/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_product06.cil.c


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


This is Ultimate 0.2.0-0f64333
[2020-10-27 03:34:12,979 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-10-27 03:34:12,984 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-10-27 03:34:13,043 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-10-27 03:34:13,044 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-10-27 03:34:13,051 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-10-27 03:34:13,053 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-10-27 03:34:13,059 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-10-27 03:34:13,062 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-10-27 03:34:13,068 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-10-27 03:34:13,070 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-10-27 03:34:13,071 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-10-27 03:34:13,072 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-10-27 03:34:13,075 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-10-27 03:34:13,078 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-10-27 03:34:13,081 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-10-27 03:34:13,083 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-10-27 03:34:13,086 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-10-27 03:34:13,093 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-10-27 03:34:13,102 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-10-27 03:34:13,104 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-10-27 03:34:13,106 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-10-27 03:34:13,107 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-10-27 03:34:13,110 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-10-27 03:34:13,141 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-10-27 03:34:13,142 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-10-27 03:34:13,142 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-10-27 03:34:13,145 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-10-27 03:34:13,145 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-10-27 03:34:13,146 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-10-27 03:34:13,147 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-10-27 03:34:13,148 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-10-27 03:34:13,150 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-10-27 03:34:13,150 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-10-27 03:34:13,152 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-10-27 03:34:13,152 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-10-27 03:34:13,153 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-10-27 03:34:13,153 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-10-27 03:34:13,153 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-10-27 03:34:13,154 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-10-27 03:34:13,155 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-10-27 03:34:13,162 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 03:34:13,212 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-10-27 03:34:13,212 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-10-27 03:34:13,218 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-10-27 03:34:13,218 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-10-27 03:34:13,218 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-10-27 03:34:13,219 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-10-27 03:34:13,219 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-10-27 03:34:13,219 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-10-27 03:34:13,219 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-10-27 03:34:13,220 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-10-27 03:34:13,221 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-10-27 03:34:13,221 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-10-27 03:34:13,222 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-10-27 03:34:13,222 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-10-27 03:34:13,222 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-10-27 03:34:13,222 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-10-27 03:34:13,223 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-10-27 03:34:13,223 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-10-27 03:34:13,223 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-10-27 03:34:13,223 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-10-27 03:34:13,224 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-10-27 03:34:13,224 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-10-27 03:34:13,224 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-10-27 03:34:13,224 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-10-27 03:34:13,225 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-10-27 03:34:13,225 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-10-27 03:34:13,225 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-10-27 03:34:13,225 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-10-27 03:34:13,226 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-10-27 03:34:13,226 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true;
[2020-10-27 03:34:13,664 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-10-27 03:34:13,710 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-10-27 03:34:13,713 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-10-27 03:34:13,715 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-10-27 03:34:13,715 INFO  L275        PluginConnector]: CDTParser initialized
[2020-10-27 03:34:13,716 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product06.cil.c
[2020-10-27 03:34:13,799 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/900342edc/bcb72496fc0d4606b1a5df34c62e3e58/FLAGc5b8d7a91
[2020-10-27 03:34:14,466 INFO  L306              CDTParser]: Found 1 translation units.
[2020-10-27 03:34:14,466 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product06.cil.c
[2020-10-27 03:34:14,487 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/900342edc/bcb72496fc0d4606b1a5df34c62e3e58/FLAGc5b8d7a91
[2020-10-27 03:34:14,781 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/900342edc/bcb72496fc0d4606b1a5df34c62e3e58
[2020-10-27 03:34:14,784 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-10-27 03:34:14,791 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-10-27 03:34:14,793 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-10-27 03:34:14,793 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-10-27 03:34:14,799 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-10-27 03:34:14,800 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:34:14" (1/1) ...
[2020-10-27 03:34:14,804 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69b17e8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:14, skipping insertion in model container
[2020-10-27 03:34:14,804 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:34:14" (1/1) ...
[2020-10-27 03:34:14,813 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-10-27 03:34:14,852 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-10-27 03:34:15,143 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-27 03:34:15,155 INFO  L203         MainTranslator]: Completed pre-run
[2020-10-27 03:34:15,242 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-27 03:34:15,283 INFO  L208         MainTranslator]: Completed translation
[2020-10-27 03:34:15,283 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:15 WrapperNode
[2020-10-27 03:34:15,284 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-10-27 03:34:15,285 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-10-27 03:34:15,285 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-10-27 03:34:15,285 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-10-27 03:34:15,301 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:15" (1/1) ...
[2020-10-27 03:34:15,302 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:15" (1/1) ...
[2020-10-27 03:34:15,321 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:15" (1/1) ...
[2020-10-27 03:34:15,321 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:15" (1/1) ...
[2020-10-27 03:34:15,356 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:15" (1/1) ...
[2020-10-27 03:34:15,375 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:15" (1/1) ...
[2020-10-27 03:34:15,386 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:15" (1/1) ...
[2020-10-27 03:34:15,405 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-10-27 03:34:15,406 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-10-27 03:34:15,406 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-10-27 03:34:15,406 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-10-27 03:34:15,411 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:15" (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 03:34:15,563 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-10-27 03:34:15,563 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-10-27 03:34:15,564 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-10-27 03:34:15,564 INFO  L138     BoogieDeclarations]: Found implementation of procedure reach_error
[2020-10-27 03:34:15,564 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-10-27 03:34:15,565 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-10-27 03:34:15,565 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-10-27 03:34:15,566 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-10-27 03:34:15,566 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-10-27 03:34:15,566 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-10-27 03:34:15,567 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-10-27 03:34:15,567 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-10-27 03:34:15,567 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-10-27 03:34:15,568 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-10-27 03:34:15,568 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-10-27 03:34:15,569 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-10-27 03:34:15,569 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-10-27 03:34:15,569 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-10-27 03:34:15,570 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-10-27 03:34:15,570 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-10-27 03:34:15,570 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-10-27 03:34:15,570 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-10-27 03:34:15,571 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-10-27 03:34:15,571 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-10-27 03:34:15,571 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-10-27 03:34:15,571 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-10-27 03:34:15,571 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-10-27 03:34:15,572 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-10-27 03:34:15,572 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-10-27 03:34:15,572 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-10-27 03:34:15,572 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-10-27 03:34:15,572 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-10-27 03:34:15,573 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-10-27 03:34:15,573 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-10-27 03:34:15,573 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-10-27 03:34:15,573 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-10-27 03:34:15,573 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-10-27 03:34:15,574 INFO  L130     BoogieDeclarations]: Found specification of procedure abort
[2020-10-27 03:34:15,574 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-10-27 03:34:15,574 INFO  L130     BoogieDeclarations]: Found specification of procedure reach_error
[2020-10-27 03:34:15,574 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-10-27 03:34:15,574 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-10-27 03:34:15,574 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-10-27 03:34:15,575 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-10-27 03:34:15,575 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-10-27 03:34:15,575 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-10-27 03:34:15,575 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-10-27 03:34:15,575 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-10-27 03:34:15,575 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-10-27 03:34:15,576 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-10-27 03:34:15,576 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-10-27 03:34:15,576 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-10-27 03:34:15,576 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-10-27 03:34:15,577 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-10-27 03:34:15,577 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-10-27 03:34:15,577 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-10-27 03:34:15,578 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-10-27 03:34:15,578 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-10-27 03:34:15,578 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-10-27 03:34:15,578 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-10-27 03:34:15,579 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-10-27 03:34:15,579 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-10-27 03:34:15,579 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-10-27 03:34:15,579 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-10-27 03:34:15,579 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-10-27 03:34:15,580 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-10-27 03:34:15,580 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-10-27 03:34:15,580 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-10-27 03:34:15,580 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-10-27 03:34:15,580 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-10-27 03:34:15,581 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-10-27 03:34:15,581 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-10-27 03:34:15,583 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-10-27 03:34:15,583 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-10-27 03:34:15,583 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-10-27 03:34:15,583 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-10-27 03:34:15,584 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-10-27 03:34:15,584 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-10-27 03:34:15,584 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-10-27 03:34:15,584 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-10-27 03:34:15,584 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-10-27 03:34:15,585 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-10-27 03:34:15,586 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-10-27 03:34:15,586 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-10-27 03:34:15,586 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-10-27 03:34:15,586 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-10-27 03:34:15,587 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-10-27 03:34:15,587 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-10-27 03:34:17,091 INFO  L293             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-10-27 03:34:17,092 INFO  L298             CfgBuilder]: Removed 5 assume(true) statements.
[2020-10-27 03:34:17,094 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:34:17 BoogieIcfgContainer
[2020-10-27 03:34:17,094 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-10-27 03:34:17,096 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-10-27 03:34:17,097 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-10-27 03:34:17,100 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-10-27 03:34:17,101 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:34:14" (1/3) ...
[2020-10-27 03:34:17,102 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6329fb21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:34:17, skipping insertion in model container
[2020-10-27 03:34:17,102 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:34:15" (2/3) ...
[2020-10-27 03:34:17,102 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6329fb21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:34:17, skipping insertion in model container
[2020-10-27 03:34:17,102 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:34:17" (3/3) ...
[2020-10-27 03:34:17,104 INFO  L111   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product06.cil.c
[2020-10-27 03:34:17,117 INFO  L164   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-10-27 03:34:17,123 INFO  L176   ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations.
[2020-10-27 03:34:17,138 INFO  L253      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2020-10-27 03:34:17,168 INFO  L377      AbstractCegarLoop]: Interprodecural is true
[2020-10-27 03:34:17,168 INFO  L378      AbstractCegarLoop]: Hoare is true
[2020-10-27 03:34:17,168 INFO  L379      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-10-27 03:34:17,168 INFO  L380      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-10-27 03:34:17,168 INFO  L381      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-10-27 03:34:17,169 INFO  L382      AbstractCegarLoop]: Difference is false
[2020-10-27 03:34:17,169 INFO  L383      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-10-27 03:34:17,169 INFO  L387      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-10-27 03:34:17,192 INFO  L276                IsEmpty]: Start isEmpty. Operand 156 states.
[2020-10-27 03:34:17,203 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 54
[2020-10-27 03:34:17,203 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-27 03:34:17,204 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 03:34:17,205 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 03:34:17,211 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-27 03:34:17,212 INFO  L82        PathProgramCache]: Analyzing trace with hash 2112070790, now seen corresponding path program 1 times
[2020-10-27 03:34:17,222 INFO  L162   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-27 03:34:17,222 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [977306461]
[2020-10-27 03:34:17,223 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-27 03:34:17,550 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:34:17,656 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:34:17,763 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:34:18,572 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:34:20,515 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:34:20,515 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 87
[2020-10-27 03:34:20,516 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-10-27 03:34:20,516 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2960
[2020-10-27 03:34:20,519 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:34:20,520 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-10-27 03:34:20,523 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-27 03:34:20,523 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 47
[2020-10-27 03:34:20,524 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 6
[2020-10-27 03:34:21,083 WARN  L193               SmtUtils]: Spent 446.00 ms on a formula simplification that was a NOOP. DAG size: 202
[2020-10-27 03:34:21,087 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-27 03:34:21,125 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:34:21,148 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:34:21,239 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:34:21,240 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:34:21,240 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:34:21,240 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 113
[2020-10-27 03:34:21,248 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:34:21,248 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:34:21,248 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:34:21,249 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-10-27 03:34:21,249 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-27 03:34:21,279 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-10-27 03:34:21,285 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:34:21,287 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:34:21,289 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:34:21,289 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-27 03:34:21,290 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:34:21,290 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-27 03:34:21,290 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:34:21,290 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:34:21,291 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:34:21,291 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-27 03:34:21,291 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:34:21,293 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-10-27 03:34:21,298 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:34:21,299 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:34:21,301 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:34:21,301 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-27 03:34:21,302 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:34:21,302 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-27 03:34:21,302 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:34:21,302 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:34:21,303 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:34:21,303 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-27 03:34:21,303 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:34:21,306 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-10-27 03:34:21,310 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:34:21,311 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:34:21,316 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:34:21,316 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:34:21,316 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:34:21,317 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-10-27 03:34:21,317 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:34:21,317 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:34:21,317 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:34:21,317 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-27 03:34:21,318 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:34:21,320 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-10-27 03:34:21,331 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:34:21,332 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:34:21,337 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:34:21,338 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-27 03:34:21,338 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:34:21,338 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-10-27 03:34:21,338 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:34:21,339 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:34:21,339 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:34:21,339 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-27 03:34:21,339 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:34:21,343 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2020-10-27 03:34:21,347 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:34:21,349 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:34:21,350 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:34:21,350 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:34:21,350 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:34:21,351 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-27 03:34:21,351 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:34:21,351 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-27 03:34:21,351 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-27 03:34:21,352 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-27 03:34:21,352 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:34:21,354 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2020-10-27 03:34:21,356 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:34:21,357 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:34:21,358 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:34:21,358 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:34:21,359 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:34:21,359 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-27 03:34:21,359 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:34:21,359 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-27 03:34:21,359 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-27 03:34:21,360 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-27 03:34:21,360 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:34:21,362 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44
[2020-10-27 03:34:21,364 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:34:21,365 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:34:21,366 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:34:21,366 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:34:21,367 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:34:21,367 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-27 03:34:21,367 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:34:21,367 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-27 03:34:21,367 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-27 03:34:21,368 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-27 03:34:21,368 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:34:21,388 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 03:34:21,389 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [977306461]
[2020-10-27 03:34:21,392 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-27 03:34:21,392 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-10-27 03:34:21,393 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557069180]
[2020-10-27 03:34:21,399 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-10-27 03:34:21,399 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-27 03:34:21,414 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-10-27 03:34:21,415 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-10-27 03:34:21,417 INFO  L87              Difference]: Start difference. First operand 156 states. Second operand 4 states.
[2020-10-27 03:34:21,903 WARN  L193               SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 204
[2020-10-27 03:34:23,132 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-27 03:34:23,133 INFO  L93              Difference]: Finished difference Result 263 states and 347 transitions.
[2020-10-27 03:34:23,134 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-10-27 03:34:23,135 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 53
[2020-10-27 03:34:23,136 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-27 03:34:23,148 INFO  L225             Difference]: With dead ends: 263
[2020-10-27 03:34:23,149 INFO  L226             Difference]: Without dead ends: 141
[2020-10-27 03:34:23,153 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-10-27 03:34:23,172 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 141 states.
[2020-10-27 03:34:23,246 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 110.
[2020-10-27 03:34:23,263 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 110 states.
[2020-10-27 03:34:23,265 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 127 transitions.
[2020-10-27 03:34:23,267 INFO  L78                 Accepts]: Start accepts. Automaton has 110 states and 127 transitions. Word has length 53
[2020-10-27 03:34:23,267 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-27 03:34:23,267 INFO  L481      AbstractCegarLoop]: Abstraction has 110 states and 127 transitions.
[2020-10-27 03:34:23,268 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-10-27 03:34:23,268 INFO  L276                IsEmpty]: Start isEmpty. Operand 110 states and 127 transitions.
[2020-10-27 03:34:23,271 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 68
[2020-10-27 03:34:23,272 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-27 03:34:23,272 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 03:34:23,272 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-10-27 03:34:23,272 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 03:34:23,273 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-27 03:34:23,273 INFO  L82        PathProgramCache]: Analyzing trace with hash -1739822269, now seen corresponding path program 1 times
[2020-10-27 03:34:23,273 INFO  L162   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-27 03:34:23,274 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [192718509]
[2020-10-27 03:34:23,274 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-27 03:34:23,309 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:34:23,332 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:34:24,232 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:34:24,232 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 103
[2020-10-27 03:34:24,232 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:34:24,232 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 921
[2020-10-27 03:34:24,232 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:34:24,233 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 13
[2020-10-27 03:34:24,233 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-27 03:34:24,233 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 83
[2020-10-27 03:34:24,233 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:34:24,653 WARN  L193               SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 202
[2020-10-27 03:34:24,655 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-27 03:34:24,674 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:34:24,686 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:34:24,758 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:34:24,759 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:34:24,759 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:34:24,759 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 84
[2020-10-27 03:34:24,759 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:34:24,759 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:34:24,759 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:34:24,759 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-10-27 03:34:24,760 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:34:24,778 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-10-27 03:34:24,779 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:34:24,780 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:34:24,781 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:34:24,782 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-27 03:34:24,782 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:34:24,782 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-27 03:34:24,782 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:34:24,782 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:34:24,782 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:34:24,783 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-27 03:34:24,783 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:34:24,784 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-10-27 03:34:24,785 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:34:24,786 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:34:24,787 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:34:24,787 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-27 03:34:24,788 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:34:24,788 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-27 03:34:24,788 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:34:24,788 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:34:24,788 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:34:24,788 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-27 03:34:24,789 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:34:24,790 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-10-27 03:34:24,791 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:34:24,792 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:34:24,794 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:34:24,794 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:34:24,795 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:34:24,795 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-27 03:34:24,795 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:34:24,795 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:34:24,795 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:34:24,795 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-27 03:34:24,795 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:34:24,797 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-10-27 03:34:24,798 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:34:24,799 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:34:24,801 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:34:24,801 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-27 03:34:24,801 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:34:24,801 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-27 03:34:24,801 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:34:24,801 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:34:24,802 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:34:24,802 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-27 03:34:24,802 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:34:24,814 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36
[2020-10-27 03:34:24,815 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:34:24,816 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:34:24,819 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:34:24,819 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-10-27 03:34:24,819 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:34:24,820 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-27 03:34:24,820 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:34:24,820 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:34:24,820 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:34:24,820 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 11
[2020-10-27 03:34:24,820 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:34:24,822 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-27 03:34:24,823 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:34:24,824 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:34:24,825 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:34:24,825 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-27 03:34:24,825 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:34:24,825 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-27 03:34:24,825 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:34:24,826 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-27 03:34:24,826 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:34:24,826 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-27 03:34:24,826 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:34:24,827 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46
[2020-10-27 03:34:24,828 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:34:24,830 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:34:24,831 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:34:24,832 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:34:24,832 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:34:24,832 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-27 03:34:24,832 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:34:24,832 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:34:24,832 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:34:24,833 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-27 03:34:24,833 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:34:24,834 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52
[2020-10-27 03:34:24,836 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:34:24,837 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:34:24,840 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:34:24,841 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:34:24,841 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:34:24,841 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-10-27 03:34:24,841 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:34:24,841 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-10-27 03:34:24,841 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:34:24,842 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-27 03:34:24,842 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:34:24,891 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58
[2020-10-27 03:34:24,894 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:34:24,895 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:34:24,896 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:34:24,896 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:34:24,896 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:34:24,896 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-27 03:34:24,897 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:34:24,897 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-27 03:34:24,897 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-27 03:34:24,897 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-27 03:34:24,897 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:34:24,916 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 03:34:24,917 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [192718509]
[2020-10-27 03:34:24,917 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-27 03:34:24,917 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-10-27 03:34:24,918 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62220252]
[2020-10-27 03:34:24,919 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-10-27 03:34:24,919 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-27 03:34:24,920 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-10-27 03:34:24,920 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2020-10-27 03:34:24,921 INFO  L87              Difference]: Start difference. First operand 110 states and 127 transitions. Second operand 8 states.
[2020-10-27 03:34:25,528 WARN  L193               SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 204
[2020-10-27 03:34:27,834 WARN  L193               SmtUtils]: Spent 768.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 208
[2020-10-27 03:34:28,343 WARN  L193               SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 208
[2020-10-27 03:34:28,758 WARN  L193               SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 208
[2020-10-27 03:34:29,403 WARN  L193               SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 208
[2020-10-27 03:34:29,858 WARN  L193               SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 206
[2020-10-27 03:34:30,954 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-27 03:34:30,954 INFO  L93              Difference]: Finished difference Result 353 states and 483 transitions.
[2020-10-27 03:34:30,956 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2020-10-27 03:34:30,957 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 67
[2020-10-27 03:34:30,957 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-27 03:34:30,963 INFO  L225             Difference]: With dead ends: 353
[2020-10-27 03:34:30,963 INFO  L226             Difference]: Without dead ends: 267
[2020-10-27 03:34:30,966 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 03:34:30,967 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 267 states.
[2020-10-27 03:34:31,059 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 193.
[2020-10-27 03:34:31,059 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 193 states.
[2020-10-27 03:34:31,061 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 233 transitions.
[2020-10-27 03:34:31,062 INFO  L78                 Accepts]: Start accepts. Automaton has 193 states and 233 transitions. Word has length 67
[2020-10-27 03:34:31,062 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-27 03:34:31,063 INFO  L481      AbstractCegarLoop]: Abstraction has 193 states and 233 transitions.
[2020-10-27 03:34:31,063 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-10-27 03:34:31,063 INFO  L276                IsEmpty]: Start isEmpty. Operand 193 states and 233 transitions.
[2020-10-27 03:34:31,071 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 72
[2020-10-27 03:34:31,072 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-27 03:34:31,074 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 03:34:31,074 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-10-27 03:34:31,075 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 03:34:31,075 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-27 03:34:31,075 INFO  L82        PathProgramCache]: Analyzing trace with hash 2113742217, now seen corresponding path program 1 times
[2020-10-27 03:34:31,075 INFO  L162   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-27 03:34:31,075 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1738837757]
[2020-10-27 03:34:31,076 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-27 03:34:31,123 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-10-27 03:34:31,126 INFO  L173   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-10-27 03:34:31,127 INFO  L523         BasicCegarLoop]: Counterexample might be feasible
[2020-10-27 03:34:31,131 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-10-27 03:34:31,168 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:34:31 BoogieIcfgContainer
[2020-10-27 03:34:31,168 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-10-27 03:34:31,172 INFO  L168              Benchmark]: Toolchain (without parser) took 16383.63 ms. Allocated memory was 164.6 MB in the beginning and 427.8 MB in the end (delta: 263.2 MB). Free memory was 139.5 MB in the beginning and 268.7 MB in the end (delta: -129.2 MB). Peak memory consumption was 134.7 MB. Max. memory is 8.0 GB.
[2020-10-27 03:34:31,173 INFO  L168              Benchmark]: CDTParser took 0.62 ms. Allocated memory is still 164.6 MB. Free memory is still 137.6 MB. There was no memory consumed. Max. memory is 8.0 GB.
[2020-10-27 03:34:31,174 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 491.09 ms. Allocated memory is still 164.6 MB. Free memory was 138.8 MB in the beginning and 118.8 MB in the end (delta: 20.0 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB.
[2020-10-27 03:34:31,175 INFO  L168              Benchmark]: Boogie Preprocessor took 120.09 ms. Allocated memory is still 164.6 MB. Free memory was 118.8 MB in the beginning and 114.9 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB.
[2020-10-27 03:34:31,176 INFO  L168              Benchmark]: RCFGBuilder took 1688.79 ms. Allocated memory is still 164.6 MB. Free memory was 114.9 MB in the beginning and 64.1 MB in the end (delta: 50.7 MB). Peak memory consumption was 53.5 MB. Max. memory is 8.0 GB.
[2020-10-27 03:34:31,178 INFO  L168              Benchmark]: TraceAbstraction took 14071.83 ms. Allocated memory was 164.6 MB in the beginning and 427.8 MB in the end (delta: 263.2 MB). Free memory was 63.6 MB in the beginning and 268.7 MB in the end (delta: -205.1 MB). Peak memory consumption was 58.1 MB. Max. memory is 8.0 GB.
[2020-10-27 03:34:31,190 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.62 ms. Allocated memory is still 164.6 MB. Free memory is still 137.6 MB. There was no memory consumed. Max. memory is 8.0 GB.
 * CACSL2BoogieTranslator took 491.09 ms. Allocated memory is still 164.6 MB. Free memory was 138.8 MB in the beginning and 118.8 MB in the end (delta: 20.0 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB.
 * Boogie Preprocessor took 120.09 ms. Allocated memory is still 164.6 MB. Free memory was 118.8 MB in the beginning and 114.9 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB.
 * RCFGBuilder took 1688.79 ms. Allocated memory is still 164.6 MB. Free memory was 114.9 MB in the beginning and 64.1 MB in the end (delta: 50.7 MB). Peak memory consumption was 53.5 MB. Max. memory is 8.0 GB.
 * TraceAbstraction took 14071.83 ms. Allocated memory was 164.6 MB in the beginning and 427.8 MB in the end (delta: 263.2 MB). Free memory was 63.6 MB in the beginning and 268.7 MB in the end (delta: -205.1 MB). Peak memory consumption was 58.1 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: 
[L98]               int pumpRunning  =    0;
[L99]               int systemActive  =    1;
[L311]              int waterLevel  =    1;
[L312]              int methaneLevelCritical  =    0;
[L391]              int cleanupTimeShifts  =    4;
[L656]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L464]              int retValue_acc ;
[L465]              int tmp ;
[L469]  FCALL       select_helpers()
[L470]  FCALL       select_features()
[L471]  CALL, EXPR  valid_product()
[L80]               int retValue_acc ;
[L83]               retValue_acc = 1
[L84]               return (retValue_acc);
[L471]  RET, EXPR   valid_product()
[L471]              tmp = valid_product()
[L473]  COND TRUE   \read(tmp)
[L475]  FCALL       setup()
[L476]  CALL        runTest()
[L458]  CALL        test()
[L244]              int splverifierCounter ;
[L245]              int tmp ;
[L246]              int tmp___0 ;
[L247]              int tmp___1 ;
[L248]              int tmp___2 ;
[L251]              splverifierCounter = 0
[L253]  COND TRUE   1
[L255]  COND TRUE   splverifierCounter < 4
[L261]              tmp = __VERIFIER_nondet_int()
[L263]  COND TRUE   \read(tmp)
[L265]  CALL        waterRise()
[L329]  COND TRUE   waterLevel < 2
[L330]              waterLevel = waterLevel + 1
[L265]  RET         waterRise()
[L271]              tmp___0 = __VERIFIER_nondet_int()
[L273]  COND FALSE  !(\read(tmp___0))
[L281]              tmp___2 = __VERIFIER_nondet_int()
[L283]  COND FALSE  !(\read(tmp___2))
[L289]              tmp___1 = __VERIFIER_nondet_int()
[L291]  COND TRUE   \read(tmp___1)
[L298]  CALL        timeShift()
[L106]  COND FALSE  !(\read(pumpRunning))
[L113]  COND TRUE   \read(systemActive)
[L115]  CALL        processEnvironment()
[L135]              int tmp ;
[L138]  COND FALSE  !(\read(pumpRunning))
[L153]  FCALL       processEnvironment__wrappee__base()
[L115]  RET         processEnvironment()
[L121]  CALL        __utac_acc__Specification3_spec__1()
[L854]              int tmp ;
[L855]              int tmp___0 ;
[L856]              int tmp___1 ;
[L860]  CALL, EXPR  isMethaneLevelCritical()
[L350]              int retValue_acc ;
[L353]              retValue_acc = methaneLevelCritical
[L354]              return (retValue_acc);
[L860]  RET, EXPR   isMethaneLevelCritical()
[L860]              tmp = isMethaneLevelCritical()
[L862]  COND FALSE  !(\read(tmp))
[L866]  CALL, EXPR  getWaterLevel()
[L382]              int retValue_acc ;
[L385]              retValue_acc = waterLevel
[L386]              return (retValue_acc);
[L866]  RET, EXPR   getWaterLevel()
[L866]              tmp___0 = getWaterLevel()
[L868]  COND TRUE   tmp___0 == 2
[L870]  CALL, EXPR  isPumpRunning()
[L187]              int retValue_acc ;
[L190]              retValue_acc = pumpRunning
[L191]              return (retValue_acc);
[L870]  RET, EXPR   isPumpRunning()
[L870]              tmp___1 = isPumpRunning()
[L872]  COND FALSE  !(\read(tmp___1))
[L876]  CALL        __automaton_fail()
[L46]   CALL        reach_error()
[L3]                __assert_fail("0", "minepump_spec3_product06.cil.c", 3, "reach_error")

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 37 procedures, 223 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 13.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 7.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 211 SDtfs, 405 SDslu, 185 SDs, 0 SdLazy, 847 SolverSat, 253 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 4.0s 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: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 105 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 5.4s InterpolantComputationTime, 191 NumberOfCodeBlocks, 191 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 118 ConstructedInterpolants, 0 QuantifiedInterpolants, 38430 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...