/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration false -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_productSimulator.cil.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-24 14:44:59,803 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-24 14:44:59,807 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 14:44:59,848 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 14:44:59,848 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 14:44:59,859 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 14:44:59,860 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 14:44:59,863 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 14:44:59,866 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 14:44:59,867 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 14:44:59,869 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 14:44:59,871 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 14:44:59,871 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 14:44:59,872 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 14:44:59,876 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 14:44:59,878 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 14:44:59,880 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 14:44:59,883 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 14:44:59,886 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 14:44:59,890 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 14:44:59,895 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 14:44:59,896 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 14:44:59,897 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 14:44:59,898 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 14:44:59,903 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 14:44:59,903 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 14:44:59,904 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 14:44:59,907 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 14:44:59,908 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 14:44:59,911 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 14:44:59,911 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 14:44:59,912 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 14:44:59,913 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 14:44:59,914 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 14:44:59,915 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 14:44:59,915 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 14:44:59,916 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 14:44:59,916 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 14:44:59,917 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 14:44:59,918 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 14:44:59,919 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 14:44:59,920 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-24 14:44:59,971 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-24 14:44:59,971 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 14:44:59,974 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 14:44:59,974 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-24 14:44:59,974 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-24 14:44:59,974 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 14:44:59,975 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-24 14:44:59,975 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-24 14:44:59,975 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-24 14:44:59,976 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-24 14:44:59,977 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 14:44:59,977 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 14:44:59,977 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 14:44:59,978 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-24 14:44:59,978 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-24 14:44:59,978 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-24 14:44:59,978 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-24 14:44:59,978 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 14:44:59,979 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-24 14:44:59,979 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-24 14:44:59,979 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-24 14:44:59,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 14:44:59,980 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 14:44:59,981 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 14:44:59,981 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 14:44:59,981 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-24 14:44:59,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 14:44:59,982 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 14:44:59,982 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-24 14:44:59,982 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> false
[2020-09-24 14:45:00,402 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 14:45:00,420 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 14:45:00,425 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 14:45:00,426 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-24 14:45:00,427 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-24 14:45:00,428 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_productSimulator.cil.c
[2020-09-24 14:45:00,517 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8d36650e8/727da26983c24106bb787eef3a2140da/FLAG4f5a12c37
[2020-09-24 14:45:01,148 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-24 14:45:01,149 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_productSimulator.cil.c
[2020-09-24 14:45:01,179 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8d36650e8/727da26983c24106bb787eef3a2140da/FLAG4f5a12c37
[2020-09-24 14:45:01,384 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8d36650e8/727da26983c24106bb787eef3a2140da
[2020-09-24 14:45:01,397 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 14:45:01,402 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 14:45:01,403 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 14:45:01,403 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 14:45:01,407 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 14:45:01,409 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 02:45:01" (1/1) ...
[2020-09-24 14:45:01,412 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11cafb76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:45:01, skipping insertion in model container
[2020-09-24 14:45:01,412 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 02:45:01" (1/1) ...
[2020-09-24 14:45:01,419 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-24 14:45:01,475 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-24 14:45:01,989 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-24 14:45:02,013 INFO L203 MainTranslator]: Completed pre-run
[2020-09-24 14:45:02,096 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-24 14:45:02,150 INFO L208 MainTranslator]: Completed translation
[2020-09-24 14:45:02,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:45:02 WrapperNode
[2020-09-24 14:45:02,151 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 14:45:02,152 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 14:45:02,152 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 14:45:02,152 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 14:45:02,171 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:45:02" (1/1) ...
[2020-09-24 14:45:02,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:45:02" (1/1) ...
[2020-09-24 14:45:02,196 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:45:02" (1/1) ...
[2020-09-24 14:45:02,197 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:45:02" (1/1) ...
[2020-09-24 14:45:02,232 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:45:02" (1/1) ...
[2020-09-24 14:45:02,245 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:45:02" (1/1) ...
[2020-09-24 14:45:02,251 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:45:02" (1/1) ...
[2020-09-24 14:45:02,269 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 14:45:02,270 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 14:45:02,270 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 14:45:02,271 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-24 14:45:02,276 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:45:02" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 14:45:02,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 14:45:02,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 14:45:02,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 14:45:02,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 14:45:02,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 14:45:02,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 14:45:02,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 14:45:02,390 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 14:45:02,390 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 14:45:02,390 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 14:45:02,392 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 14:45:02,392 INFO L138 BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 14:45:02,392 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 14:45:02,392 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 14:45:02,393 INFO L138 BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 14:45:02,394 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 14:45:02,394 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__highWaterSensor
[2020-09-24 14:45:02,394 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__highWaterSensor
[2020-09-24 14:45:02,394 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__lowWaterSensor
[2020-09-24 14:45:02,395 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__lowWaterSensor
[2020-09-24 14:45:02,395 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__methaneAlarm
[2020-09-24 14:45:02,395 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__methaneAlarm
[2020-09-24 14:45:02,395 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 14:45:02,395 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__before__methaneQuery
[2020-09-24 14:45:02,396 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__role__methaneQuery
[2020-09-24 14:45:02,396 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 14:45:02,397 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 14:45:02,397 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 14:45:02,397 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 14:45:02,398 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 14:45:02,398 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-09-24 14:45:02,398 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-24 14:45:02,398 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-24 14:45:02,398 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-24 14:45:02,398 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 14:45:02,399 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 14:45:02,399 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 14:45:02,399 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 14:45:02,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-24 14:45:02,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 14:45:02,400 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 14:45:02,400 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 14:45:02,400 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 14:45:02,400 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 14:45:02,400 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 14:45:02,400 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 14:45:02,400 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-09-24 14:45:02,402 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-24 14:45:02,402 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 14:45:02,402 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 14:45:02,403 INFO L130 BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 14:45:02,403 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 14:45:02,403 INFO L130 BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 14:45:02,403 INFO L130 BoogieDeclarations]: Found specification of procedure free
[2020-09-24 14:45:02,403 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 14:45:02,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 14:45:02,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 14:45:02,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 14:45:02,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 14:45:02,405 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 14:45:02,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 14:45:02,405 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 14:45:02,405 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 14:45:02,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 14:45:02,406 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 14:45:02,406 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 14:45:02,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 14:45:02,406 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 14:45:02,406 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 14:45:02,406 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 14:45:02,406 INFO L130 BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 14:45:02,407 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 14:45:02,407 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 14:45:02,408 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 14:45:02,408 INFO L130 BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 14:45:02,408 INFO L130 BoogieDeclarations]: Found specification of procedure test
[2020-09-24 14:45:02,409 INFO L130 BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 14:45:02,409 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 14:45:02,410 INFO L130 BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 14:45:02,410 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 14:45:02,410 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-24 14:45:02,410 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-24 14:45:02,410 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-24 14:45:02,411 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 14:45:02,411 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 14:45:02,411 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 14:45:02,411 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-09-24 14:45:02,411 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-24 14:45:02,411 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 14:45:02,412 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 14:45:02,412 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 14:45:02,412 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-24 14:45:02,412 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 14:45:02,412 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__highWaterSensor
[2020-09-24 14:45:02,412 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-09-24 14:45:02,413 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__highWaterSensor
[2020-09-24 14:45:02,413 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__lowWaterSensor
[2020-09-24 14:45:02,413 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-24 14:45:02,413 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__lowWaterSensor
[2020-09-24 14:45:02,413 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__methaneAlarm
[2020-09-24 14:45:02,413 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 14:45:02,414 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__methaneAlarm
[2020-09-24 14:45:02,414 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__before__methaneQuery
[2020-09-24 14:45:02,414 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__role__methaneQuery
[2020-09-24 14:45:02,414 INFO L130 BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 14:45:02,414 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 14:45:02,414 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 14:45:02,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 14:45:02,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 14:45:02,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 14:45:03,743 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 14:45:03,744 INFO L295 CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 14:45:03,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 02:45:03 BoogieIcfgContainer
[2020-09-24 14:45:03,762 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 14:45:03,763 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 14:45:03,764 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 14:45:03,769 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-24 14:45:03,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 02:45:01" (1/3) ...
[2020-09-24 14:45:03,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fd0ba21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 02:45:03, skipping insertion in model container
[2020-09-24 14:45:03,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:45:02" (2/3) ...
[2020-09-24 14:45:03,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fd0ba21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 02:45:03, skipping insertion in model container
[2020-09-24 14:45:03,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 02:45:03" (3/3) ...
[2020-09-24 14:45:03,776 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_productSimulator.cil.c
[2020-09-24 14:45:03,789 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 14:45:03,804 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 14:45:03,827 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 14:45:03,858 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-24 14:45:03,858 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-24 14:45:03,858 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 14:45:03,859 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 14:45:03,859 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 14:45:03,859 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-24 14:45:03,859 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 14:45:03,859 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 14:45:03,892 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states.
[2020-09-24 14:45:03,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236
[2020-09-24 14:45:03,916 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 14:45:03,918 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 14:45:03,918 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 14:45:03,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 14:45:03,926 INFO L82 PathProgramCache]: Analyzing trace with hash 103979020, now seen corresponding path program 1 times
[2020-09-24 14:45:03,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 14:45:03,938 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [795182507]
[2020-09-24 14:45:03,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 14:45:04,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:04,848 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 208
[2020-09-24 14:45:04,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 14:45:04,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:04,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91
[2020-09-24 14:45:05,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:05,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95
[2020-09-24 14:45:05,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:05,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2020-09-24 14:45:05,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:05,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13
[2020-09-24 14:45:05,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:05,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25
[2020-09-24 14:45:05,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:05,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2020-09-24 14:45:05,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:05,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49
[2020-09-24 14:45:05,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:05,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61
[2020-09-24 14:45:05,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:05,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171
[2020-09-24 14:45:05,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:05,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181
[2020-09-24 14:45:05,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:05,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203
[2020-09-24 14:45:05,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:05,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213
[2020-09-24 14:45:05,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:05,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223
[2020-09-24 14:45:05,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:05,156 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked.
[2020-09-24 14:45:05,157 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [795182507]
[2020-09-24 14:45:05,159 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 14:45:05,160 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-24 14:45:05,161 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734801217]
[2020-09-24 14:45:05,168 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-24 14:45:05,168 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 14:45:05,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-24 14:45:05,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-09-24 14:45:05,189 INFO L87 Difference]: Start difference. First operand 426 states. Second operand 5 states.
[2020-09-24 14:45:07,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 14:45:07,731 INFO L93 Difference]: Finished difference Result 688 states and 831 transitions.
[2020-09-24 14:45:07,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-09-24 14:45:07,734 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 235
[2020-09-24 14:45:07,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 14:45:07,758 INFO L225 Difference]: With dead ends: 688
[2020-09-24 14:45:07,758 INFO L226 Difference]: Without dead ends: 433
[2020-09-24 14:45:07,764 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30
[2020-09-24 14:45:07,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states.
[2020-09-24 14:45:07,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 375.
[2020-09-24 14:45:07,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states.
[2020-09-24 14:45:07,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 422 transitions.
[2020-09-24 14:45:07,898 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 422 transitions. Word has length 235
[2020-09-24 14:45:07,899 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 14:45:07,899 INFO L479 AbstractCegarLoop]: Abstraction has 375 states and 422 transitions.
[2020-09-24 14:45:07,900 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-24 14:45:07,900 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 422 transitions.
[2020-09-24 14:45:07,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237
[2020-09-24 14:45:07,907 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 14:45:07,907 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 14:45:07,908 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 14:45:07,908 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 14:45:07,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 14:45:07,909 INFO L82 PathProgramCache]: Analyzing trace with hash 820894340, now seen corresponding path program 1 times
[2020-09-24 14:45:07,909 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 14:45:07,909 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [434678107]
[2020-09-24 14:45:07,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 14:45:07,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:08,351 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 208
[2020-09-24 14:45:08,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 14:45:08,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:08,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91
[2020-09-24 14:45:08,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:08,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95
[2020-09-24 14:45:08,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:08,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2020-09-24 14:45:08,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:08,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13
[2020-09-24 14:45:08,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:08,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25
[2020-09-24 14:45:08,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:08,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2020-09-24 14:45:08,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:08,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49
[2020-09-24 14:45:08,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:08,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61
[2020-09-24 14:45:08,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:08,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171
[2020-09-24 14:45:08,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:08,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181
[2020-09-24 14:45:08,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:08,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204
[2020-09-24 14:45:08,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:08,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214
[2020-09-24 14:45:08,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:08,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224
[2020-09-24 14:45:08,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:08,580 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked.
[2020-09-24 14:45:08,581 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [434678107]
[2020-09-24 14:45:08,581 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 14:45:08,581 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-09-24 14:45:08,582 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466541447]
[2020-09-24 14:45:08,584 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-24 14:45:08,584 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 14:45:08,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-24 14:45:08,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-24 14:45:08,585 INFO L87 Difference]: Start difference. First operand 375 states and 422 transitions. Second operand 6 states.
[2020-09-24 14:45:09,776 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 211
[2020-09-24 14:45:11,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 14:45:11,915 INFO L93 Difference]: Finished difference Result 597 states and 694 transitions.
[2020-09-24 14:45:11,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2020-09-24 14:45:11,916 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 236
[2020-09-24 14:45:11,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 14:45:11,923 INFO L225 Difference]: With dead ends: 597
[2020-09-24 14:45:11,924 INFO L226 Difference]: Without dead ends: 416
[2020-09-24 14:45:11,928 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72
[2020-09-24 14:45:11,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states.
[2020-09-24 14:45:11,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 365.
[2020-09-24 14:45:11,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states.
[2020-09-24 14:45:11,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 409 transitions.
[2020-09-24 14:45:11,989 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 409 transitions. Word has length 236
[2020-09-24 14:45:11,990 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 14:45:11,990 INFO L479 AbstractCegarLoop]: Abstraction has 365 states and 409 transitions.
[2020-09-24 14:45:11,990 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-09-24 14:45:11,990 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 409 transitions.
[2020-09-24 14:45:11,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247
[2020-09-24 14:45:11,994 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 14:45:11,995 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 14:45:11,995 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 14:45:11,995 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 14:45:11,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 14:45:11,996 INFO L82 PathProgramCache]: Analyzing trace with hash 1884524892, now seen corresponding path program 1 times
[2020-09-24 14:45:11,996 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 14:45:11,996 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [498910965]
[2020-09-24 14:45:11,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 14:45:12,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:12,490 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 208
[2020-09-24 14:45:12,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 14:45:12,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:12,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91
[2020-09-24 14:45:12,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:12,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95
[2020-09-24 14:45:12,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:12,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2020-09-24 14:45:12,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:12,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13
[2020-09-24 14:45:12,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:12,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25
[2020-09-24 14:45:12,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:12,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2020-09-24 14:45:12,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:12,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49
[2020-09-24 14:45:12,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:12,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61
[2020-09-24 14:45:12,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:12,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171
[2020-09-24 14:45:12,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:12,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181
[2020-09-24 14:45:12,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:12,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214
[2020-09-24 14:45:12,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:12,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224
[2020-09-24 14:45:12,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:12,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234
[2020-09-24 14:45:12,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:12,935 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked.
[2020-09-24 14:45:12,935 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [498910965]
[2020-09-24 14:45:12,936 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 14:45:12,936 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13
[2020-09-24 14:45:12,937 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977286233]
[2020-09-24 14:45:12,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states
[2020-09-24 14:45:12,939 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 14:45:12,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2020-09-24 14:45:12,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156
[2020-09-24 14:45:12,941 INFO L87 Difference]: Start difference. First operand 365 states and 409 transitions. Second operand 13 states.
[2020-09-24 14:45:13,642 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 210
[2020-09-24 14:45:14,499 WARN L193 SmtUtils]: Spent 678.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 211
[2020-09-24 14:45:15,575 WARN L193 SmtUtils]: Spent 658.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 213
[2020-09-24 14:45:16,278 WARN L193 SmtUtils]: Spent 669.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 215
[2020-09-24 14:45:17,715 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 210
[2020-09-24 14:45:18,163 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 213
[2020-09-24 14:45:23,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 14:45:23,173 INFO L93 Difference]: Finished difference Result 964 states and 1139 transitions.
[2020-09-24 14:45:23,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states.
[2020-09-24 14:45:23,174 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 246
[2020-09-24 14:45:23,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 14:45:23,181 INFO L225 Difference]: With dead ends: 964
[2020-09-24 14:45:23,181 INFO L226 Difference]: Without dead ends: 751
[2020-09-24 14:45:23,183 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=196, Invalid=616, Unknown=0, NotChecked=0, Total=812
[2020-09-24 14:45:23,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states.
[2020-09-24 14:45:23,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 651.
[2020-09-24 14:45:23,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 651 states.
[2020-09-24 14:45:23,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 751 transitions.
[2020-09-24 14:45:23,299 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 751 transitions. Word has length 246
[2020-09-24 14:45:23,300 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 14:45:23,300 INFO L479 AbstractCegarLoop]: Abstraction has 651 states and 751 transitions.
[2020-09-24 14:45:23,300 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states.
[2020-09-24 14:45:23,301 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 751 transitions.
[2020-09-24 14:45:23,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256
[2020-09-24 14:45:23,306 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 14:45:23,306 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 14:45:23,307 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 14:45:23,307 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 14:45:23,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 14:45:23,307 INFO L82 PathProgramCache]: Analyzing trace with hash 544054283, now seen corresponding path program 1 times
[2020-09-24 14:45:23,308 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 14:45:23,308 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1398184034]
[2020-09-24 14:45:23,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 14:45:23,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:23,776 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 208
[2020-09-24 14:45:23,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 14:45:23,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:23,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91
[2020-09-24 14:45:23,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:23,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95
[2020-09-24 14:45:23,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:23,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2020-09-24 14:45:23,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:23,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13
[2020-09-24 14:45:23,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:23,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25
[2020-09-24 14:45:23,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:23,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2020-09-24 14:45:23,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:23,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49
[2020-09-24 14:45:23,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:23,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61
[2020-09-24 14:45:23,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:23,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171
[2020-09-24 14:45:23,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:23,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181
[2020-09-24 14:45:23,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:23,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211
[2020-09-24 14:45:23,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:23,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223
[2020-09-24 14:45:23,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:23,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233
[2020-09-24 14:45:23,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:23,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243
[2020-09-24 14:45:23,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:45:24,107 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked.
[2020-09-24 14:45:24,108 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1398184034]
[2020-09-24 14:45:24,108 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 14:45:24,108 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11
[2020-09-24 14:45:24,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502111321]
[2020-09-24 14:45:24,109 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states
[2020-09-24 14:45:24,109 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 14:45:24,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2020-09-24 14:45:24,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110
[2020-09-24 14:45:24,110 INFO L87 Difference]: Start difference. First operand 651 states and 751 transitions. Second operand 11 states.
[2020-09-24 14:45:24,769 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 210
[2020-09-24 14:45:28,061 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 212
[2020-09-24 14:45:28,484 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 214
[2020-09-24 14:45:28,983 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 212
[2020-09-24 14:45:29,431 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 210
[2020-09-24 14:45:29,843 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 214
[2020-09-24 14:45:30,231 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 212
[2020-09-24 14:45:30,619 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 212
[2020-09-24 14:45:32,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 14:45:32,954 INFO L93 Difference]: Finished difference Result 1785 states and 2204 transitions.
[2020-09-24 14:45:32,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states.
[2020-09-24 14:45:32,955 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 255
[2020-09-24 14:45:32,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 14:45:32,963 INFO L225 Difference]: With dead ends: 1785
[2020-09-24 14:45:32,963 INFO L226 Difference]: Without dead ends: 1286
[2020-09-24 14:45:32,968 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=206, Invalid=496, Unknown=0, NotChecked=0, Total=702
[2020-09-24 14:45:32,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1286 states.
[2020-09-24 14:45:33,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1286 to 1153.
[2020-09-24 14:45:33,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1153 states.
[2020-09-24 14:45:33,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1153 states to 1153 states and 1362 transitions.
[2020-09-24 14:45:33,169 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 1362 transitions. Word has length 255
[2020-09-24 14:45:33,170 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 14:45:33,170 INFO L479 AbstractCegarLoop]: Abstraction has 1153 states and 1362 transitions.
[2020-09-24 14:45:33,170 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states.
[2020-09-24 14:45:33,170 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 1362 transitions.
[2020-09-24 14:45:33,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261
[2020-09-24 14:45:33,178 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 14:45:33,178 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 14:45:33,178 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-09-24 14:45:33,179 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 14:45:33,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 14:45:33,179 INFO L82 PathProgramCache]: Analyzing trace with hash -522870887, now seen corresponding path program 1 times
[2020-09-24 14:45:33,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 14:45:33,180 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1689802401]
[2020-09-24 14:45:33,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 14:45:33,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-24 14:45:33,279 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-24 14:45:33,279 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-09-24 14:45:33,285 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-09-24 14:45:33,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 02:45:33 BoogieIcfgContainer
[2020-09-24 14:45:33,318 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 14:45:33,320 INFO L168 Benchmark]: Toolchain (without parser) took 31921.24 ms. Allocated memory was 141.0 MB in the beginning and 680.5 MB in the end (delta: 539.5 MB). Free memory was 102.3 MB in the beginning and 390.4 MB in the end (delta: -288.1 MB). Peak memory consumption was 251.4 MB. Max. memory is 7.1 GB.
[2020-09-24 14:45:33,321 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-24 14:45:33,322 INFO L168 Benchmark]: CACSL2BoogieTranslator took 748.17 ms. Allocated memory was 141.0 MB in the beginning and 205.5 MB in the end (delta: 64.5 MB). Free memory was 101.6 MB in the beginning and 169.9 MB in the end (delta: -68.4 MB). Peak memory consumption was 28.4 MB. Max. memory is 7.1 GB.
[2020-09-24 14:45:33,323 INFO L168 Benchmark]: Boogie Preprocessor took 118.15 ms. Allocated memory is still 205.5 MB. Free memory was 169.9 MB in the beginning and 166.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB.
[2020-09-24 14:45:33,324 INFO L168 Benchmark]: RCFGBuilder took 1492.03 ms. Allocated memory was 205.5 MB in the beginning and 237.5 MB in the end (delta: 32.0 MB). Free memory was 166.0 MB in the beginning and 158.9 MB in the end (delta: 7.1 MB). Peak memory consumption was 77.9 MB. Max. memory is 7.1 GB.
[2020-09-24 14:45:33,325 INFO L168 Benchmark]: TraceAbstraction took 29554.58 ms. Allocated memory was 237.5 MB in the beginning and 680.5 MB in the end (delta: 443.0 MB). Free memory was 158.9 MB in the beginning and 390.4 MB in the end (delta: -231.5 MB). Peak memory consumption was 211.5 MB. Max. memory is 7.1 GB.
[2020-09-24 14:45:33,329 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.20 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 748.17 ms. Allocated memory was 141.0 MB in the beginning and 205.5 MB in the end (delta: 64.5 MB). Free memory was 101.6 MB in the beginning and 169.9 MB in the end (delta: -68.4 MB). Peak memory consumption was 28.4 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 118.15 ms. Allocated memory is still 205.5 MB. Free memory was 169.9 MB in the beginning and 166.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 1492.03 ms. Allocated memory was 205.5 MB in the beginning and 237.5 MB in the end (delta: 32.0 MB). Free memory was 166.0 MB in the beginning and 158.9 MB in the end (delta: 7.1 MB). Peak memory consumption was 77.9 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 29554.58 ms. Allocated memory was 237.5 MB in the beginning and 680.5 MB in the end (delta: 443.0 MB). Free memory was 158.9 MB in the beginning and 390.4 MB in the end (delta: -231.5 MB). Peak memory consumption was 211.5 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- CounterExampleResult [Line: 1022]: a call of __VERIFIER_error() is reachable
a call of __VERIFIER_error() is reachable
We found a FailurePath:
[L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0;
[L406] int cleanupTimeShifts = 4;
[L510] int __SELECTED_FEATURE_base ;
[L511] int __SELECTED_FEATURE_highWaterSensor ;
[L512] int __SELECTED_FEATURE_lowWaterSensor ;
[L513] int __SELECTED_FEATURE_methaneQuery ;
[L514] int __SELECTED_FEATURE_methaneAlarm ;
[L515] int __SELECTED_FEATURE_stopCommand ;
[L516] int __SELECTED_FEATURE_startCommand ;
[L517] int __GUIDSL_ROOT_PRODUCTION ;
[L605] int pumpRunning = 0;
[L606] int systemActive = 1;
[L1027] int waterLevel = 1;
[L1028] int methaneLevelCritical = 0;
[L487] int retValue_acc ;
[L488] int tmp ;
[L492] CALL select_helpers()
[L968] __GUIDSL_ROOT_PRODUCTION = 1
[L492] RET select_helpers()
[L493] CALL select_features()
[L953] __SELECTED_FEATURE_base = 1
[L954] CALL, EXPR select_one()
[L939] int retValue_acc ;
[L940] int choice = __VERIFIER_nondet_int();
[L943] retValue_acc = choice
[L944] return (retValue_acc);
[L954] RET, EXPR select_one()
[L954] __SELECTED_FEATURE_highWaterSensor = select_one()
[L955] CALL, EXPR select_one()
[L939] int retValue_acc ;
[L940] int choice = __VERIFIER_nondet_int();
[L943] retValue_acc = choice
[L944] return (retValue_acc);
[L955] RET, EXPR select_one()
[L955] __SELECTED_FEATURE_lowWaterSensor = select_one()
[L956] CALL, EXPR select_one()
[L939] int retValue_acc ;
[L940] int choice = __VERIFIER_nondet_int();
[L943] retValue_acc = choice
[L944] return (retValue_acc);
[L956] RET, EXPR select_one()
[L956] __SELECTED_FEATURE_methaneQuery = select_one()
[L957] CALL, EXPR select_one()
[L939] int retValue_acc ;
[L940] int choice = __VERIFIER_nondet_int();
[L943] retValue_acc = choice
[L944] return (retValue_acc);
[L957] RET, EXPR select_one()
[L957] __SELECTED_FEATURE_methaneAlarm = select_one()
[L958] CALL, EXPR select_one()
[L939] int retValue_acc ;
[L940] int choice = __VERIFIER_nondet_int();
[L943] retValue_acc = choice
[L944] return (retValue_acc);
[L958] RET, EXPR select_one()
[L958] __SELECTED_FEATURE_stopCommand = select_one()
[L959] CALL, EXPR select_one()
[L939] int retValue_acc ;
[L940] int choice = __VERIFIER_nondet_int();
[L943] retValue_acc = choice
[L944] return (retValue_acc);
[L959] RET, EXPR select_one()
[L959] __SELECTED_FEATURE_startCommand = select_one()
[L493] RET select_features()
[L494] CALL, EXPR valid_product()
[L973] int retValue_acc ;
[L976] retValue_acc = __SELECTED_FEATURE_base
[L977] return (retValue_acc);
[L494] RET, EXPR valid_product()
[L494] tmp = valid_product()
[L496] COND TRUE \read(tmp)
[L498] FCALL setup()
[L499] CALL runTest()
[L478] CALL test()
[L521] int splverifierCounter ;
[L522] int tmp ;
[L523] int tmp___0 ;
[L524] int tmp___1 ;
[L525] int tmp___2 ;
[L528] splverifierCounter = 0
[L530] COND TRUE 1
[L532] COND TRUE splverifierCounter < 4
[L538] tmp = __VERIFIER_nondet_int()
[L540] COND TRUE \read(tmp)
[L542] CALL waterRise()
[L1045] COND TRUE waterLevel < 2
[L1046] waterLevel = waterLevel + 1
[L542] RET waterRise()
[L548] tmp___0 = __VERIFIER_nondet_int()
[L550] COND FALSE !(\read(tmp___0))
[L558] tmp___2 = __VERIFIER_nondet_int()
[L560] COND FALSE !(\read(tmp___2))
[L570] tmp___1 = __VERIFIER_nondet_int()
[L572] COND TRUE \read(tmp___1)
[L573] COND TRUE \read(__SELECTED_FEATURE_stopCommand)
[L575] CALL stopSystem()
[L917] COND FALSE !(\read(pumpRunning))
[L924] systemActive = 0
[L575] RET stopSystem()
[L585] CALL timeShift()
[L613] COND FALSE !(\read(pumpRunning))
[L620] COND FALSE !(\read(systemActive))
[L628] CALL __utac_acc__Specification3_spec__1()
[L985] int tmp ;
[L986] int tmp___0 ;
[L987] int tmp___1 ;
[L991] CALL, EXPR isMethaneLevelCritical()
[L1066] int retValue_acc ;
[L1069] retValue_acc = methaneLevelCritical
[L1070] return (retValue_acc);
[L991] RET, EXPR isMethaneLevelCritical()
[L991] tmp = isMethaneLevelCritical()
[L993] COND FALSE !(\read(tmp))
[L997] CALL, EXPR getWaterLevel()
[L1098] int retValue_acc ;
[L1101] retValue_acc = waterLevel
[L1102] return (retValue_acc);
[L997] RET, EXPR getWaterLevel()
[L997] tmp___0 = getWaterLevel()
[L999] COND TRUE tmp___0 == 2
[L1001] CALL, EXPR isPumpRunning()
[L831] int retValue_acc ;
[L834] retValue_acc = pumpRunning
[L835] return (retValue_acc);
[L1001] RET, EXPR isPumpRunning()
[L1001] tmp___1 = isPumpRunning()
[L1003] COND FALSE !(\read(tmp___1))
[L1007] CALL __automaton_fail()
[L1022] __VERIFIER_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 48 procedures, 730 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 29.4s, OverallIterations: 5, TraceHistogramMax: 6, AutomataDifference: 25.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1362 SDtfs, 4562 SDslu, 1418 SDs, 0 SdLazy, 6119 SolverSat, 2044 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 189 GetRequests, 125 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 8.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1153occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 342 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 1232 NumberOfCodeBlocks, 1232 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 968 ConstructedInterpolants, 0 QuantifiedInterpolants, 532037 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 480/480 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!
Received shutdown request...