/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=WIDEST --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_product15.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 02:58:36,003 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 02:58:36,007 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 02:58:36,051 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 02:58:36,052 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 02:58:36,060 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 02:58:36,062 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 02:58:36,066 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 02:58:36,068 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 02:58:36,071 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 02:58:36,071 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 02:58:36,072 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 02:58:36,073 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 02:58:36,075 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 02:58:36,078 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 02:58:36,079 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 02:58:36,081 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 02:58:36,082 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 02:58:36,083 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 02:58:36,091 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 02:58:36,093 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 02:58:36,094 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 02:58:36,095 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 02:58:36,096 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 02:58:36,108 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 02:58:36,108 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 02:58:36,108 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 02:58:36,114 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 02:58:36,115 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 02:58:36,116 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 02:58:36,118 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 02:58:36,119 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 02:58:36,119 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 02:58:36,123 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 02:58:36,124 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 02:58:36,124 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 02:58:36,125 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 02:58:36,125 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 02:58:36,125 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 02:58:36,127 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 02:58:36,127 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 02:58:36,128 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
[2020-09-25 02:58:36,176 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 02:58:36,177 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 02:58:36,179 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 02:58:36,180 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 02:58:36,180 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 02:58:36,180 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 02:58:36,180 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 02:58:36,181 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 02:58:36,181 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 02:58:36,181 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 02:58:36,182 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 02:58:36,182 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 02:58:36,183 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 02:58:36,183 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 02:58:36,183 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 02:58:36,183 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 02:58:36,184 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 02:58:36,184 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 02:58:36,184 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 02:58:36,184 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 02:58:36,184 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 02:58:36,185 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 02:58:36,185 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 02:58:36,185 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 02:58:36,185 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 02:58:36,185 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 02:58:36,186 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 02:58:36,186 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 02:58:36,186 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 02:58:36,186 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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;log-additional-information=true;
[2020-09-25 02:58:36,636 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 02:58:36,660 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 02:58:36,671 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 02:58:36,674 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 02:58:36,674 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 02:58:36,675 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product15.cil.c
[2020-09-25 02:58:36,773 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4b4d7e7bb/c9cb29e1b5354c9aac3e3b2a56919e33/FLAG2a3dabb6b
[2020-09-25 02:58:37,399 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 02:58:37,400 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product15.cil.c
[2020-09-25 02:58:37,417 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4b4d7e7bb/c9cb29e1b5354c9aac3e3b2a56919e33/FLAG2a3dabb6b
[2020-09-25 02:58:37,685 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4b4d7e7bb/c9cb29e1b5354c9aac3e3b2a56919e33
[2020-09-25 02:58:37,699 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 02:58:37,704 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 02:58:37,705 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 02:58:37,705 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 02:58:37,711 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 02:58:37,712 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:58:37" (1/1) ...
[2020-09-25 02:58:37,715 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12a11f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:37, skipping insertion in model container
[2020-09-25 02:58:37,716 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:58:37" (1/1) ...
[2020-09-25 02:58:37,724 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 02:58:37,797 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 02:58:38,176 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 02:58:38,192 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 02:58:38,364 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 02:58:38,408 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 02:58:38,409 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:38 WrapperNode
[2020-09-25 02:58:38,409 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 02:58:38,410 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 02:58:38,411 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 02:58:38,411 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 02:58:38,434 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:38" (1/1) ...
[2020-09-25 02:58:38,435 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:38" (1/1) ...
[2020-09-25 02:58:38,468 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:38" (1/1) ...
[2020-09-25 02:58:38,469 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:38" (1/1) ...
[2020-09-25 02:58:38,506 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:38" (1/1) ...
[2020-09-25 02:58:38,517 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:38" (1/1) ...
[2020-09-25 02:58:38,523 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:38" (1/1) ...
[2020-09-25 02:58:38,531 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 02:58:38,532 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 02:58:38,532 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 02:58:38,532 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 02:58:38,533 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:38" (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
[2020-09-25 02:58:38,629 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 02:58:38,630 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 02:58:38,630 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 02:58:38,630 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 02:58:38,630 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery
[2020-09-25 02:58:38,631 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 02:58:38,631 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base
[2020-09-25 02:58:38,631 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 02:58:38,633 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 02:58:38,633 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 02:58:38,633 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 02:58:38,633 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 02:58:38,633 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-25 02:58:38,634 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 02:58:38,634 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 02:58:38,635 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 02:58:38,635 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 02:58:38,635 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 02:58:38,635 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 02:58:38,636 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 02:58:38,636 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 02:58:38,636 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 02:58:38,637 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 02:58:38,637 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 02:58:38,637 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 02:58:38,638 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 02:58:38,638 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 02:58:38,638 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 02:58:38,638 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 02:58:38,638 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 02:58:38,638 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 02:58:38,639 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 02:58:38,639 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 02:58:38,639 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 02:58:38,639 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 02:58:38,639 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 02:58:38,639 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 02:58:38,640 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 02:58:38,640 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 02:58:38,640 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 02:58:38,640 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 02:58:38,640 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 02:58:38,640 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 02:58:38,641 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 02:58:38,641 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 02:58:38,641 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 02:58:38,641 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 02:58:38,641 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 02:58:38,641 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-25 02:58:38,642 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 02:58:38,642 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 02:58:38,642 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery
[2020-09-25 02:58:38,642 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 02:58:38,643 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base
[2020-09-25 02:58:38,643 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 02:58:38,643 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 02:58:38,643 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 02:58:38,643 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 02:58:38,644 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 02:58:38,644 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 02:58:38,644 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 02:58:38,644 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 02:58:38,644 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 02:58:38,644 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 02:58:38,644 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 02:58:38,645 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 02:58:38,645 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 02:58:38,645 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 02:58:38,645 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 02:58:38,645 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 02:58:38,646 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 02:58:38,647 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 02:58:38,647 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 02:58:38,648 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 02:58:38,648 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 02:58:38,648 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 02:58:38,648 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 02:58:38,648 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 02:58:38,648 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 02:58:38,648 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 02:58:38,649 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 02:58:38,649 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 02:58:38,650 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 02:58:38,650 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 02:58:38,650 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 02:58:38,650 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 02:58:38,650 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 02:58:38,650 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 02:58:39,775 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 02:58:39,776 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 02:58:39,783 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:58:39 BoogieIcfgContainer
[2020-09-25 02:58:39,783 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 02:58:39,785 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 02:58:39,785 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 02:58:39,789 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 02:58:39,789 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:58:37" (1/3) ...
[2020-09-25 02:58:39,790 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@733f1fa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:58:39, skipping insertion in model container
[2020-09-25 02:58:39,790 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:38" (2/3) ...
[2020-09-25 02:58:39,791 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@733f1fa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:58:39, skipping insertion in model container
[2020-09-25 02:58:39,791 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:58:39" (3/3) ...
[2020-09-25 02:58:39,793 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product15.cil.c
[2020-09-25 02:58:39,805 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 02:58:39,816 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 02:58:39,836 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 02:58:39,864 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 02:58:39,865 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 02:58:39,865 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 02:58:39,865 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 02:58:39,865 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 02:58:39,865 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 02:58:39,865 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 02:58:39,866 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 02:58:39,890 INFO  L276                IsEmpty]: Start isEmpty. Operand 291 states.
[2020-09-25 02:58:39,906 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 02:58:39,907 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 02:58:39,908 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]
[2020-09-25 02:58:39,909 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 02:58:39,916 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 02:58:39,916 INFO  L82        PathProgramCache]: Analyzing trace with hash -572002072, now seen corresponding path program 1 times
[2020-09-25 02:58:39,925 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 02:58:39,925 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [813043077]
[2020-09-25 02:58:39,926 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 02:58:40,267 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:40,458 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:40,655 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:42,121 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:45,306 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:45,306 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 02:58:45,307 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 02:58:45,307 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5029
[2020-09-25 02:58:45,310 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:45,311 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 02:58:45,311 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 80
[2020-09-25 02:58:45,311 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 90
[2020-09-25 02:58:45,311 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-25 02:58:45,820 WARN  L193               SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 02:58:45,823 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 02:58:45,872 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:45,924 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:46,190 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:46,190 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 02:58:46,190 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:46,191 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 316
[2020-09-25 02:58:46,191 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:46,191 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:58:46,192 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:46,192 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 76
[2020-09-25 02:58:46,192 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:58:46,262 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 02:58:46,263 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:46,265 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:46,269 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:46,269 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:58:46,270 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:46,270 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 02:58:46,270 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:46,270 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:58:46,271 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:46,271 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 02:58:46,271 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:58:46,273 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 02:58:46,275 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:46,276 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:46,280 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:46,280 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:58:46,280 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:46,281 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 02:58:46,281 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:46,281 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:58:46,281 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:46,282 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 02:58:46,282 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:58:46,283 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 02:58:46,285 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:46,287 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:46,294 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:46,294 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:58:46,294 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:46,294 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 02:58:46,295 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:46,295 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:58:46,295 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:46,295 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 02:58:46,295 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:58:46,298 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 02:58:46,299 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:46,300 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:46,304 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:46,304 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:58:46,304 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:46,305 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 02:58:46,305 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:46,305 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:58:46,305 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:46,305 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 02:58:46,306 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:58:46,307 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 02:58:46,308 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:46,310 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:46,314 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:46,314 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:58:46,315 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:46,315 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 02:58:46,315 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:46,315 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:58:46,316 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:46,316 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 02:58:46,316 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:58:46,318 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 02:58:46,320 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:46,322 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:46,331 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:46,332 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:58:46,332 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:46,332 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-25 02:58:46,332 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:46,333 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 02:58:46,333 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:46,333 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 02:58:46,333 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:58:46,365 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 02:58:46,367 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:46,368 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:46,370 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:46,371 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:58:46,371 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:46,371 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 02:58:46,372 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:46,372 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:58:46,372 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 02:58:46,372 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:58:46,372 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:58:46,435 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 02:58:46,436 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [813043077]
[2020-09-25 02:58:46,439 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 02:58:46,439 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-25 02:58:46,440 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891536503]
[2020-09-25 02:58:46,453 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-25 02:58:46,455 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 02:58:46,474 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-25 02:58:46,477 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-25 02:58:46,481 INFO  L87              Difference]: Start difference. First operand 291 states. Second operand 8 states.
[2020-09-25 02:58:47,151 WARN  L193               SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 02:58:48,718 WARN  L193               SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 02:58:49,146 WARN  L193               SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 02:58:49,557 WARN  L193               SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 02:58:49,968 WARN  L193               SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 02:58:50,304 WARN  L193               SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 02:58:50,874 WARN  L193               SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 02:58:51,188 WARN  L193               SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 02:58:52,278 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 02:58:52,279 INFO  L93              Difference]: Finished difference Result 561 states and 704 transitions.
[2020-09-25 02:58:52,282 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-25 02:58:52,284 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 153
[2020-09-25 02:58:52,285 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 02:58:52,306 INFO  L225             Difference]: With dead ends: 561
[2020-09-25 02:58:52,306 INFO  L226             Difference]: Without dead ends: 374
[2020-09-25 02:58:52,314 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2020-09-25 02:58:52,334 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 374 states.
[2020-09-25 02:58:52,437 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 328.
[2020-09-25 02:58:52,439 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 328 states.
[2020-09-25 02:58:52,441 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 366 transitions.
[2020-09-25 02:58:52,444 INFO  L78                 Accepts]: Start accepts. Automaton has 328 states and 366 transitions. Word has length 153
[2020-09-25 02:58:52,445 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 02:58:52,445 INFO  L479      AbstractCegarLoop]: Abstraction has 328 states and 366 transitions.
[2020-09-25 02:58:52,446 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-25 02:58:52,446 INFO  L276                IsEmpty]: Start isEmpty. Operand 328 states and 366 transitions.
[2020-09-25 02:58:52,451 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 169
[2020-09-25 02:58:52,451 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 02:58:52,452 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]
[2020-09-25 02:58:52,452 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 02:58:52,452 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 02:58:52,453 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 02:58:52,453 INFO  L82        PathProgramCache]: Analyzing trace with hash 876886047, now seen corresponding path program 1 times
[2020-09-25 02:58:52,453 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 02:58:52,454 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1736251711]
[2020-09-25 02:58:52,454 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 02:58:52,510 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:52,569 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:53,888 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:53,888 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 201
[2020-09-25 02:58:53,889 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:53,889 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1375
[2020-09-25 02:58:53,889 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:53,889 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 02:58:53,889 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 78
[2020-09-25 02:58:53,891 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 77
[2020-09-25 02:58:53,891 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 02:58:54,195 WARN  L193               SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 02:58:54,196 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 02:58:54,236 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:54,277 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:54,529 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:54,529 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 02:58:54,530 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:54,530 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 292
[2020-09-25 02:58:54,530 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:54,530 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:58:54,530 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:54,531 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 74
[2020-09-25 02:58:54,531 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:58:54,575 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 02:58:54,577 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:54,578 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:54,581 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:54,581 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:58:54,582 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:54,582 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 02:58:54,582 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:54,582 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:58:54,582 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:54,583 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 02:58:54,583 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:58:54,584 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 02:58:54,586 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:54,587 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:54,590 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:54,590 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:58:54,590 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:54,591 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 02:58:54,591 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:54,591 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:58:54,591 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:54,591 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 02:58:54,592 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:58:54,593 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 02:58:54,595 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:54,596 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:54,604 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:54,605 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:58:54,605 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:54,605 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-25 02:58:54,605 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:54,606 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:58:54,606 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:54,606 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 02:58:54,606 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:58:54,608 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 02:58:54,609 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:54,611 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:54,613 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:54,614 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:58:54,614 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:54,614 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 02:58:54,614 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:54,615 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:58:54,615 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:54,615 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 02:58:54,615 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:58:54,624 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116
[2020-09-25 02:58:54,625 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:54,627 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:54,633 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:54,633 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 02:58:54,634 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:54,634 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 02:58:54,634 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:54,634 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:58:54,634 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:54,635 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 02:58:54,635 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:58:54,637 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136
[2020-09-25 02:58:54,638 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:54,639 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:54,641 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:54,641 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:58:54,641 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:54,642 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 02:58:54,642 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:54,642 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:58:54,642 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 02:58:54,642 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:58:54,643 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:58:54,644 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146
[2020-09-25 02:58:54,645 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:54,647 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:54,648 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:54,649 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:58:54,649 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:54,649 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 02:58:54,649 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:54,649 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:58:54,650 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 02:58:54,650 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:58:54,650 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:58:54,652 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156
[2020-09-25 02:58:54,653 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:54,654 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:54,656 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:54,656 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:58:54,656 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:54,657 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 02:58:54,657 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:54,657 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:58:54,657 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 02:58:54,658 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:58:54,658 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:58:54,692 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 02:58:54,692 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1736251711]
[2020-09-25 02:58:54,693 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 02:58:54,693 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 02:58:54,693 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337480050]
[2020-09-25 02:58:54,695 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 02:58:54,696 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 02:58:54,696 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 02:58:54,696 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-25 02:58:54,697 INFO  L87              Difference]: Start difference. First operand 328 states and 366 transitions. Second operand 5 states.
[2020-09-25 02:58:55,181 WARN  L193               SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 02:58:57,201 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 02:58:57,202 INFO  L93              Difference]: Finished difference Result 894 states and 1091 transitions.
[2020-09-25 02:58:57,203 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-09-25 02:58:57,203 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 168
[2020-09-25 02:58:57,204 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 02:58:57,213 INFO  L225             Difference]: With dead ends: 894
[2020-09-25 02:58:57,213 INFO  L226             Difference]: Without dead ends: 676
[2020-09-25 02:58:57,217 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-09-25 02:58:57,218 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 676 states.
[2020-09-25 02:58:57,331 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 547.
[2020-09-25 02:58:57,331 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 547 states.
[2020-09-25 02:58:57,335 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 629 transitions.
[2020-09-25 02:58:57,335 INFO  L78                 Accepts]: Start accepts. Automaton has 547 states and 629 transitions. Word has length 168
[2020-09-25 02:58:57,336 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 02:58:57,336 INFO  L479      AbstractCegarLoop]: Abstraction has 547 states and 629 transitions.
[2020-09-25 02:58:57,336 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 02:58:57,337 INFO  L276                IsEmpty]: Start isEmpty. Operand 547 states and 629 transitions.
[2020-09-25 02:58:57,341 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 177
[2020-09-25 02:58:57,342 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 02:58:57,342 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]
[2020-09-25 02:58:57,342 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 02:58:57,342 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 02:58:57,343 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 02:58:57,343 INFO  L82        PathProgramCache]: Analyzing trace with hash 942920496, now seen corresponding path program 1 times
[2020-09-25 02:58:57,343 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 02:58:57,344 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1820480937]
[2020-09-25 02:58:57,344 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 02:58:57,403 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 02:58:57,411 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 02:58:57,412 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 02:58:57,417 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 02:58:57,444 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:58:57 BoogieIcfgContainer
[2020-09-25 02:58:57,444 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 02:58:57,447 INFO  L168              Benchmark]: Toolchain (without parser) took 19745.99 ms. Allocated memory was 141.0 MB in the beginning and 518.5 MB in the end (delta: 377.5 MB). Free memory was 101.6 MB in the beginning and 161.0 MB in the end (delta: -59.3 MB). Peak memory consumption was 318.1 MB. Max. memory is 7.1 GB.
[2020-09-25 02:58:57,448 INFO  L168              Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-09-25 02:58:57,449 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 704.41 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 100.9 MB in the beginning and 174.8 MB in the end (delta: -73.9 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB.
[2020-09-25 02:58:57,450 INFO  L168              Benchmark]: Boogie Preprocessor took 121.40 ms. Allocated memory is still 204.5 MB. Free memory was 174.8 MB in the beginning and 170.2 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB.
[2020-09-25 02:58:57,451 INFO  L168              Benchmark]: RCFGBuilder took 1251.82 ms. Allocated memory was 204.5 MB in the beginning and 235.4 MB in the end (delta: 30.9 MB). Free memory was 170.2 MB in the beginning and 178.4 MB in the end (delta: -8.1 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB.
[2020-09-25 02:58:57,452 INFO  L168              Benchmark]: TraceAbstraction took 17659.61 ms. Allocated memory was 235.4 MB in the beginning and 518.5 MB in the end (delta: 283.1 MB). Free memory was 177.0 MB in the beginning and 161.0 MB in the end (delta: 16.0 MB). Peak memory consumption was 299.1 MB. Max. memory is 7.1 GB.
[2020-09-25 02:58:57,456 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.23 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 704.41 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 100.9 MB in the beginning and 174.8 MB in the end (delta: -73.9 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 121.40 ms. Allocated memory is still 204.5 MB. Free memory was 174.8 MB in the beginning and 170.2 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1251.82 ms. Allocated memory was 204.5 MB in the beginning and 235.4 MB in the end (delta: 30.9 MB). Free memory was 170.2 MB in the beginning and 178.4 MB in the end (delta: -8.1 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 17659.61 ms. Allocated memory was 235.4 MB in the beginning and 518.5 MB in the end (delta: 283.1 MB). Free memory was 177.0 MB in the beginning and 161.0 MB in the end (delta: 16.0 MB). Peak memory consumption was 299.1 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 870]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L49]               int pumpRunning  =    0;
[L50]               int systemActive  =    1;
[L454]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L652]              int waterLevel  =    1;
[L653]              int methaneLevelCritical  =    0;
[L732]              int cleanupTimeShifts  =    4;
[L808]              int retValue_acc ;
[L809]              int tmp ;
[L813]  FCALL       select_helpers()
[L814]  FCALL       select_features()
[L815]  CALL, EXPR  valid_product()
[L901]              int retValue_acc ;
[L904]              retValue_acc = 1
[L905]              return (retValue_acc);
[L815]  RET, EXPR   valid_product()
[L815]              tmp = valid_product()
[L817]  COND TRUE   \read(tmp)
[L819]  FCALL       setup()
[L820]  CALL        runTest()
[L799]  CALL        test()
[L219]              int splverifierCounter ;
[L220]              int tmp ;
[L221]              int tmp___0 ;
[L222]              int tmp___1 ;
[L223]              int tmp___2 ;
[L226]              splverifierCounter = 0
[L228]  COND TRUE   1
[L230]  COND TRUE   splverifierCounter < 4
[L236]              tmp = __VERIFIER_nondet_int()
[L238]  COND TRUE   \read(tmp)
[L240]  CALL        waterRise()
[L670]  COND TRUE   waterLevel < 2
[L671]              waterLevel = waterLevel + 1
[L240]  RET         waterRise()
[L246]              tmp___0 = __VERIFIER_nondet_int()
[L248]  COND FALSE  !(\read(tmp___0))
[L256]              tmp___2 = __VERIFIER_nondet_int()
[L258]  COND TRUE   \read(tmp___2)
[L273]  CALL        timeShift()
[L57]   COND FALSE  !(\read(pumpRunning))
[L64]   COND TRUE   \read(systemActive)
[L66]   CALL        processEnvironment()
[L86]               int tmp ;
[L89]   COND FALSE  !(\read(pumpRunning))
[L104]  FCALL       processEnvironment__wrappee__methaneQuery()
[L66]   RET         processEnvironment()
[L72]   CALL        __utac_acc__Specification3_spec__1()
[L833]              int tmp ;
[L834]              int tmp___0 ;
[L835]              int tmp___1 ;
[L839]  CALL, EXPR  isMethaneLevelCritical()
[L691]              int retValue_acc ;
[L694]              retValue_acc = methaneLevelCritical
[L695]              return (retValue_acc);
[L839]  RET, EXPR   isMethaneLevelCritical()
[L839]              tmp = isMethaneLevelCritical()
[L841]  COND FALSE  !(\read(tmp))
[L845]  CALL, EXPR  getWaterLevel()
[L723]              int retValue_acc ;
[L726]              retValue_acc = waterLevel
[L727]              return (retValue_acc);
[L845]  RET, EXPR   getWaterLevel()
[L845]              tmp___0 = getWaterLevel()
[L847]  COND TRUE   tmp___0 == 2
[L849]  CALL, EXPR  isPumpRunning()
[L155]              int retValue_acc ;
[L158]              retValue_acc = pumpRunning
[L159]              return (retValue_acc);
[L849]  RET, EXPR   isPumpRunning()
[L849]              tmp___1 = isPumpRunning()
[L851]  COND FALSE  !(\read(tmp___1))
[L855]  CALL        __automaton_fail()
[L870]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 37 procedures, 605 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 8.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 496 SDtfs, 753 SDslu, 731 SDs, 0 SdLazy, 1558 SolverSat, 272 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=547occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 175 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 8.2s InterpolantComputationTime, 497 NumberOfCodeBlocks, 497 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 319 ConstructedInterpolants, 0 QuantifiedInterpolants, 138354 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...