/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_product25.cil.c


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


This is Ultimate 0.2.0-0f64333
[2020-10-27 03:35:37,225 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-10-27 03:35:37,229 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-10-27 03:35:37,290 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-10-27 03:35:37,291 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-10-27 03:35:37,297 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-10-27 03:35:37,300 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-10-27 03:35:37,304 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-10-27 03:35:37,307 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-10-27 03:35:37,313 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-10-27 03:35:37,315 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-10-27 03:35:37,316 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-10-27 03:35:37,317 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-10-27 03:35:37,320 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-10-27 03:35:37,322 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-10-27 03:35:37,324 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-10-27 03:35:37,325 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-10-27 03:35:37,329 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-10-27 03:35:37,338 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-10-27 03:35:37,344 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-10-27 03:35:37,347 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-10-27 03:35:37,349 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-10-27 03:35:37,351 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-10-27 03:35:37,353 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-10-27 03:35:37,364 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-10-27 03:35:37,364 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-10-27 03:35:37,365 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-10-27 03:35:37,366 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-10-27 03:35:37,368 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-10-27 03:35:37,369 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-10-27 03:35:37,370 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-10-27 03:35:37,371 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-10-27 03:35:37,373 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-10-27 03:35:37,374 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-10-27 03:35:37,375 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-10-27 03:35:37,375 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-10-27 03:35:37,382 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-10-27 03:35:37,383 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-10-27 03:35:37,383 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-10-27 03:35:37,384 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-10-27 03:35:37,385 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-10-27 03:35:37,392 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 03:35:37,437 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-10-27 03:35:37,438 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-10-27 03:35:37,442 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-10-27 03:35:37,443 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-10-27 03:35:37,443 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-10-27 03:35:37,443 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-10-27 03:35:37,443 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-10-27 03:35:37,444 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-10-27 03:35:37,444 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-10-27 03:35:37,444 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-10-27 03:35:37,445 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-10-27 03:35:37,445 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-10-27 03:35:37,445 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-10-27 03:35:37,446 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-10-27 03:35:37,446 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-10-27 03:35:37,446 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-10-27 03:35:37,446 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-10-27 03:35:37,446 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-10-27 03:35:37,447 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-10-27 03:35:37,447 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-10-27 03:35:37,447 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-10-27 03:35:37,447 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-10-27 03:35:37,448 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-10-27 03:35:37,448 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-10-27 03:35:37,448 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-10-27 03:35:37,448 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-10-27 03:35:37,448 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-10-27 03:35:37,448 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-10-27 03:35:37,449 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-10-27 03:35:37,449 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true;
[2020-10-27 03:35:37,885 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-10-27 03:35:37,934 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-10-27 03:35:37,937 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-10-27 03:35:37,939 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-10-27 03:35:37,939 INFO  L275        PluginConnector]: CDTParser initialized
[2020-10-27 03:35:37,943 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product25.cil.c
[2020-10-27 03:35:38,029 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cf7300a50/cdad4202bea240d0bce8c0ac67030cb3/FLAGda329c03d
[2020-10-27 03:35:38,785 INFO  L306              CDTParser]: Found 1 translation units.
[2020-10-27 03:35:38,786 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product25.cil.c
[2020-10-27 03:35:38,798 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cf7300a50/cdad4202bea240d0bce8c0ac67030cb3/FLAGda329c03d
[2020-10-27 03:35:39,081 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cf7300a50/cdad4202bea240d0bce8c0ac67030cb3
[2020-10-27 03:35:39,086 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-10-27 03:35:39,094 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-10-27 03:35:39,099 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-10-27 03:35:39,099 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-10-27 03:35:39,103 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-10-27 03:35:39,104 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:35:39" (1/1) ...
[2020-10-27 03:35:39,109 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bef2d0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:39, skipping insertion in model container
[2020-10-27 03:35:39,109 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:35:39" (1/1) ...
[2020-10-27 03:35:39,119 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-10-27 03:35:39,192 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-10-27 03:35:39,548 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-27 03:35:39,562 INFO  L203         MainTranslator]: Completed pre-run
[2020-10-27 03:35:39,642 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-27 03:35:39,681 INFO  L208         MainTranslator]: Completed translation
[2020-10-27 03:35:39,682 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:39 WrapperNode
[2020-10-27 03:35:39,682 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-10-27 03:35:39,684 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-10-27 03:35:39,684 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-10-27 03:35:39,685 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-10-27 03:35:39,699 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:39" (1/1) ...
[2020-10-27 03:35:39,702 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:39" (1/1) ...
[2020-10-27 03:35:39,734 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:39" (1/1) ...
[2020-10-27 03:35:39,734 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:39" (1/1) ...
[2020-10-27 03:35:39,794 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:39" (1/1) ...
[2020-10-27 03:35:39,813 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:39" (1/1) ...
[2020-10-27 03:35:39,827 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:39" (1/1) ...
[2020-10-27 03:35:39,843 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-10-27 03:35:39,848 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-10-27 03:35:39,849 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-10-27 03:35:39,849 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-10-27 03:35:39,850 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:39" (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 03:35:39,939 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-10-27 03:35:39,939 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-10-27 03:35:39,940 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-10-27 03:35:39,940 INFO  L138     BoogieDeclarations]: Found implementation of procedure reach_error
[2020-10-27 03:35:39,940 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-10-27 03:35:39,941 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-10-27 03:35:39,941 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-10-27 03:35:39,941 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-10-27 03:35:39,942 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-10-27 03:35:39,942 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-10-27 03:35:39,943 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-10-27 03:35:39,943 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-10-27 03:35:39,943 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-10-27 03:35:39,944 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-10-27 03:35:39,944 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-10-27 03:35:39,945 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-10-27 03:35:39,945 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-10-27 03:35:39,945 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-10-27 03:35:39,945 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-10-27 03:35:39,945 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-10-27 03:35:39,946 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-10-27 03:35:39,946 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-10-27 03:35:39,946 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-10-27 03:35:39,946 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-10-27 03:35:39,946 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-10-27 03:35:39,946 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-10-27 03:35:39,947 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-10-27 03:35:39,947 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-10-27 03:35:39,947 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-10-27 03:35:39,947 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-10-27 03:35:39,947 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-10-27 03:35:39,947 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor
[2020-10-27 03:35:39,947 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-10-27 03:35:39,948 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-10-27 03:35:39,948 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-10-27 03:35:39,948 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-10-27 03:35:39,949 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-10-27 03:35:39,949 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-10-27 03:35:39,949 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-10-27 03:35:39,949 INFO  L130     BoogieDeclarations]: Found specification of procedure abort
[2020-10-27 03:35:39,949 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-10-27 03:35:39,949 INFO  L130     BoogieDeclarations]: Found specification of procedure reach_error
[2020-10-27 03:35:39,950 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-10-27 03:35:39,950 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-10-27 03:35:39,950 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-10-27 03:35:39,950 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-10-27 03:35:39,950 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-10-27 03:35:39,950 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-10-27 03:35:39,950 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-10-27 03:35:39,951 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-10-27 03:35:39,951 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-10-27 03:35:39,951 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-10-27 03:35:39,952 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-10-27 03:35:39,952 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-10-27 03:35:39,952 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-10-27 03:35:39,952 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-10-27 03:35:39,953 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-10-27 03:35:39,953 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-10-27 03:35:39,953 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-10-27 03:35:39,954 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-10-27 03:35:39,954 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-10-27 03:35:39,954 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-10-27 03:35:39,954 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-10-27 03:35:39,954 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-10-27 03:35:39,954 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-10-27 03:35:39,955 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-10-27 03:35:39,955 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-10-27 03:35:39,955 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-10-27 03:35:39,955 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-10-27 03:35:39,955 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-10-27 03:35:39,956 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-10-27 03:35:39,956 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-10-27 03:35:39,958 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-10-27 03:35:39,958 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-10-27 03:35:39,958 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-10-27 03:35:39,959 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-10-27 03:35:39,959 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-10-27 03:35:39,959 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-10-27 03:35:39,959 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-10-27 03:35:39,959 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-10-27 03:35:39,960 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-10-27 03:35:39,960 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-10-27 03:35:39,961 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-10-27 03:35:39,961 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-10-27 03:35:39,961 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-10-27 03:35:39,961 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-10-27 03:35:39,961 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-10-27 03:35:39,962 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor
[2020-10-27 03:35:39,962 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-10-27 03:35:39,962 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-10-27 03:35:39,962 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-10-27 03:35:39,962 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-10-27 03:35:41,375 INFO  L293             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-10-27 03:35:41,375 INFO  L298             CfgBuilder]: Removed 5 assume(true) statements.
[2020-10-27 03:35:41,377 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:35:41 BoogieIcfgContainer
[2020-10-27 03:35:41,378 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-10-27 03:35:41,379 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-10-27 03:35:41,380 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-10-27 03:35:41,383 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-10-27 03:35:41,383 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:35:39" (1/3) ...
[2020-10-27 03:35:41,384 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54bb2d40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:35:41, skipping insertion in model container
[2020-10-27 03:35:41,384 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:39" (2/3) ...
[2020-10-27 03:35:41,385 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54bb2d40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:35:41, skipping insertion in model container
[2020-10-27 03:35:41,385 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:35:41" (3/3) ...
[2020-10-27 03:35:41,387 INFO  L111   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product25.cil.c
[2020-10-27 03:35:41,399 INFO  L164   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-10-27 03:35:41,408 INFO  L176   ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations.
[2020-10-27 03:35:41,427 INFO  L253      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2020-10-27 03:35:41,455 INFO  L377      AbstractCegarLoop]: Interprodecural is true
[2020-10-27 03:35:41,455 INFO  L378      AbstractCegarLoop]: Hoare is true
[2020-10-27 03:35:41,455 INFO  L379      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-10-27 03:35:41,455 INFO  L380      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-10-27 03:35:41,455 INFO  L381      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-10-27 03:35:41,456 INFO  L382      AbstractCegarLoop]: Difference is false
[2020-10-27 03:35:41,456 INFO  L383      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-10-27 03:35:41,456 INFO  L387      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-10-27 03:35:41,479 INFO  L276                IsEmpty]: Start isEmpty. Operand 168 states.
[2020-10-27 03:35:41,488 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 54
[2020-10-27 03:35:41,489 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-27 03:35:41,490 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 03:35:41,490 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 03:35:41,497 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-27 03:35:41,497 INFO  L82        PathProgramCache]: Analyzing trace with hash 702987771, now seen corresponding path program 1 times
[2020-10-27 03:35:41,507 INFO  L162   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-27 03:35:41,508 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1305450359]
[2020-10-27 03:35:41,508 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-27 03:35:41,822 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:35:41,894 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:35:41,997 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:35:42,191 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:35:44,991 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:35:44,992 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 87
[2020-10-27 03:35:44,995 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-10-27 03:35:44,995 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3164
[2020-10-27 03:35:44,997 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:35:44,998 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 15
[2020-10-27 03:35:44,998 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-27 03:35:44,999 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 67
[2020-10-27 03:35:44,999 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-10-27 03:35:45,495 WARN  L193               SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 202
[2020-10-27 03:35:45,497 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-27 03:35:45,520 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:35:45,537 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:35:45,623 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:35:45,624 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:35:45,624 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:35:45,624 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 102
[2020-10-27 03:35:45,625 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:35:45,625 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:35:45,625 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:35:45,625 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-10-27 03:35:45,625 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:35:45,665 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-10-27 03:35:45,667 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:35:45,668 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:35:45,670 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:35:45,670 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-27 03:35:45,670 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:35:45,671 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-27 03:35:45,671 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:35:45,671 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:35:45,671 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:35:45,672 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-27 03:35:45,672 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:35:45,673 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-10-27 03:35:45,675 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:35:45,676 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:35:45,678 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:35:45,678 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-27 03:35:45,678 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:35:45,679 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-27 03:35:45,679 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:35:45,679 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:35:45,679 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:35:45,680 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-27 03:35:45,680 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:35:45,681 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-10-27 03:35:45,683 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:35:45,685 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:35:45,688 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:35:45,688 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:35:45,689 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:35:45,689 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-10-27 03:35:45,689 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:35:45,689 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:35:45,690 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:35:45,690 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-27 03:35:45,690 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:35:45,692 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-10-27 03:35:45,694 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:35:45,695 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:35:45,697 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:35:45,697 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-27 03:35:45,697 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:35:45,698 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-27 03:35:45,698 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:35:45,698 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:35:45,698 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:35:45,698 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-27 03:35:45,699 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:35:45,700 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2020-10-27 03:35:45,702 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:35:45,703 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:35:45,706 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:35:45,706 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:35:45,706 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:35:45,706 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-27 03:35:45,707 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:35:45,707 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:35:45,707 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:35:45,707 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-27 03:35:45,707 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:35:45,709 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2020-10-27 03:35:45,711 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:35:45,713 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:35:45,719 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:35:45,719 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:35:45,719 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:35:45,719 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-10-27 03:35:45,720 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:35:45,720 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-10-27 03:35:45,720 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:35:45,720 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-27 03:35:45,720 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:35:45,737 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44
[2020-10-27 03:35:45,738 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:35:45,740 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:35:45,741 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:35:45,741 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:35:45,742 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:35:45,742 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-27 03:35:45,742 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:35:45,742 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-27 03:35:45,743 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-27 03:35:45,743 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-27 03:35:45,743 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:35:45,763 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 03:35:45,764 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1305450359]
[2020-10-27 03:35:45,766 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-27 03:35:45,767 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-10-27 03:35:45,767 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620355429]
[2020-10-27 03:35:45,773 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-10-27 03:35:45,774 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-27 03:35:45,788 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-10-27 03:35:45,792 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2020-10-27 03:35:45,794 INFO  L87              Difference]: Start difference. First operand 168 states. Second operand 8 states.
[2020-10-27 03:35:46,394 WARN  L193               SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 204
[2020-10-27 03:35:47,503 WARN  L193               SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 205
[2020-10-27 03:35:48,316 WARN  L193               SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 206
[2020-10-27 03:35:48,933 WARN  L193               SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 209
[2020-10-27 03:35:49,415 WARN  L193               SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 209
[2020-10-27 03:35:49,907 WARN  L193               SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 207
[2020-10-27 03:35:50,479 WARN  L193               SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 211
[2020-10-27 03:35:50,992 WARN  L193               SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 211
[2020-10-27 03:35:51,425 WARN  L193               SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 204
[2020-10-27 03:35:52,140 WARN  L193               SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 208
[2020-10-27 03:35:53,843 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-27 03:35:53,843 INFO  L93              Difference]: Finished difference Result 470 states and 663 transitions.
[2020-10-27 03:35:53,844 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2020-10-27 03:35:53,845 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 53
[2020-10-27 03:35:53,846 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-27 03:35:53,863 INFO  L225             Difference]: With dead ends: 470
[2020-10-27 03:35:53,863 INFO  L226             Difference]: Without dead ends: 321
[2020-10-27 03:35:53,869 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306
[2020-10-27 03:35:53,891 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 321 states.
[2020-10-27 03:35:54,058 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 277.
[2020-10-27 03:35:54,060 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 277 states.
[2020-10-27 03:35:54,071 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 352 transitions.
[2020-10-27 03:35:54,073 INFO  L78                 Accepts]: Start accepts. Automaton has 277 states and 352 transitions. Word has length 53
[2020-10-27 03:35:54,073 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-27 03:35:54,074 INFO  L481      AbstractCegarLoop]: Abstraction has 277 states and 352 transitions.
[2020-10-27 03:35:54,074 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-10-27 03:35:54,074 INFO  L276                IsEmpty]: Start isEmpty. Operand 277 states and 352 transitions.
[2020-10-27 03:35:54,093 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 67
[2020-10-27 03:35:54,093 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-27 03:35:54,093 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]
[2020-10-27 03:35:54,094 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-10-27 03:35:54,095 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 03:35:54,096 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-27 03:35:54,096 INFO  L82        PathProgramCache]: Analyzing trace with hash 489406349, now seen corresponding path program 1 times
[2020-10-27 03:35:54,096 INFO  L162   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-27 03:35:54,096 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [641649550]
[2020-10-27 03:35:54,097 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-27 03:35:54,150 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:35:54,179 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:35:54,481 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:35:54,608 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:35:57,634 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:35:59,153 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:35:59,153 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 102
[2020-10-27 03:35:59,153 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 4
[2020-10-27 03:35:59,153 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5000
[2020-10-27 03:35:59,154 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:35:59,154 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:35:59,154 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-27 03:35:59,154 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 62
[2020-10-27 03:35:59,154 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:35:59,505 WARN  L193               SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 202
[2020-10-27 03:35:59,505 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-27 03:35:59,538 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:35:59,552 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:35:59,608 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:35:59,609 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:35:59,609 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:35:59,609 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 69
[2020-10-27 03:35:59,609 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:35:59,609 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:35:59,609 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:35:59,610 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-10-27 03:35:59,610 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:35:59,650 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-10-27 03:35:59,652 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:35:59,654 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:35:59,656 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:35:59,656 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-27 03:35:59,656 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:35:59,656 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-27 03:35:59,657 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:35:59,657 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:35:59,657 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:35:59,657 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-27 03:35:59,658 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:35:59,659 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-10-27 03:35:59,660 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:35:59,661 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:35:59,663 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:35:59,663 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-27 03:35:59,663 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:35:59,663 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-27 03:35:59,664 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:35:59,664 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:35:59,664 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:35:59,664 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-27 03:35:59,664 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:35:59,668 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-10-27 03:35:59,669 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:35:59,670 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:35:59,672 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:35:59,672 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:35:59,673 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:35:59,673 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-27 03:35:59,673 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:35:59,673 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:35:59,674 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:35:59,674 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-27 03:35:59,674 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:35:59,676 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-10-27 03:35:59,677 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:35:59,678 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:35:59,679 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:35:59,680 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-27 03:35:59,680 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:35:59,680 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-27 03:35:59,680 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:35:59,681 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:35:59,681 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:35:59,681 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-27 03:35:59,681 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:35:59,696 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28
[2020-10-27 03:35:59,698 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:35:59,699 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:35:59,701 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:35:59,701 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:35:59,701 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:35:59,702 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-27 03:35:59,702 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:35:59,702 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:35:59,702 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:35:59,702 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-27 03:35:59,703 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:35:59,704 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2020-10-27 03:35:59,706 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:35:59,707 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:35:59,709 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:35:59,709 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:35:59,709 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:35:59,709 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-27 03:35:59,710 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:35:59,710 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-27 03:35:59,710 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-27 03:35:59,710 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-27 03:35:59,711 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:35:59,712 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45
[2020-10-27 03:35:59,713 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:35:59,714 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:35:59,715 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:35:59,715 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:35:59,715 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:35:59,716 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-27 03:35:59,716 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:35:59,716 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-27 03:35:59,716 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-27 03:35:59,717 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-27 03:35:59,717 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:35:59,718 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51
[2020-10-27 03:35:59,719 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:35:59,720 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:35:59,721 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:35:59,721 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:35:59,721 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:35:59,722 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-27 03:35:59,722 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:35:59,722 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-27 03:35:59,722 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-27 03:35:59,722 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-27 03:35:59,723 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:35:59,724 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57
[2020-10-27 03:35:59,725 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-27 03:35:59,726 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-27 03:35:59,727 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-27 03:35:59,727 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-27 03:35:59,727 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-27 03:35:59,727 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-27 03:35:59,728 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-10-27 03:35:59,728 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-27 03:35:59,728 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-27 03:35:59,728 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-27 03:35:59,729 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-27 03:35:59,746 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 03:35:59,747 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [641649550]
[2020-10-27 03:35:59,747 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-27 03:35:59,747 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-10-27 03:35:59,748 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170191926]
[2020-10-27 03:35:59,749 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-10-27 03:35:59,750 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-27 03:35:59,750 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-10-27 03:35:59,750 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-10-27 03:35:59,751 INFO  L87              Difference]: Start difference. First operand 277 states and 352 transitions. Second operand 5 states.
[2020-10-27 03:36:00,275 WARN  L193               SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 204
[2020-10-27 03:36:01,383 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-27 03:36:01,383 INFO  L93              Difference]: Finished difference Result 584 states and 804 transitions.
[2020-10-27 03:36:01,386 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2020-10-27 03:36:01,387 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 66
[2020-10-27 03:36:01,387 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-27 03:36:01,397 INFO  L225             Difference]: With dead ends: 584
[2020-10-27 03:36:01,397 INFO  L226             Difference]: Without dead ends: 331
[2020-10-27 03:36:01,405 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-10-27 03:36:01,408 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 331 states.
[2020-10-27 03:36:01,540 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 273.
[2020-10-27 03:36:01,540 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 273 states.
[2020-10-27 03:36:01,544 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 335 transitions.
[2020-10-27 03:36:01,545 INFO  L78                 Accepts]: Start accepts. Automaton has 273 states and 335 transitions. Word has length 66
[2020-10-27 03:36:01,546 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-27 03:36:01,546 INFO  L481      AbstractCegarLoop]: Abstraction has 273 states and 335 transitions.
[2020-10-27 03:36:01,546 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-10-27 03:36:01,546 INFO  L276                IsEmpty]: Start isEmpty. Operand 273 states and 335 transitions.
[2020-10-27 03:36:01,551 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 71
[2020-10-27 03:36:01,552 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-27 03:36:01,552 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]
[2020-10-27 03:36:01,552 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-10-27 03:36:01,553 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 03:36:01,553 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-27 03:36:01,553 INFO  L82        PathProgramCache]: Analyzing trace with hash -2134276980, now seen corresponding path program 1 times
[2020-10-27 03:36:01,554 INFO  L162   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-27 03:36:01,555 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [742616215]
[2020-10-27 03:36:01,555 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-27 03:36:01,595 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-10-27 03:36:01,598 INFO  L173   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-10-27 03:36:01,598 INFO  L523         BasicCegarLoop]: Counterexample might be feasible
[2020-10-27 03:36:01,603 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-10-27 03:36:01,640 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:36:01 BoogieIcfgContainer
[2020-10-27 03:36:01,640 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-10-27 03:36:01,642 INFO  L168              Benchmark]: Toolchain (without parser) took 22553.38 ms. Allocated memory was 151.0 MB in the beginning and 453.0 MB in the end (delta: 302.0 MB). Free memory was 125.3 MB in the beginning and 328.2 MB in the end (delta: -203.0 MB). Peak memory consumption was 99.4 MB. Max. memory is 8.0 GB.
[2020-10-27 03:36:01,643 INFO  L168              Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 125.8 MB. Free memory is still 99.9 MB. There was no memory consumed. Max. memory is 8.0 GB.
[2020-10-27 03:36:01,645 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 584.67 ms. Allocated memory is still 151.0 MB. Free memory was 124.7 MB in the beginning and 103.9 MB in the end (delta: 20.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB.
[2020-10-27 03:36:01,646 INFO  L168              Benchmark]: Boogie Preprocessor took 160.03 ms. Allocated memory is still 151.0 MB. Free memory was 103.9 MB in the beginning and 100.1 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB.
[2020-10-27 03:36:01,647 INFO  L168              Benchmark]: RCFGBuilder took 1529.50 ms. Allocated memory is still 151.0 MB. Free memory was 100.1 MB in the beginning and 91.1 MB in the end (delta: 9.0 MB). Peak memory consumption was 17.3 MB. Max. memory is 8.0 GB.
[2020-10-27 03:36:01,648 INFO  L168              Benchmark]: TraceAbstraction took 20260.76 ms. Allocated memory was 151.0 MB in the beginning and 453.0 MB in the end (delta: 302.0 MB). Free memory was 91.1 MB in the beginning and 328.2 MB in the end (delta: -237.2 MB). Peak memory consumption was 64.3 MB. Max. memory is 8.0 GB.
[2020-10-27 03:36:01,662 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.24 ms. Allocated memory is still 125.8 MB. Free memory is still 99.9 MB. There was no memory consumed. Max. memory is 8.0 GB.
 * CACSL2BoogieTranslator took 584.67 ms. Allocated memory is still 151.0 MB. Free memory was 124.7 MB in the beginning and 103.9 MB in the end (delta: 20.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB.
 * Boogie Preprocessor took 160.03 ms. Allocated memory is still 151.0 MB. Free memory was 103.9 MB in the beginning and 100.1 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB.
 * RCFGBuilder took 1529.50 ms. Allocated memory is still 151.0 MB. Free memory was 100.1 MB in the beginning and 91.1 MB in the end (delta: 9.0 MB). Peak memory consumption was 17.3 MB. Max. memory is 8.0 GB.
 * TraceAbstraction took 20260.76 ms. Allocated memory was 151.0 MB in the beginning and 453.0 MB in the end (delta: 302.0 MB). Free memory was 91.1 MB in the beginning and 328.2 MB in the end (delta: -237.2 MB). Peak memory consumption was 64.3 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: 
[L258]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L460]              int waterLevel  =    1;
[L461]              int methaneLevelCritical  =    0;
[L587]              int cleanupTimeShifts  =    4;
[L688]              int pumpRunning  =    0;
[L689]              int systemActive  =    1;
[L663]              int retValue_acc ;
[L664]              int tmp ;
[L668]  FCALL       select_helpers()
[L669]  FCALL       select_features()
[L670]  CALL, EXPR  valid_product()
[L578]              int retValue_acc ;
[L581]              retValue_acc = 1
[L582]              return (retValue_acc);
[L670]  RET, EXPR   valid_product()
[L670]              tmp = valid_product()
[L672]  COND TRUE   \read(tmp)
[L674]  FCALL       setup()
[L675]  CALL        runTest()
[L657]  CALL        test()
[L859]              int splverifierCounter ;
[L860]              int tmp ;
[L861]              int tmp___0 ;
[L862]              int tmp___1 ;
[L863]              int tmp___2 ;
[L866]              splverifierCounter = 0
[L868]  COND TRUE   1
[L870]  COND TRUE   splverifierCounter < 4
[L876]              tmp = __VERIFIER_nondet_int()
[L878]  COND TRUE   \read(tmp)
[L880]  CALL        waterRise()
[L478]  COND TRUE   waterLevel < 2
[L479]              waterLevel = waterLevel + 1
[L880]  RET         waterRise()
[L886]              tmp___0 = __VERIFIER_nondet_int()
[L888]  COND FALSE  !(\read(tmp___0))
[L896]              tmp___2 = __VERIFIER_nondet_int()
[L898]  COND TRUE   \read(tmp___2)
[L911]  CALL        timeShift()
[L695]  COND FALSE  !(\read(pumpRunning))
[L702]  COND TRUE   \read(systemActive)
[L704]  CALL        processEnvironment()
[L724]              int tmp ;
[L727]  COND FALSE  !(\read(pumpRunning))
[L742]  FCALL       processEnvironment__wrappee__base()
[L704]  RET         processEnvironment()
[L710]  CALL        __utac_acc__Specification3_spec__1()
[L47]               int tmp ;
[L48]               int tmp___0 ;
[L49]               int tmp___1 ;
[L53]   CALL, EXPR  isMethaneLevelCritical()
[L499]              int retValue_acc ;
[L502]              retValue_acc = methaneLevelCritical
[L503]              return (retValue_acc);
[L53]   RET, EXPR   isMethaneLevelCritical()
[L53]               tmp = isMethaneLevelCritical()
[L55]   COND FALSE  !(\read(tmp))
[L59]   CALL, EXPR  getWaterLevel()
[L531]              int retValue_acc ;
[L534]              retValue_acc = waterLevel
[L535]              return (retValue_acc);
[L59]   RET, EXPR   getWaterLevel()
[L59]               tmp___0 = getWaterLevel()
[L61]   COND TRUE   tmp___0 == 2
[L63]   CALL, EXPR  isPumpRunning()
[L794]              int retValue_acc ;
[L797]              retValue_acc = pumpRunning
[L798]              return (retValue_acc);
[L63]   RET, EXPR   isPumpRunning()
[L63]               tmp___1 = isPumpRunning()
[L65]   COND FALSE  !(\read(tmp___1))
[L69]   CALL        __automaton_fail()
[L84]   CALL        reach_error()
[L3]                __assert_fail("0", "minepump_spec3_product25.cil.c", 3, "reach_error")

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 39 procedures, 236 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 20.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 9.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 217 SDtfs, 622 SDslu, 232 SDs, 0 SdLazy, 1025 SolverSat, 333 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 5.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=277occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 2 MinimizatonAttempts, 102 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 9.5s InterpolantComputationTime, 189 NumberOfCodeBlocks, 189 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 117 ConstructedInterpolants, 0 QuantifiedInterpolants, 38714 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...