/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_product48.cil.c
--------------------------------------------------------------------------------
This is Ultimate 0.2.3-dev-f954360
[2023-04-03 01:02:37,929 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2023-04-03 01:02:37,931 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2023-04-03 01:02:37,961 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2023-04-03 01:02:37,962 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2023-04-03 01:02:37,963 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2023-04-03 01:02:37,964 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2023-04-03 01:02:37,965 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2023-04-03 01:02:37,967 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2023-04-03 01:02:37,967 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2023-04-03 01:02:37,968 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2023-04-03 01:02:37,970 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2023-04-03 01:02:37,970 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2023-04-03 01:02:37,971 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2023-04-03 01:02:37,972 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2023-04-03 01:02:37,973 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2023-04-03 01:02:37,974 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2023-04-03 01:02:37,975 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2023-04-03 01:02:37,976 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2023-04-03 01:02:37,978 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2023-04-03 01:02:37,978 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2023-04-03 01:02:37,981 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2023-04-03 01:02:37,982 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2023-04-03 01:02:37,983 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2023-04-03 01:02:37,986 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2023-04-03 01:02:37,986 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2023-04-03 01:02:37,986 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2023-04-03 01:02:37,987 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2023-04-03 01:02:37,987 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2023-04-03 01:02:37,988 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2023-04-03 01:02:37,988 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2023-04-03 01:02:37,989 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2023-04-03 01:02:37,990 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2023-04-03 01:02:37,990 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2023-04-03 01:02:37,991 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2023-04-03 01:02:37,991 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2023-04-03 01:02:37,992 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2023-04-03 01:02:37,992 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2023-04-03 01:02:37,993 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2023-04-03 01:02:37,993 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2023-04-03 01:02:37,994 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2023-04-03 01:02:37,996 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 01:02:38,011 INFO L113 SettingsManager]: Loading preferences was successful
[2023-04-03 01:02:38,011 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2023-04-03 01:02:38,012 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-04-03 01:02:38,012 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-04-03 01:02:38,012 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-04-03 01:02:38,013 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-04-03 01:02:38,013 INFO L138 SettingsManager]: * User list type=DISABLED
[2023-04-03 01:02:38,013 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults:
[2023-04-03 01:02:38,013 INFO L138 SettingsManager]: * Explicit value domain=true
[2023-04-03 01:02:38,013 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain
[2023-04-03 01:02:38,014 INFO L138 SettingsManager]: * Octagon Domain=false
[2023-04-03 01:02:38,014 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain
[2023-04-03 01:02:38,014 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true
[2023-04-03 01:02:38,014 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true
[2023-04-03 01:02:38,014 INFO L138 SettingsManager]: * Interval Domain=false
[2023-04-03 01:02:38,014 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults:
[2023-04-03 01:02:38,015 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer
[2023-04-03 01:02:38,015 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC
[2023-04-03 01:02:38,015 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-04-03 01:02:38,015 INFO L138 SettingsManager]: * sizeof long=4
[2023-04-03 01:02:38,016 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2023-04-03 01:02:38,016 INFO L138 SettingsManager]: * sizeof POINTER=4
[2023-04-03 01:02:38,016 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2023-04-03 01:02:38,016 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-04-03 01:02:38,016 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-04-03 01:02:38,016 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-04-03 01:02:38,017 INFO L138 SettingsManager]: * sizeof long double=12
[2023-04-03 01:02:38,017 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2023-04-03 01:02:38,017 INFO L138 SettingsManager]: * Use constant arrays=true
[2023-04-03 01:02:38,017 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-04-03 01:02:38,017 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-04-03 01:02:38,018 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2023-04-03 01:02:38,018 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-04-03 01:02:38,018 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-04-03 01:02:38,018 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES
[2023-04-03 01:02:38,018 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-04-03 01:02:38,018 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2023-04-03 01:02:38,019 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN
[2023-04-03 01:02:38,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-04-03 01:02:38,019 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-04-03 01:02:38,019 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2023-04-03 01:02:38,019 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain
[2023-04-03 01:02:38,220 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-04-03 01:02:38,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-04-03 01:02:38,244 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-04-03 01:02:38,246 INFO L271 PluginConnector]: Initializing CDTParser...
[2023-04-03 01:02:38,247 INFO L275 PluginConnector]: CDTParser initialized
[2023-04-03 01:02:38,248 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c
[2023-04-03 01:02:39,438 INFO L500 CDTParser]: Created temporary CDT project at NULL
[2023-04-03 01:02:39,699 INFO L351 CDTParser]: Found 1 translation units.
[2023-04-03 01:02:39,704 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c
[2023-04-03 01:02:39,713 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87402dc9d/b6967b55a482410bb2a5a40de72c4b2b/FLAG845e53326
[2023-04-03 01:02:39,723 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87402dc9d/b6967b55a482410bb2a5a40de72c4b2b
[2023-04-03 01:02:39,725 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-04-03 01:02:39,726 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2023-04-03 01:02:39,727 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-04-03 01:02:39,727 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-04-03 01:02:39,734 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-04-03 01:02:39,735 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 01:02:39" (1/1) ...
[2023-04-03 01:02:39,736 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27314e43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:02:39, skipping insertion in model container
[2023-04-03 01:02:39,736 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 01:02:39" (1/1) ...
[2023-04-03 01:02:39,744 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2023-04-03 01:02:39,784 INFO L178 MainTranslator]: Built tables and reachable declarations
[2023-04-03 01:02:39,895 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_product48.cil.c[1605,1618]
[2023-04-03 01:02:39,984 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-04-03 01:02:39,998 INFO L203 MainTranslator]: Completed pre-run
[2023-04-03 01:02:40,016 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_product48.cil.c[1605,1618]
[2023-04-03 01:02:40,097 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-04-03 01:02:40,128 INFO L208 MainTranslator]: Completed translation
[2023-04-03 01:02:40,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:02:40 WrapperNode
[2023-04-03 01:02:40,129 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-04-03 01:02:40,130 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-04-03 01:02:40,130 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2023-04-03 01:02:40,130 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2023-04-03 01:02:40,141 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:02:40" (1/1) ...
[2023-04-03 01:02:40,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:02:40" (1/1) ...
[2023-04-03 01:02:40,167 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:02:40" (1/1) ...
[2023-04-03 01:02:40,168 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:02:40" (1/1) ...
[2023-04-03 01:02:40,202 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:02:40" (1/1) ...
[2023-04-03 01:02:40,207 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:02:40" (1/1) ...
[2023-04-03 01:02:40,220 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:02:40" (1/1) ...
[2023-04-03 01:02:40,224 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:02:40" (1/1) ...
[2023-04-03 01:02:40,228 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-04-03 01:02:40,229 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-04-03 01:02:40,229 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2023-04-03 01:02:40,229 INFO L275 PluginConnector]: RCFGBuilder initialized
[2023-04-03 01:02:40,230 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:02:40" (1/1) ...
[2023-04-03 01:02:40,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-04-03 01:02:40,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-04-03 01:02:40,254 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 01:02:40,265 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 01:02:40,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2023-04-03 01:02:40,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-04-03 01:02:40,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2023-04-03 01:02:40,289 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error
[2023-04-03 01:02:40,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2023-04-03 01:02:40,289 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one
[2023-04-03 01:02:40,290 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features
[2023-04-03 01:02:40,290 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers
[2023-04-03 01:02:40,290 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product
[2023-04-03 01:02:40,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2023-04-03 01:02:40,290 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2023-04-03 01:02:40,290 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise
[2023-04-03 01:02:40,290 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2023-04-03 01:02:40,291 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2023-04-03 01:02:40,291 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment
[2023-04-03 01:02:40,291 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2023-04-03 01:02:40,291 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2023-04-03 01:02:40,291 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift
[2023-04-03 01:02:40,291 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2023-04-03 01:02:40,291 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery
[2023-04-03 01:02:40,291 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment
[2023-04-03 01:02:40,292 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor
[2023-04-03 01:02:40,292 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump
[2023-04-03 01:02:40,292 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump
[2023-04-03 01:02:40,292 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2023-04-03 01:02:40,292 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2023-04-03 01:02:40,292 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump
[2023-04-03 01:02:40,292 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2023-04-03 01:02:40,292 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem
[2023-04-03 01:02:40,293 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem
[2023-04-03 01:02:40,293 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup
[2023-04-03 01:02:40,293 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2
[2023-04-03 01:02:40,293 INFO L138 BoogieDeclarations]: Found implementation of procedure setup
[2023-04-03 01:02:40,293 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest
[2023-04-03 01:02:40,293 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2023-04-03 01:02:40,293 INFO L138 BoogieDeclarations]: Found implementation of procedure test
[2023-04-03 01:02:40,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2023-04-03 01:02:40,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2023-04-03 01:02:40,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2023-04-03 01:02:40,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2023-04-03 01:02:40,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2023-04-03 01:02:40,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2023-04-03 01:02:40,294 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2023-04-03 01:02:40,294 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2023-04-03 01:02:40,295 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error
[2023-04-03 01:02:40,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-04-03 01:02:40,295 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2023-04-03 01:02:40,295 INFO L130 BoogieDeclarations]: Found specification of procedure printf
[2023-04-03 01:02:40,295 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail
[2023-04-03 01:02:40,295 INFO L130 BoogieDeclarations]: Found specification of procedure select_one
[2023-04-03 01:02:40,295 INFO L130 BoogieDeclarations]: Found specification of procedure select_features
[2023-04-03 01:02:40,295 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers
[2023-04-03 01:02:40,295 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product
[2023-04-03 01:02:40,296 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning
[2023-04-03 01:02:40,296 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2023-04-03 01:02:40,296 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel
[2023-04-03 01:02:40,296 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2023-04-03 01:02:40,296 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2023-04-03 01:02:40,296 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise
[2023-04-03 01:02:40,296 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2023-04-03 01:02:40,296 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment
[2023-04-03 01:02:40,296 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2023-04-03 01:02:40,297 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift
[2023-04-03 01:02:40,297 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump
[2023-04-03 01:02:40,297 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump
[2023-04-03 01:02:40,297 INFO L130 BoogieDeclarations]: Found specification of procedure printPump
[2023-04-03 01:02:40,297 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem
[2023-04-03 01:02:40,297 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem
[2023-04-03 01:02:40,297 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment
[2023-04-03 01:02:40,297 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2023-04-03 01:02:40,297 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2023-04-03 01:02:40,297 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery
[2023-04-03 01:02:40,298 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2023-04-03 01:02:40,298 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor
[2023-04-03 01:02:40,298 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup
[2023-04-03 01:02:40,298 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2
[2023-04-03 01:02:40,298 INFO L130 BoogieDeclarations]: Found specification of procedure setup
[2023-04-03 01:02:40,298 INFO L130 BoogieDeclarations]: Found specification of procedure test
[2023-04-03 01:02:40,298 INFO L130 BoogieDeclarations]: Found specification of procedure runTest
[2023-04-03 01:02:40,298 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2023-04-03 01:02:40,298 INFO L130 BoogieDeclarations]: Found specification of procedure malloc
[2023-04-03 01:02:40,299 INFO L130 BoogieDeclarations]: Found specification of procedure free
[2023-04-03 01:02:40,299 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2023-04-03 01:02:40,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2023-04-03 01:02:40,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2023-04-03 01:02:40,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2023-04-03 01:02:40,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2023-04-03 01:02:40,299 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2023-04-03 01:02:40,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-04-03 01:02:40,299 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2023-04-03 01:02:40,300 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2023-04-03 01:02:40,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2023-04-03 01:02:40,300 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2023-04-03 01:02:40,300 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2023-04-03 01:02:40,300 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2023-04-03 01:02:40,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2023-04-03 01:02:40,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2023-04-03 01:02:40,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-04-03 01:02:40,445 INFO L236 CfgBuilder]: Building ICFG
[2023-04-03 01:02:40,459 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-04-03 01:02:40,959 INFO L277 CfgBuilder]: Performing block encoding
[2023-04-03 01:02:41,098 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-04-03 01:02:41,100 INFO L302 CfgBuilder]: Removed 5 assume(true) statements.
[2023-04-03 01:02:41,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 01:02:41 BoogieIcfgContainer
[2023-04-03 01:02:41,103 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-04-03 01:02:41,105 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-04-03 01:02:41,106 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2023-04-03 01:02:41,108 INFO L275 PluginConnector]: TraceAbstraction initialized
[2023-04-03 01:02:41,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.04 01:02:39" (1/3) ...
[2023-04-03 01:02:41,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fdcebcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 01:02:41, skipping insertion in model container
[2023-04-03 01:02:41,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:02:40" (2/3) ...
[2023-04-03 01:02:41,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fdcebcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 01:02:41, skipping insertion in model container
[2023-04-03 01:02:41,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 01:02:41" (3/3) ...
[2023-04-03 01:02:41,110 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product48.cil.c
[2023-04-03 01:02:41,126 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-04-03 01:02:41,126 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-04-03 01:02:41,178 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-04-03 01:02:41,183 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;@30d65e86, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-04-03 01:02:41,184 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-04-03 01:02:41,188 INFO L276 IsEmpty]: Start isEmpty. Operand has 159 states, 74 states have (on average 1.2837837837837838) internal successors, (95), 90 states have internal predecessors, (95), 51 states have call successors, (51), 31 states have call predecessors, (51), 31 states have return successors, (51), 46 states have call predecessors, (51), 51 states have call successors, (51)
[2023-04-03 01:02:41,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48
[2023-04-03 01:02:41,196 INFO L187 NwaCegarLoop]: Found error trace
[2023-04-03 01:02:41,196 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 01:02:41,197 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-04-03 01:02:41,201 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-04-03 01:02:41,201 INFO L85 PathProgramCache]: Analyzing trace with hash 2132965764, now seen corresponding path program 1 times
[2023-04-03 01:02:41,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2023-04-03 01:02:41,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714299619]
[2023-04-03 01:02:41,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-03 01:02:41,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-04-03 01:02:41,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-03 01:02:41,452 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 01:02:41,452 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2023-04-03 01:02:41,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714299619]
[2023-04-03 01:02:41,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714299619] provided 1 perfect and 0 imperfect interpolant sequences
[2023-04-03 01:02:41,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-04-03 01:02:41,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-04-03 01:02:41,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238235424]
[2023-04-03 01:02:41,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-04-03 01:02:41,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-04-03 01:02:41,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2023-04-03 01:02:41,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-04-03 01:02:41,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-04-03 01:02:41,499 INFO L87 Difference]: Start difference. First operand has 159 states, 74 states have (on average 1.2837837837837838) internal successors, (95), 90 states have internal predecessors, (95), 51 states have call successors, (51), 31 states have call predecessors, (51), 31 states have return successors, (51), 46 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 01:02:41,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-04-03 01:02:41,574 INFO L93 Difference]: Finished difference Result 251 states and 308 transitions.
[2023-04-03 01:02:41,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2023-04-03 01:02:41,579 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 01:02:41,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-04-03 01:02:41,591 INFO L225 Difference]: With dead ends: 251
[2023-04-03 01:02:41,591 INFO L226 Difference]: Without dead ends: 126
[2023-04-03 01:02:41,596 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 01:02:41,602 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-04-03 01:02:41,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 141 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-04-03 01:02:41,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states.
[2023-04-03 01:02:41,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126.
[2023-04-03 01:02:41,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 65 states have (on average 1.2461538461538462) internal successors, (81), 78 states have internal predecessors, (81), 36 states have call successors, (36), 29 states have call predecessors, (36), 24 states have return successors, (31), 26 states have call predecessors, (31), 31 states have call successors, (31)
[2023-04-03 01:02:41,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 148 transitions.
[2023-04-03 01:02:41,665 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 148 transitions. Word has length 47
[2023-04-03 01:02:41,666 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-04-03 01:02:41,666 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 148 transitions.
[2023-04-03 01:02:41,666 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 01:02:41,667 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 148 transitions.
[2023-04-03 01:02:41,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49
[2023-04-03 01:02:41,675 INFO L187 NwaCegarLoop]: Found error trace
[2023-04-03 01:02:41,676 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 01:02:41,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-04-03 01:02:41,676 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-04-03 01:02:41,677 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-04-03 01:02:41,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1560439774, now seen corresponding path program 1 times
[2023-04-03 01:02:41,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2023-04-03 01:02:41,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4466238]
[2023-04-03 01:02:41,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-03 01:02:41,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-04-03 01:02:41,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-03 01:02:41,798 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 01:02:41,798 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2023-04-03 01:02:41,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4466238]
[2023-04-03 01:02:41,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4466238] provided 1 perfect and 0 imperfect interpolant sequences
[2023-04-03 01:02:41,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-04-03 01:02:41,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-04-03 01:02:41,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991117902]
[2023-04-03 01:02:41,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-04-03 01:02:41,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-04-03 01:02:41,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2023-04-03 01:02:41,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-04-03 01:02:41,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-04-03 01:02:41,801 INFO L87 Difference]: Start difference. First operand 126 states and 148 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 01:02:41,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-04-03 01:02:41,840 INFO L93 Difference]: Finished difference Result 199 states and 233 transitions.
[2023-04-03 01:02:41,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-04-03 01:02:41,840 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 01:02:41,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-04-03 01:02:41,843 INFO L225 Difference]: With dead ends: 199
[2023-04-03 01:02:41,843 INFO L226 Difference]: Without dead ends: 118
[2023-04-03 01:02:41,849 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 01:02:41,850 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 11 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-04-03 01:02:41,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 225 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-04-03 01:02:41,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states.
[2023-04-03 01:02:41,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118.
[2023-04-03 01:02:41,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 60 states have (on average 1.25) internal successors, (75), 73 states have internal predecessors, (75), 33 states have call successors, (33), 28 states have call predecessors, (33), 24 states have return successors, (29), 24 states have call predecessors, (29), 29 states have call successors, (29)
[2023-04-03 01:02:41,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 137 transitions.
[2023-04-03 01:02:41,863 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 137 transitions. Word has length 48
[2023-04-03 01:02:41,863 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-04-03 01:02:41,863 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 137 transitions.
[2023-04-03 01:02:41,863 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 01:02:41,863 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 137 transitions.
[2023-04-03 01:02:41,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53
[2023-04-03 01:02:41,865 INFO L187 NwaCegarLoop]: Found error trace
[2023-04-03 01:02:41,865 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]
[2023-04-03 01:02:41,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-04-03 01:02:41,865 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-04-03 01:02:41,866 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-04-03 01:02:41,866 INFO L85 PathProgramCache]: Analyzing trace with hash -2027322284, now seen corresponding path program 1 times
[2023-04-03 01:02:41,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2023-04-03 01:02:41,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325656624]
[2023-04-03 01:02:41,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-03 01:02:41,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-04-03 01:02:41,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-03 01:02:42,114 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 01:02:42,114 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2023-04-03 01:02:42,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325656624]
[2023-04-03 01:02:42,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325656624] provided 1 perfect and 0 imperfect interpolant sequences
[2023-04-03 01:02:42,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-04-03 01:02:42,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-04-03 01:02:42,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781274119]
[2023-04-03 01:02:42,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-04-03 01:02:42,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-04-03 01:02:42,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2023-04-03 01:02:42,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-04-03 01:02:42,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2023-04-03 01:02:42,120 INFO L87 Difference]: Start difference. First operand 118 states and 137 transitions. Second operand has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 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 01:02:42,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-04-03 01:02:42,525 INFO L93 Difference]: Finished difference Result 360 states and 433 transitions.
[2023-04-03 01:02:42,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2023-04-03 01:02:42,526 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 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 52
[2023-04-03 01:02:42,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-04-03 01:02:42,533 INFO L225 Difference]: With dead ends: 360
[2023-04-03 01:02:42,534 INFO L226 Difference]: Without dead ends: 264
[2023-04-03 01:02:42,537 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 01:02:42,545 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 224 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2023-04-03 01:02:42,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 592 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2023-04-03 01:02:42,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states.
[2023-04-03 01:02:42,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 252.
[2023-04-03 01:02:42,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 135 states have (on average 1.2814814814814814) internal successors, (173), 160 states have internal predecessors, (173), 66 states have call successors, (66), 56 states have call predecessors, (66), 50 states have return successors, (63), 50 states have call predecessors, (63), 62 states have call successors, (63)
[2023-04-03 01:02:42,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 302 transitions.
[2023-04-03 01:02:42,577 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 302 transitions. Word has length 52
[2023-04-03 01:02:42,577 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-04-03 01:02:42,577 INFO L495 AbstractCegarLoop]: Abstraction has 252 states and 302 transitions.
[2023-04-03 01:02:42,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 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 01:02:42,577 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 302 transitions.
[2023-04-03 01:02:42,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57
[2023-04-03 01:02:42,579 INFO L187 NwaCegarLoop]: Found error trace
[2023-04-03 01:02:42,579 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 01:02:42,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-04-03 01:02:42,580 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-04-03 01:02:42,580 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-04-03 01:02:42,580 INFO L85 PathProgramCache]: Analyzing trace with hash -996786975, now seen corresponding path program 1 times
[2023-04-03 01:02:42,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2023-04-03 01:02:42,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495781419]
[2023-04-03 01:02:42,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-03 01:02:42,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-04-03 01:02:42,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-03 01:02:42,774 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 01:02:42,775 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2023-04-03 01:02:42,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495781419]
[2023-04-03 01:02:42,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495781419] provided 1 perfect and 0 imperfect interpolant sequences
[2023-04-03 01:02:42,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-04-03 01:02:42,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-04-03 01:02:42,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427405408]
[2023-04-03 01:02:42,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-04-03 01:02:42,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-04-03 01:02:42,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2023-04-03 01:02:42,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-04-03 01:02:42,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2023-04-03 01:02:42,778 INFO L87 Difference]: Start difference. First operand 252 states and 302 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 01:02:42,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-04-03 01:02:42,948 INFO L93 Difference]: Finished difference Result 694 states and 859 transitions.
[2023-04-03 01:02:42,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2023-04-03 01:02:42,949 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 01:02:42,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-04-03 01:02:42,952 INFO L225 Difference]: With dead ends: 694
[2023-04-03 01:02:42,952 INFO L226 Difference]: Without dead ends: 464
[2023-04-03 01:02:42,953 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 01:02:42,954 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 94 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-04-03 01:02:42,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 525 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-04-03 01:02:42,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states.
[2023-04-03 01:02:42,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 446.
[2023-04-03 01:02:42,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 245 states have (on average 1.2857142857142858) internal successors, (315), 288 states have internal predecessors, (315), 114 states have call successors, (114), 94 states have call predecessors, (114), 86 states have return successors, (116), 86 states have call predecessors, (116), 110 states have call successors, (116)
[2023-04-03 01:02:42,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 545 transitions.
[2023-04-03 01:02:42,993 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 545 transitions. Word has length 56
[2023-04-03 01:02:42,993 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-04-03 01:02:42,993 INFO L495 AbstractCegarLoop]: Abstraction has 446 states and 545 transitions.
[2023-04-03 01:02:42,993 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 01:02:42,993 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 545 transitions.
[2023-04-03 01:02:42,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60
[2023-04-03 01:02:42,995 INFO L187 NwaCegarLoop]: Found error trace
[2023-04-03 01:02:42,996 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 01:02:42,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-04-03 01:02:42,996 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-04-03 01:02:42,996 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-04-03 01:02:42,996 INFO L85 PathProgramCache]: Analyzing trace with hash 912867307, now seen corresponding path program 1 times
[2023-04-03 01:02:42,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2023-04-03 01:02:42,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677680271]
[2023-04-03 01:02:42,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-03 01:02:42,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-04-03 01:02:43,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-04-03 01:02:43,011 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-04-03 01:02:43,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-04-03 01:02:43,045 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace
[2023-04-03 01:02:43,045 INFO L360 BasicCegarLoop]: Counterexample is feasible
[2023-04-03 01:02:43,046 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2023-04-03 01:02:43,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2023-04-03 01:02:43,051 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1]
[2023-04-03 01:02:43,054 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2023-04-03 01:02:43,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.04 01:02:43 BoogieIcfgContainer
[2023-04-03 01:02:43,089 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-04-03 01:02:43,089 INFO L158 Benchmark]: Toolchain (without parser) took 3363.01ms. Allocated memory is still 312.5MB. Free memory was 266.7MB in the beginning and 215.2MB in the end (delta: 51.5MB). Peak memory consumption was 52.2MB. Max. memory is 8.0GB.
[2023-04-03 01:02:43,089 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 187.7MB. Free memory is still 139.8MB. There was no memory consumed. Max. memory is 8.0GB.
[2023-04-03 01:02:43,090 INFO L158 Benchmark]: CACSL2BoogieTranslator took 401.85ms. Allocated memory is still 312.5MB. Free memory was 266.4MB in the beginning and 247.8MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB.
[2023-04-03 01:02:43,090 INFO L158 Benchmark]: Boogie Preprocessor took 98.33ms. Allocated memory is still 312.5MB. Free memory was 247.8MB in the beginning and 244.3MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB.
[2023-04-03 01:02:43,090 INFO L158 Benchmark]: RCFGBuilder took 874.19ms. Allocated memory is still 312.5MB. Free memory was 244.3MB in the beginning and 253.8MB in the end (delta: -9.4MB). Peak memory consumption was 38.3MB. Max. memory is 8.0GB.
[2023-04-03 01:02:43,091 INFO L158 Benchmark]: TraceAbstraction took 1983.27ms. Allocated memory is still 312.5MB. Free memory was 253.2MB in the beginning and 215.2MB in the end (delta: 38.1MB). Peak memory consumption was 38.1MB. Max. memory is 8.0GB.
[2023-04-03 01:02:43,092 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.13ms. Allocated memory is still 187.7MB. Free memory is still 139.8MB. There was no memory consumed. Max. memory is 8.0GB.
* CACSL2BoogieTranslator took 401.85ms. Allocated memory is still 312.5MB. Free memory was 266.4MB in the beginning and 247.8MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB.
* Boogie Preprocessor took 98.33ms. Allocated memory is still 312.5MB. Free memory was 247.8MB in the beginning and 244.3MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB.
* RCFGBuilder took 874.19ms. Allocated memory is still 312.5MB. Free memory was 244.3MB in the beginning and 253.8MB in the end (delta: -9.4MB). Peak memory consumption was 38.3MB. Max. memory is 8.0GB.
* TraceAbstraction took 1983.27ms. Allocated memory is still 312.5MB. Free memory was 253.2MB in the beginning and 215.2MB in the end (delta: 38.1MB). Peak memory consumption was 38.1MB. Max. memory is 8.0GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- CounterExampleResult [Line: 54]: a call to reach_error is reachable
a call to reach_error is reachable
We found a FailurePath:
[L139] int waterLevel = 1;
[L140] int methaneLevelCritical = 0;
[L239] int pumpRunning = 0;
[L240] int systemActive = 1;
[L457] int cleanupTimeShifts = 4;
[L792] static struct __ACC__ERR *head = (struct __ACC__ERR *)0;
[L531] int retValue_acc ;
[L532] 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]
[L536] 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]
[L537] 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]
[L538] 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]
[L88] int retValue_acc ;
[L91] retValue_acc = 1
[L92] return (retValue_acc);
[L538] 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]
[L538] tmp = valid_product()
[L540] 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]
[L542] 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]
[L543] 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]
[L525] 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]
[L555] int splverifierCounter ;
[L556] int tmp ;
[L557] int tmp___0 ;
[L558] int tmp___1 ;
[L559] int tmp___2 ;
[L562] 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]
[L564] 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]
[L566] COND TRUE splverifierCounter < 4
[L572] tmp = __VERIFIER_nondet_int()
[L574] 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]
[L576] 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]
[L157] COND TRUE waterLevel < 2
[L158] waterLevel = waterLevel + 1
[L576] 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]
[L582] tmp___0 = __VERIFIER_nondet_int()
[L584] 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]
[L592] tmp___2 = __VERIFIER_nondet_int()
[L594] COND FALSE !(\read(tmp___2))
[L600] tmp___1 = __VERIFIER_nondet_int()
[L602] 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]
[L604] 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]
[L437] 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]
[L444] systemActive = 0
[L604] 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]
[L611] 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]
[L246] 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]
[L253] 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]
[L261] 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]
[L101] int tmp ;
[L102] int tmp___0 ;
[L103] 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]
[L107] 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]
[L178] int retValue_acc ;
[L181] retValue_acc = methaneLevelCritical
[L182] return (retValue_acc);
[L107] 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]
[L107] tmp = isMethaneLevelCritical()
[L109] 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]
[L113] 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]
[L210] int retValue_acc ;
[L213] retValue_acc = waterLevel
[L214] return (retValue_acc);
[L113] 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]
[L113] tmp___0 = getWaterLevel()
[L115] 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]
[L117] 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]
[L370] int retValue_acc ;
[L373] retValue_acc = pumpRunning
[L374] return (retValue_acc);
[L117] 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]
[L117] tmp___1 = isPumpRunning()
[L119] 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]
[L123] 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]
[L54] 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 42 procedures, 198 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 336 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 329 mSDsluCounter, 1483 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 959 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 483 IncrementalHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 524 mSDtfsCounter, 483 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=446occurred in iteration=4, InterpolantAutomatonStates: 19, 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, 30 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 262 NumberOfCodeBlocks, 262 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 199 ConstructedInterpolants, 0 QuantifiedInterpolants, 332 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 01:02:43,106 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0
Received shutdown request...