/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_product51.cil.c


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


This is Ultimate 0.2.0-0f64333
[2020-10-29 11:39:19,451 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-10-29 11:39:19,454 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-10-29 11:39:19,491 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-10-29 11:39:19,492 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-10-29 11:39:19,493 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-10-29 11:39:19,495 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-10-29 11:39:19,497 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-10-29 11:39:19,499 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-10-29 11:39:19,501 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-10-29 11:39:19,502 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-10-29 11:39:19,503 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-10-29 11:39:19,504 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-10-29 11:39:19,505 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-10-29 11:39:19,506 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-10-29 11:39:19,508 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-10-29 11:39:19,509 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-10-29 11:39:19,510 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-10-29 11:39:19,513 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-10-29 11:39:19,515 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-10-29 11:39:19,517 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-10-29 11:39:19,519 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-10-29 11:39:19,520 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-10-29 11:39:19,521 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-10-29 11:39:19,527 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-10-29 11:39:19,528 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-10-29 11:39:19,530 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-10-29 11:39:19,532 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-10-29 11:39:19,532 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-10-29 11:39:19,533 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-10-29 11:39:19,534 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-10-29 11:39:19,538 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-10-29 11:39:19,540 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-10-29 11:39:19,542 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-10-29 11:39:19,543 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-10-29 11:39:19,544 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-10-29 11:39:19,565 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-10-29 11:39:19,566 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-10-29 11:39:19,566 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-10-29 11:39:19,578 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-10-29 11:39:19,579 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-10-29 11:39:19,581 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 11:39:19,635 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-10-29 11:39:19,636 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-10-29 11:39:19,640 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-10-29 11:39:19,640 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-10-29 11:39:19,640 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-10-29 11:39:19,641 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-10-29 11:39:19,641 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-10-29 11:39:19,642 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-10-29 11:39:19,642 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-10-29 11:39:19,642 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-10-29 11:39:19,643 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-10-29 11:39:19,643 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-10-29 11:39:19,643 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-10-29 11:39:19,644 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-10-29 11:39:19,644 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-10-29 11:39:19,644 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-10-29 11:39:19,644 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-10-29 11:39:19,644 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-10-29 11:39:19,645 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-10-29 11:39:19,645 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-10-29 11:39:19,645 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-10-29 11:39:19,645 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-10-29 11:39:19,646 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-10-29 11:39:19,646 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-10-29 11:39:19,646 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-10-29 11:39:19,646 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-10-29 11:39:19,646 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-10-29 11:39:19,647 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-10-29 11:39:19,647 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-10-29 11:39:19,647 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true;
[2020-10-29 11:39:20,035 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-10-29 11:39:20,069 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-10-29 11:39:20,073 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-10-29 11:39:20,074 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-10-29 11:39:20,075 INFO  L275        PluginConnector]: CDTParser initialized
[2020-10-29 11:39:20,076 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product51.cil.c
[2020-10-29 11:39:20,159 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/89a2e4202/5cb78941f8db422d868b8d61cb030a64/FLAGd694d8bf5
[2020-10-29 11:39:20,876 INFO  L306              CDTParser]: Found 1 translation units.
[2020-10-29 11:39:20,882 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product51.cil.c
[2020-10-29 11:39:20,895 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/89a2e4202/5cb78941f8db422d868b8d61cb030a64/FLAGd694d8bf5
[2020-10-29 11:39:21,095 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/89a2e4202/5cb78941f8db422d868b8d61cb030a64
[2020-10-29 11:39:21,099 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-10-29 11:39:21,110 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-10-29 11:39:21,114 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-10-29 11:39:21,114 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-10-29 11:39:21,118 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-10-29 11:39:21,119 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 11:39:21" (1/1) ...
[2020-10-29 11:39:21,124 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2036dcc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:39:21, skipping insertion in model container
[2020-10-29 11:39:21,124 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 11:39:21" (1/1) ...
[2020-10-29 11:39:21,133 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-10-29 11:39:21,183 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-10-29 11:39:21,541 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-29 11:39:21,564 INFO  L203         MainTranslator]: Completed pre-run
[2020-10-29 11:39:21,784 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-29 11:39:21,827 INFO  L208         MainTranslator]: Completed translation
[2020-10-29 11:39:21,827 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:39:21 WrapperNode
[2020-10-29 11:39:21,827 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-10-29 11:39:21,829 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-10-29 11:39:21,829 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-10-29 11:39:21,829 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-10-29 11:39:21,844 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:39:21" (1/1) ...
[2020-10-29 11:39:21,844 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:39:21" (1/1) ...
[2020-10-29 11:39:21,863 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:39:21" (1/1) ...
[2020-10-29 11:39:21,863 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:39:21" (1/1) ...
[2020-10-29 11:39:21,897 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:39:21" (1/1) ...
[2020-10-29 11:39:21,908 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:39:21" (1/1) ...
[2020-10-29 11:39:21,914 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:39:21" (1/1) ...
[2020-10-29 11:39:21,922 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-10-29 11:39:21,923 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-10-29 11:39:21,923 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-10-29 11:39:21,923 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-10-29 11:39:21,924 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:39:21" (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 11:39:22,006 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-10-29 11:39:22,007 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-10-29 11:39:22,007 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-10-29 11:39:22,008 INFO  L138     BoogieDeclarations]: Found implementation of procedure reach_error
[2020-10-29 11:39:22,008 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-10-29 11:39:22,008 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-10-29 11:39:22,009 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-10-29 11:39:22,009 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-10-29 11:39:22,009 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-10-29 11:39:22,009 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-10-29 11:39:22,010 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-10-29 11:39:22,010 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-10-29 11:39:22,011 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-10-29 11:39:22,011 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-10-29 11:39:22,011 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-10-29 11:39:22,012 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor
[2020-10-29 11:39:22,012 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-10-29 11:39:22,012 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-10-29 11:39:22,012 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-10-29 11:39:22,013 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-10-29 11:39:22,013 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-10-29 11:39:22,013 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-10-29 11:39:22,013 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-10-29 11:39:22,013 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-10-29 11:39:22,014 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-10-29 11:39:22,014 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-10-29 11:39:22,014 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-10-29 11:39:22,014 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-10-29 11:39:22,014 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-10-29 11:39:22,014 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-10-29 11:39:22,014 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-10-29 11:39:22,015 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-10-29 11:39:22,015 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-10-29 11:39:22,015 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-10-29 11:39:22,015 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-10-29 11:39:22,015 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-10-29 11:39:22,016 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-10-29 11:39:22,016 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-10-29 11:39:22,016 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-10-29 11:39:22,016 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-10-29 11:39:22,016 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-10-29 11:39:22,017 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-10-29 11:39:22,017 INFO  L130     BoogieDeclarations]: Found specification of procedure abort
[2020-10-29 11:39:22,017 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-10-29 11:39:22,017 INFO  L130     BoogieDeclarations]: Found specification of procedure reach_error
[2020-10-29 11:39:22,018 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-10-29 11:39:22,018 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-10-29 11:39:22,018 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-10-29 11:39:22,018 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-10-29 11:39:22,019 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-10-29 11:39:22,019 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-10-29 11:39:22,019 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-10-29 11:39:22,019 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-10-29 11:39:22,020 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-10-29 11:39:22,020 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-10-29 11:39:22,020 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-10-29 11:39:22,020 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-10-29 11:39:22,020 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-10-29 11:39:22,021 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-10-29 11:39:22,021 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-10-29 11:39:22,021 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-10-29 11:39:22,021 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-10-29 11:39:22,022 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-10-29 11:39:22,022 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-10-29 11:39:22,022 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-10-29 11:39:22,022 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-10-29 11:39:22,022 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-10-29 11:39:22,022 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-10-29 11:39:22,023 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor
[2020-10-29 11:39:22,023 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-10-29 11:39:22,023 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-10-29 11:39:22,023 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-10-29 11:39:22,025 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-10-29 11:39:22,025 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-10-29 11:39:22,025 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-10-29 11:39:22,026 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-10-29 11:39:22,026 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-10-29 11:39:22,026 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-10-29 11:39:22,026 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-10-29 11:39:22,026 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-10-29 11:39:22,026 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-10-29 11:39:22,027 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-10-29 11:39:22,027 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-10-29 11:39:22,027 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-10-29 11:39:22,027 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-10-29 11:39:22,027 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-10-29 11:39:22,027 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-10-29 11:39:22,027 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-10-29 11:39:22,028 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-10-29 11:39:22,028 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-10-29 11:39:22,028 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-10-29 11:39:22,028 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-10-29 11:39:22,028 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-10-29 11:39:22,028 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-10-29 11:39:22,029 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-10-29 11:39:22,029 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-10-29 11:39:22,029 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-10-29 11:39:22,029 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-10-29 11:39:23,379 INFO  L293             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-10-29 11:39:23,379 INFO  L298             CfgBuilder]: Removed 5 assume(true) statements.
[2020-10-29 11:39:23,382 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 11:39:23 BoogieIcfgContainer
[2020-10-29 11:39:23,382 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-10-29 11:39:23,384 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-10-29 11:39:23,384 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-10-29 11:39:23,388 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-10-29 11:39:23,388 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 11:39:21" (1/3) ...
[2020-10-29 11:39:23,389 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@519970f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 11:39:23, skipping insertion in model container
[2020-10-29 11:39:23,390 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:39:21" (2/3) ...
[2020-10-29 11:39:23,390 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@519970f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 11:39:23, skipping insertion in model container
[2020-10-29 11:39:23,390 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 11:39:23" (3/3) ...
[2020-10-29 11:39:23,392 INFO  L111   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product51.cil.c
[2020-10-29 11:39:23,405 INFO  L164   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-10-29 11:39:23,411 INFO  L176   ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations.
[2020-10-29 11:39:23,426 INFO  L253      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2020-10-29 11:39:23,457 INFO  L377      AbstractCegarLoop]: Interprodecural is true
[2020-10-29 11:39:23,457 INFO  L378      AbstractCegarLoop]: Hoare is true
[2020-10-29 11:39:23,457 INFO  L379      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-10-29 11:39:23,457 INFO  L380      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-10-29 11:39:23,457 INFO  L381      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-10-29 11:39:23,457 INFO  L382      AbstractCegarLoop]: Difference is false
[2020-10-29 11:39:23,458 INFO  L383      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-10-29 11:39:23,458 INFO  L387      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-10-29 11:39:23,482 INFO  L276                IsEmpty]: Start isEmpty. Operand 190 states.
[2020-10-29 11:39:23,493 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 54
[2020-10-29 11:39:23,494 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-29 11:39:23,495 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 11:39:23,496 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 11:39:23,502 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-29 11:39:23,503 INFO  L82        PathProgramCache]: Analyzing trace with hash 445197258, now seen corresponding path program 1 times
[2020-10-29 11:39:23,513 INFO  L162   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-29 11:39:23,513 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1459580574]
[2020-10-29 11:39:23,514 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-29 11:39:23,900 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:39:23,979 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:39:24,100 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:39:25,012 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:39:27,012 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:39:27,013 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 87
[2020-10-29 11:39:27,014 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-10-29 11:39:27,014 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3106
[2020-10-29 11:39:27,017 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:39:27,020 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:39:27,020 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-10-29 11:39:27,021 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-29 11:39:27,021 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 47
[2020-10-29 11:39:27,021 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 6
[2020-10-29 11:39:27,770 WARN  L193               SmtUtils]: Spent 641.00 ms on a formula simplification that was a NOOP. DAG size: 202
[2020-10-29 11:39:27,774 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-29 11:39:27,824 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:39:27,851 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:39:27,978 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:39:27,980 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-29 11:39:27,980 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:39:27,980 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 153
[2020-10-29 11:39:27,980 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:39:27,981 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:39:27,981 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-29 11:39:27,981 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-29 11:39:27,982 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-10-29 11:39:27,982 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-29 11:39:28,038 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-10-29 11:39:28,042 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:39:28,044 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:39:28,048 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:39:28,048 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-29 11:39:28,049 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:39:28,050 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-10-29 11:39:28,050 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:39:28,050 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:39:28,050 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-29 11:39:28,051 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-29 11:39:28,051 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-29 11:39:28,051 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-29 11:39:28,053 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-10-29 11:39:28,056 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:39:28,057 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:39:28,060 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:39:28,060 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-29 11:39:28,061 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:39:28,061 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-29 11:39:28,061 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:39:28,061 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:39:28,062 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-29 11:39:28,062 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-29 11:39:28,062 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-29 11:39:28,062 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-29 11:39:28,065 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-10-29 11:39:28,070 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:39:28,071 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:39:28,080 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:39:28,080 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-29 11:39:28,080 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:39:28,081 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-10-29 11:39:28,081 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:39:28,081 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:39:28,081 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-29 11:39:28,082 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-29 11:39:28,082 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-29 11:39:28,082 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-29 11:39:28,085 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-10-29 11:39:28,098 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:39:28,100 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:39:28,104 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:39:28,104 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-29 11:39:28,104 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:39:28,104 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-10-29 11:39:28,105 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:39:28,105 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:39:28,105 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-29 11:39:28,106 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-29 11:39:28,106 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-29 11:39:28,106 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-29 11:39:28,109 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2020-10-29 11:39:28,115 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:39:28,117 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:39:28,118 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:39:28,118 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-29 11:39:28,119 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:39:28,119 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-29 11:39:28,119 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:39:28,120 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:39:28,120 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-29 11:39:28,120 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-29 11:39:28,120 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-29 11:39:28,121 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-29 11:39:28,125 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2020-10-29 11:39:28,128 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:39:28,129 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:39:28,131 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:39:28,131 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-29 11:39:28,131 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:39:28,132 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-29 11:39:28,132 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:39:28,132 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:39:28,132 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-29 11:39:28,133 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-29 11:39:28,133 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-29 11:39:28,133 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-29 11:39:28,136 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44
[2020-10-29 11:39:28,138 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:39:28,140 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:39:28,141 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:39:28,141 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-29 11:39:28,142 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:39:28,142 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-29 11:39:28,142 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:39:28,143 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:39:28,143 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-29 11:39:28,143 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-29 11:39:28,143 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-29 11:39:28,144 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-29 11:39:28,163 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 11:39:28,164 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1459580574]
[2020-10-29 11:39:28,166 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-29 11:39:28,167 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-10-29 11:39:28,168 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615308278]
[2020-10-29 11:39:28,176 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-10-29 11:39:28,176 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-29 11:39:28,192 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-10-29 11:39:28,193 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-10-29 11:39:28,200 INFO  L87              Difference]: Start difference. First operand 190 states. Second operand 4 states.
[2020-10-29 11:39:28,999 WARN  L193               SmtUtils]: Spent 639.00 ms on a formula simplification that was a NOOP. DAG size: 204
[2020-10-29 11:39:32,905 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-29 11:39:32,905 INFO  L93              Difference]: Finished difference Result 476 states and 627 transitions.
[2020-10-29 11:39:32,907 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-10-29 11:39:32,909 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 53
[2020-10-29 11:39:32,909 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-29 11:39:32,928 INFO  L225             Difference]: With dead ends: 476
[2020-10-29 11:39:32,929 INFO  L226             Difference]: Without dead ends: 310
[2020-10-29 11:39:32,934 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-10-29 11:39:32,955 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 310 states.
[2020-10-29 11:39:33,139 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 251.
[2020-10-29 11:39:33,141 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 251 states.
[2020-10-29 11:39:33,147 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 302 transitions.
[2020-10-29 11:39:33,149 INFO  L78                 Accepts]: Start accepts. Automaton has 251 states and 302 transitions. Word has length 53
[2020-10-29 11:39:33,150 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-29 11:39:33,151 INFO  L481      AbstractCegarLoop]: Abstraction has 251 states and 302 transitions.
[2020-10-29 11:39:33,151 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-10-29 11:39:33,151 INFO  L276                IsEmpty]: Start isEmpty. Operand 251 states and 302 transitions.
[2020-10-29 11:39:33,166 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2020-10-29 11:39:33,166 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-29 11:39:33,166 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 11:39:33,167 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-10-29 11:39:33,167 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 11:39:33,167 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-29 11:39:33,168 INFO  L82        PathProgramCache]: Analyzing trace with hash -330865691, now seen corresponding path program 1 times
[2020-10-29 11:39:33,168 INFO  L162   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-29 11:39:33,168 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1684605576]
[2020-10-29 11:39:33,168 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-29 11:39:33,230 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:39:33,255 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:39:34,447 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:39:34,447 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 98
[2020-10-29 11:39:34,448 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:39:34,448 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1214
[2020-10-29 11:39:34,448 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:39:34,448 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:39:34,449 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 13
[2020-10-29 11:39:34,449 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-29 11:39:34,449 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 78
[2020-10-29 11:39:34,449 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-29 11:39:35,086 WARN  L193               SmtUtils]: Spent 504.00 ms on a formula simplification that was a NOOP. DAG size: 202
[2020-10-29 11:39:35,091 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-29 11:39:35,118 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:39:35,134 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:39:35,220 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:39:35,221 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-29 11:39:35,221 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:39:35,221 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 101
[2020-10-29 11:39:35,222 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:39:35,222 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:39:35,222 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-29 11:39:35,222 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-29 11:39:35,222 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-10-29 11:39:35,223 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-29 11:39:35,264 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-10-29 11:39:35,265 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:39:35,268 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:39:35,270 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:39:35,270 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-29 11:39:35,270 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:39:35,270 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-10-29 11:39:35,271 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:39:35,271 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:39:35,271 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-29 11:39:35,271 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-29 11:39:35,271 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-29 11:39:35,272 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-29 11:39:35,273 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-10-29 11:39:35,274 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:39:35,275 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:39:35,276 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:39:35,276 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-29 11:39:35,277 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:39:35,277 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-29 11:39:35,277 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:39:35,277 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:39:35,278 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-29 11:39:35,278 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-29 11:39:35,278 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-29 11:39:35,278 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-29 11:39:35,279 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-10-29 11:39:35,281 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:39:35,282 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:39:35,284 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:39:35,284 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-29 11:39:35,284 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:39:35,284 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-29 11:39:35,285 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:39:35,285 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:39:35,285 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-29 11:39:35,285 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-29 11:39:35,285 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-29 11:39:35,286 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-29 11:39:35,289 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-10-29 11:39:35,290 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:39:35,291 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:39:35,294 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:39:35,294 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-29 11:39:35,294 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:39:35,294 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-29 11:39:35,295 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:39:35,295 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:39:35,295 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-29 11:39:35,295 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-29 11:39:35,295 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-29 11:39:35,296 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-29 11:39:35,320 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2020-10-29 11:39:35,323 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:39:35,324 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:39:35,327 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:39:35,327 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-10-29 11:39:35,330 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:39:35,330 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-29 11:39:35,330 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:39:35,330 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:39:35,331 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-29 11:39:35,331 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-29 11:39:35,331 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-10-29 11:39:35,331 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-29 11:39:35,335 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43
[2020-10-29 11:39:35,337 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:39:35,338 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:39:35,340 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:39:35,340 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-29 11:39:35,340 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:39:35,341 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-29 11:39:35,343 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:39:35,344 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:39:35,344 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-29 11:39:35,344 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-29 11:39:35,344 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-29 11:39:35,344 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-29 11:39:35,346 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49
[2020-10-29 11:39:35,350 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:39:35,352 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:39:35,356 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:39:35,356 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-29 11:39:35,357 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:39:35,361 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-10-29 11:39:35,361 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:39:35,361 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:39:35,362 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-10-29 11:39:35,362 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-29 11:39:35,362 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-29 11:39:35,363 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-29 11:39:35,390 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55
[2020-10-29 11:39:35,391 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:39:35,392 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:39:35,393 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:39:35,393 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-29 11:39:35,394 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:39:35,399 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-29 11:39:35,400 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:39:35,400 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:39:35,401 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-29 11:39:35,401 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-29 11:39:35,401 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-29 11:39:35,402 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-29 11:39:35,428 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 11:39:35,428 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1684605576]
[2020-10-29 11:39:35,429 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-29 11:39:35,429 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2020-10-29 11:39:35,431 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023655675]
[2020-10-29 11:39:35,434 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-10-29 11:39:35,434 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-29 11:39:35,435 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-10-29 11:39:35,436 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72
[2020-10-29 11:39:35,436 INFO  L87              Difference]: Start difference. First operand 251 states and 302 transitions. Second operand 9 states.
[2020-10-29 11:39:36,267 WARN  L193               SmtUtils]: Spent 567.00 ms on a formula simplification that was a NOOP. DAG size: 204
[2020-10-29 11:39:39,042 WARN  L193               SmtUtils]: Spent 553.00 ms on a formula simplification that was a NOOP. DAG size: 206
[2020-10-29 11:39:39,900 WARN  L193               SmtUtils]: Spent 588.00 ms on a formula simplification that was a NOOP. DAG size: 209
[2020-10-29 11:39:40,570 WARN  L193               SmtUtils]: Spent 596.00 ms on a formula simplification that was a NOOP. DAG size: 209
[2020-10-29 11:39:41,252 WARN  L193               SmtUtils]: Spent 601.00 ms on a formula simplification that was a NOOP. DAG size: 204
[2020-10-29 11:39:42,292 WARN  L193               SmtUtils]: Spent 608.00 ms on a formula simplification that was a NOOP. DAG size: 208
[2020-10-29 11:39:45,282 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-29 11:39:45,282 INFO  L93              Difference]: Finished difference Result 841 states and 1199 transitions.
[2020-10-29 11:39:45,283 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-10-29 11:39:45,283 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 64
[2020-10-29 11:39:45,284 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-29 11:39:45,293 INFO  L225             Difference]: With dead ends: 841
[2020-10-29 11:39:45,293 INFO  L226             Difference]: Without dead ends: 570
[2020-10-29 11:39:45,299 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240
[2020-10-29 11:39:45,301 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 570 states.
[2020-10-29 11:39:45,523 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 448.
[2020-10-29 11:39:45,523 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 448 states.
[2020-10-29 11:39:45,527 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 553 transitions.
[2020-10-29 11:39:45,527 INFO  L78                 Accepts]: Start accepts. Automaton has 448 states and 553 transitions. Word has length 64
[2020-10-29 11:39:45,528 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-29 11:39:45,528 INFO  L481      AbstractCegarLoop]: Abstraction has 448 states and 553 transitions.
[2020-10-29 11:39:45,528 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-10-29 11:39:45,528 INFO  L276                IsEmpty]: Start isEmpty. Operand 448 states and 553 transitions.
[2020-10-29 11:39:45,531 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 69
[2020-10-29 11:39:45,532 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-29 11:39:45,532 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 11:39:45,532 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-10-29 11:39:45,532 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 11:39:45,533 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-29 11:39:45,533 INFO  L82        PathProgramCache]: Analyzing trace with hash 915625439, now seen corresponding path program 1 times
[2020-10-29 11:39:45,533 INFO  L162   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-29 11:39:45,534 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [480954416]
[2020-10-29 11:39:45,534 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-29 11:39:45,581 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-10-29 11:39:45,585 INFO  L173   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-10-29 11:39:45,585 INFO  L523         BasicCegarLoop]: Counterexample might be feasible
[2020-10-29 11:39:45,590 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-10-29 11:39:45,620 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 11:39:45 BoogieIcfgContainer
[2020-10-29 11:39:45,620 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-10-29 11:39:45,622 INFO  L168              Benchmark]: Toolchain (without parser) took 24520.37 ms. Allocated memory was 151.0 MB in the beginning and 415.2 MB in the end (delta: 264.2 MB). Free memory was 107.5 MB in the beginning and 320.3 MB in the end (delta: -212.8 MB). Peak memory consumption was 52.0 MB. Max. memory is 8.0 GB.
[2020-10-29 11:39:45,623 INFO  L168              Benchmark]: CDTParser took 0.67 ms. Allocated memory is still 151.0 MB. Free memory is still 124.9 MB. There was no memory consumed. Max. memory is 8.0 GB.
[2020-10-29 11:39:45,624 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 714.24 ms. Allocated memory is still 151.0 MB. Free memory was 106.9 MB in the beginning and 124.9 MB in the end (delta: -18.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB.
[2020-10-29 11:39:45,625 INFO  L168              Benchmark]: Boogie Preprocessor took 93.37 ms. Allocated memory is still 151.0 MB. Free memory was 124.6 MB in the beginning and 120.7 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB.
[2020-10-29 11:39:45,626 INFO  L168              Benchmark]: RCFGBuilder took 1459.59 ms. Allocated memory was 151.0 MB in the beginning and 183.5 MB in the end (delta: 32.5 MB). Free memory was 120.7 MB in the beginning and 109.6 MB in the end (delta: 11.1 MB). Peak memory consumption was 44.7 MB. Max. memory is 8.0 GB.
[2020-10-29 11:39:45,627 INFO  L168              Benchmark]: TraceAbstraction took 22236.00 ms. Allocated memory was 183.5 MB in the beginning and 415.2 MB in the end (delta: 231.7 MB). Free memory was 109.6 MB in the beginning and 320.9 MB in the end (delta: -211.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB.
[2020-10-29 11:39:45,630 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.67 ms. Allocated memory is still 151.0 MB. Free memory is still 124.9 MB. There was no memory consumed. Max. memory is 8.0 GB.
 * CACSL2BoogieTranslator took 714.24 ms. Allocated memory is still 151.0 MB. Free memory was 106.9 MB in the beginning and 124.9 MB in the end (delta: -18.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB.
 * Boogie Preprocessor took 93.37 ms. Allocated memory is still 151.0 MB. Free memory was 124.6 MB in the beginning and 120.7 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB.
 * RCFGBuilder took 1459.59 ms. Allocated memory was 151.0 MB in the beginning and 183.5 MB in the end (delta: 32.5 MB). Free memory was 120.7 MB in the beginning and 109.6 MB in the end (delta: 11.1 MB). Peak memory consumption was 44.7 MB. Max. memory is 8.0 GB.
 * TraceAbstraction took 22236.00 ms. Allocated memory was 183.5 MB in the beginning and 415.2 MB in the end (delta: 231.7 MB). Free memory was 109.6 MB in the beginning and 320.9 MB in the end (delta: -211.3 MB). Peak memory consumption was 21.0 MB. 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: 
[L50]               int waterLevel  =    1;
[L51]               int methaneLevelCritical  =    0;
[L227]              int pumpRunning  =    0;
[L228]              int systemActive  =    1;
[L475]              int cleanupTimeShifts  =    4;
[L778]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L551]              int retValue_acc ;
[L552]              int tmp ;
[L556]  FCALL       select_helpers()
[L557]  FCALL       select_features()
[L558]  CALL, EXPR  valid_product()
[L600]              int retValue_acc ;
[L603]              retValue_acc = 1
[L604]              return (retValue_acc);
[L558]  RET, EXPR   valid_product()
[L558]              tmp = valid_product()
[L560]  COND TRUE   \read(tmp)
[L562]  FCALL       setup()
[L563]  CALL        runTest()
[L542]  CALL        test()
[L157]              int splverifierCounter ;
[L158]              int tmp ;
[L159]              int tmp___0 ;
[L160]              int tmp___1 ;
[L161]              int tmp___2 ;
[L164]              splverifierCounter = 0
[L166]  COND TRUE   1
[L168]  COND TRUE   splverifierCounter < 4
[L174]              tmp = __VERIFIER_nondet_int()
[L176]  COND TRUE   \read(tmp)
[L178]  CALL        waterRise()
[L68]   COND TRUE   waterLevel < 2
[L69]               waterLevel = waterLevel + 1
[L178]  RET         waterRise()
[L184]              tmp___0 = __VERIFIER_nondet_int()
[L186]  COND FALSE  !(\read(tmp___0))
[L194]              tmp___2 = __VERIFIER_nondet_int()
[L196]  COND FALSE  !(\read(tmp___2))
[L200]              tmp___1 = __VERIFIER_nondet_int()
[L202]  COND TRUE   \read(tmp___1)
[L204]  CALL        stopSystem()
[L428]  COND FALSE  !(\read(pumpRunning))
[L435]              systemActive = 0
[L204]  RET         stopSystem()
[L211]  CALL        timeShift()
[L235]  COND FALSE  !(\read(pumpRunning))
[L242]  COND FALSE  !(\read(systemActive))
[L250]  CALL        __utac_acc__Specification3_spec__1()
[L442]              int tmp ;
[L443]              int tmp___0 ;
[L444]              int tmp___1 ;
[L448]  CALL, EXPR  isMethaneLevelCritical()
[L89]               int retValue_acc ;
[L92]               retValue_acc = methaneLevelCritical
[L93]               return (retValue_acc);
[L448]  RET, EXPR   isMethaneLevelCritical()
[L448]              tmp = isMethaneLevelCritical()
[L450]  COND FALSE  !(\read(tmp))
[L454]  CALL, EXPR  getWaterLevel()
[L121]              int retValue_acc ;
[L124]              retValue_acc = waterLevel
[L125]              return (retValue_acc);
[L454]  RET, EXPR   getWaterLevel()
[L454]              tmp___0 = getWaterLevel()
[L456]  COND TRUE   tmp___0 == 2
[L458]  CALL, EXPR  isPumpRunning()
[L342]              int retValue_acc ;
[L345]              retValue_acc = pumpRunning
[L346]              return (retValue_acc);
[L458]  RET, EXPR   isPumpRunning()
[L458]              tmp___1 = isPumpRunning()
[L460]  COND FALSE  !(\read(tmp___1))
[L464]  CALL        __automaton_fail()
[L979]  CALL        reach_error()
[L3]                __assert_fail("0", "minepump_spec3_product51.cil.c", 3, "reach_error")

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 42 procedures, 256 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 22.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 14.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 296 SDtfs, 643 SDslu, 257 SDs, 0 SdLazy, 1457 SolverSat, 354 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=448occurred 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, 181 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 6.4s 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...