/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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 SingleStatement --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=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product14.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 20:12:49,516 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 20:12:49,520 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 20:12:49,546 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 20:12:49,546 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 20:12:49,547 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 20:12:49,549 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 20:12:49,551 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 20:12:49,552 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 20:12:49,553 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 20:12:49,555 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 20:12:49,556 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 20:12:49,556 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 20:12:49,557 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 20:12:49,559 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 20:12:49,560 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 20:12:49,561 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 20:12:49,564 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 20:12:49,566 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 20:12:49,569 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 20:12:49,573 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 20:12:49,575 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 20:12:49,576 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 20:12:49,578 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 20:12:49,584 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 20:12:49,584 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 20:12:49,585 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 20:12:49,588 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 20:12:49,589 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 20:12:49,592 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 20:12:49,592 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 20:12:49,593 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 20:12:49,594 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 20:12:49,595 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 20:12:49,596 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 20:12:49,597 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 20:12:49,598 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 20:12:49,598 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 20:12:49,598 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 20:12:49,599 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 20:12:49,601 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 20:12:49,602 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
[2020-09-24 20:12:49,666 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 20:12:49,666 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 20:12:49,667 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 20:12:49,668 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 20:12:49,668 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 20:12:49,668 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 20:12:49,668 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 20:12:49,668 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 20:12:49,669 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 20:12:49,669 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 20:12:49,670 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 20:12:49,670 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 20:12:49,670 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 20:12:49,670 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 20:12:49,671 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 20:12:49,672 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 20:12:49,672 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 20:12:49,673 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 20:12:49,673 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 20:12:49,673 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 20:12:49,673 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 20:12:49,673 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 20:12:49,674 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 20:12:49,674 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 20:12:49,674 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 20:12:49,674 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 20:12:49,674 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 20:12:49,675 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 20:12:49,675 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 20:12:49,675 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
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 -> SingleStatement
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=BIGGEST;log-additional-information=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=BIGGEST;log-additional-information=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=BIGGEST;log-additional-information=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=BIGGEST;log-additional-information=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=BIGGEST;log-additional-information=true;
[2020-09-24 20:12:50,158 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 20:12:50,176 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 20:12:50,181 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 20:12:50,183 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 20:12:50,183 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 20:12:50,184 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product14.cil.c
[2020-09-24 20:12:50,283 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3ce8c28c5/60e03c00565f4f9695d7a8223462fe05/FLAG872ad082d
[2020-09-24 20:12:50,935 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 20:12:50,936 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product14.cil.c
[2020-09-24 20:12:50,950 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3ce8c28c5/60e03c00565f4f9695d7a8223462fe05/FLAG872ad082d
[2020-09-24 20:12:51,154 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3ce8c28c5/60e03c00565f4f9695d7a8223462fe05
[2020-09-24 20:12:51,168 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 20:12:51,173 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 20:12:51,174 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 20:12:51,175 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 20:12:51,179 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 20:12:51,180 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:12:51" (1/1) ...
[2020-09-24 20:12:51,185 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@823e3a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:51, skipping insertion in model container
[2020-09-24 20:12:51,185 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:12:51" (1/1) ...
[2020-09-24 20:12:51,195 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 20:12:51,254 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 20:12:51,603 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 20:12:51,619 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 20:12:51,802 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 20:12:51,841 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 20:12:51,842 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:51 WrapperNode
[2020-09-24 20:12:51,842 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 20:12:51,843 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 20:12:51,843 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 20:12:51,843 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 20:12:51,858 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:51" (1/1) ...
[2020-09-24 20:12:51,858 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:51" (1/1) ...
[2020-09-24 20:12:51,880 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:51" (1/1) ...
[2020-09-24 20:12:51,883 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:51" (1/1) ...
[2020-09-24 20:12:51,934 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:51" (1/1) ...
[2020-09-24 20:12:51,948 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:51" (1/1) ...
[2020-09-24 20:12:51,954 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:51" (1/1) ...
[2020-09-24 20:12:51,962 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 20:12:51,962 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 20:12:51,962 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 20:12:51,963 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 20:12:51,964 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:51" (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
[2020-09-24 20:12:52,040 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 20:12:52,040 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 20:12:52,041 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 20:12:52,041 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 20:12:52,041 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 20:12:52,041 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 20:12:52,041 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 20:12:52,041 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 20:12:52,042 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-24 20:12:52,042 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 20:12:52,042 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery
[2020-09-24 20:12:52,042 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 20:12:52,042 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base
[2020-09-24 20:12:52,043 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 20:12:52,043 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 20:12:52,043 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 20:12:52,043 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 20:12:52,043 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 20:12:52,044 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-24 20:12:52,044 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 20:12:52,044 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 20:12:52,044 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 20:12:52,044 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 20:12:52,045 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 20:12:52,045 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 20:12:52,045 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 20:12:52,045 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 20:12:52,045 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 20:12:52,045 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 20:12:52,046 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 20:12:52,046 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 20:12:52,046 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 20:12:52,046 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 20:12:52,046 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 20:12:52,046 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 20:12:52,046 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 20:12:52,047 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 20:12:52,047 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 20:12:52,047 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 20:12:52,047 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 20:12:52,047 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 20:12:52,047 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 20:12:52,048 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 20:12:52,048 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 20:12:52,048 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 20:12:52,048 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 20:12:52,048 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 20:12:52,048 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 20:12:52,048 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-24 20:12:52,049 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 20:12:52,049 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 20:12:52,049 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 20:12:52,049 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 20:12:52,049 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 20:12:52,050 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 20:12:52,050 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-24 20:12:52,050 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 20:12:52,050 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery
[2020-09-24 20:12:52,050 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 20:12:52,050 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base
[2020-09-24 20:12:52,051 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 20:12:52,051 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 20:12:52,051 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 20:12:52,051 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 20:12:52,051 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 20:12:52,051 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 20:12:52,052 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 20:12:52,052 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 20:12:52,052 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 20:12:52,052 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 20:12:52,052 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 20:12:52,052 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 20:12:52,053 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 20:12:52,053 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 20:12:52,053 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 20:12:52,053 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 20:12:52,053 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 20:12:52,053 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 20:12:52,054 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 20:12:52,054 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 20:12:52,054 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 20:12:52,054 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 20:12:52,054 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 20:12:52,054 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 20:12:52,054 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 20:12:52,055 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 20:12:52,055 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 20:12:52,055 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 20:12:53,214 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 20:12:53,215 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 20:12:53,222 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:12:53 BoogieIcfgContainer
[2020-09-24 20:12:53,223 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 20:12:53,224 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 20:12:53,224 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 20:12:53,228 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 20:12:53,229 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:12:51" (1/3) ...
[2020-09-24 20:12:53,230 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bc2aed2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:12:53, skipping insertion in model container
[2020-09-24 20:12:53,230 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:51" (2/3) ...
[2020-09-24 20:12:53,231 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bc2aed2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:12:53, skipping insertion in model container
[2020-09-24 20:12:53,231 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:12:53" (3/3) ...
[2020-09-24 20:12:53,233 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product14.cil.c
[2020-09-24 20:12:53,247 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 20:12:53,260 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 20:12:53,286 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 20:12:53,323 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 20:12:53,323 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 20:12:53,323 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 20:12:53,323 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 20:12:53,323 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 20:12:53,324 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 20:12:53,324 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 20:12:53,324 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 20:12:53,364 INFO  L276                IsEmpty]: Start isEmpty. Operand 289 states.
[2020-09-24 20:12:53,398 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-24 20:12:53,398 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 20:12:53,400 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 20:12:53,400 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 20:12:53,409 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 20:12:53,410 INFO  L82        PathProgramCache]: Analyzing trace with hash -1270586299, now seen corresponding path program 1 times
[2020-09-24 20:12:53,423 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 20:12:53,423 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [401715727]
[2020-09-24 20:12:53,424 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 20:12:53,859 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:54,008 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:54,193 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:55,770 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:58,871 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:58,872 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-24 20:12:58,872 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 20:12:58,872 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5000
[2020-09-24 20:12:58,878 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:58,879 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-24 20:12:58,879 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 81
[2020-09-24 20:12:58,879 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 89
[2020-09-24 20:12:58,879 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 6
[2020-09-24 20:12:59,311 WARN  L193               SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 20:12:59,314 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 20:12:59,368 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:59,416 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:59,680 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:59,681 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 20:12:59,681 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:59,681 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 309
[2020-09-24 20:12:59,689 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:59,689 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:12:59,689 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:12:59,689 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 77
[2020-09-24 20:12:59,690 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:12:59,775 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 20:12:59,776 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:59,780 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:59,788 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:59,788 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:12:59,788 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:59,789 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-24 20:12:59,789 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:59,789 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:12:59,789 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:12:59,790 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 20:12:59,790 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:12:59,793 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 20:12:59,795 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:59,796 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:59,800 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:59,800 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:12:59,800 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:59,801 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 20:12:59,801 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:59,801 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:12:59,801 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:12:59,802 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 20:12:59,802 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:12:59,804 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 20:12:59,806 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:59,808 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:59,818 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:59,818 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:12:59,818 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:59,819 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-24 20:12:59,819 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:59,819 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:12:59,819 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:12:59,820 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 20:12:59,820 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:12:59,823 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 20:12:59,825 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:59,827 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:59,830 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:59,831 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:12:59,831 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:59,831 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 20:12:59,831 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:59,832 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:12:59,832 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:12:59,833 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 20:12:59,833 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:12:59,836 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-24 20:12:59,838 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:59,841 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:59,845 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:59,846 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:12:59,846 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:59,846 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 20:12:59,847 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:59,847 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:12:59,847 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:12:59,847 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 20:12:59,848 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:12:59,850 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-24 20:12:59,851 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:59,853 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:59,861 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:59,862 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:12:59,862 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:59,862 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-24 20:12:59,863 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:59,864 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 20:12:59,865 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:12:59,865 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 20:12:59,865 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-24 20:12:59,901 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-24 20:12:59,903 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:59,905 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:59,907 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:59,908 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:12:59,908 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:59,908 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 20:12:59,908 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:59,908 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:12:59,909 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 20:12:59,909 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:12:59,909 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:12:59,949 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 20:12:59,950 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [401715727]
[2020-09-24 20:12:59,952 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 20:12:59,953 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-24 20:12:59,954 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554502690]
[2020-09-24 20:12:59,964 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-24 20:12:59,964 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 20:12:59,983 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-24 20:12:59,984 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-24 20:12:59,987 INFO  L87              Difference]: Start difference. First operand 289 states. Second operand 8 states.
[2020-09-24 20:13:00,632 WARN  L193               SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 20:13:02,280 WARN  L193               SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 20:13:02,645 WARN  L193               SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 20:13:03,058 WARN  L193               SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 20:13:03,462 WARN  L193               SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 20:13:03,801 WARN  L193               SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 20:13:04,121 WARN  L193               SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 20:13:04,443 WARN  L193               SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 20:13:05,553 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 20:13:05,553 INFO  L93              Difference]: Finished difference Result 550 states and 682 transitions.
[2020-09-24 20:13:05,554 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-24 20:13:05,556 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 153
[2020-09-24 20:13:05,557 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 20:13:05,596 INFO  L225             Difference]: With dead ends: 550
[2020-09-24 20:13:05,600 INFO  L226             Difference]: Without dead ends: 382
[2020-09-24 20:13:05,612 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2020-09-24 20:13:05,637 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 382 states.
[2020-09-24 20:13:05,743 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 338.
[2020-09-24 20:13:05,745 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 338 states.
[2020-09-24 20:13:05,748 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 382 transitions.
[2020-09-24 20:13:05,751 INFO  L78                 Accepts]: Start accepts. Automaton has 338 states and 382 transitions. Word has length 153
[2020-09-24 20:13:05,752 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 20:13:05,752 INFO  L479      AbstractCegarLoop]: Abstraction has 338 states and 382 transitions.
[2020-09-24 20:13:05,752 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-24 20:13:05,752 INFO  L276                IsEmpty]: Start isEmpty. Operand 338 states and 382 transitions.
[2020-09-24 20:13:05,757 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 173
[2020-09-24 20:13:05,757 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 20:13:05,757 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 20:13:05,758 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 20:13:05,758 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 20:13:05,758 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 20:13:05,758 INFO  L82        PathProgramCache]: Analyzing trace with hash 1247171363, now seen corresponding path program 1 times
[2020-09-24 20:13:05,759 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 20:13:05,759 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [320885993]
[2020-09-24 20:13:05,759 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 20:13:05,819 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:05,882 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:06,189 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:06,189 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 207
[2020-09-24 20:13:06,189 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:06,189 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 367
[2020-09-24 20:13:06,190 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:06,190 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:13:06,190 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 153
[2020-09-24 20:13:06,190 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-24 20:13:06,191 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:13:06,471 WARN  L193               SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 20:13:06,472 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 20:13:06,479 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:06,489 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:06,625 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:06,625 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 20:13:06,626 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:06,626 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 144
[2020-09-24 20:13:06,626 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:06,626 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:13:06,626 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:13:06,627 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:13:06,627 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:13:06,658 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 20:13:06,659 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:06,660 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:06,662 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:06,662 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:13:06,663 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:06,663 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 20:13:06,663 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:06,663 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:13:06,663 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:13:06,664 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:13:06,664 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:13:06,665 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 20:13:06,666 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:06,667 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:06,668 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:06,669 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:13:06,669 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:06,669 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 20:13:06,669 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:06,670 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:13:06,670 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:13:06,670 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:13:06,670 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:13:06,671 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 20:13:06,672 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:06,673 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:06,677 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:06,678 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:13:06,678 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:06,678 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 20:13:06,678 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:06,679 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:13:06,679 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:13:06,679 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:13:06,679 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:13:06,681 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 20:13:06,681 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:06,682 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:06,684 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:06,684 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:13:06,684 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:06,684 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 20:13:06,685 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:06,685 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:13:06,685 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:13:06,685 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:13:06,685 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:13:06,693 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116
[2020-09-24 20:13:06,694 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:06,695 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:06,697 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:06,698 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 20:13:06,698 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:06,698 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 20:13:06,698 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:06,698 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:13:06,699 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:13:06,699 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:13:06,699 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:13:06,708 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129
[2020-09-24 20:13:06,710 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:06,711 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:06,714 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:06,714 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-24 20:13:06,715 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:06,715 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 20:13:06,715 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:06,715 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:13:06,716 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:13:06,716 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-24 20:13:06,716 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:13:06,718 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140
[2020-09-24 20:13:06,719 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:06,721 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:06,722 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:06,723 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:13:06,723 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:06,723 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 20:13:06,723 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:06,723 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:13:06,724 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 20:13:06,724 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:13:06,724 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:13:06,726 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150
[2020-09-24 20:13:06,726 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:06,728 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:06,729 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:06,730 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:13:06,730 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:06,730 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 20:13:06,730 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:06,731 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:13:06,731 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 20:13:06,731 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:13:06,731 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:13:06,733 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160
[2020-09-24 20:13:06,734 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:06,735 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:06,737 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:06,737 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:13:06,737 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:06,737 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 20:13:06,738 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:06,738 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:13:06,738 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 20:13:06,738 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:13:06,739 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:13:06,772 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 20:13:06,773 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [320885993]
[2020-09-24 20:13:06,773 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 20:13:06,774 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-09-24 20:13:06,774 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955232420]
[2020-09-24 20:13:06,776 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-24 20:13:06,776 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 20:13:06,777 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-24 20:13:06,777 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-24 20:13:06,777 INFO  L87              Difference]: Start difference. First operand 338 states and 382 transitions. Second operand 6 states.
[2020-09-24 20:13:07,235 WARN  L193               SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 20:13:08,369 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 20:13:08,369 INFO  L93              Difference]: Finished difference Result 661 states and 822 transitions.
[2020-09-24 20:13:08,369 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2020-09-24 20:13:08,370 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 172
[2020-09-24 20:13:08,371 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 20:13:08,376 INFO  L225             Difference]: With dead ends: 661
[2020-09-24 20:13:08,376 INFO  L226             Difference]: Without dead ends: 433
[2020-09-24 20:13:08,379 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110
[2020-09-24 20:13:08,380 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 433 states.
[2020-09-24 20:13:08,464 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 336.
[2020-09-24 20:13:08,464 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 336 states.
[2020-09-24 20:13:08,469 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 376 transitions.
[2020-09-24 20:13:08,470 INFO  L78                 Accepts]: Start accepts. Automaton has 336 states and 376 transitions. Word has length 172
[2020-09-24 20:13:08,471 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 20:13:08,471 INFO  L479      AbstractCegarLoop]: Abstraction has 336 states and 376 transitions.
[2020-09-24 20:13:08,471 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-09-24 20:13:08,471 INFO  L276                IsEmpty]: Start isEmpty. Operand 336 states and 376 transitions.
[2020-09-24 20:13:08,477 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 181
[2020-09-24 20:13:08,478 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 20:13:08,478 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 20:13:08,479 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 20:13:08,479 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 20:13:08,479 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 20:13:08,480 INFO  L82        PathProgramCache]: Analyzing trace with hash -510510222, now seen corresponding path program 1 times
[2020-09-24 20:13:08,480 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 20:13:08,481 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [894962477]
[2020-09-24 20:13:08,481 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 20:13:08,554 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-24 20:13:08,565 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-24 20:13:08,566 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-24 20:13:08,572 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 20:13:08,610 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 08:13:08 BoogieIcfgContainer
[2020-09-24 20:13:08,611 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 20:13:08,614 INFO  L168              Benchmark]: Toolchain (without parser) took 17442.80 ms. Allocated memory was 144.2 MB in the beginning and 422.6 MB in the end (delta: 278.4 MB). Free memory was 105.9 MB in the beginning and 247.9 MB in the end (delta: -141.9 MB). Peak memory consumption was 136.5 MB. Max. memory is 7.1 GB.
[2020-09-24 20:13:08,615 INFO  L168              Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 144.2 MB. Free memory was 125.7 MB in the beginning and 125.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-24 20:13:08,615 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 668.09 ms. Allocated memory was 144.2 MB in the beginning and 206.6 MB in the end (delta: 62.4 MB). Free memory was 105.3 MB in the beginning and 176.6 MB in the end (delta: -71.3 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB.
[2020-09-24 20:13:08,617 INFO  L168              Benchmark]: Boogie Preprocessor took 119.12 ms. Allocated memory is still 206.6 MB. Free memory was 176.6 MB in the beginning and 172.2 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB.
[2020-09-24 20:13:08,619 INFO  L168              Benchmark]: RCFGBuilder took 1260.39 ms. Allocated memory was 206.6 MB in the beginning and 232.3 MB in the end (delta: 25.7 MB). Free memory was 172.2 MB in the beginning and 169.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 77.1 MB. Max. memory is 7.1 GB.
[2020-09-24 20:13:08,625 INFO  L168              Benchmark]: TraceAbstraction took 15386.55 ms. Allocated memory was 232.3 MB in the beginning and 422.6 MB in the end (delta: 190.3 MB). Free memory was 169.9 MB in the beginning and 247.9 MB in the end (delta: -77.9 MB). Peak memory consumption was 112.4 MB. Max. memory is 7.1 GB.
[2020-09-24 20:13:08,637 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.26 ms. Allocated memory is still 144.2 MB. Free memory was 125.7 MB in the beginning and 125.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 668.09 ms. Allocated memory was 144.2 MB in the beginning and 206.6 MB in the end (delta: 62.4 MB). Free memory was 105.3 MB in the beginning and 176.6 MB in the end (delta: -71.3 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 119.12 ms. Allocated memory is still 206.6 MB. Free memory was 176.6 MB in the beginning and 172.2 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1260.39 ms. Allocated memory was 206.6 MB in the beginning and 232.3 MB in the end (delta: 25.7 MB). Free memory was 172.2 MB in the beginning and 169.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 77.1 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 15386.55 ms. Allocated memory was 232.3 MB in the beginning and 422.6 MB in the end (delta: 190.3 MB). Free memory was 169.9 MB in the beginning and 247.9 MB in the end (delta: -77.9 MB). Peak memory consumption was 112.4 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L131]              int pumpRunning  =    0;
[L132]              int systemActive  =    1;
[L458]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L725]              int cleanupTimeShifts  =    4;
[L821]              int waterLevel  =    1;
[L822]              int methaneLevelCritical  =    0;
[L798]              int retValue_acc ;
[L799]              int tmp ;
[L803]  FCALL       select_helpers()
[L804]  FCALL       select_features()
[L805]  CALL, EXPR  valid_product()
[L78]               int retValue_acc ;
[L81]               retValue_acc = 1
[L82]               return (retValue_acc);
[L805]  RET, EXPR   valid_product()
[L805]              tmp = valid_product()
[L807]  COND TRUE   \read(tmp)
[L809]  FCALL       setup()
[L810]  CALL        runTest()
[L792]  CALL        test()
[L659]              int splverifierCounter ;
[L660]              int tmp ;
[L661]              int tmp___0 ;
[L662]              int tmp___1 ;
[L663]              int tmp___2 ;
[L666]              splverifierCounter = 0
[L668]  COND TRUE   1
[L670]  COND TRUE   splverifierCounter < 4
[L676]              tmp = __VERIFIER_nondet_int()
[L678]  COND TRUE   \read(tmp)
[L680]  CALL        waterRise()
[L839]  COND TRUE   waterLevel < 2
[L840]              waterLevel = waterLevel + 1
[L680]  RET         waterRise()
[L686]              tmp___0 = __VERIFIER_nondet_int()
[L688]  COND FALSE  !(\read(tmp___0))
[L696]              tmp___2 = __VERIFIER_nondet_int()
[L698]  COND TRUE   \read(tmp___2)
[L700]  CALL        startSystem()
[L284]              systemActive = 1
[L700]  RET         startSystem()
[L713]  CALL        timeShift()
[L138]  COND FALSE  !(\read(pumpRunning))
[L145]  COND TRUE   \read(systemActive)
[L147]  CALL        processEnvironment()
[L167]              int tmp ;
[L170]  COND FALSE  !(\read(pumpRunning))
[L185]  FCALL       processEnvironment__wrappee__methaneQuery()
[L147]  RET         processEnvironment()
[L153]  CALL        __utac_acc__Specification3_spec__1()
[L91]               int tmp ;
[L92]               int tmp___0 ;
[L93]               int tmp___1 ;
[L97]   CALL, EXPR  isMethaneLevelCritical()
[L860]              int retValue_acc ;
[L863]              retValue_acc = methaneLevelCritical
[L864]              return (retValue_acc);
[L97]   RET, EXPR   isMethaneLevelCritical()
[L97]               tmp = isMethaneLevelCritical()
[L99]   COND FALSE  !(\read(tmp))
[L103]  CALL, EXPR  getWaterLevel()
[L892]              int retValue_acc ;
[L895]              retValue_acc = waterLevel
[L896]              return (retValue_acc);
[L103]  RET, EXPR   getWaterLevel()
[L103]              tmp___0 = getWaterLevel()
[L105]  COND TRUE   tmp___0 == 2
[L107]  CALL, EXPR  isPumpRunning()
[L236]              int retValue_acc ;
[L239]              retValue_acc = pumpRunning
[L240]              return (retValue_acc);
[L107]  RET, EXPR   isPumpRunning()
[L107]              tmp___1 = isPumpRunning()
[L109]  COND FALSE  !(\read(tmp___1))
[L113]  CALL        __automaton_fail()
[L44]               __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 37 procedures, 603 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 15.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 7.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 452 SDtfs, 1078 SDslu, 731 SDs, 0 SdLazy, 1333 SolverSat, 383 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=338occurred 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: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 141 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 6.9s InterpolantComputationTime, 505 NumberOfCodeBlocks, 505 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 323 ConstructedInterpolants, 0 QuantifiedInterpolants, 127832 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...