBuilder]: For program point processEnvironmentEXIT(lines 765 789) no Hoare annotation was computed. [2023-03-31 23:58:36,300 INFO L895 garLoopResultBuilder]: At program point L784(line 784) 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 23:58:36,300 INFO L899 garLoopResultBuilder]: For program point L784-1(lines 765 789) no Hoare annotation was computed. [2023-03-31 23:58:36,300 INFO L895 garLoopResultBuilder]: At program point L779(line 779) 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 23:58:36,301 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 765 789) 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 23:58:36,301 INFO L895 garLoopResultBuilder]: At program point L775(line 775) 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 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= 1 processEnvironment_~tmp~6)) .cse3) (or .cse0 .cse2 .cse1 .cse3))) [2023-03-31 23:58:36,301 INFO L899 garLoopResultBuilder]: For program point L773(lines 773 781) no Hoare annotation was computed. [2023-03-31 23:58:36,301 INFO L895 garLoopResultBuilder]: At program point L771(line 771) 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 23:58:36,301 INFO L899 garLoopResultBuilder]: For program point L771-1(line 771) no Hoare annotation was computed. [2023-03-31 23:58:36,301 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 731 737) no Hoare annotation was computed. [2023-03-31 23:58:36,301 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 731 737) the Hoare annotation is: true [2023-03-31 23:58:36,301 INFO L895 garLoopResultBuilder]: At program point L985(lines 936 986) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (not (= |old(~systemActive~0)| 1))) [2023-03-31 23:58:36,301 INFO L899 garLoopResultBuilder]: For program point testFINAL(lines 927 992) no Hoare annotation was computed. [2023-03-31 23:58:36,301 INFO L895 garLoopResultBuilder]: At program point L975-2(lines 967 980) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0)) (.cse1 (= 1 ~systemActive~0))) (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (and .cse0 (<= 2 ~waterLevel~0) .cse1 (<= ~waterLevel~0 2)) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) .cse0 .cse1 (= |old(~waterLevel~0)| ~waterLevel~0)))) [2023-03-31 23:58:36,301 INFO L899 garLoopResultBuilder]: For program point L938(lines 937 984) no Hoare annotation was computed. [2023-03-31 23:58:36,302 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 927 992) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (not (= |old(~systemActive~0)| 1))) [2023-03-31 23:58:36,302 INFO L895 garLoopResultBuilder]: At program point L969(line 969) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0)) (.cse1 (= 1 ~systemActive~0))) (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (and .cse0 (<= 2 ~waterLevel~0) .cse1 (<= ~waterLevel~0 2)) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) .cse0 .cse1 (= |old(~waterLevel~0)| ~waterLevel~0)))) [2023-03-31 23:58:36,302 INFO L899 garLoopResultBuilder]: For program point L967(lines 967 980) no Hoare annotation was computed. [2023-03-31 23:58:36,302 INFO L895 garLoopResultBuilder]: At program point L959(line 959) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0)) (.cse1 (= 1 ~systemActive~0))) (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (and .cse0 (<= 2 ~waterLevel~0) .cse1 (<= ~waterLevel~0 2)) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) .cse0 .cse1 (= |old(~waterLevel~0)| ~waterLevel~0)))) [2023-03-31 23:58:36,302 INFO L899 garLoopResultBuilder]: For program point L957(lines 957 963) no Hoare annotation was computed. [2023-03-31 23:58:36,302 INFO L899 garLoopResultBuilder]: For program point L957-1(lines 957 963) no Hoare annotation was computed. [2023-03-31 23:58:36,302 INFO L895 garLoopResultBuilder]: At program point L982(lines 937 984) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0)) (.cse1 (= 1 ~systemActive~0))) (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (and .cse0 (<= 2 ~waterLevel~0) .cse1 (<= ~waterLevel~0 2)) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) .cse0 .cse1 (= |old(~waterLevel~0)| ~waterLevel~0)))) [2023-03-31 23:58:36,302 INFO L895 garLoopResultBuilder]: At program point L949(line 949) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0)) (.cse1 (= 1 ~systemActive~0))) (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (and .cse0 (<= 2 ~waterLevel~0) .cse1 (<= ~waterLevel~0 2)) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) .cse0 (<= ~waterLevel~0 1) .cse1 (<= 1 ~waterLevel~0)))) [2023-03-31 23:58:36,302 INFO L899 garLoopResultBuilder]: For program point L947(lines 947 953) no Hoare annotation was computed. [2023-03-31 23:58:36,302 INFO L899 garLoopResultBuilder]: For program point L947-1(lines 947 953) no Hoare annotation was computed. [2023-03-31 23:58:36,302 INFO L899 garLoopResultBuilder]: For program point testEXIT(lines 927 992) no Hoare annotation was computed. [2023-03-31 23:58:36,302 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 790 797) 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 23:58:36,302 INFO L899 garLoopResultBuilder]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 790 797) no Hoare annotation was computed. [2023-03-31 23:58:36,302 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 554 562) the Hoare annotation is: true [2023-03-31 23:58:36,303 INFO L899 garLoopResultBuilder]: For program point isLowWaterSensorDryEXIT(lines 554 562) no Hoare annotation was computed. [2023-03-31 23:58:36,303 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 508 530) no Hoare annotation was computed. [2023-03-31 23:58:36,303 INFO L899 garLoopResultBuilder]: For program point printEnvironmentEXIT(lines 508 530) no Hoare annotation was computed. [2023-03-31 23:58:36,303 INFO L899 garLoopResultBuilder]: For program point activatePumpEXIT(lines 799 815) no Hoare annotation was computed. [2023-03-31 23:58:36,303 INFO L895 garLoopResultBuilder]: At program point L810(line 810) 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 23:58:36,303 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 799 815) 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 23:58:36,303 INFO L899 garLoopResultBuilder]: For program point L810-1(lines 799 815) no Hoare annotation was computed. [2023-03-31 23:58:36,303 INFO L899 garLoopResultBuilder]: For program point L806(lines 806 812) no Hoare annotation was computed. [2023-03-31 23:58:36,303 INFO L895 garLoopResultBuilder]: At program point L804(line 804) 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 23:58:36,303 INFO L899 garLoopResultBuilder]: For program point L804-1(line 804) no Hoare annotation was computed. [2023-03-31 23:58:36,303 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 531 539) the Hoare annotation is: true [2023-03-31 23:58:36,303 INFO L899 garLoopResultBuilder]: For program point getWaterLevelEXIT(lines 531 539) no Hoare annotation was computed. [2023-03-31 23:58:36,303 INFO L899 garLoopResultBuilder]: For program point isHighWaterLevelEXIT(lines 880 898) no Hoare annotation was computed. [2023-03-31 23:58:36,303 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 880 898) the Hoare annotation is: true [2023-03-31 23:58:36,303 INFO L902 garLoopResultBuilder]: At program point L887(line 887) the Hoare annotation is: true [2023-03-31 23:58:36,304 INFO L899 garLoopResultBuilder]: For program point L887-1(line 887) no Hoare annotation was computed. [2023-03-31 23:58:36,304 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 499 507) the Hoare annotation is: true [2023-03-31 23:58:36,304 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 499 507) no Hoare annotation was computed. [2023-03-31 23:58:36,304 INFO L895 garLoopResultBuilder]: At program point L720(line 720) 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 23:58:36,304 INFO L895 garLoopResultBuilder]: At program point L718(lines 718 724) the Hoare annotation is: (let ((.cse6 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse7 (= 1 ~systemActive~0))) (let ((.cse3 (= ~pumpRunning~0 0)) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not .cse7)) (.cse1 (and (<= 2 ~waterLevel~0) .cse7 .cse6)) (.cse2 (< |old(~waterLevel~0)| 2)) (.cse4 (< 2 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 .cse2 (and .cse3 (<= ~waterLevel~0 1) (<= 1 ~waterLevel~0)) .cse4) (or (< 1 |old(~waterLevel~0)|) .cse5 (< |old(~waterLevel~0)| 1) (and .cse3 .cse6) .cse0) (or .cse5 .cse0 .cse1 .cse2 .cse4)))) [2023-03-31 23:58:36,304 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 707 730) no Hoare annotation was computed. [2023-03-31 23:58:36,304 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 707 730) 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 23:58:36,304 INFO L895 garLoopResultBuilder]: At program point L713(line 713) 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 23:58:36,304 INFO L899 garLoopResultBuilder]: For program point L711(lines 710 729) no Hoare annotation was computed. [2023-03-31 23:58:36,304 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 707 730) no Hoare annotation was computed. [2023-03-31 23:58:36,304 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 566 595) no Hoare annotation was computed. [2023-03-31 23:58:36,304 INFO L902 garLoopResultBuilder]: At program point L576-2(lines 576 590) the Hoare annotation is: true [2023-03-31 23:58:36,304 INFO L902 garLoopResultBuilder]: At program point L572(line 572) the Hoare annotation is: true [2023-03-31 23:58:36,305 INFO L899 garLoopResultBuilder]: For program point L572-1(line 572) no Hoare annotation was computed. [2023-03-31 23:58:36,305 INFO L902 garLoopResultBuilder]: At program point L591(lines 566 595) the Hoare annotation is: true [2023-03-31 23:58:36,305 INFO L899 garLoopResultBuilder]: For program point L587(line 587) no Hoare annotation was computed. [2023-03-31 23:58:36,305 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 566 595) the Hoare annotation is: true [2023-03-31 23:58:36,305 INFO L899 garLoopResultBuilder]: For program point L580(lines 580 584) no Hoare annotation was computed. [2023-03-31 23:58:36,305 INFO L902 garLoopResultBuilder]: At program point L580-1(lines 580 584) the Hoare annotation is: true [2023-03-31 23:58:36,305 INFO L899 garLoopResultBuilder]: For program point lowerWaterLevelEXIT(lines 463 474) no Hoare annotation was computed. [2023-03-31 23:58:36,305 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 463 474) 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 23:58:36,305 INFO L899 garLoopResultBuilder]: For program point startSystemEXIT(lines 918 925) no Hoare annotation was computed. [2023-03-31 23:58:36,305 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 918 925) 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 23:58:36,305 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 739 763) no Hoare annotation was computed. [2023-03-31 23:58:36,305 INFO L895 garLoopResultBuilder]: At program point L758(line 758) 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 23:58:36,305 INFO L899 garLoopResultBuilder]: For program point L758-1(lines 739 763) no Hoare annotation was computed. [2023-03-31 23:58:36,306 INFO L895 garLoopResultBuilder]: At program point L753(line 753) 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~5 0))))) [2023-03-31 23:58:36,306 INFO L895 garLoopResultBuilder]: At program point L749(line 749) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or (< 2 ~waterLevel~0) (and (= ~pumpRunning~0 0) (= processEnvironment__wrappee__highWaterSensor_~tmp~5 1)) .cse0 .cse1 (< ~waterLevel~0 2)) (or .cse0 (< ~waterLevel~0 1) .cse1 (< 1 ~waterLevel~0)))) [2023-03-31 23:58:36,306 INFO L899 garLoopResultBuilder]: For program point L747(lines 747 755) no Hoare annotation was computed. [2023-03-31 23:58:36,306 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 739 763) 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 23:58:36,306 INFO L895 garLoopResultBuilder]: At program point L745(line 745) 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 23:58:36,306 INFO L899 garLoopResultBuilder]: For program point L745-1(line 745) no Hoare annotation was computed. [2023-03-31 23:58:36,306 INFO L899 garLoopResultBuilder]: For program point L743(lines 743 760) no Hoare annotation was computed. [2023-03-31 23:58:36,306 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 475 486) no Hoare annotation was computed. [2023-03-31 23:58:36,306 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 475 486) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (< 1 |old(~waterLevel~0)|) (< |old(~waterLevel~0)| 1) (not (= ~pumpRunning~0 0)) .cse0 .cse1) (or .cse0 (< |old(~waterLevel~0)| 2) .cse1 (< 2 |old(~waterLevel~0)|)))) [2023-03-31 23:58:36,306 INFO L902 garLoopResultBuilder]: At program point ERROR(lines 445 452) the Hoare annotation is: true [2023-03-31 23:58:36,306 INFO L899 garLoopResultBuilder]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 449) no Hoare annotation was computed. [2023-03-31 23:58:36,306 INFO L899 garLoopResultBuilder]: For program point __automaton_failEXIT(lines 445 452) no Hoare annotation was computed. [2023-03-31 23:58:36,307 INFO L902 garLoopResultBuilder]: At program point select_helpersFINAL(lines 684 690) the Hoare annotation is: true [2023-03-31 23:58:36,307 INFO L899 garLoopResultBuilder]: For program point select_helpersEXIT(lines 684 690) no Hoare annotation was computed. [2023-03-31 23:58:36,307 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 835 843) no Hoare annotation was computed. [2023-03-31 23:58:36,307 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 835 843) the Hoare annotation is: true [2023-03-31 23:58:36,307 INFO L899 garLoopResultBuilder]: For program point L874(line 874) no Hoare annotation was computed. [2023-03-31 23:58:36,307 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 844 879) no Hoare annotation was computed. [2023-03-31 23:58:36,307 INFO L899 garLoopResultBuilder]: For program point L874-1(line 874) no Hoare annotation was computed. [2023-03-31 23:58:36,307 INFO L899 garLoopResultBuilder]: For program point printPumpEXIT(lines 844 879) no Hoare annotation was computed. [2023-03-31 23:58:36,307 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_setEXIT(lines 56 101) no Hoare annotation was computed. [2023-03-31 23:58:36,307 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 56 101) no Hoare annotation was computed. [2023-03-31 23:58:36,307 INFO L899 garLoopResultBuilder]: For program point runTestEXIT(lines 629 638) no Hoare annotation was computed. [2023-03-31 23:58:36,307 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 629 638) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (not (= |old(~systemActive~0)| 1))) [2023-03-31 23:58:36,307 INFO L899 garLoopResultBuilder]: For program point runTestFINAL(lines 629 638) no Hoare annotation was computed. [2023-03-31 23:58:36,307 INFO L902 garLoopResultBuilder]: At program point L829(line 829) the Hoare annotation is: true [2023-03-31 23:58:36,307 INFO L899 garLoopResultBuilder]: For program point L829-1(line 829) no Hoare annotation was computed. [2023-03-31 23:58:36,308 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 824 834) no Hoare annotation was computed. [2023-03-31 23:58:36,308 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 824 834) the Hoare annotation is: true [2023-03-31 23:58:36,308 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 816 823) no Hoare annotation was computed. [2023-03-31 23:58:36,308 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 816 823) 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 23:58:36,308 INFO L899 garLoopResultBuilder]: For program point __utac__get_this_argEXIT(lines 323 368) no Hoare annotation was computed. [2023-03-31 23:58:36,308 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 323 368) no Hoare annotation was computed. [2023-03-31 23:58:36,308 INFO L899 garLoopResultBuilder]: For program point L285(line 285) no Hoare annotation was computed. [2023-03-31 23:58:36,308 INFO L899 garLoopResultBuilder]: For program point L285-1(line 285) no Hoare annotation was computed. [2023-03-31 23:58:36,308 INFO L899 garLoopResultBuilder]: For program point L244(lines 244 248) no Hoare annotation was computed. [2023-03-31 23:58:36,308 INFO L899 garLoopResultBuilder]: For program point L269-2(lines 269 289) no Hoare annotation was computed. [2023-03-31 23:58:36,308 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 220 322) no Hoare annotation was computed. [2023-03-31 23:58:36,308 INFO L899 garLoopResultBuilder]: For program point __utac__error_stack_mgtFINAL(lines 220 322) no Hoare annotation was computed. [2023-03-31 23:58:36,308 INFO L899 garLoopResultBuilder]: For program point L290(lines 268 291) no Hoare annotation was computed. [2023-03-31 23:58:36,308 INFO L899 garLoopResultBuilder]: For program point L249(lines 249 265) no Hoare annotation was computed. [2023-03-31 23:58:36,308 INFO L899 garLoopResultBuilder]: For program point __utac__error_stack_mgtEXIT(lines 220 322) no Hoare annotation was computed. [2023-03-31 23:58:36,308 INFO L899 garLoopResultBuilder]: For program point L270(lines 269 289) no Hoare annotation was computed. [2023-03-31 23:58:36,308 INFO L899 garLoopResultBuilder]: For program point L301(line 301) no Hoare annotation was computed. [2023-03-31 23:58:36,308 INFO L899 garLoopResultBuilder]: For program point L301-1(line 301) no Hoare annotation was computed. [2023-03-31 23:58:36,309 INFO L899 garLoopResultBuilder]: For program point L266(lines 266 307) no Hoare annotation was computed. [2023-03-31 23:58:36,309 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 667 676) no Hoare annotation was computed. [2023-03-31 23:58:36,309 INFO L899 garLoopResultBuilder]: For program point select_oneEXIT(lines 667 676) no Hoare annotation was computed. [2023-03-31 23:58:36,309 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 23:58:36,309 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-03-31 23:58:36,309 INFO L899 garLoopResultBuilder]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2023-03-31 23:58:36,309 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-03-31 23:58:36,309 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 487 498) the Hoare annotation is: true [2023-03-31 23:58:36,309 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 487 498) no Hoare annotation was computed. [2023-03-31 23:58:36,309 INFO L899 garLoopResultBuilder]: For program point setupEXIT(lines 621 627) no Hoare annotation was computed. [2023-03-31 23:58:36,309 INFO L902 garLoopResultBuilder]: At program point setupFINAL(lines 621 627) the Hoare annotation is: true [2023-03-31 23:58:36,309 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-03-31 23:58:36,309 INFO L895 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: (and (= ~pumpRunning~0 0) (<= ~waterLevel~0 1) (= 1 ~systemActive~0) (<= 1 ~waterLevel~0)) [2023-03-31 23:58:36,309 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-03-31 23:58:36,310 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-03-31 23:58:36,312 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:58:36,314 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-03-31 23:58:36,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.03 11:58:36 BoogieIcfgContainer [2023-03-31 23:58:36,334 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-03-31 23:58:36,334 INFO L158 Benchmark]: Toolchain (without parser) took 34604.88ms. Allocated memory was 256.9MB in the beginning and 640.7MB in the end (delta: 383.8MB). Free memory was 211.6MB in the beginning and 272.4MB in the end (delta: -60.8MB). Peak memory consumption was 376.4MB. Max. memory is 8.0GB. [2023-03-31 23:58:36,338 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 184.5MB. Free memory is still 136.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 23:58:36,339 INFO L158 Benchmark]: CACSL2BoogieTranslator took 338.42ms. Allocated memory is still 256.9MB. Free memory was 211.1MB in the beginning and 192.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-03-31 23:58:36,339 INFO L158 Benchmark]: Boogie Preprocessor took 57.58ms. Allocated memory is still 256.9MB. Free memory was 192.2MB in the beginning and 189.1MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-03-31 23:58:36,339 INFO L158 Benchmark]: RCFGBuilder took 972.57ms. Allocated memory is still 256.9MB. Free memory was 189.1MB in the beginning and 127.2MB in the end (delta: 61.9MB). Peak memory consumption was 61.9MB. Max. memory is 8.0GB. [2023-03-31 23:58:36,340 INFO L158 Benchmark]: TraceAbstraction took 33229.32ms. Allocated memory was 256.9MB in the beginning and 640.7MB in the end (delta: 383.8MB). Free memory was 126.2MB in the beginning and 272.4MB in the end (delta: -146.2MB). Peak memory consumption was 291.5MB. Max. memory is 8.0GB. [2023-03-31 23:58:36,341 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 184.5MB. Free memory is still 136.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 338.42ms. Allocated memory is still 256.9MB. Free memory was 211.1MB in the beginning and 192.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 57.58ms. Allocated memory is still 256.9MB. Free memory was 192.2MB in the beginning and 189.1MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 972.57ms. Allocated memory is still 256.9MB. Free memory was 189.1MB in the beginning and 127.2MB in the end (delta: 61.9MB). Peak memory consumption was 61.9MB. Max. memory is 8.0GB. * TraceAbstraction took 33229.32ms. Allocated memory was 256.9MB in the beginning and 640.7MB in the end (delta: 383.8MB). Free memory was 126.2MB in the beginning and 272.4MB in the end (delta: -146.2MB). Peak memory consumption was 291.5MB. 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: 449]: 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: 33.1s, OverallIterations: 11, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 9.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3251 SdHoareTripleChecker+Valid, 5.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3146 mSDsluCounter, 5744 SdHoareTripleChecker+Invalid, 4.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4664 mSDsCounter, 2393 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10236 IncrementalHoareTripleChecker+Invalid, 12629 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2393 mSolverCounterUnsat, 1080 mSDtfsCounter, 10236 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1660 GetRequests, 1237 SyntacticMatches, 46 SemanticMatches, 377 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17481 ImplicationChecksByTransitivity, 12.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1283occurred in iteration=9, InterpolantAutomatonStates: 185, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 11 MinimizatonAttempts, 846 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 66 LocationsWithAnnotation, 2368 PreInvPairs, 2430 NumberOfFragments, 1310 HoareAnnotationTreeSize, 2368 FomulaSimplifications, 21451 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 66 FomulaSimplificationsInter, 5710 FormulaSimplificationTreeSizeReductionInter, 1.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 7.5s InterpolantComputationTime, 1733 NumberOfCodeBlocks, 1674 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 2073 ConstructedInterpolants, 0 QuantifiedInterpolants, 5444 SizeOfPredicates, 40 NumberOfNonLiveVariables, 2147 ConjunctsInSsa, 185 ConjunctsInUnsatCore, 17 InterpolantComputations, 9 PerfectInterpolantSequences, 807/908 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: 576]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 566]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 937]: Loop Invariant Derived loop invariant: ((((1 < \old(waterLevel) || !(\old(pumpRunning) == 0)) || \old(waterLevel) < 1) || (((splverifierCounter == 0 && 2 <= waterLevel) && 1 == systemActive) && waterLevel <= 2)) || !(\old(systemActive) == 1)) || (((pumpRunning == 0 && splverifierCounter == 0) && 1 == systemActive) && \old(waterLevel) == waterLevel) - InvariantResult [Line: 936]: Loop Invariant Derived loop invariant: ((1 < \old(waterLevel) || !(\old(pumpRunning) == 0)) || \old(waterLevel) < 1) || !(\old(systemActive) == 1) RESULT: Ultimate proved your program to be correct! [2023-03-31 23:58:36,370 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...