/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=SHALLOWEST --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_product14.cil.c


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


This is Ultimate 0.2.0-0f64333
[2020-10-27 03:34:55,660 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-10-27 03:34:55,664 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-10-27 03:34:55,734 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-10-27 03:34:55,735 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-10-27 03:34:55,740 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-10-27 03:34:55,743 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-10-27 03:34:55,750 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-10-27 03:34:55,753 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-10-27 03:34:55,759 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-10-27 03:34:55,761 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-10-27 03:34:55,763 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-10-27 03:34:55,763 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-10-27 03:34:55,767 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-10-27 03:34:55,769 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-10-27 03:34:55,771 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-10-27 03:34:55,772 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-10-27 03:34:55,775 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-10-27 03:34:55,782 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-10-27 03:34:55,784 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-10-27 03:34:55,786 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-10-27 03:34:55,787 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-10-27 03:34:55,789 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-10-27 03:34:55,790 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-10-27 03:34:55,809 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-10-27 03:34:55,809 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-10-27 03:34:55,809 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-10-27 03:34:55,811 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-10-27 03:34:55,814 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-10-27 03:34:55,815 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-10-27 03:34:55,816 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-10-27 03:34:55,817 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-10-27 03:34:55,818 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-10-27 03:34:55,819 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-10-27 03:34:55,821 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-10-27 03:34:55,821 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-10-27 03:34:55,822 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-10-27 03:34:55,822 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-10-27 03:34:55,823 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-10-27 03:34:55,824 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-10-27 03:34:55,824 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-10-27 03:34:55,832 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
[2020-10-27 03:34:55,882 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-10-27 03:34:55,882 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-10-27 03:34:55,886 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-10-27 03:34:55,887 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-10-27 03:34:55,887 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-10-27 03:34:55,887 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-10-27 03:34:55,887 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-10-27 03:34:55,888 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-10-27 03:34:55,888 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-10-27 03:34:55,888 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-10-27 03:34:55,889 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-10-27 03:34:55,890 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-10-27 03:34:55,890 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-10-27 03:34:55,890 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-10-27 03:34:55,890 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-10-27 03:34:55,890 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-10-27 03:34:55,891 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-10-27 03:34:55,891 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-10-27 03:34:55,891 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-10-27 03:34:55,891 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-10-27 03:34:55,891 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-10-27 03:34:55,892 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-10-27 03:34:55,892 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-10-27 03:34:55,892 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-10-27 03:34:55,892 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-10-27 03:34:55,893 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-10-27 03:34:55,893 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-10-27 03:34:55,893 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-10-27 03:34:55,893 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-10-27 03:34:55,894 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true;
[2020-10-27 03:34:56,302 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-10-27 03:34:56,349 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-10-27 03:34:56,353 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-10-27 03:34:56,354 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-10-27 03:34:56,355 INFO  L275        PluginConnector]: CDTParser initialized
[2020-10-27 03:34:56,357 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product14.cil.c
[2020-10-27 03:34:56,436 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c31e7684e/bdfd03b4455041d38b06186f60aefae2/FLAG50ee72a66
[2020-10-27 03:34:57,151 INFO  L306              CDTParser]: Found 1 translation units.
[2020-10-27 03:34:57,153 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product14.cil.c
[2020-10-27 03:34:57,170 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c31e7684e/bdfd03b4455041d38b06186f60aefae2/FLAG50ee72a66
[2020-10-27 03:34:57,475 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c31e7684e/bdfd03b4455041d38b06186f60aefae2
[2020-10-27 03:34:57,478 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-10-27 03:34:57,484 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-10-27 03:34:57,486 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-10-27 03:34:57,486 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-10-27 03:34:57,490 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-10-27 03:34:57,491 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:34:57" (1/1) ...
[2020-10-27 03:34:57,494 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@834b16b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:57, skipping insertion in model container
[2020-10-27 03:34:57,494 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:34:57" (1/1) ...
[2020-10-27 03:34:57,504 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-10-27 03:34:57,543 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-10-27 03:34:57,856 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-27 03:34:57,876 INFO  L203         MainTranslator]: Completed pre-run
[2020-10-27 03:34:58,038 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-27 03:34:58,093 INFO  L208         MainTranslator]: Completed translation
[2020-10-27 03:34:58,096 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:58 WrapperNode
[2020-10-27 03:34:58,096 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-10-27 03:34:58,097 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-10-27 03:34:58,098 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-10-27 03:34:58,098 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-10-27 03:34:58,118 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:58" (1/1) ...
[2020-10-27 03:34:58,120 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:58" (1/1) ...
[2020-10-27 03:34:58,163 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:58" (1/1) ...
[2020-10-27 03:34:58,166 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:58" (1/1) ...
[2020-10-27 03:34:58,220 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:58" (1/1) ...
[2020-10-27 03:34:58,229 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:58" (1/1) ...
[2020-10-27 03:34:58,234 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:58" (1/1) ...
[2020-10-27 03:34:58,267 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-10-27 03:34:58,268 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-10-27 03:34:58,269 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-10-27 03:34:58,269 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-10-27 03:34:58,270 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:58" (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
[2020-10-27 03:34:58,349 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-10-27 03:34:58,349 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-10-27 03:34:58,350 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-10-27 03:34:58,350 INFO  L138     BoogieDeclarations]: Found implementation of procedure reach_error
[2020-10-27 03:34:58,350 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-10-27 03:34:58,350 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-10-27 03:34:58,350 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-10-27 03:34:58,350 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-10-27 03:34:58,351 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-10-27 03:34:58,351 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-10-27 03:34:58,351 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-10-27 03:34:58,351 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery
[2020-10-27 03:34:58,351 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-10-27 03:34:58,351 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base
[2020-10-27 03:34:58,352 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-10-27 03:34:58,352 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-10-27 03:34:58,352 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-10-27 03:34:58,352 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-10-27 03:34:58,352 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-10-27 03:34:58,352 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-10-27 03:34:58,352 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-10-27 03:34:58,353 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-10-27 03:34:58,353 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-10-27 03:34:58,353 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-10-27 03:34:58,353 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-10-27 03:34:58,353 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-10-27 03:34:58,353 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-10-27 03:34:58,353 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-10-27 03:34:58,353 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-10-27 03:34:58,354 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-10-27 03:34:58,354 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-10-27 03:34:58,354 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-10-27 03:34:58,354 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-10-27 03:34:58,354 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-10-27 03:34:58,354 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-10-27 03:34:58,354 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-10-27 03:34:58,355 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-10-27 03:34:58,355 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-10-27 03:34:58,355 INFO  L130     BoogieDeclarations]: Found specification of procedure abort
[2020-10-27 03:34:58,355 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-10-27 03:34:58,355 INFO  L130     BoogieDeclarations]: Found specification of procedure reach_error
[2020-10-27 03:34:58,355 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-10-27 03:34:58,355 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-10-27 03:34:58,355 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-10-27 03:34:58,356 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-10-27 03:34:58,356 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-10-27 03:34:58,356 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-10-27 03:34:58,356 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-10-27 03:34:58,356 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-10-27 03:34:58,356 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-10-27 03:34:58,356 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-10-27 03:34:58,357 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-10-27 03:34:58,357 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-10-27 03:34:58,357 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-10-27 03:34:58,357 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-10-27 03:34:58,357 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-10-27 03:34:58,357 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-10-27 03:34:58,357 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-10-27 03:34:58,358 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-10-27 03:34:58,358 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-10-27 03:34:58,358 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-10-27 03:34:58,358 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery
[2020-10-27 03:34:58,358 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-10-27 03:34:58,358 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base
[2020-10-27 03:34:58,358 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-10-27 03:34:58,359 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-10-27 03:34:58,359 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-10-27 03:34:58,359 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-10-27 03:34:58,359 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-10-27 03:34:58,359 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-10-27 03:34:58,359 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-10-27 03:34:58,359 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-10-27 03:34:58,360 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-10-27 03:34:58,360 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-10-27 03:34:58,360 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-10-27 03:34:58,360 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-10-27 03:34:58,360 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-10-27 03:34:58,360 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-10-27 03:34:58,360 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-10-27 03:34:58,361 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-10-27 03:34:58,361 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-10-27 03:34:58,361 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-10-27 03:34:58,361 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-10-27 03:34:58,361 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-10-27 03:34:58,361 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-10-27 03:34:58,361 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-10-27 03:34:58,362 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-10-27 03:34:58,362 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-10-27 03:34:58,362 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-10-27 03:34:58,362 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-10-27 03:34:59,645 INFO  L293             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-10-27 03:34:59,646 INFO  L298             CfgBuilder]: Removed 5 assume(true) statements.
[2020-10-27 03:34:59,648 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:34:59 BoogieIcfgContainer
[2020-10-27 03:34:59,648 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-10-27 03:34:59,650 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-10-27 03:34:59,650 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-10-27 03:34:59,654 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-10-27 03:34:59,655 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:34:57" (1/3) ...
[2020-10-27 03:34:59,656 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@603c088f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:34:59, skipping insertion in model container
[2020-10-27 03:34:59,656 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:58" (2/3) ...
[2020-10-27 03:34:59,656 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@603c088f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:34:59, skipping insertion in model container
[2020-10-27 03:34:59,656 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:34:59" (3/3) ...
[2020-10-27 03:34:59,658 INFO  L111   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product14.cil.c
[2020-10-27 03:34:59,671 INFO  L164   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-10-27 03:34:59,677 INFO  L176   ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations.
[2020-10-27 03:34:59,695 INFO  L253      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2020-10-27 03:34:59,729 INFO  L377      AbstractCegarLoop]: Interprodecural is true
[2020-10-27 03:34:59,729 INFO  L378      AbstractCegarLoop]: Hoare is true
[2020-10-27 03:34:59,729 INFO  L379      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-10-27 03:34:59,729 INFO  L380      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-10-27 03:34:59,730 INFO  L381      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-10-27 03:34:59,730 INFO  L382      AbstractCegarLoop]: Difference is false
[2020-10-27 03:34:59,730 INFO  L383      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-10-27 03:34:59,730 INFO  L387      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-10-27 03:34:59,760 INFO  L276                IsEmpty]: Start isEmpty. Operand 164 states.
[2020-10-27 03:34:59,772 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 54
[2020-10-27 03:34:59,772 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-27 03:34:59,773 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]
[2020-10-27 03:34:59,787 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]===
[2020-10-27 03:34:59,802 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-27 03:34:59,802 INFO  L82        PathProgramCache]: Analyzing trace with hash -1491265298, now seen corresponding path program 1 times
[2020-10-27 03:34:59,832 INFO  L162   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-27 03:34:59,833 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [823054232]
[2020-10-27 03:34:59,833 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-27 03:35:00,130 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:35:00,205 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:35:00,391 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:35:01,272 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:35:03,359 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:35:03,360 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 87
[2020-10-27 03:35:03,360 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-10-27 03:35:03,360 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3224
[2020-10-27 03:35:03,363 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:35:03,363 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-10-27 03:35:03,363 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-27 03:35:03,364 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 47
[2020-10-27 03:35:03,364 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-10-27 03:35:04,083 WARN  L193               SmtUtils]: Spent 626.00 ms on a formula simplification that was a NOOP. DAG size: 202
[2020-10-27 03:35:04,084 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-27 03:35:04,125 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:35:04,146 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:35:04,245 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:35:04,246 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:35:04,246 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:35:04,246 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 119
[2020-10-27 03:35:04,246 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:35:04,247 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:35:04,247 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:35:04,247 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-10-27 03:35:04,247 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:35:04,278 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-10-27 03:35:04,280 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:35:04,281 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:35:04,283 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:35:04,284 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-27 03:35:04,284 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:35:04,284 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-27 03:35:04,284 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:35:04,285 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:35:04,285 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:35:04,285 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-27 03:35:04,285 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:35:04,288 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-10-27 03:35:04,289 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:35:04,291 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:35:04,292 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:35:04,293 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-27 03:35:04,293 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:35:04,293 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-27 03:35:04,293 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:35:04,294 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:35:04,294 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:35:04,294 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-27 03:35:04,294 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:35:04,296 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-10-27 03:35:04,298 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:35:04,299 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:35:04,302 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:35:04,302 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:35:04,302 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:35:04,303 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-27 03:35:04,303 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:35:04,303 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:35:04,303 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:35:04,304 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-27 03:35:04,304 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:35:04,306 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-10-27 03:35:04,308 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:35:04,309 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:35:04,311 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:35:04,311 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-27 03:35:04,311 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:35:04,311 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-27 03:35:04,312 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:35:04,312 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:35:04,312 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:35:04,312 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-27 03:35:04,312 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:35:04,314 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2020-10-27 03:35:04,315 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:35:04,317 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:35:04,319 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:35:04,319 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:35:04,319 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:35:04,319 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-27 03:35:04,320 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:35:04,320 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-27 03:35:04,320 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-27 03:35:04,320 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-27 03:35:04,320 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:35:04,322 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2020-10-27 03:35:04,324 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:35:04,326 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:35:04,327 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:35:04,327 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:35:04,328 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:35:04,328 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-27 03:35:04,328 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:35:04,328 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-27 03:35:04,328 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-27 03:35:04,329 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-27 03:35:04,329 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:35:04,331 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44
[2020-10-27 03:35:04,332 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:35:04,333 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:35:04,335 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:35:04,335 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:35:04,335 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:35:04,336 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-27 03:35:04,336 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:35:04,336 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-27 03:35:04,336 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-27 03:35:04,336 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-27 03:35:04,337 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:35:04,352 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-27 03:35:04,353 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [823054232]
[2020-10-27 03:35:04,355 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-27 03:35:04,355 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-10-27 03:35:04,356 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581379523]
[2020-10-27 03:35:04,361 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-10-27 03:35:04,362 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-27 03:35:04,376 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-10-27 03:35:04,377 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-10-27 03:35:04,379 INFO  L87              Difference]: Start difference. First operand 164 states. Second operand 4 states.
[2020-10-27 03:35:05,248 WARN  L193               SmtUtils]: Spent 664.00 ms on a formula simplification that was a NOOP. DAG size: 204
[2020-10-27 03:35:06,896 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-27 03:35:06,897 INFO  L93              Difference]: Finished difference Result 263 states and 347 transitions.
[2020-10-27 03:35:06,898 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-10-27 03:35:06,899 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 53
[2020-10-27 03:35:06,900 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-27 03:35:06,913 INFO  L225             Difference]: With dead ends: 263
[2020-10-27 03:35:06,914 INFO  L226             Difference]: Without dead ends: 141
[2020-10-27 03:35:06,919 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-10-27 03:35:06,940 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 141 states.
[2020-10-27 03:35:07,025 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 110.
[2020-10-27 03:35:07,026 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 110 states.
[2020-10-27 03:35:07,033 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 127 transitions.
[2020-10-27 03:35:07,036 INFO  L78                 Accepts]: Start accepts. Automaton has 110 states and 127 transitions. Word has length 53
[2020-10-27 03:35:07,036 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-27 03:35:07,037 INFO  L481      AbstractCegarLoop]: Abstraction has 110 states and 127 transitions.
[2020-10-27 03:35:07,041 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-10-27 03:35:07,041 INFO  L276                IsEmpty]: Start isEmpty. Operand 110 states and 127 transitions.
[2020-10-27 03:35:07,054 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 68
[2020-10-27 03:35:07,054 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-27 03:35:07,055 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]
[2020-10-27 03:35:07,057 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-10-27 03:35:07,057 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]===
[2020-10-27 03:35:07,058 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-27 03:35:07,058 INFO  L82        PathProgramCache]: Analyzing trace with hash -1392222618, now seen corresponding path program 1 times
[2020-10-27 03:35:07,059 INFO  L162   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-27 03:35:07,059 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2126577353]
[2020-10-27 03:35:07,059 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-27 03:35:07,114 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:35:07,141 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:35:08,260 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:35:08,261 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 103
[2020-10-27 03:35:08,261 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:35:08,261 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1144
[2020-10-27 03:35:08,261 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:35:08,261 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 13
[2020-10-27 03:35:08,262 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-27 03:35:08,262 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 83
[2020-10-27 03:35:08,262 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:35:08,794 WARN  L193               SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 202
[2020-10-27 03:35:08,796 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-27 03:35:08,844 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:35:08,874 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:35:09,004 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:35:09,004 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:35:09,005 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:35:09,005 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 156
[2020-10-27 03:35:09,005 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:35:09,005 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:35:09,006 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:35:09,006 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-10-27 03:35:09,006 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:35:09,026 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-10-27 03:35:09,028 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:35:09,029 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:35:09,032 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:35:09,032 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-27 03:35:09,032 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:35:09,032 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-27 03:35:09,033 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:35:09,034 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:35:09,035 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:35:09,035 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-27 03:35:09,035 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-10-27 03:35:09,037 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-10-27 03:35:09,039 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:35:09,040 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:35:09,046 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:35:09,047 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-27 03:35:09,047 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:35:09,047 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-10-27 03:35:09,047 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:35:09,048 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:35:09,048 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:35:09,048 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-27 03:35:09,048 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:35:09,050 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-10-27 03:35:09,055 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:35:09,056 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:35:09,058 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:35:09,059 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:35:09,059 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:35:09,059 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-27 03:35:09,059 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:35:09,059 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:35:09,060 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:35:09,060 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-27 03:35:09,060 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:35:09,066 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-10-27 03:35:09,068 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:35:09,069 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:35:09,072 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:35:09,072 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-27 03:35:09,072 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:35:09,073 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-27 03:35:09,073 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:35:09,073 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:35:09,073 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:35:09,073 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-27 03:35:09,073 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:35:09,093 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36
[2020-10-27 03:35:09,096 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:35:09,101 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:35:09,104 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:35:09,105 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-10-27 03:35:09,105 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:35:09,105 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-10-27 03:35:09,106 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:35:09,106 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:35:09,106 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:35:09,107 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 11
[2020-10-27 03:35:09,107 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-27 03:35:09,109 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-27 03:35:09,110 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:35:09,111 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:35:09,112 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:35:09,112 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-27 03:35:09,113 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:35:09,113 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-27 03:35:09,113 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:35:09,113 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-27 03:35:09,113 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:35:09,113 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-27 03:35:09,114 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:35:09,115 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46
[2020-10-27 03:35:09,116 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:35:09,117 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:35:09,119 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:35:09,119 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:35:09,120 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:35:09,120 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-27 03:35:09,120 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:35:09,120 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:35:09,120 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:35:09,121 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-27 03:35:09,121 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:35:09,122 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52
[2020-10-27 03:35:09,124 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:35:09,126 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:35:09,138 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:35:09,139 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:35:09,139 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:35:09,140 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 13
[2020-10-27 03:35:09,144 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:35:09,144 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-10-27 03:35:09,144 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:35:09,145 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-27 03:35:09,145 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-27 03:35:09,193 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58
[2020-10-27 03:35:09,194 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:35:09,196 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:35:09,197 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:35:09,197 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:35:09,198 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:35:09,198 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-27 03:35:09,199 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:35:09,199 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-27 03:35:09,199 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-27 03:35:09,199 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-27 03:35:09,200 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:35:09,227 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-27 03:35:09,228 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2126577353]
[2020-10-27 03:35:09,228 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-27 03:35:09,228 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-10-27 03:35:09,230 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603971895]
[2020-10-27 03:35:09,233 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-10-27 03:35:09,234 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-27 03:35:09,235 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-10-27 03:35:09,235 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2020-10-27 03:35:09,235 INFO  L87              Difference]: Start difference. First operand 110 states and 127 transitions. Second operand 8 states.
[2020-10-27 03:35:09,894 WARN  L193               SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 204
[2020-10-27 03:35:12,048 WARN  L193               SmtUtils]: Spent 718.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 206
[2020-10-27 03:35:12,568 WARN  L193               SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 208
[2020-10-27 03:35:12,961 WARN  L193               SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 208
[2020-10-27 03:35:13,622 WARN  L193               SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 207
[2020-10-27 03:35:14,096 WARN  L193               SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 206
[2020-10-27 03:35:15,100 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-27 03:35:15,101 INFO  L93              Difference]: Finished difference Result 353 states and 483 transitions.
[2020-10-27 03:35:15,101 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2020-10-27 03:35:15,102 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 67
[2020-10-27 03:35:15,102 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-27 03:35:15,107 INFO  L225             Difference]: With dead ends: 353
[2020-10-27 03:35:15,107 INFO  L226             Difference]: Without dead ends: 267
[2020-10-27 03:35:15,109 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240
[2020-10-27 03:35:15,110 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 267 states.
[2020-10-27 03:35:15,224 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 193.
[2020-10-27 03:35:15,224 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 193 states.
[2020-10-27 03:35:15,227 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 233 transitions.
[2020-10-27 03:35:15,227 INFO  L78                 Accepts]: Start accepts. Automaton has 193 states and 233 transitions. Word has length 67
[2020-10-27 03:35:15,228 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-27 03:35:15,228 INFO  L481      AbstractCegarLoop]: Abstraction has 193 states and 233 transitions.
[2020-10-27 03:35:15,228 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-10-27 03:35:15,228 INFO  L276                IsEmpty]: Start isEmpty. Operand 193 states and 233 transitions.
[2020-10-27 03:35:15,231 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 72
[2020-10-27 03:35:15,231 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-27 03:35:15,231 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, 1, 1, 1]
[2020-10-27 03:35:15,231 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-10-27 03:35:15,231 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]===
[2020-10-27 03:35:15,232 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-27 03:35:15,232 INFO  L82        PathProgramCache]: Analyzing trace with hash 1904308748, now seen corresponding path program 1 times
[2020-10-27 03:35:15,232 INFO  L162   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-27 03:35:15,233 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [3731872]
[2020-10-27 03:35:15,233 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-27 03:35:15,285 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-10-27 03:35:15,289 INFO  L173   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-10-27 03:35:15,289 INFO  L523         BasicCegarLoop]: Counterexample might be feasible
[2020-10-27 03:35:15,294 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-10-27 03:35:15,317 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:35:15 BoogieIcfgContainer
[2020-10-27 03:35:15,318 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-10-27 03:35:15,320 INFO  L168              Benchmark]: Toolchain (without parser) took 17839.51 ms. Allocated memory was 151.0 MB in the beginning and 276.8 MB in the end (delta: 125.8 MB). Free memory was 125.4 MB in the beginning and 230.4 MB in the end (delta: -104.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 8.0 GB.
[2020-10-27 03:35:15,320 INFO  L168              Benchmark]: CDTParser took 0.56 ms. Allocated memory is still 151.0 MB. Free memory is still 124.2 MB. There was no memory consumed. Max. memory is 8.0 GB.
[2020-10-27 03:35:15,321 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 610.78 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 104.5 MB in the end (delta: 20.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB.
[2020-10-27 03:35:15,322 INFO  L168              Benchmark]: Boogie Preprocessor took 170.28 ms. Allocated memory is still 151.0 MB. Free memory was 104.3 MB in the beginning and 133.0 MB in the end (delta: -28.7 MB). Peak memory consumption was 7.9 MB. Max. memory is 8.0 GB.
[2020-10-27 03:35:15,323 INFO  L168              Benchmark]: RCFGBuilder took 1379.79 ms. Allocated memory is still 151.0 MB. Free memory was 133.0 MB in the beginning and 130.2 MB in the end (delta: 2.8 MB). Peak memory consumption was 88.1 MB. Max. memory is 8.0 GB.
[2020-10-27 03:35:15,324 INFO  L168              Benchmark]: TraceAbstraction took 15667.41 ms. Allocated memory was 151.0 MB in the beginning and 276.8 MB in the end (delta: 125.8 MB). Free memory was 129.6 MB in the beginning and 230.4 MB in the end (delta: -100.7 MB). Peak memory consumption was 25.1 MB. Max. memory is 8.0 GB.
[2020-10-27 03:35:15,328 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 151.0 MB. Free memory is still 124.2 MB. There was no memory consumed. Max. memory is 8.0 GB.
 * CACSL2BoogieTranslator took 610.78 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 104.5 MB in the end (delta: 20.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB.
 * Boogie Preprocessor took 170.28 ms. Allocated memory is still 151.0 MB. Free memory was 104.3 MB in the beginning and 133.0 MB in the end (delta: -28.7 MB). Peak memory consumption was 7.9 MB. Max. memory is 8.0 GB.
 * RCFGBuilder took 1379.79 ms. Allocated memory is still 151.0 MB. Free memory was 133.0 MB in the beginning and 130.2 MB in the end (delta: 2.8 MB). Peak memory consumption was 88.1 MB. Max. memory is 8.0 GB.
 * TraceAbstraction took 15667.41 ms. Allocated memory was 151.0 MB in the beginning and 276.8 MB in the end (delta: 125.8 MB). Free memory was 129.6 MB in the beginning and 230.4 MB in the end (delta: -100.7 MB). Peak memory consumption was 25.1 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: 
[L133]              int pumpRunning  =    0;
[L134]              int systemActive  =    1;
[L460]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L727]              int cleanupTimeShifts  =    4;
[L823]              int waterLevel  =    1;
[L824]              int methaneLevelCritical  =    0;
[L800]              int retValue_acc ;
[L801]              int tmp ;
[L805]  FCALL       select_helpers()
[L806]  FCALL       select_features()
[L807]  CALL, EXPR  valid_product()
[L80]               int retValue_acc ;
[L83]               retValue_acc = 1
[L84]               return (retValue_acc);
[L807]  RET, EXPR   valid_product()
[L807]              tmp = valid_product()
[L809]  COND TRUE   \read(tmp)
[L811]  FCALL       setup()
[L812]  CALL        runTest()
[L794]  CALL        test()
[L661]              int splverifierCounter ;
[L662]              int tmp ;
[L663]              int tmp___0 ;
[L664]              int tmp___1 ;
[L665]              int tmp___2 ;
[L668]              splverifierCounter = 0
[L670]  COND TRUE   1
[L672]  COND TRUE   splverifierCounter < 4
[L678]              tmp = __VERIFIER_nondet_int()
[L680]  COND TRUE   \read(tmp)
[L682]  CALL        waterRise()
[L841]  COND TRUE   waterLevel < 2
[L842]              waterLevel = waterLevel + 1
[L682]  RET         waterRise()
[L688]              tmp___0 = __VERIFIER_nondet_int()
[L690]  COND FALSE  !(\read(tmp___0))
[L698]              tmp___2 = __VERIFIER_nondet_int()
[L700]  COND FALSE  !(\read(tmp___2))
[L706]              tmp___1 = __VERIFIER_nondet_int()
[L708]  COND TRUE   \read(tmp___1)
[L715]  CALL        timeShift()
[L140]  COND FALSE  !(\read(pumpRunning))
[L147]  COND TRUE   \read(systemActive)
[L149]  CALL        processEnvironment()
[L169]              int tmp ;
[L172]  COND FALSE  !(\read(pumpRunning))
[L187]  FCALL       processEnvironment__wrappee__methaneQuery()
[L149]  RET         processEnvironment()
[L155]  CALL        __utac_acc__Specification3_spec__1()
[L93]               int tmp ;
[L94]               int tmp___0 ;
[L95]               int tmp___1 ;
[L99]   CALL, EXPR  isMethaneLevelCritical()
[L862]              int retValue_acc ;
[L865]              retValue_acc = methaneLevelCritical
[L866]              return (retValue_acc);
[L99]   RET, EXPR   isMethaneLevelCritical()
[L99]               tmp = isMethaneLevelCritical()
[L101]  COND FALSE  !(\read(tmp))
[L105]  CALL, EXPR  getWaterLevel()
[L894]              int retValue_acc ;
[L897]              retValue_acc = waterLevel
[L898]              return (retValue_acc);
[L105]  RET, EXPR   getWaterLevel()
[L105]              tmp___0 = getWaterLevel()
[L107]  COND TRUE   tmp___0 == 2
[L109]  CALL, EXPR  isPumpRunning()
[L238]              int retValue_acc ;
[L241]              retValue_acc = pumpRunning
[L242]              return (retValue_acc);
[L109]  RET, EXPR   isPumpRunning()
[L109]              tmp___1 = isPumpRunning()
[L111]  COND FALSE  !(\read(tmp___1))
[L115]  CALL        __automaton_fail()
[L46]   CALL        reach_error()
[L3]                __assert_fail("0", "minepump_spec3_product14.cil.c", 3, "reach_error")

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 38 procedures, 230 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 15.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 8.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 209 SDtfs, 406 SDslu, 181 SDs, 0 SdLazy, 838 SolverSat, 255 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=193occurred 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: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 105 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 6.2s InterpolantComputationTime, 191 NumberOfCodeBlocks, 191 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 118 ConstructedInterpolants, 0 QuantifiedInterpolants, 38298 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...