/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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 SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product63.cil.c


--------------------------------------------------------------------------------


This is Ultimate 0.2.0-0f64333
[2020-10-29 11:41:16,957 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-10-29 11:41:16,960 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-10-29 11:41:17,013 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-10-29 11:41:17,014 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-10-29 11:41:17,020 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-10-29 11:41:17,022 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-10-29 11:41:17,027 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-10-29 11:41:17,030 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-10-29 11:41:17,036 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-10-29 11:41:17,037 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-10-29 11:41:17,038 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-10-29 11:41:17,039 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-10-29 11:41:17,042 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-10-29 11:41:17,046 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-10-29 11:41:17,048 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-10-29 11:41:17,050 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-10-29 11:41:17,053 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-10-29 11:41:17,060 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-10-29 11:41:17,068 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-10-29 11:41:17,070 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-10-29 11:41:17,072 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-10-29 11:41:17,073 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-10-29 11:41:17,076 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-10-29 11:41:17,082 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-10-29 11:41:17,082 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-10-29 11:41:17,082 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-10-29 11:41:17,085 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-10-29 11:41:17,085 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-10-29 11:41:17,086 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-10-29 11:41:17,087 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-10-29 11:41:17,088 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-10-29 11:41:17,090 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-10-29 11:41:17,090 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-10-29 11:41:17,104 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-10-29 11:41:17,104 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-10-29 11:41:17,105 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-10-29 11:41:17,105 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-10-29 11:41:17,105 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-10-29 11:41:17,106 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-10-29 11:41:17,107 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-10-29 11:41:17,114 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
[2020-10-29 11:41:17,160 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-10-29 11:41:17,161 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-10-29 11:41:17,164 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-10-29 11:41:17,165 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-10-29 11:41:17,165 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-10-29 11:41:17,165 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-10-29 11:41:17,165 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-10-29 11:41:17,166 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-10-29 11:41:17,166 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-10-29 11:41:17,166 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-10-29 11:41:17,167 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-10-29 11:41:17,167 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-10-29 11:41:17,167 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-10-29 11:41:17,168 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-10-29 11:41:17,168 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-10-29 11:41:17,168 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-10-29 11:41:17,168 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-10-29 11:41:17,168 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-10-29 11:41:17,169 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-10-29 11:41:17,169 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-10-29 11:41:17,169 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-10-29 11:41:17,169 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-10-29 11:41:17,169 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-10-29 11:41:17,170 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-10-29 11:41:17,170 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-10-29 11:41:17,170 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-10-29 11:41:17,170 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-10-29 11:41:17,170 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-10-29 11:41:17,170 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-10-29 11:41:17,171 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true;
[2020-10-29 11:41:17,557 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-10-29 11:41:17,597 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-10-29 11:41:17,600 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-10-29 11:41:17,601 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-10-29 11:41:17,604 INFO  L275        PluginConnector]: CDTParser initialized
[2020-10-29 11:41:17,605 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product63.cil.c
[2020-10-29 11:41:17,692 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b85870832/c74d4d541a0741dfabd07d6f1a1c9eeb/FLAGb4dda99e0
[2020-10-29 11:41:18,461 INFO  L306              CDTParser]: Found 1 translation units.
[2020-10-29 11:41:18,462 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product63.cil.c
[2020-10-29 11:41:18,479 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b85870832/c74d4d541a0741dfabd07d6f1a1c9eeb/FLAGb4dda99e0
[2020-10-29 11:41:18,773 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b85870832/c74d4d541a0741dfabd07d6f1a1c9eeb
[2020-10-29 11:41:18,776 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-10-29 11:41:18,784 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-10-29 11:41:18,788 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-10-29 11:41:18,789 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-10-29 11:41:18,793 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-10-29 11:41:18,794 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 11:41:18" (1/1) ...
[2020-10-29 11:41:18,797 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15a72b91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:41:18, skipping insertion in model container
[2020-10-29 11:41:18,798 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 11:41:18" (1/1) ...
[2020-10-29 11:41:18,806 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-10-29 11:41:18,850 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-10-29 11:41:19,158 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-29 11:41:19,171 INFO  L203         MainTranslator]: Completed pre-run
[2020-10-29 11:41:19,336 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-29 11:41:19,389 INFO  L208         MainTranslator]: Completed translation
[2020-10-29 11:41:19,389 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:41:19 WrapperNode
[2020-10-29 11:41:19,390 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-10-29 11:41:19,391 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-10-29 11:41:19,391 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-10-29 11:41:19,391 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-10-29 11:41:19,405 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:41:19" (1/1) ...
[2020-10-29 11:41:19,406 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:41:19" (1/1) ...
[2020-10-29 11:41:19,426 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:41:19" (1/1) ...
[2020-10-29 11:41:19,426 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:41:19" (1/1) ...
[2020-10-29 11:41:19,461 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:41:19" (1/1) ...
[2020-10-29 11:41:19,472 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:41:19" (1/1) ...
[2020-10-29 11:41:19,478 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:41:19" (1/1) ...
[2020-10-29 11:41:19,489 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-10-29 11:41:19,496 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-10-29 11:41:19,496 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-10-29 11:41:19,496 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-10-29 11:41:19,497 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:41:19" (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
[2020-10-29 11:41:19,626 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-10-29 11:41:19,626 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-10-29 11:41:19,626 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-10-29 11:41:19,627 INFO  L138     BoogieDeclarations]: Found implementation of procedure reach_error
[2020-10-29 11:41:19,627 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-10-29 11:41:19,628 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-10-29 11:41:19,628 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-10-29 11:41:19,628 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-10-29 11:41:19,628 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-10-29 11:41:19,628 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-10-29 11:41:19,629 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-10-29 11:41:19,630 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-10-29 11:41:19,630 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-10-29 11:41:19,630 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-10-29 11:41:19,630 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-10-29 11:41:19,631 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor
[2020-10-29 11:41:19,631 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery
[2020-10-29 11:41:19,631 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-10-29 11:41:19,631 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor
[2020-10-29 11:41:19,632 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-10-29 11:41:19,632 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-10-29 11:41:19,632 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-10-29 11:41:19,632 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-10-29 11:41:19,632 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-10-29 11:41:19,632 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-10-29 11:41:19,632 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-10-29 11:41:19,632 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-10-29 11:41:19,633 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-10-29 11:41:19,633 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-10-29 11:41:19,633 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-10-29 11:41:19,633 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-10-29 11:41:19,633 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-10-29 11:41:19,633 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-10-29 11:41:19,633 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-10-29 11:41:19,633 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-10-29 11:41:19,634 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-10-29 11:41:19,634 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-10-29 11:41:19,634 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-10-29 11:41:19,634 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-10-29 11:41:19,634 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-10-29 11:41:19,634 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-10-29 11:41:19,634 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-10-29 11:41:19,635 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-10-29 11:41:19,635 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-10-29 11:41:19,635 INFO  L130     BoogieDeclarations]: Found specification of procedure abort
[2020-10-29 11:41:19,635 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-10-29 11:41:19,635 INFO  L130     BoogieDeclarations]: Found specification of procedure reach_error
[2020-10-29 11:41:19,635 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-10-29 11:41:19,635 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-10-29 11:41:19,635 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-10-29 11:41:19,636 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-10-29 11:41:19,636 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-10-29 11:41:19,636 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-10-29 11:41:19,637 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-10-29 11:41:19,637 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-10-29 11:41:19,637 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-10-29 11:41:19,637 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-10-29 11:41:19,637 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-10-29 11:41:19,638 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-10-29 11:41:19,638 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-10-29 11:41:19,638 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-10-29 11:41:19,638 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-10-29 11:41:19,638 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-10-29 11:41:19,638 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-10-29 11:41:19,639 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-10-29 11:41:19,639 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-10-29 11:41:19,639 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-10-29 11:41:19,639 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-10-29 11:41:19,639 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-10-29 11:41:19,639 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-10-29 11:41:19,640 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-10-29 11:41:19,640 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-10-29 11:41:19,642 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-10-29 11:41:19,642 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-10-29 11:41:19,643 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-10-29 11:41:19,643 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-10-29 11:41:19,643 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-10-29 11:41:19,643 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor
[2020-10-29 11:41:19,643 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-10-29 11:41:19,643 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery
[2020-10-29 11:41:19,644 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-10-29 11:41:19,644 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor
[2020-10-29 11:41:19,644 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-10-29 11:41:19,644 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-10-29 11:41:19,644 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-10-29 11:41:19,644 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-10-29 11:41:19,645 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-10-29 11:41:19,645 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-10-29 11:41:19,645 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-10-29 11:41:19,645 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-10-29 11:41:19,645 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-10-29 11:41:19,645 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-10-29 11:41:19,645 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-10-29 11:41:19,646 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-10-29 11:41:19,646 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-10-29 11:41:19,646 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-10-29 11:41:19,646 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-10-29 11:41:19,646 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-10-29 11:41:19,646 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-10-29 11:41:19,646 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-10-29 11:41:19,647 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-10-29 11:41:19,647 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-10-29 11:41:20,838 INFO  L293             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-10-29 11:41:20,838 INFO  L298             CfgBuilder]: Removed 5 assume(true) statements.
[2020-10-29 11:41:20,842 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 11:41:20 BoogieIcfgContainer
[2020-10-29 11:41:20,843 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-10-29 11:41:20,845 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-10-29 11:41:20,845 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-10-29 11:41:20,848 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-10-29 11:41:20,849 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 11:41:18" (1/3) ...
[2020-10-29 11:41:20,850 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d23de39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 11:41:20, skipping insertion in model container
[2020-10-29 11:41:20,850 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:41:19" (2/3) ...
[2020-10-29 11:41:20,850 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d23de39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 11:41:20, skipping insertion in model container
[2020-10-29 11:41:20,851 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 11:41:20" (3/3) ...
[2020-10-29 11:41:20,852 INFO  L111   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product63.cil.c
[2020-10-29 11:41:20,866 INFO  L164   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-10-29 11:41:20,908 INFO  L176   ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations.
[2020-10-29 11:41:20,925 INFO  L253      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2020-10-29 11:41:20,965 INFO  L377      AbstractCegarLoop]: Interprodecural is true
[2020-10-29 11:41:20,966 INFO  L378      AbstractCegarLoop]: Hoare is true
[2020-10-29 11:41:20,966 INFO  L379      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-10-29 11:41:20,966 INFO  L380      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-10-29 11:41:20,966 INFO  L381      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-10-29 11:41:20,966 INFO  L382      AbstractCegarLoop]: Difference is false
[2020-10-29 11:41:20,966 INFO  L383      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-10-29 11:41:20,967 INFO  L387      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-10-29 11:41:20,992 INFO  L276                IsEmpty]: Start isEmpty. Operand 209 states.
[2020-10-29 11:41:21,005 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 54
[2020-10-29 11:41:21,006 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-29 11:41:21,007 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]
[2020-10-29 11:41:21,007 INFO  L429      AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-29 11:41:21,015 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-29 11:41:21,015 INFO  L82        PathProgramCache]: Analyzing trace with hash 1085252040, now seen corresponding path program 1 times
[2020-10-29 11:41:21,026 INFO  L162   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-29 11:41:21,026 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [53749039]
[2020-10-29 11:41:21,027 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-29 11:41:21,340 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:41:21,493 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:41:21,582 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:41:22,406 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:41:24,298 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:41:24,299 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 87
[2020-10-29 11:41:24,299 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-10-29 11:41:24,307 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2951
[2020-10-29 11:41:24,314 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:41:24,315 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:41:24,315 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-10-29 11:41:24,315 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-29 11:41:24,315 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 47
[2020-10-29 11:41:24,316 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 8
[2020-10-29 11:41:24,827 WARN  L193               SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 202
[2020-10-29 11:41:24,830 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-29 11:41:24,867 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:41:24,890 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:41:25,011 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:41:25,011 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-29 11:41:25,011 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:41:25,011 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 142
[2020-10-29 11:41:25,012 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:41:25,012 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:41:25,012 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-29 11:41:25,012 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-29 11:41:25,013 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-10-29 11:41:25,013 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-29 11:41:25,043 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-10-29 11:41:25,046 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:41:25,047 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:41:25,050 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:41:25,050 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-29 11:41:25,051 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:41:25,051 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-29 11:41:25,051 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:41:25,051 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:41:25,052 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-29 11:41:25,052 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-29 11:41:25,052 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-29 11:41:25,052 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-29 11:41:25,055 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-10-29 11:41:25,059 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:41:25,060 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:41:25,063 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:41:25,063 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-29 11:41:25,064 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:41:25,064 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-29 11:41:25,064 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:41:25,065 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:41:25,065 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-29 11:41:25,065 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-29 11:41:25,065 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-29 11:41:25,066 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-29 11:41:25,069 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-10-29 11:41:25,071 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:41:25,073 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:41:25,076 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:41:25,077 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-29 11:41:25,077 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:41:25,077 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-10-29 11:41:25,077 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:41:25,077 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:41:25,078 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-29 11:41:25,078 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-29 11:41:25,078 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-29 11:41:25,078 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-29 11:41:25,084 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-10-29 11:41:25,093 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:41:25,100 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:41:25,102 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:41:25,103 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-29 11:41:25,103 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:41:25,103 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-10-29 11:41:25,103 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:41:25,104 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:41:25,104 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-29 11:41:25,104 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-29 11:41:25,104 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-29 11:41:25,104 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-29 11:41:25,108 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2020-10-29 11:41:25,116 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:41:25,117 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:41:25,118 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:41:25,118 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-29 11:41:25,119 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:41:25,119 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-29 11:41:25,119 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:41:25,119 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:41:25,119 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-29 11:41:25,120 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-29 11:41:25,120 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-29 11:41:25,120 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-29 11:41:25,122 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2020-10-29 11:41:25,125 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:41:25,126 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:41:25,128 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:41:25,128 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-29 11:41:25,129 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:41:25,129 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-29 11:41:25,129 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:41:25,129 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:41:25,129 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-29 11:41:25,130 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-29 11:41:25,130 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-29 11:41:25,130 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-29 11:41:25,132 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44
[2020-10-29 11:41:25,133 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:41:25,134 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:41:25,136 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:41:25,136 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-29 11:41:25,137 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:41:25,137 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-29 11:41:25,137 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:41:25,137 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:41:25,137 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-29 11:41:25,137 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-29 11:41:25,138 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-29 11:41:25,138 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-29 11:41:25,160 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-29 11:41:25,161 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [53749039]
[2020-10-29 11:41:25,163 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-29 11:41:25,164 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-10-29 11:41:25,165 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950349045]
[2020-10-29 11:41:25,177 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-10-29 11:41:25,178 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-29 11:41:25,193 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-10-29 11:41:25,194 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-10-29 11:41:25,196 INFO  L87              Difference]: Start difference. First operand 209 states. Second operand 4 states.
[2020-10-29 11:41:25,643 WARN  L193               SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 204
[2020-10-29 11:41:29,079 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-29 11:41:29,079 INFO  L93              Difference]: Finished difference Result 550 states and 724 transitions.
[2020-10-29 11:41:29,080 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-10-29 11:41:29,082 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 53
[2020-10-29 11:41:29,082 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-29 11:41:29,100 INFO  L225             Difference]: With dead ends: 550
[2020-10-29 11:41:29,100 INFO  L226             Difference]: Without dead ends: 362
[2020-10-29 11:41:29,107 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-10-29 11:41:29,129 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 362 states.
[2020-10-29 11:41:29,300 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 295.
[2020-10-29 11:41:29,301 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 295 states.
[2020-10-29 11:41:29,305 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 360 transitions.
[2020-10-29 11:41:29,307 INFO  L78                 Accepts]: Start accepts. Automaton has 295 states and 360 transitions. Word has length 53
[2020-10-29 11:41:29,307 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-29 11:41:29,307 INFO  L481      AbstractCegarLoop]: Abstraction has 295 states and 360 transitions.
[2020-10-29 11:41:29,308 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-10-29 11:41:29,308 INFO  L276                IsEmpty]: Start isEmpty. Operand 295 states and 360 transitions.
[2020-10-29 11:41:29,313 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2020-10-29 11:41:29,314 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-29 11:41:29,314 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]
[2020-10-29 11:41:29,314 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-10-29 11:41:29,315 INFO  L429      AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-29 11:41:29,315 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-29 11:41:29,315 INFO  L82        PathProgramCache]: Analyzing trace with hash 549731654, now seen corresponding path program 1 times
[2020-10-29 11:41:29,316 INFO  L162   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-29 11:41:29,316 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1343526201]
[2020-10-29 11:41:29,316 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-29 11:41:29,356 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:41:29,384 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:41:30,609 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:41:30,609 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 98
[2020-10-29 11:41:30,609 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:41:30,610 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1251
[2020-10-29 11:41:30,610 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:41:30,610 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:41:30,610 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 13
[2020-10-29 11:41:30,610 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-29 11:41:30,611 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 78
[2020-10-29 11:41:30,611 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-29 11:41:31,071 WARN  L193               SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 202
[2020-10-29 11:41:31,072 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-29 11:41:31,092 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:41:31,105 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:41:31,189 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:41:31,189 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-29 11:41:31,189 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:41:31,189 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 96
[2020-10-29 11:41:31,190 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:41:31,190 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:41:31,190 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-29 11:41:31,190 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-29 11:41:31,190 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-10-29 11:41:31,191 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-29 11:41:31,221 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-10-29 11:41:31,222 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:41:31,223 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:41:31,224 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:41:31,225 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-29 11:41:31,225 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:41:31,225 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-29 11:41:31,225 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:41:31,226 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:41:31,226 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-29 11:41:31,226 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-29 11:41:31,226 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-29 11:41:31,226 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-29 11:41:31,228 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-10-29 11:41:31,229 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:41:31,230 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:41:31,231 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:41:31,232 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-29 11:41:31,232 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:41:31,232 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-29 11:41:31,232 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:41:31,232 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:41:31,233 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-29 11:41:31,233 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-29 11:41:31,233 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-29 11:41:31,233 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-29 11:41:31,234 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-10-29 11:41:31,236 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:41:31,237 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:41:31,239 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:41:31,239 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-29 11:41:31,239 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:41:31,239 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-29 11:41:31,240 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:41:31,240 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:41:31,240 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-29 11:41:31,240 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-29 11:41:31,240 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-29 11:41:31,240 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-29 11:41:31,242 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-10-29 11:41:31,243 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:41:31,244 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:41:31,246 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:41:31,246 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-29 11:41:31,246 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:41:31,246 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-29 11:41:31,246 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:41:31,247 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:41:31,247 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-29 11:41:31,247 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-29 11:41:31,247 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-29 11:41:31,248 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-29 11:41:31,264 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2020-10-29 11:41:31,265 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:41:31,267 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:41:31,269 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:41:31,269 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-10-29 11:41:31,269 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:41:31,269 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-29 11:41:31,270 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:41:31,270 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:41:31,270 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-29 11:41:31,270 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-29 11:41:31,270 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-10-29 11:41:31,271 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-29 11:41:31,272 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43
[2020-10-29 11:41:31,273 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:41:31,274 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:41:31,276 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:41:31,276 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-29 11:41:31,276 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:41:31,277 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-29 11:41:31,277 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:41:31,277 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:41:31,277 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-29 11:41:31,277 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-29 11:41:31,278 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-29 11:41:31,278 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-29 11:41:31,279 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49
[2020-10-29 11:41:31,281 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:41:31,282 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:41:31,286 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:41:31,287 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-29 11:41:31,287 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:41:31,287 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-10-29 11:41:31,287 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:41:31,287 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:41:31,288 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-10-29 11:41:31,288 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-29 11:41:31,288 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-29 11:41:31,288 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-29 11:41:31,303 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55
[2020-10-29 11:41:31,305 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:41:31,305 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:41:31,306 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:41:31,307 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-29 11:41:31,307 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:41:31,307 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-29 11:41:31,307 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:41:31,307 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:41:31,308 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-29 11:41:31,308 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-29 11:41:31,308 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-29 11:41:31,308 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-29 11:41:31,323 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-29 11:41:31,323 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1343526201]
[2020-10-29 11:41:31,323 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-29 11:41:31,324 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2020-10-29 11:41:31,324 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428210296]
[2020-10-29 11:41:31,325 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-10-29 11:41:31,326 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-29 11:41:31,326 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-10-29 11:41:31,326 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72
[2020-10-29 11:41:31,327 INFO  L87              Difference]: Start difference. First operand 295 states and 360 transitions. Second operand 9 states.
[2020-10-29 11:41:31,909 WARN  L193               SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 204
[2020-10-29 11:41:34,242 WARN  L193               SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 206
[2020-10-29 11:41:34,864 WARN  L193               SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 209
[2020-10-29 11:41:35,326 WARN  L193               SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 209
[2020-10-29 11:41:35,801 WARN  L193               SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 204
[2020-10-29 11:41:36,463 WARN  L193               SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 208
[2020-10-29 11:41:38,848 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-29 11:41:38,848 INFO  L93              Difference]: Finished difference Result 989 states and 1405 transitions.
[2020-10-29 11:41:38,849 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-10-29 11:41:38,850 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 64
[2020-10-29 11:41:38,850 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-29 11:41:38,861 INFO  L225             Difference]: With dead ends: 989
[2020-10-29 11:41:38,862 INFO  L226             Difference]: Without dead ends: 674
[2020-10-29 11:41:38,869 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240
[2020-10-29 11:41:38,870 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 674 states.
[2020-10-29 11:41:39,160 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 536.
[2020-10-29 11:41:39,161 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 536 states.
[2020-10-29 11:41:39,167 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 673 transitions.
[2020-10-29 11:41:39,168 INFO  L78                 Accepts]: Start accepts. Automaton has 536 states and 673 transitions. Word has length 64
[2020-10-29 11:41:39,168 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-29 11:41:39,169 INFO  L481      AbstractCegarLoop]: Abstraction has 536 states and 673 transitions.
[2020-10-29 11:41:39,169 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-10-29 11:41:39,169 INFO  L276                IsEmpty]: Start isEmpty. Operand 536 states and 673 transitions.
[2020-10-29 11:41:39,181 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 69
[2020-10-29 11:41:39,181 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-29 11:41:39,181 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, 1, 1, 1, 1]
[2020-10-29 11:41:39,182 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-10-29 11:41:39,182 INFO  L429      AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-29 11:41:39,182 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-29 11:41:39,183 INFO  L82        PathProgramCache]: Analyzing trace with hash 2101557664, now seen corresponding path program 1 times
[2020-10-29 11:41:39,183 INFO  L162   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-29 11:41:39,183 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [245186623]
[2020-10-29 11:41:39,183 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-29 11:41:39,273 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-10-29 11:41:39,277 INFO  L173   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-10-29 11:41:39,278 INFO  L523         BasicCegarLoop]: Counterexample might be feasible
[2020-10-29 11:41:39,283 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-10-29 11:41:39,328 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 11:41:39 BoogieIcfgContainer
[2020-10-29 11:41:39,328 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-10-29 11:41:39,332 INFO  L168              Benchmark]: Toolchain (without parser) took 20551.55 ms. Allocated memory was 163.6 MB in the beginning and 497.0 MB in the end (delta: 333.4 MB). Free memory was 136.9 MB in the beginning and 394.3 MB in the end (delta: -257.3 MB). Peak memory consumption was 77.1 MB. Max. memory is 8.0 GB.
[2020-10-29 11:41:39,333 INFO  L168              Benchmark]: CDTParser took 0.56 ms. Allocated memory is still 163.6 MB. Free memory is still 137.8 MB. There was no memory consumed. Max. memory is 8.0 GB.
[2020-10-29 11:41:39,334 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 601.87 ms. Allocated memory is still 163.6 MB. Free memory was 136.3 MB in the beginning and 114.5 MB in the end (delta: 21.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB.
[2020-10-29 11:41:39,335 INFO  L168              Benchmark]: Boogie Preprocessor took 98.24 ms. Allocated memory is still 163.6 MB. Free memory was 114.5 MB in the beginning and 110.5 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB.
[2020-10-29 11:41:39,336 INFO  L168              Benchmark]: RCFGBuilder took 1346.71 ms. Allocated memory is still 163.6 MB. Free memory was 110.3 MB in the beginning and 55.4 MB in the end (delta: 54.9 MB). Peak memory consumption was 54.7 MB. Max. memory is 8.0 GB.
[2020-10-29 11:41:39,337 INFO  L168              Benchmark]: TraceAbstraction took 18483.61 ms. Allocated memory was 163.6 MB in the beginning and 497.0 MB in the end (delta: 333.4 MB). Free memory was 54.9 MB in the beginning and 394.3 MB in the end (delta: -339.4 MB). There was no memory consumed. Max. memory is 8.0 GB.
[2020-10-29 11:41:39,349 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.56 ms. Allocated memory is still 163.6 MB. Free memory is still 137.8 MB. There was no memory consumed. Max. memory is 8.0 GB.
 * CACSL2BoogieTranslator took 601.87 ms. Allocated memory is still 163.6 MB. Free memory was 136.3 MB in the beginning and 114.5 MB in the end (delta: 21.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB.
 * Boogie Preprocessor took 98.24 ms. Allocated memory is still 163.6 MB. Free memory was 114.5 MB in the beginning and 110.5 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB.
 * RCFGBuilder took 1346.71 ms. Allocated memory is still 163.6 MB. Free memory was 110.3 MB in the beginning and 55.4 MB in the end (delta: 54.9 MB). Peak memory consumption was 54.7 MB. Max. memory is 8.0 GB.
 * TraceAbstraction took 18483.61 ms. Allocated memory was 163.6 MB in the beginning and 497.0 MB in the end (delta: 333.4 MB). Free memory was 54.9 MB in the beginning and 394.3 MB in the end (delta: -339.4 MB). There was no memory consumed. Max. memory is 8.0 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L42]               int cleanupTimeShifts  =    4;
[L190]              int pumpRunning  =    0;
[L191]              int systemActive  =    1;
[L514]              int waterLevel  =    1;
[L515]              int methaneLevelCritical  =    0;
[L829]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L123]              int retValue_acc ;
[L124]              int tmp ;
[L128]  FCALL       select_helpers()
[L129]  FCALL       select_features()
[L130]  CALL, EXPR  valid_product()
[L172]              int retValue_acc ;
[L175]              retValue_acc = 1
[L176]              return (retValue_acc);
[L130]  RET, EXPR   valid_product()
[L130]              tmp = valid_product()
[L132]  COND TRUE   \read(tmp)
[L134]  FCALL       setup()
[L135]  CALL        runTest()
[L114]  CALL        test()
[L447]              int splverifierCounter ;
[L448]              int tmp ;
[L449]              int tmp___0 ;
[L450]              int tmp___1 ;
[L451]              int tmp___2 ;
[L454]              splverifierCounter = 0
[L456]  COND TRUE   1
[L458]  COND TRUE   splverifierCounter < 4
[L464]              tmp = __VERIFIER_nondet_int()
[L466]  COND TRUE   \read(tmp)
[L468]  CALL        waterRise()
[L532]  COND TRUE   waterLevel < 2
[L533]              waterLevel = waterLevel + 1
[L468]  RET         waterRise()
[L474]              tmp___0 = __VERIFIER_nondet_int()
[L476]  COND FALSE  !(\read(tmp___0))
[L484]              tmp___2 = __VERIFIER_nondet_int()
[L486]  COND FALSE  !(\read(tmp___2))
[L490]              tmp___1 = __VERIFIER_nondet_int()
[L492]  COND TRUE   \read(tmp___1)
[L494]  CALL        stopSystem()
[L434]  COND FALSE  !(\read(pumpRunning))
[L441]              systemActive = 0
[L494]  RET         stopSystem()
[L501]  CALL        timeShift()
[L198]  COND FALSE  !(\read(pumpRunning))
[L205]  COND FALSE  !(\read(systemActive))
[L213]  CALL        __utac_acc__Specification3_spec__1()
[L627]              int tmp ;
[L628]              int tmp___0 ;
[L629]              int tmp___1 ;
[L633]  CALL, EXPR  isMethaneLevelCritical()
[L553]              int retValue_acc ;
[L556]              retValue_acc = methaneLevelCritical
[L557]              return (retValue_acc);
[L633]  RET, EXPR   isMethaneLevelCritical()
[L633]              tmp = isMethaneLevelCritical()
[L635]  COND FALSE  !(\read(tmp))
[L639]  CALL, EXPR  getWaterLevel()
[L585]              int retValue_acc ;
[L588]              retValue_acc = waterLevel
[L589]              return (retValue_acc);
[L639]  RET, EXPR   getWaterLevel()
[L639]              tmp___0 = getWaterLevel()
[L641]  COND TRUE   tmp___0 == 2
[L643]  CALL, EXPR  isPumpRunning()
[L348]              int retValue_acc ;
[L351]              retValue_acc = pumpRunning
[L352]              return (retValue_acc);
[L643]  RET, EXPR   isPumpRunning()
[L643]              tmp___1 = isPumpRunning()
[L645]  COND FALSE  !(\read(tmp___1))
[L649]  CALL        __automaton_fail()
[L621]  CALL        reach_error()
[L3]                __assert_fail("0", "minepump_spec3_product63.cil.c", 3, "reach_error")

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 44 procedures, 273 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 18.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 11.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 346 SDtfs, 853 SDslu, 240 SDs, 0 SdLazy, 1523 SolverSat, 552 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=536occurred in iteration=2, 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, 2 MinimizatonAttempts, 205 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.7s InterpolantComputationTime, 185 NumberOfCodeBlocks, 185 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 115 ConstructedInterpolants, 0 QuantifiedInterpolants, 39072 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...