/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 --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_product11.cil.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-5644d1e-m
[2020-08-18 15:18:07,658 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-08-18 15:18:07,661 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-08-18 15:18:07,687 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-08-18 15:18:07,687 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-08-18 15:18:07,689 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-08-18 15:18:07,690 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-08-18 15:18:07,692 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-08-18 15:18:07,693 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-08-18 15:18:07,694 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-08-18 15:18:07,695 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-08-18 15:18:07,696 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-08-18 15:18:07,696 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-08-18 15:18:07,697 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-08-18 15:18:07,698 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-08-18 15:18:07,699 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-08-18 15:18:07,700 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-08-18 15:18:07,701 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-08-18 15:18:07,703 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-08-18 15:18:07,705 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-08-18 15:18:07,706 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-08-18 15:18:07,707 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-08-18 15:18:07,708 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-08-18 15:18:07,709 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-08-18 15:18:07,711 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-08-18 15:18:07,712 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-08-18 15:18:07,712 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-08-18 15:18:07,713 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-08-18 15:18:07,713 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-08-18 15:18:07,714 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-08-18 15:18:07,714 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-08-18 15:18:07,715 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-08-18 15:18:07,716 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-08-18 15:18:07,717 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-08-18 15:18:07,718 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-08-18 15:18:07,718 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-08-18 15:18:07,718 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-08-18 15:18:07,719 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-08-18 15:18:07,719 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-08-18 15:18:07,720 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-08-18 15:18:07,720 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-08-18 15:18:07,721 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
[2020-08-18 15:18:07,744 INFO L113 SettingsManager]: Loading preferences was successful
[2020-08-18 15:18:07,744 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-08-18 15:18:07,745 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-08-18 15:18:07,745 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-08-18 15:18:07,746 INFO L138 SettingsManager]: * Use SBE=true
[2020-08-18 15:18:07,750 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-08-18 15:18:07,750 INFO L138 SettingsManager]: * sizeof long=4
[2020-08-18 15:18:07,750 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-08-18 15:18:07,751 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-08-18 15:18:07,751 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-08-18 15:18:07,751 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-08-18 15:18:07,751 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-08-18 15:18:07,751 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-08-18 15:18:07,752 INFO L138 SettingsManager]: * sizeof long double=12
[2020-08-18 15:18:07,752 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-08-18 15:18:07,752 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-08-18 15:18:07,752 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-08-18 15:18:07,752 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-08-18 15:18:07,753 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-08-18 15:18:07,755 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-08-18 15:18:07,755 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-08-18 15:18:07,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-08-18 15:18:07,756 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-08-18 15:18:07,756 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-08-18 15:18:07,756 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-08-18 15:18:07,756 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-08-18 15:18:07,756 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-08-18 15:18:07,757 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-08-18 15:18:07,760 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-08-18 15:18:07,760 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.traceabstraction: Use minimal unsat core enumeration -> false
[2020-08-18 15:18:08,071 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-08-18 15:18:08,089 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-08-18 15:18:08,093 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-08-18 15:18:08,094 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-08-18 15:18:08,095 INFO L275 PluginConnector]: CDTParser initialized
[2020-08-18 15:18:08,096 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product11.cil.c
[2020-08-18 15:18:08,171 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/998876064/acaf40aab43840caadd8b1dd85bf584f/FLAGf2944e1cf
[2020-08-18 15:18:08,755 INFO L306 CDTParser]: Found 1 translation units.
[2020-08-18 15:18:08,756 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product11.cil.c
[2020-08-18 15:18:08,772 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/998876064/acaf40aab43840caadd8b1dd85bf584f/FLAGf2944e1cf
[2020-08-18 15:18:09,023 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/998876064/acaf40aab43840caadd8b1dd85bf584f
[2020-08-18 15:18:09,033 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-08-18 15:18:09,035 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-08-18 15:18:09,036 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-08-18 15:18:09,036 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-08-18 15:18:09,040 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-08-18 15:18:09,040 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 03:18:09" (1/1) ...
[2020-08-18 15:18:09,043 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2830e110 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:18:09, skipping insertion in model container
[2020-08-18 15:18:09,044 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 03:18:09" (1/1) ...
[2020-08-18 15:18:09,051 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-08-18 15:18:09,106 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-08-18 15:18:09,556 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-08-18 15:18:09,570 INFO L203 MainTranslator]: Completed pre-run
[2020-08-18 15:18:09,651 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-08-18 15:18:09,686 INFO L208 MainTranslator]: Completed translation
[2020-08-18 15:18:09,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:18:09 WrapperNode
[2020-08-18 15:18:09,686 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-08-18 15:18:09,687 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-08-18 15:18:09,687 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-08-18 15:18:09,687 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-08-18 15:18:09,702 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:18:09" (1/1) ...
[2020-08-18 15:18:09,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:18:09" (1/1) ...
[2020-08-18 15:18:09,724 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:18:09" (1/1) ...
[2020-08-18 15:18:09,725 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:18:09" (1/1) ...
[2020-08-18 15:18:09,759 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:18:09" (1/1) ...
[2020-08-18 15:18:09,775 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:18:09" (1/1) ...
[2020-08-18 15:18:09,781 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:18:09" (1/1) ...
[2020-08-18 15:18:09,789 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-08-18 15:18:09,790 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-08-18 15:18:09,790 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-08-18 15:18:09,790 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-08-18 15:18:09,791 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:18:09" (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
[2020-08-18 15:18:09,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-08-18 15:18:09,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-08-18 15:18:09,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-08-18 15:18:09,856 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-08-18 15:18:09,856 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup
[2020-08-18 15:18:09,856 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2
[2020-08-18 15:18:09,857 INFO L138 BoogieDeclarations]: Found implementation of procedure setup
[2020-08-18 15:18:09,858 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest
[2020-08-18 15:18:09,858 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-08-18 15:18:09,858 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one
[2020-08-18 15:18:09,858 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features
[2020-08-18 15:18:09,859 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-08-18 15:18:09,859 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product
[2020-08-18 15:18:09,859 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-08-18 15:18:09,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-08-18 15:18:09,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-08-18 15:18:09,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-08-18 15:18:09,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-08-18 15:18:09,862 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-08-18 15:18:09,862 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift
[2020-08-18 15:18:09,862 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-08-18 15:18:09,862 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base
[2020-08-18 15:18:09,863 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump
[2020-08-18 15:18:09,863 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-08-18 15:18:09,863 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-08-18 15:18:09,863 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-08-18 15:18:09,863 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump
[2020-08-18 15:18:09,864 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-08-18 15:18:09,864 INFO L138 BoogieDeclarations]: Found implementation of procedure test
[2020-08-18 15:18:09,864 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-08-18 15:18:09,864 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-08-18 15:18:09,864 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise
[2020-08-18 15:18:09,864 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-08-18 15:18:09,865 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-08-18 15:18:09,865 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-08-18 15:18:09,865 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-08-18 15:18:09,865 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-08-18 15:18:09,865 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-08-18 15:18:09,866 INFO L130 BoogieDeclarations]: Found specification of procedure printf
[2020-08-18 15:18:09,866 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-08-18 15:18:09,866 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-08-18 15:18:09,866 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-08-18 15:18:09,866 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-08-18 15:18:09,866 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-08-18 15:18:09,866 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift
[2020-08-18 15:18:09,867 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup
[2020-08-18 15:18:09,867 INFO L130 BoogieDeclarations]: Found specification of procedure printPump
[2020-08-18 15:18:09,867 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise
[2020-08-18 15:18:09,867 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-08-18 15:18:09,867 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2
[2020-08-18 15:18:09,867 INFO L130 BoogieDeclarations]: Found specification of procedure setup
[2020-08-18 15:18:09,868 INFO L130 BoogieDeclarations]: Found specification of procedure test
[2020-08-18 15:18:09,868 INFO L130 BoogieDeclarations]: Found specification of procedure runTest
[2020-08-18 15:18:09,868 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers
[2020-08-18 15:18:09,868 INFO L130 BoogieDeclarations]: Found specification of procedure select_features
[2020-08-18 15:18:09,868 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product
[2020-08-18 15:18:09,868 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-08-18 15:18:09,868 INFO L130 BoogieDeclarations]: Found specification of procedure select_one
[2020-08-18 15:18:09,869 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-08-18 15:18:09,869 INFO L130 BoogieDeclarations]: Found specification of procedure malloc
[2020-08-18 15:18:09,869 INFO L130 BoogieDeclarations]: Found specification of procedure free
[2020-08-18 15:18:09,869 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-08-18 15:18:09,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-08-18 15:18:09,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-08-18 15:18:09,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-08-18 15:18:09,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-08-18 15:18:09,870 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-08-18 15:18:09,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-08-18 15:18:09,870 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-08-18 15:18:09,870 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-08-18 15:18:09,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-08-18 15:18:09,871 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-08-18 15:18:09,871 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-08-18 15:18:09,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-08-18 15:18:09,871 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-08-18 15:18:09,871 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-08-18 15:18:09,871 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-08-18 15:18:09,872 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump
[2020-08-18 15:18:09,872 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-08-18 15:18:09,872 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem
[2020-08-18 15:18:09,872 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-08-18 15:18:09,872 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base
[2020-08-18 15:18:09,872 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-08-18 15:18:09,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-08-18 15:18:09,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2020-08-18 15:18:09,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-08-18 15:18:10,925 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-08-18 15:18:10,925 INFO L295 CfgBuilder]: Removed 5 assume(true) statements.
[2020-08-18 15:18:10,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 03:18:10 BoogieIcfgContainer
[2020-08-18 15:18:10,931 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-08-18 15:18:10,932 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-08-18 15:18:10,932 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-08-18 15:18:10,936 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-08-18 15:18:10,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 03:18:09" (1/3) ...
[2020-08-18 15:18:10,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@674c6e03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 03:18:10, skipping insertion in model container
[2020-08-18 15:18:10,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:18:09" (2/3) ...
[2020-08-18 15:18:10,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@674c6e03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 03:18:10, skipping insertion in model container
[2020-08-18 15:18:10,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 03:18:10" (3/3) ...
[2020-08-18 15:18:10,939 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product11.cil.c
[2020-08-18 15:18:10,950 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-08-18 15:18:10,958 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-08-18 15:18:10,972 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-08-18 15:18:10,997 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-08-18 15:18:10,998 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-08-18 15:18:10,998 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-08-18 15:18:10,998 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-08-18 15:18:10,998 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-08-18 15:18:10,998 INFO L380 AbstractCegarLoop]: Difference is false
[2020-08-18 15:18:10,999 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-08-18 15:18:10,999 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-08-18 15:18:11,019 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states.
[2020-08-18 15:18:11,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53
[2020-08-18 15:18:11,029 INFO L414 BasicCegarLoop]: Found error trace
[2020-08-18 15:18:11,030 INFO L422 BasicCegarLoop]: 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]
[2020-08-18 15:18:11,031 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-18 15:18:11,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-08-18 15:18:11,036 INFO L82 PathProgramCache]: Analyzing trace with hash 789577792, now seen corresponding path program 1 times
[2020-08-18 15:18:11,042 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-18 15:18:11,043 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [656516526]
[2020-08-18 15:18:11,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-18 15:18:11,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 15:18:11,698 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-08-18 15:18:11,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-18 15:18:11,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 15:18:11,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-08-18 15:18:11,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 15:18:11,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-08-18 15:18:11,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 15:18:11,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-08-18 15:18:11,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 15:18:11,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-08-18 15:18:11,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 15:18:11,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2020-08-18 15:18:11,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 15:18:11,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2020-08-18 15:18:11,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 15:18:11,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44
[2020-08-18 15:18:11,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 15:18:11,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-08-18 15:18:11,804 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [656516526]
[2020-08-18 15:18:11,807 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-18 15:18:11,807 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-08-18 15:18:11,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969288255]
[2020-08-18 15:18:11,814 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-08-18 15:18:11,815 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-08-18 15:18:11,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-08-18 15:18:11,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-08-18 15:18:11,834 INFO L87 Difference]: Start difference. First operand 150 states. Second operand 3 states.
[2020-08-18 15:18:12,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-18 15:18:12,812 INFO L93 Difference]: Finished difference Result 231 states and 307 transitions.
[2020-08-18 15:18:12,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-08-18 15:18:12,814 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52
[2020-08-18 15:18:12,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-18 15:18:12,828 INFO L225 Difference]: With dead ends: 231
[2020-08-18 15:18:12,829 INFO L226 Difference]: Without dead ends: 126
[2020-08-18 15:18:12,833 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-08-18 15:18:12,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states.
[2020-08-18 15:18:12,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 96.
[2020-08-18 15:18:12,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states.
[2020-08-18 15:18:12,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 111 transitions.
[2020-08-18 15:18:12,912 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 111 transitions. Word has length 52
[2020-08-18 15:18:12,912 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-08-18 15:18:12,912 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 111 transitions.
[2020-08-18 15:18:12,912 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-08-18 15:18:12,913 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 111 transitions.
[2020-08-18 15:18:12,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54
[2020-08-18 15:18:12,916 INFO L414 BasicCegarLoop]: Found error trace
[2020-08-18 15:18:12,916 INFO L422 BasicCegarLoop]: 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]
[2020-08-18 15:18:12,917 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-08-18 15:18:12,918 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-18 15:18:12,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-08-18 15:18:12,918 INFO L82 PathProgramCache]: Analyzing trace with hash 86425602, now seen corresponding path program 1 times
[2020-08-18 15:18:12,919 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-18 15:18:12,919 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [214997029]
[2020-08-18 15:18:12,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-18 15:18:12,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 15:18:13,266 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-08-18 15:18:13,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-18 15:18:13,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 15:18:13,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-08-18 15:18:13,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 15:18:13,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-08-18 15:18:13,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 15:18:13,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-08-18 15:18:13,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 15:18:13,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-08-18 15:18:13,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 15:18:13,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2020-08-18 15:18:13,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 15:18:13,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39
[2020-08-18 15:18:13,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 15:18:13,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45
[2020-08-18 15:18:13,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 15:18:13,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-08-18 15:18:13,336 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [214997029]
[2020-08-18 15:18:13,336 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-18 15:18:13,336 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-08-18 15:18:13,337 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196507872]
[2020-08-18 15:18:13,341 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-08-18 15:18:13,341 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-08-18 15:18:13,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-08-18 15:18:13,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-08-18 15:18:13,343 INFO L87 Difference]: Start difference. First operand 96 states and 111 transitions. Second operand 4 states.
[2020-08-18 15:18:13,746 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-08-18 15:18:14,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-18 15:18:14,300 INFO L93 Difference]: Finished difference Result 155 states and 188 transitions.
[2020-08-18 15:18:14,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-08-18 15:18:14,306 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53
[2020-08-18 15:18:14,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-18 15:18:14,308 INFO L225 Difference]: With dead ends: 155
[2020-08-18 15:18:14,309 INFO L226 Difference]: Without dead ends: 110
[2020-08-18 15:18:14,310 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-08-18 15:18:14,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states.
[2020-08-18 15:18:14,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 87.
[2020-08-18 15:18:14,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states.
[2020-08-18 15:18:14,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 99 transitions.
[2020-08-18 15:18:14,351 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 99 transitions. Word has length 53
[2020-08-18 15:18:14,351 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-08-18 15:18:14,351 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 99 transitions.
[2020-08-18 15:18:14,351 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-08-18 15:18:14,352 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 99 transitions.
[2020-08-18 15:18:14,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58
[2020-08-18 15:18:14,353 INFO L414 BasicCegarLoop]: Found error trace
[2020-08-18 15:18:14,354 INFO L422 BasicCegarLoop]: 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]
[2020-08-18 15:18:14,354 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-08-18 15:18:14,354 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-18 15:18:14,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-08-18 15:18:14,355 INFO L82 PathProgramCache]: Analyzing trace with hash -1920799428, now seen corresponding path program 1 times
[2020-08-18 15:18:14,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-18 15:18:14,355 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1034782173]
[2020-08-18 15:18:14,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-18 15:18:14,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 15:18:14,666 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-08-18 15:18:14,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-18 15:18:14,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 15:18:14,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-08-18 15:18:14,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 15:18:14,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-08-18 15:18:14,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 15:18:14,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-08-18 15:18:14,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 15:18:14,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-08-18 15:18:14,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 15:18:14,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2020-08-18 15:18:14,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 15:18:14,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43
[2020-08-18 15:18:14,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 15:18:14,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49
[2020-08-18 15:18:14,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 15:18:14,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-08-18 15:18:14,773 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1034782173]
[2020-08-18 15:18:14,773 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-18 15:18:14,773 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-08-18 15:18:14,774 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990298220]
[2020-08-18 15:18:14,774 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-08-18 15:18:14,774 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-08-18 15:18:14,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-08-18 15:18:14,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2020-08-18 15:18:14,775 INFO L87 Difference]: Start difference. First operand 87 states and 99 transitions. Second operand 8 states.
[2020-08-18 15:18:15,124 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-08-18 15:18:15,432 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-08-18 15:18:15,665 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-08-18 15:18:15,938 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-08-18 15:18:16,678 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-08-18 15:18:17,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-18 15:18:17,744 INFO L93 Difference]: Finished difference Result 311 states and 384 transitions.
[2020-08-18 15:18:17,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2020-08-18 15:18:17,746 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57
[2020-08-18 15:18:17,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-18 15:18:17,751 INFO L225 Difference]: With dead ends: 311
[2020-08-18 15:18:17,751 INFO L226 Difference]: Without dead ends: 248
[2020-08-18 15:18:17,752 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156
[2020-08-18 15:18:17,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states.
[2020-08-18 15:18:17,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 186.
[2020-08-18 15:18:17,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states.
[2020-08-18 15:18:17,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 221 transitions.
[2020-08-18 15:18:17,808 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 221 transitions. Word has length 57
[2020-08-18 15:18:17,809 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-08-18 15:18:17,809 INFO L479 AbstractCegarLoop]: Abstraction has 186 states and 221 transitions.
[2020-08-18 15:18:17,809 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-08-18 15:18:17,809 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 221 transitions.
[2020-08-18 15:18:17,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61
[2020-08-18 15:18:17,812 INFO L414 BasicCegarLoop]: Found error trace
[2020-08-18 15:18:17,812 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-08-18 15:18:17,812 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-08-18 15:18:17,814 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-18 15:18:17,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-08-18 15:18:17,814 INFO L82 PathProgramCache]: Analyzing trace with hash 1032165772, now seen corresponding path program 1 times
[2020-08-18 15:18:17,814 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-18 15:18:17,815 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [302206840]
[2020-08-18 15:18:17,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-18 15:18:17,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 15:18:18,138 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-08-18 15:18:18,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-18 15:18:18,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 15:18:18,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-08-18 15:18:18,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 15:18:18,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-08-18 15:18:18,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 15:18:18,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-08-18 15:18:18,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 15:18:18,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-08-18 15:18:18,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 15:18:18,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35
[2020-08-18 15:18:18,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 15:18:18,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40
[2020-08-18 15:18:18,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 15:18:18,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46
[2020-08-18 15:18:18,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 15:18:18,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52
[2020-08-18 15:18:18,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 15:18:18,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-08-18 15:18:18,223 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [302206840]
[2020-08-18 15:18:18,224 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-18 15:18:18,224 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-08-18 15:18:18,224 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870417415]
[2020-08-18 15:18:18,225 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-08-18 15:18:18,225 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-08-18 15:18:18,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-08-18 15:18:18,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2020-08-18 15:18:18,226 INFO L87 Difference]: Start difference. First operand 186 states and 221 transitions. Second operand 7 states.
[2020-08-18 15:18:18,534 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-08-18 15:18:19,513 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-08-18 15:18:19,773 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-08-18 15:18:20,004 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-08-18 15:18:20,246 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-08-18 15:18:20,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-18 15:18:20,512 INFO L93 Difference]: Finished difference Result 524 states and 668 transitions.
[2020-08-18 15:18:20,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2020-08-18 15:18:20,512 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 60
[2020-08-18 15:18:20,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-18 15:18:20,516 INFO L225 Difference]: With dead ends: 524
[2020-08-18 15:18:20,516 INFO L226 Difference]: Without dead ends: 362
[2020-08-18 15:18:20,518 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132
[2020-08-18 15:18:20,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states.
[2020-08-18 15:18:20,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 341.
[2020-08-18 15:18:20,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states.
[2020-08-18 15:18:20,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 417 transitions.
[2020-08-18 15:18:20,598 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 417 transitions. Word has length 60
[2020-08-18 15:18:20,598 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-08-18 15:18:20,598 INFO L479 AbstractCegarLoop]: Abstraction has 341 states and 417 transitions.
[2020-08-18 15:18:20,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-08-18 15:18:20,599 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 417 transitions.
[2020-08-18 15:18:20,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2020-08-18 15:18:20,602 INFO L414 BasicCegarLoop]: Found error trace
[2020-08-18 15:18:20,602 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-08-18 15:18:20,603 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-08-18 15:18:20,603 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-18 15:18:20,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-08-18 15:18:20,603 INFO L82 PathProgramCache]: Analyzing trace with hash 2086246822, now seen corresponding path program 1 times
[2020-08-18 15:18:20,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-18 15:18:20,604 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1290390484]
[2020-08-18 15:18:20,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-18 15:18:20,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 15:18:20,849 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-08-18 15:18:20,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-18 15:18:20,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 15:18:20,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-08-18 15:18:20,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 15:18:20,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-08-18 15:18:20,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 15:18:20,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-08-18 15:18:20,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 15:18:20,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-08-18 15:18:20,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 15:18:20,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34
[2020-08-18 15:18:20,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 15:18:20,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39
[2020-08-18 15:18:20,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 15:18:20,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44
[2020-08-18 15:18:20,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 15:18:20,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50
[2020-08-18 15:18:20,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 15:18:20,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56
[2020-08-18 15:18:20,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-18 15:18:20,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-08-18 15:18:20,934 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1290390484]
[2020-08-18 15:18:20,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-18 15:18:20,935 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-08-18 15:18:20,935 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77353086]
[2020-08-18 15:18:20,937 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-08-18 15:18:20,937 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-08-18 15:18:20,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-08-18 15:18:20,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-08-18 15:18:20,938 INFO L87 Difference]: Start difference. First operand 341 states and 417 transitions. Second operand 5 states.
[2020-08-18 15:18:21,224 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-08-18 15:18:21,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-18 15:18:21,745 INFO L93 Difference]: Finished difference Result 586 states and 736 transitions.
[2020-08-18 15:18:21,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-08-18 15:18:21,745 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64
[2020-08-18 15:18:21,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-18 15:18:21,748 INFO L225 Difference]: With dead ends: 586
[2020-08-18 15:18:21,748 INFO L226 Difference]: Without dead ends: 308
[2020-08-18 15:18:21,750 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-08-18 15:18:21,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states.
[2020-08-18 15:18:21,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 295.
[2020-08-18 15:18:21,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states.
[2020-08-18 15:18:21,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 346 transitions.
[2020-08-18 15:18:21,812 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 346 transitions. Word has length 64
[2020-08-18 15:18:21,812 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-08-18 15:18:21,813 INFO L479 AbstractCegarLoop]: Abstraction has 295 states and 346 transitions.
[2020-08-18 15:18:21,813 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-08-18 15:18:21,813 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 346 transitions.
[2020-08-18 15:18:21,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2020-08-18 15:18:21,815 INFO L414 BasicCegarLoop]: Found error trace
[2020-08-18 15:18:21,815 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-08-18 15:18:21,815 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-08-18 15:18:21,816 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-18 15:18:21,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-08-18 15:18:21,816 INFO L82 PathProgramCache]: Analyzing trace with hash -68424058, now seen corresponding path program 1 times
[2020-08-18 15:18:21,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-18 15:18:21,817 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [995966904]
[2020-08-18 15:18:21,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-18 15:18:21,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-08-18 15:18:21,870 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-08-18 15:18:21,870 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-08-18 15:18:21,874 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2020-08-18 15:18:21,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 03:18:21 BoogieIcfgContainer
[2020-08-18 15:18:21,896 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-08-18 15:18:21,898 INFO L168 Benchmark]: Toolchain (without parser) took 12863.56 ms. Allocated memory was 141.0 MB in the beginning and 452.5 MB in the end (delta: 311.4 MB). Free memory was 102.9 MB in the beginning and 277.0 MB in the end (delta: -174.1 MB). Peak memory consumption was 137.3 MB. Max. memory is 7.1 GB.
[2020-08-18 15:18:21,899 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-08-18 15:18:21,900 INFO L168 Benchmark]: CACSL2BoogieTranslator took 650.90 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 102.7 MB in the beginning and 171.6 MB in the end (delta: -68.9 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB.
[2020-08-18 15:18:21,901 INFO L168 Benchmark]: Boogie Preprocessor took 102.32 ms. Allocated memory is still 203.9 MB. Free memory was 171.6 MB in the beginning and 167.1 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB.
[2020-08-18 15:18:21,902 INFO L168 Benchmark]: RCFGBuilder took 1141.16 ms. Allocated memory was 203.9 MB in the beginning and 235.9 MB in the end (delta: 32.0 MB). Free memory was 167.1 MB in the beginning and 195.8 MB in the end (delta: -28.7 MB). Peak memory consumption was 80.3 MB. Max. memory is 7.1 GB.
[2020-08-18 15:18:21,903 INFO L168 Benchmark]: TraceAbstraction took 10964.46 ms. Allocated memory was 235.9 MB in the beginning and 452.5 MB in the end (delta: 216.5 MB). Free memory was 195.8 MB in the beginning and 277.0 MB in the end (delta: -81.1 MB). Peak memory consumption was 135.4 MB. Max. memory is 7.1 GB.
[2020-08-18 15:18:21,907 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.23 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 650.90 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 102.7 MB in the beginning and 171.6 MB in the end (delta: -68.9 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 102.32 ms. Allocated memory is still 203.9 MB. Free memory was 171.6 MB in the beginning and 167.1 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 1141.16 ms. Allocated memory was 203.9 MB in the beginning and 235.9 MB in the end (delta: 32.0 MB). Free memory was 167.1 MB in the beginning and 195.8 MB in the end (delta: -28.7 MB). Peak memory consumption was 80.3 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 10964.46 ms. Allocated memory was 235.9 MB in the beginning and 452.5 MB in the end (delta: 216.5 MB). Free memory was 195.8 MB in the beginning and 277.0 MB in the end (delta: -81.1 MB). Peak memory consumption was 135.4 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- CounterExampleResult [Line: 799]: a call of __VERIFIER_error() is reachable
a call of __VERIFIER_error() is reachable
We found a FailurePath:
[L78] int cleanupTimeShifts = 4;
[L386] static struct __ACC__ERR *head = (struct __ACC__ERR *)0;
[L588] int pumpRunning = 0;
[L589] int systemActive = 1;
[L804] int waterLevel = 1;
[L805] int methaneLevelCritical = 0;
[L159] int retValue_acc ;
[L160] int tmp ;
[L164] FCALL select_helpers()
[L165] FCALL select_features()
[L166] CALL, EXPR valid_product()
[L208] int retValue_acc ;
[L211] retValue_acc = 1
[L212] return (retValue_acc);
[L166] RET, EXPR valid_product()
[L166] tmp = valid_product()
[L168] COND TRUE \read(tmp)
[L170] FCALL setup()
[L171] CALL runTest()
[L150] CALL test()
[L729] int splverifierCounter ;
[L730] int tmp ;
[L731] int tmp___0 ;
[L732] int tmp___1 ;
[L733] int tmp___2 ;
[L736] splverifierCounter = 0
[L738] COND TRUE 1
[L740] COND TRUE splverifierCounter < 4
[L746] tmp = __VERIFIER_nondet_int()
[L748] COND TRUE \read(tmp)
[L750] CALL waterRise()
[L822] COND TRUE waterLevel < 2
[L823] waterLevel = waterLevel + 1
[L750] RET waterRise()
[L756] tmp___0 = __VERIFIER_nondet_int()
[L758] COND FALSE !(\read(tmp___0))
[L766] tmp___2 = __VERIFIER_nondet_int()
[L768] COND TRUE \read(tmp___2)
[L783] CALL timeShift()
[L595] COND FALSE !(\read(pumpRunning))
[L602] COND TRUE \read(systemActive)
[L604] FCALL processEnvironment()
[L610] CALL __utac_acc__Specification3_spec__1()
[L45] int tmp ;
[L46] int tmp___0 ;
[L47] int tmp___1 ;
[L51] CALL, EXPR isMethaneLevelCritical()
[L843] int retValue_acc ;
[L846] retValue_acc = methaneLevelCritical
[L847] return (retValue_acc);
[L51] RET, EXPR isMethaneLevelCritical()
[L51] tmp = isMethaneLevelCritical()
[L53] COND FALSE !(\read(tmp))
[L57] CALL, EXPR getWaterLevel()
[L875] int retValue_acc ;
[L878] retValue_acc = waterLevel
[L879] return (retValue_acc);
[L57] RET, EXPR getWaterLevel()
[L57] tmp___0 = getWaterLevel()
[L59] COND TRUE tmp___0 == 2
[L61] CALL, EXPR isPumpRunning()
[L668] int retValue_acc ;
[L671] retValue_acc = pumpRunning
[L672] return (retValue_acc);
[L61] RET, EXPR isPumpRunning()
[L61] tmp___1 = isPumpRunning()
[L63] COND FALSE !(\read(tmp___1))
[L67] CALL __automaton_fail()
[L799] __VERIFIER_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 36 procedures, 210 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 10.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 8.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 415 SDtfs, 629 SDslu, 307 SDs, 0 SdLazy, 1278 SolverSat, 361 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 129 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=341occurred 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: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 149 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 350 NumberOfCodeBlocks, 350 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 281 ConstructedInterpolants, 0 QuantifiedInterpolants, 78428 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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!
Received shutdown request...