/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-03 01:02:46,003 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-03 01:02:46,005 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-03 01:02:46,026 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-03 01:02:46,026 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-03 01:02:46,027 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-03 01:02:46,028 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-03 01:02:46,029 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-03 01:02:46,031 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-03 01:02:46,031 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-03 01:02:46,032 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-03 01:02:46,033 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-03 01:02:46,033 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-03 01:02:46,034 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-03 01:02:46,034 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-03 01:02:46,035 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-03 01:02:46,036 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-03 01:02:46,036 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-03 01:02:46,038 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-03 01:02:46,039 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-03 01:02:46,040 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-03 01:02:46,041 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-03 01:02:46,042 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-03 01:02:46,042 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-03 01:02:46,045 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-03 01:02:46,045 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-03 01:02:46,045 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-03 01:02:46,046 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-03 01:02:46,046 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-03 01:02:46,046 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-03 01:02:46,047 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-03 01:02:46,047 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-03 01:02:46,047 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-03 01:02:46,048 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-03 01:02:46,048 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-03 01:02:46,049 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-03 01:02:46,049 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-03 01:02:46,049 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-03 01:02:46,049 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-03 01:02:46,050 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-03 01:02:46,050 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-03 01:02:46,051 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-03 01:02:46,065 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-03 01:02:46,066 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-03 01:02:46,066 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-03 01:02:46,066 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-03 01:02:46,066 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-03 01:02:46,067 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-03 01:02:46,067 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-03 01:02:46,067 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-03 01:02:46,067 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-03 01:02:46,067 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-03 01:02:46,067 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-03 01:02:46,067 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-03 01:02:46,067 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-03 01:02:46,067 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-03 01:02:46,068 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-03 01:02:46,068 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-03 01:02:46,068 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-03 01:02:46,068 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-03 01:02:46,068 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-03 01:02:46,068 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-03 01:02:46,068 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-03 01:02:46,068 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-03 01:02:46,069 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-03 01:02:46,069 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-03 01:02:46,069 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-03 01:02:46,069 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-03 01:02:46,069 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-03 01:02:46,069 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-03 01:02:46,069 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-03 01:02:46,069 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-03 01:02:46,069 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-03 01:02:46,069 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-03 01:02:46,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 01:02:46,070 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-03 01:02:46,070 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-03 01:02:46,070 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-03 01:02:46,070 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-03 01:02:46,070 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-03 01:02:46,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-03 01:02:46,070 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-03 01:02:46,070 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-03 01:02:46,070 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-03 01:02:46,263 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-03 01:02:46,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-03 01:02:46,279 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-03 01:02:46,280 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-03 01:02:46,281 INFO L275 PluginConnector]: CDTParser initialized [2023-04-03 01:02:46,282 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c [2023-04-03 01:02:47,311 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-03 01:02:47,535 INFO L351 CDTParser]: Found 1 translation units. [2023-04-03 01:02:47,538 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c [2023-04-03 01:02:47,549 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0509e621e/2674ff88b926464c91acad7c19c7c751/FLAG6140aff17 [2023-04-03 01:02:47,566 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0509e621e/2674ff88b926464c91acad7c19c7c751 [2023-04-03 01:02:47,569 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-03 01:02:47,571 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-03 01:02:47,573 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-03 01:02:47,573 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-03 01:02:47,576 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-03 01:02:47,577 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 01:02:47" (1/1) ... [2023-04-03 01:02:47,577 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@265e89e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:02:47, skipping insertion in model container [2023-04-03 01:02:47,578 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 01:02:47" (1/1) ... [2023-04-03 01:02:47,583 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-03 01:02:47,625 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-03 01:02:47,776 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_spec3_product59.cil.c[15143,15156] [2023-04-03 01:02:47,796 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 01:02:47,807 INFO L203 MainTranslator]: Completed pre-run [2023-04-03 01:02:47,842 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_spec3_product59.cil.c[15143,15156] [2023-04-03 01:02:47,861 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 01:02:47,873 INFO L208 MainTranslator]: Completed translation [2023-04-03 01:02:47,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:02:47 WrapperNode [2023-04-03 01:02:47,874 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-03 01:02:47,875 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-03 01:02:47,875 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-03 01:02:47,875 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-03 01:02:47,882 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:02:47" (1/1) ... [2023-04-03 01:02:47,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:02:47" (1/1) ... [2023-04-03 01:02:47,891 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:02:47" (1/1) ... [2023-04-03 01:02:47,892 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:02:47" (1/1) ... [2023-04-03 01:02:47,906 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:02:47" (1/1) ... [2023-04-03 01:02:47,911 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:02:47" (1/1) ... [2023-04-03 01:02:47,913 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:02:47" (1/1) ... [2023-04-03 01:02:47,915 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:02:47" (1/1) ... [2023-04-03 01:02:47,919 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-03 01:02:47,920 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-03 01:02:47,920 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-03 01:02:47,920 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-03 01:02:47,921 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:02:47" (1/1) ... [2023-04-03 01:02:47,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 01:02:47,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 01:02:47,943 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-03 01:02:47,945 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-03 01:02:47,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-03 01:02:47,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-03 01:02:47,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-03 01:02:47,978 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-03 01:02:47,979 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-03 01:02:47,979 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-03 01:02:47,981 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-03 01:02:47,981 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-03 01:02:47,981 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-03 01:02:47,981 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-03 01:02:47,981 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-03 01:02:47,982 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-03 01:02:47,982 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-03 01:02:47,982 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-03 01:02:47,982 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-03 01:02:47,982 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-03 01:02:47,982 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2023-04-03 01:02:47,982 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2023-04-03 01:02:47,982 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-03 01:02:47,982 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-03 01:02:47,982 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-03 01:02:47,982 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-03 01:02:47,982 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-03 01:02:47,982 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-03 01:02:47,982 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-03 01:02:47,982 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-03 01:02:47,983 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-03 01:02:47,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2023-04-03 01:02:47,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-03 01:02:47,983 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-03 01:02:47,983 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-03 01:02:47,983 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-04-03 01:02:47,983 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-04-03 01:02:47,983 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-03 01:02:47,983 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2023-04-03 01:02:47,983 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-03 01:02:47,983 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-03 01:02:47,983 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-03 01:02:47,983 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-03 01:02:47,983 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-03 01:02:47,984 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2023-04-03 01:02:47,984 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2023-04-03 01:02:47,984 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2023-04-03 01:02:47,984 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-03 01:02:47,984 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-03 01:02:47,984 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-03 01:02:47,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-03 01:02:47,984 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-03 01:02:47,984 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-03 01:02:47,984 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-03 01:02:47,984 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-03 01:02:47,984 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-03 01:02:47,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-03 01:02:47,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-03 01:02:47,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-03 01:02:47,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-03 01:02:47,985 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-03 01:02:47,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-03 01:02:47,985 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-03 01:02:47,985 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-03 01:02:47,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-03 01:02:47,985 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-03 01:02:47,985 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-03 01:02:47,985 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-03 01:02:47,985 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-03 01:02:47,985 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-03 01:02:47,985 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-03 01:02:47,986 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-03 01:02:47,986 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-03 01:02:47,986 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-03 01:02:47,986 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2023-04-03 01:02:47,986 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2023-04-03 01:02:47,986 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-03 01:02:47,986 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-03 01:02:47,986 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-03 01:02:47,986 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-03 01:02:47,986 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-03 01:02:47,986 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-03 01:02:47,986 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-03 01:02:47,986 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-03 01:02:47,986 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-03 01:02:47,986 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-03 01:02:47,987 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-03 01:02:47,987 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-03 01:02:47,987 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-03 01:02:47,987 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-03 01:02:47,987 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2023-04-03 01:02:47,987 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2023-04-03 01:02:47,987 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-03 01:02:47,987 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-03 01:02:47,987 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-03 01:02:47,987 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-04-03 01:02:47,987 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2023-04-03 01:02:47,987 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-04-03 01:02:47,987 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2023-04-03 01:02:47,987 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2023-04-03 01:02:47,988 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-03 01:02:47,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-03 01:02:47,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-03 01:02:47,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-03 01:02:48,110 INFO L236 CfgBuilder]: Building ICFG [2023-04-03 01:02:48,112 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-03 01:02:48,503 INFO L277 CfgBuilder]: Performing block encoding [2023-04-03 01:02:48,636 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-03 01:02:48,636 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-03 01:02:48,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 01:02:48 BoogieIcfgContainer [2023-04-03 01:02:48,649 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-03 01:02:48,651 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-03 01:02:48,651 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-03 01:02:48,654 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-03 01:02:48,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.04 01:02:47" (1/3) ... [2023-04-03 01:02:48,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4188ac25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 01:02:48, skipping insertion in model container [2023-04-03 01:02:48,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:02:47" (2/3) ... [2023-04-03 01:02:48,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4188ac25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 01:02:48, skipping insertion in model container [2023-04-03 01:02:48,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 01:02:48" (3/3) ... [2023-04-03 01:02:48,656 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product59.cil.c [2023-04-03 01:02:48,669 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-03 01:02:48,669 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-03 01:02:48,714 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-03 01:02:48,719 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;@2fbbee2f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-03 01:02:48,719 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-03 01:02:48,723 INFO L276 IsEmpty]: Start isEmpty. Operand has 162 states, 76 states have (on average 1.2763157894736843) internal successors, (97), 91 states have internal predecessors, (97), 51 states have call successors, (51), 32 states have call predecessors, (51), 32 states have return successors, (51), 47 states have call predecessors, (51), 51 states have call successors, (51) [2023-04-03 01:02:48,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-04-03 01:02:48,735 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:02:48,740 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:02:48,741 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:02:48,746 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:02:48,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1661097802, now seen corresponding path program 1 times [2023-04-03 01:02:48,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:02:48,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528186166] [2023-04-03 01:02:48,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:02:48,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:02:48,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:02:48,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:02:48,921 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:02:48,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528186166] [2023-04-03 01:02:48,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528186166] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:02:48,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:02:48,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-03 01:02:48,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902844940] [2023-04-03 01:02:48,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:02:48,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-03 01:02:48,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:02:48,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-03 01:02:48,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-03 01:02:48,965 INFO L87 Difference]: Start difference. First operand has 162 states, 76 states have (on average 1.2763157894736843) internal successors, (97), 91 states have internal predecessors, (97), 51 states have call successors, (51), 32 states have call predecessors, (51), 32 states have return successors, (51), 47 states have call predecessors, (51), 51 states have call successors, (51) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-03 01:02:49,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:02:49,031 INFO L93 Difference]: Finished difference Result 257 states and 312 transitions. [2023-04-03 01:02:49,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-03 01:02:49,038 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 47 [2023-04-03 01:02:49,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:02:49,046 INFO L225 Difference]: With dead ends: 257 [2023-04-03 01:02:49,046 INFO L226 Difference]: Without dead ends: 129 [2023-04-03 01:02:49,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-03 01:02:49,055 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-03 01:02:49,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 142 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-03 01:02:49,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2023-04-03 01:02:49,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2023-04-03 01:02:49,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 67 states have (on average 1.2388059701492538) internal successors, (83), 79 states have internal predecessors, (83), 36 states have call successors, (36), 30 states have call predecessors, (36), 25 states have return successors, (31), 27 states have call predecessors, (31), 31 states have call successors, (31) [2023-04-03 01:02:49,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 150 transitions. [2023-04-03 01:02:49,104 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 150 transitions. Word has length 47 [2023-04-03 01:02:49,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:02:49,104 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 150 transitions. [2023-04-03 01:02:49,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-03 01:02:49,105 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 150 transitions. [2023-04-03 01:02:49,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-04-03 01:02:49,107 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:02:49,107 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] [2023-04-03 01:02:49,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-03 01:02:49,107 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:02:49,108 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:02:49,108 INFO L85 PathProgramCache]: Analyzing trace with hash 646176141, now seen corresponding path program 1 times [2023-04-03 01:02:49,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:02:49,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982874260] [2023-04-03 01:02:49,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:02:49,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:02:49,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:02:49,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:02:49,230 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:02:49,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982874260] [2023-04-03 01:02:49,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982874260] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:02:49,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:02:49,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 01:02:49,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50940883] [2023-04-03 01:02:49,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:02:49,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 01:02:49,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:02:49,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 01:02:49,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 01:02:49,234 INFO L87 Difference]: Start difference. First operand 129 states and 150 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-03 01:02:49,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:02:49,299 INFO L93 Difference]: Finished difference Result 208 states and 240 transitions. [2023-04-03 01:02:49,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 01:02:49,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 48 [2023-04-03 01:02:49,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:02:49,301 INFO L225 Difference]: With dead ends: 208 [2023-04-03 01:02:49,301 INFO L226 Difference]: Without dead ends: 121 [2023-04-03 01:02:49,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 01:02:49,303 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 11 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-03 01:02:49,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 228 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-03 01:02:49,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-04-03 01:02:49,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2023-04-03 01:02:49,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 62 states have (on average 1.2419354838709677) internal successors, (77), 74 states have internal predecessors, (77), 33 states have call successors, (33), 29 states have call predecessors, (33), 25 states have return successors, (29), 25 states have call predecessors, (29), 29 states have call successors, (29) [2023-04-03 01:02:49,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 139 transitions. [2023-04-03 01:02:49,311 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 139 transitions. Word has length 48 [2023-04-03 01:02:49,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:02:49,312 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 139 transitions. [2023-04-03 01:02:49,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-03 01:02:49,312 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 139 transitions. [2023-04-03 01:02:49,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-04-03 01:02:49,313 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:02:49,313 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:02:49,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-03 01:02:49,314 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:02:49,314 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:02:49,314 INFO L85 PathProgramCache]: Analyzing trace with hash 480257901, now seen corresponding path program 1 times [2023-04-03 01:02:49,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:02:49,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879309541] [2023-04-03 01:02:49,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:02:49,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:02:49,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:02:49,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:02:49,507 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:02:49,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879309541] [2023-04-03 01:02:49,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879309541] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:02:49,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:02:49,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-03 01:02:49,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084587190] [2023-04-03 01:02:49,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:02:49,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-03 01:02:49,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:02:49,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-03 01:02:49,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-04-03 01:02:49,509 INFO L87 Difference]: Start difference. First operand 121 states and 139 transitions. Second operand has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 4 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-04-03 01:02:49,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:02:49,796 INFO L93 Difference]: Finished difference Result 368 states and 436 transitions. [2023-04-03 01:02:49,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 01:02:49,797 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 4 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 51 [2023-04-03 01:02:49,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:02:49,804 INFO L225 Difference]: With dead ends: 368 [2023-04-03 01:02:49,804 INFO L226 Difference]: Without dead ends: 269 [2023-04-03 01:02:49,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-04-03 01:02:49,809 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 294 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-03 01:02:49,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 545 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-03 01:02:49,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2023-04-03 01:02:49,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 261. [2023-04-03 01:02:49,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 140 states have (on average 1.2714285714285714) internal successors, (178), 164 states have internal predecessors, (178), 67 states have call successors, (67), 59 states have call predecessors, (67), 53 states have return successors, (64), 51 states have call predecessors, (64), 63 states have call successors, (64) [2023-04-03 01:02:49,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 309 transitions. [2023-04-03 01:02:49,840 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 309 transitions. Word has length 51 [2023-04-03 01:02:49,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:02:49,840 INFO L495 AbstractCegarLoop]: Abstraction has 261 states and 309 transitions. [2023-04-03 01:02:49,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 4 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-04-03 01:02:49,840 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 309 transitions. [2023-04-03 01:02:49,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-04-03 01:02:49,842 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:02:49,842 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] [2023-04-03 01:02:49,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-03 01:02:49,842 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:02:49,843 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:02:49,843 INFO L85 PathProgramCache]: Analyzing trace with hash 262027922, now seen corresponding path program 1 times [2023-04-03 01:02:49,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:02:49,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827519402] [2023-04-03 01:02:49,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:02:49,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:02:49,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:02:50,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:02:50,005 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:02:50,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827519402] [2023-04-03 01:02:50,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827519402] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:02:50,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:02:50,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-03 01:02:50,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922164463] [2023-04-03 01:02:50,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:02:50,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-03 01:02:50,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:02:50,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-03 01:02:50,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-03 01:02:50,008 INFO L87 Difference]: Start difference. First operand 261 states and 309 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-03 01:02:50,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:02:50,161 INFO L93 Difference]: Finished difference Result 727 states and 886 transitions. [2023-04-03 01:02:50,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-03 01:02:50,162 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 56 [2023-04-03 01:02:50,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:02:50,168 INFO L225 Difference]: With dead ends: 727 [2023-04-03 01:02:50,168 INFO L226 Difference]: Without dead ends: 488 [2023-04-03 01:02:50,169 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 [2023-04-03 01:02:50,178 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 97 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-03 01:02:50,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 531 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-03 01:02:50,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2023-04-03 01:02:50,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 464. [2023-04-03 01:02:50,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 255 states have (on average 1.2745098039215685) internal successors, (325), 296 states have internal predecessors, (325), 116 states have call successors, (116), 100 states have call predecessors, (116), 92 states have return successors, (118), 88 states have call predecessors, (118), 112 states have call successors, (118) [2023-04-03 01:02:50,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 559 transitions. [2023-04-03 01:02:50,214 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 559 transitions. Word has length 56 [2023-04-03 01:02:50,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:02:50,214 INFO L495 AbstractCegarLoop]: Abstraction has 464 states and 559 transitions. [2023-04-03 01:02:50,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-03 01:02:50,214 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 559 transitions. [2023-04-03 01:02:50,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-04-03 01:02:50,217 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:02:50,217 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] [2023-04-03 01:02:50,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-03 01:02:50,217 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:02:50,218 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:02:50,218 INFO L85 PathProgramCache]: Analyzing trace with hash 619025133, now seen corresponding path program 1 times [2023-04-03 01:02:50,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:02:50,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394226568] [2023-04-03 01:02:50,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:02:50,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:02:50,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-03 01:02:50,240 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-03 01:02:50,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-03 01:02:50,271 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-04-03 01:02:50,272 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-03 01:02:50,272 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-03 01:02:50,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-03 01:02:50,276 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-04-03 01:02:50,278 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-03 01:02:50,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.04 01:02:50 BoogieIcfgContainer [2023-04-03 01:02:50,305 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-03 01:02:50,306 INFO L158 Benchmark]: Toolchain (without parser) took 2735.02ms. Allocated memory was 257.9MB in the beginning and 329.3MB in the end (delta: 71.3MB). Free memory was 210.6MB in the beginning and 279.3MB in the end (delta: -68.6MB). Peak memory consumption was 5.3MB. Max. memory is 8.0GB. [2023-04-03 01:02:50,306 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 215.0MB. Free memory is still 160.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-03 01:02:50,306 INFO L158 Benchmark]: CACSL2BoogieTranslator took 301.25ms. Allocated memory is still 257.9MB. Free memory was 210.6MB in the beginning and 191.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-04-03 01:02:50,306 INFO L158 Benchmark]: Boogie Preprocessor took 44.61ms. Allocated memory is still 257.9MB. Free memory was 191.8MB in the beginning and 188.1MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-04-03 01:02:50,306 INFO L158 Benchmark]: RCFGBuilder took 729.52ms. Allocated memory was 257.9MB in the beginning and 329.3MB in the end (delta: 71.3MB). Free memory was 188.1MB in the beginning and 291.1MB in the end (delta: -103.0MB). Peak memory consumption was 72.1MB. Max. memory is 8.0GB. [2023-04-03 01:02:50,306 INFO L158 Benchmark]: TraceAbstraction took 1653.88ms. Allocated memory is still 329.3MB. Free memory was 290.6MB in the beginning and 279.3MB in the end (delta: 11.3MB). Peak memory consumption was 11.9MB. Max. memory is 8.0GB. [2023-04-03 01:02:50,307 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 215.0MB. Free memory is still 160.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 301.25ms. Allocated memory is still 257.9MB. Free memory was 210.6MB in the beginning and 191.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 44.61ms. Allocated memory is still 257.9MB. Free memory was 191.8MB in the beginning and 188.1MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 729.52ms. Allocated memory was 257.9MB in the beginning and 329.3MB in the end (delta: 71.3MB). Free memory was 188.1MB in the beginning and 291.1MB in the end (delta: -103.0MB). Peak memory consumption was 72.1MB. Max. memory is 8.0GB. * TraceAbstraction took 1653.88ms. Allocated memory is still 329.3MB. Free memory was 290.6MB in the beginning and 279.3MB in the end (delta: 11.3MB). Peak memory consumption was 11.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 704]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L424] int waterLevel = 1; [L425] int methaneLevelCritical = 0; [L527] int cleanupTimeShifts = 4; [L779] int pumpRunning = 0; [L780] int systemActive = 1; [L606] int retValue_acc ; [L607] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L611] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L612] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L613] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L655] int retValue_acc ; [L658] retValue_acc = 1 [L659] return (retValue_acc); [L613] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L613] tmp = valid_product() [L615] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L617] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L618] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L597] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L711] int splverifierCounter ; [L712] int tmp ; [L713] int tmp___0 ; [L714] int tmp___1 ; [L715] int tmp___2 ; [L718] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L720] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L722] COND TRUE splverifierCounter < 4 [L728] tmp = __VERIFIER_nondet_int() [L730] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L732] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L442] COND TRUE waterLevel < 2 [L443] waterLevel = waterLevel + 1 [L732] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L738] tmp___0 = __VERIFIER_nondet_int() [L740] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L748] tmp___2 = __VERIFIER_nondet_int() [L750] COND FALSE !(\read(tmp___2)) [L754] tmp___1 = __VERIFIER_nondet_int() [L756] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L758] CALL stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L997] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L1004] systemActive = 0 [L758] RET stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=0, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L765] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L786] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L793] COND FALSE !(\read(systemActive)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L801] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L667] int tmp ; [L668] int tmp___0 ; [L669] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L673] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L463] int retValue_acc ; [L466] retValue_acc = methaneLevelCritical [L467] return (retValue_acc); [L673] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L673] tmp = isMethaneLevelCritical() [L675] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L679] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L495] int retValue_acc ; [L498] retValue_acc = waterLevel [L499] return (retValue_acc); [L679] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L679] tmp___0 = getWaterLevel() [L681] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L683] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L911] int retValue_acc ; [L914] retValue_acc = pumpRunning [L915] return (retValue_acc); [L683] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L683] tmp___1 = isPumpRunning() [L685] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L689] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L704] reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 201 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 408 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 402 mSDsluCounter, 1446 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 918 mSDsCounter, 57 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 492 IncrementalHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 57 mSolverCounterUnsat, 528 mSDtfsCounter, 492 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=464occurred in iteration=4, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 32 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 261 NumberOfCodeBlocks, 261 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 198 ConstructedInterpolants, 0 QuantifiedInterpolants, 360 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-04-03 01:02:50,327 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...