/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 --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_product16.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 09:48:52,679 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 09:48:52,684 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 09:48:52,728 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 09:48:52,728 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 09:48:52,736 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 09:48:52,739 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 09:48:52,743 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 09:48:52,745 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 09:48:52,750 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 09:48:52,751 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 09:48:52,752 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 09:48:52,752 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 09:48:52,755 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 09:48:52,757 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 09:48:52,760 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 09:48:52,762 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 09:48:52,764 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 09:48:52,765 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 09:48:52,774 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 09:48:52,776 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 09:48:52,777 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 09:48:52,778 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 09:48:52,779 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 09:48:52,791 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 09:48:52,792 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 09:48:52,792 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 09:48:52,798 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 09:48:52,799 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 09:48:52,800 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 09:48:52,800 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 09:48:52,806 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 09:48:52,807 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 09:48:52,808 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 09:48:52,809 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 09:48:52,809 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 09:48:52,810 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 09:48:52,810 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 09:48:52,811 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 09:48:52,812 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 09:48:52,813 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 09:48:52,813 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 09:48:52,861 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 09:48:52,861 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 09:48:52,863 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 09:48:52,864 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 09:48:52,864 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 09:48:52,864 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 09:48:52,864 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 09:48:52,865 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 09:48:52,865 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 09:48:52,865 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 09:48:52,866 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 09:48:52,866 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 09:48:52,867 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 09:48:52,867 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 09:48:52,867 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 09:48:52,867 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 09:48:52,868 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 09:48:52,868 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 09:48:52,868 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 09:48:52,868 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 09:48:52,868 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 09:48:52,869 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 09:48:52,869 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 09:48:52,869 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 09:48:52,869 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 09:48:52,869 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 09:48:52,870 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 09:48:52,870 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 09:48:52,870 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 09:48:52,870 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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true;
[2020-09-25 09:48:53,347 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 09:48:53,369 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 09:48:53,374 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 09:48:53,376 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 09:48:53,377 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 09:48:53,378 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product16.cil.c
[2020-09-25 09:48:53,452 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2542dde78/83992c44a97747ca8b905d7a719586eb/FLAG0183c257e
[2020-09-25 09:48:54,035 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 09:48:54,036 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product16.cil.c
[2020-09-25 09:48:54,057 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2542dde78/83992c44a97747ca8b905d7a719586eb/FLAG0183c257e
[2020-09-25 09:48:54,326 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2542dde78/83992c44a97747ca8b905d7a719586eb
[2020-09-25 09:48:54,338 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 09:48:54,344 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 09:48:54,345 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 09:48:54,345 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 09:48:54,353 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 09:48:54,355 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:48:54" (1/1) ...
[2020-09-25 09:48:54,360 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a1e51c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:54, skipping insertion in model container
[2020-09-25 09:48:54,360 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:48:54" (1/1) ...
[2020-09-25 09:48:54,372 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 09:48:54,445 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 09:48:54,859 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 09:48:54,884 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 09:48:55,061 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 09:48:55,117 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 09:48:55,118 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:55 WrapperNode
[2020-09-25 09:48:55,118 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 09:48:55,119 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 09:48:55,119 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 09:48:55,119 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 09:48:55,134 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:55" (1/1) ...
[2020-09-25 09:48:55,135 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:55" (1/1) ...
[2020-09-25 09:48:55,156 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:55" (1/1) ...
[2020-09-25 09:48:55,156 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:55" (1/1) ...
[2020-09-25 09:48:55,194 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:55" (1/1) ...
[2020-09-25 09:48:55,205 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:55" (1/1) ...
[2020-09-25 09:48:55,211 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:55" (1/1) ...
[2020-09-25 09:48:55,219 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 09:48:55,220 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 09:48:55,220 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 09:48:55,220 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 09:48:55,221 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:55" (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 09:48:55,314 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 09:48:55,315 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 09:48:55,315 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 09:48:55,315 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 09:48:55,315 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 09:48:55,316 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 09:48:55,316 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 09:48:55,316 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 09:48:55,316 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 09:48:55,316 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 09:48:55,317 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 09:48:55,317 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 09:48:55,317 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 09:48:55,317 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 09:48:55,317 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 09:48:55,318 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 09:48:55,318 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 09:48:55,318 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery
[2020-09-25 09:48:55,318 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 09:48:55,319 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base
[2020-09-25 09:48:55,319 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 09:48:55,319 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 09:48:55,319 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 09:48:55,319 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 09:48:55,319 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 09:48:55,320 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-25 09:48:55,320 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-25 09:48:55,320 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 09:48:55,320 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 09:48:55,320 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 09:48:55,320 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 09:48:55,321 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 09:48:55,321 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 09:48:55,321 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 09:48:55,321 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 09:48:55,321 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 09:48:55,321 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 09:48:55,322 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 09:48:55,322 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 09:48:55,322 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 09:48:55,322 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 09:48:55,322 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 09:48:55,322 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 09:48:55,323 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 09:48:55,323 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 09:48:55,323 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 09:48:55,323 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 09:48:55,323 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 09:48:55,323 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 09:48:55,324 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 09:48:55,324 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 09:48:55,324 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 09:48:55,324 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 09:48:55,324 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 09:48:55,324 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 09:48:55,325 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 09:48:55,325 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 09:48:55,325 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 09:48:55,325 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 09:48:55,325 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 09:48:55,326 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 09:48:55,326 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 09:48:55,326 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 09:48:55,326 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 09:48:55,326 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 09:48:55,326 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 09:48:55,326 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 09:48:55,327 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 09:48:55,327 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 09:48:55,327 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 09:48:55,327 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 09:48:55,327 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 09:48:55,327 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-25 09:48:55,328 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-25 09:48:55,328 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 09:48:55,328 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 09:48:55,328 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 09:48:55,328 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 09:48:55,328 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 09:48:55,329 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 09:48:55,329 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 09:48:55,329 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 09:48:55,329 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery
[2020-09-25 09:48:55,329 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 09:48:55,329 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base
[2020-09-25 09:48:55,330 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 09:48:55,330 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 09:48:55,330 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 09:48:55,330 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 09:48:55,330 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 09:48:56,532 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 09:48:56,532 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 09:48:56,542 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:48:56 BoogieIcfgContainer
[2020-09-25 09:48:56,543 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 09:48:56,544 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 09:48:56,544 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 09:48:56,548 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 09:48:56,548 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:48:54" (1/3) ...
[2020-09-25 09:48:56,549 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@749e0300 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:48:56, skipping insertion in model container
[2020-09-25 09:48:56,550 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:55" (2/3) ...
[2020-09-25 09:48:56,550 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@749e0300 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:48:56, skipping insertion in model container
[2020-09-25 09:48:56,551 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:48:56" (3/3) ...
[2020-09-25 09:48:56,553 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product16.cil.c
[2020-09-25 09:48:56,564 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 09:48:56,578 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 09:48:56,601 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 09:48:56,639 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 09:48:56,639 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 09:48:56,639 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 09:48:56,639 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 09:48:56,639 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 09:48:56,640 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 09:48:56,640 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 09:48:56,640 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 09:48:56,665 INFO  L276                IsEmpty]: Start isEmpty. Operand 295 states.
[2020-09-25 09:48:56,682 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 09:48:56,682 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 09:48:56,684 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 09:48:56,684 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 09:48:56,691 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 09:48:56,691 INFO  L82        PathProgramCache]: Analyzing trace with hash -2058846521, now seen corresponding path program 1 times
[2020-09-25 09:48:56,701 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 09:48:56,701 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1747684681]
[2020-09-25 09:48:56,702 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 09:48:57,080 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:48:57,232 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:48:57,462 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:48:59,009 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:02,093 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:02,093 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 09:49:02,093 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 09:49:02,094 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5000
[2020-09-25 09:49:02,097 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:02,098 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:02,098 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 09:49:02,098 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 81
[2020-09-25 09:49:02,099 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 89
[2020-09-25 09:49:02,099 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-25 09:49:02,572 WARN  L193               SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 09:49:02,579 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 09:49:02,621 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:02,664 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:02,947 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:02,948 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 09:49:02,948 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:02,948 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 325
[2020-09-25 09:49:02,949 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:02,949 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:02,949 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:02,949 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:02,950 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 77
[2020-09-25 09:49:02,950 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:03,030 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 09:49:03,031 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:03,033 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:03,037 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:03,037 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:49:03,037 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:03,037 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 09:49:03,038 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:03,038 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:03,039 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:03,039 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:03,039 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 09:49:03,040 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 09:49:03,042 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 09:49:03,043 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:03,045 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:03,050 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:03,050 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:49:03,051 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:03,051 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 09:49:03,051 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:03,052 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:03,052 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:03,053 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:03,053 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 09:49:03,053 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:03,055 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 09:49:03,057 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:03,059 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:03,069 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:03,070 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:03,070 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:03,070 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-25 09:49:03,070 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:03,071 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:03,071 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:03,071 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:03,071 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 09:49:03,072 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:03,074 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 09:49:03,075 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:03,077 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:03,081 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:03,081 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:49:03,081 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:03,082 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 09:49:03,082 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:03,082 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:03,082 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:03,083 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:03,083 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 09:49:03,084 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:03,086 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 09:49:03,087 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:03,089 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:03,093 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:03,093 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:03,094 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:03,094 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 09:49:03,094 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:03,095 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:03,095 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:03,096 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:03,096 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 09:49:03,096 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 09:49:03,099 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 09:49:03,101 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:03,103 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:03,114 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:03,115 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:03,115 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:03,115 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 12
[2020-09-25 09:49:03,116 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:03,116 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:03,117 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 09:49:03,117 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:03,117 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 09:49:03,118 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:03,159 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 09:49:03,160 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:03,162 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:03,165 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:03,165 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:03,165 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:03,166 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 09:49:03,166 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:03,167 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:03,167 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:03,167 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 09:49:03,168 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:03,168 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:03,218 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 09:49:03,220 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1747684681]
[2020-09-25 09:49:03,222 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 09:49:03,223 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-25 09:49:03,224 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705644927]
[2020-09-25 09:49:03,233 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-25 09:49:03,233 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 09:49:03,253 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-25 09:49:03,254 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-25 09:49:03,260 INFO  L87              Difference]: Start difference. First operand 295 states. Second operand 8 states.
[2020-09-25 09:49:03,897 WARN  L193               SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 09:49:05,323 WARN  L193               SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 09:49:05,681 WARN  L193               SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 09:49:06,060 WARN  L193               SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 09:49:06,363 WARN  L193               SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 09:49:06,662 WARN  L193               SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 09:49:06,957 WARN  L193               SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 09:49:07,271 WARN  L193               SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 09:49:08,577 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 09:49:08,577 INFO  L93              Difference]: Finished difference Result 571 states and 710 transitions.
[2020-09-25 09:49:08,587 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-25 09:49:08,589 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 153
[2020-09-25 09:49:08,591 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 09:49:08,615 INFO  L225             Difference]: With dead ends: 571
[2020-09-25 09:49:08,615 INFO  L226             Difference]: Without dead ends: 397
[2020-09-25 09:49:08,621 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2020-09-25 09:49:08,663 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 397 states.
[2020-09-25 09:49:08,786 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 350.
[2020-09-25 09:49:08,788 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 350 states.
[2020-09-25 09:49:08,791 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 398 transitions.
[2020-09-25 09:49:08,794 INFO  L78                 Accepts]: Start accepts. Automaton has 350 states and 398 transitions. Word has length 153
[2020-09-25 09:49:08,795 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 09:49:08,795 INFO  L479      AbstractCegarLoop]: Abstraction has 350 states and 398 transitions.
[2020-09-25 09:49:08,795 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-25 09:49:08,795 INFO  L276                IsEmpty]: Start isEmpty. Operand 350 states and 398 transitions.
[2020-09-25 09:49:08,803 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 160
[2020-09-25 09:49:08,803 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 09:49:08,803 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]
[2020-09-25 09:49:08,804 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 09:49:08,804 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 09:49:08,804 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 09:49:08,804 INFO  L82        PathProgramCache]: Analyzing trace with hash 942097100, now seen corresponding path program 1 times
[2020-09-25 09:49:08,805 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 09:49:08,805 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [998832624]
[2020-09-25 09:49:08,805 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 09:49:08,860 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:08,917 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:09,025 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:09,178 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:13,896 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:13,897 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 194
[2020-09-25 09:49:13,897 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 09:49:13,897 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5033
[2020-09-25 09:49:13,898 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:13,898 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:13,899 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 09:49:13,899 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 80
[2020-09-25 09:49:13,899 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 68
[2020-09-25 09:49:13,899 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:14,168 WARN  L193               SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 09:49:14,169 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 09:49:14,201 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:14,241 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:14,449 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:14,449 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 09:49:14,450 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:14,450 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 245
[2020-09-25 09:49:14,450 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:14,450 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:14,450 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:14,451 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:14,451 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 76
[2020-09-25 09:49:14,451 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:14,508 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 09:49:14,509 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:14,511 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:14,514 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:14,514 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:49:14,514 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:14,515 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 09:49:14,515 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:14,515 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:14,515 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:14,516 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:14,516 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 09:49:14,516 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:14,517 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 09:49:14,518 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:14,520 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:14,523 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:14,523 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:49:14,523 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:14,523 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 09:49:14,523 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:14,524 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:14,524 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:14,524 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:14,524 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 09:49:14,524 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:14,526 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 09:49:14,527 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:14,529 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:14,535 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:14,535 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:14,536 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:14,536 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 09:49:14,536 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:14,536 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:14,536 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:14,537 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:14,537 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 09:49:14,537 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:14,539 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 09:49:14,539 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:14,540 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:14,543 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:14,543 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:49:14,543 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:14,544 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 09:49:14,544 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:14,544 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:14,544 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:14,545 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:14,545 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 09:49:14,545 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:14,553 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117
[2020-09-25 09:49:14,555 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:14,556 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:14,564 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:14,564 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 09:49:14,564 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:14,564 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 09:49:14,565 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:14,565 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:14,565 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:14,565 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:14,565 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 09:49:14,566 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:14,568 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127
[2020-09-25 09:49:14,570 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:14,571 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:14,573 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:14,573 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:14,573 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:14,574 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 09:49:14,574 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:14,574 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:14,574 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:14,575 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 09:49:14,575 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:14,575 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:14,576 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137
[2020-09-25 09:49:14,577 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:14,579 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:14,580 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:14,580 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:14,583 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:14,583 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 09:49:14,584 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:14,584 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:14,584 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:14,585 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 09:49:14,585 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:14,585 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:14,586 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147
[2020-09-25 09:49:14,587 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:14,588 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:14,590 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:14,590 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:14,590 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:14,590 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 09:49:14,591 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:14,591 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:14,591 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:14,591 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 09:49:14,591 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:14,592 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:14,621 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 09:49:14,622 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [998832624]
[2020-09-25 09:49:14,622 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 09:49:14,623 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-09-25 09:49:14,623 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348017841]
[2020-09-25 09:49:14,626 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-25 09:49:14,627 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 09:49:14,627 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-25 09:49:14,627 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-25 09:49:14,628 INFO  L87              Difference]: Start difference. First operand 350 states and 398 transitions. Second operand 6 states.
[2020-09-25 09:49:15,254 WARN  L193               SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 09:49:16,084 WARN  L193               SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 09:49:18,715 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 09:49:18,715 INFO  L93              Difference]: Finished difference Result 1093 states and 1384 transitions.
[2020-09-25 09:49:18,715 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2020-09-25 09:49:18,715 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 159
[2020-09-25 09:49:18,717 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 09:49:18,726 INFO  L225             Difference]: With dead ends: 1093
[2020-09-25 09:49:18,727 INFO  L226             Difference]: Without dead ends: 853
[2020-09-25 09:49:18,731 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90
[2020-09-25 09:49:18,733 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 853 states.
[2020-09-25 09:49:18,903 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 743.
[2020-09-25 09:49:18,903 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 743 states.
[2020-09-25 09:49:18,909 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 743 states and 885 transitions.
[2020-09-25 09:49:18,909 INFO  L78                 Accepts]: Start accepts. Automaton has 743 states and 885 transitions. Word has length 159
[2020-09-25 09:49:18,910 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 09:49:18,910 INFO  L479      AbstractCegarLoop]: Abstraction has 743 states and 885 transitions.
[2020-09-25 09:49:18,911 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-09-25 09:49:18,911 INFO  L276                IsEmpty]: Start isEmpty. Operand 743 states and 885 transitions.
[2020-09-25 09:49:18,917 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 181
[2020-09-25 09:49:18,918 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 09:49:18,918 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]
[2020-09-25 09:49:18,918 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 09:49:18,918 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 09:49:18,919 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 09:49:18,919 INFO  L82        PathProgramCache]: Analyzing trace with hash -721477650, now seen corresponding path program 1 times
[2020-09-25 09:49:18,919 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 09:49:18,919 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [615663165]
[2020-09-25 09:49:18,921 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 09:49:18,985 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 09:49:18,993 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 09:49:18,993 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 09:49:18,998 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 09:49:19,025 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 09:49:19 BoogieIcfgContainer
[2020-09-25 09:49:19,026 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 09:49:19,028 INFO  L168              Benchmark]: Toolchain (without parser) took 24687.66 ms. Allocated memory was 148.9 MB in the beginning and 528.0 MB in the end (delta: 379.1 MB). Free memory was 104.4 MB in the beginning and 459.2 MB in the end (delta: -354.8 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB.
[2020-09-25 09:49:19,029 INFO  L168              Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 148.9 MB. Free memory was 123.6 MB in the beginning and 123.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-25 09:49:19,030 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 773.73 ms. Allocated memory was 148.9 MB in the beginning and 205.5 MB in the end (delta: 56.6 MB). Free memory was 103.8 MB in the beginning and 175.4 MB in the end (delta: -71.6 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB.
[2020-09-25 09:49:19,031 INFO  L168              Benchmark]: Boogie Preprocessor took 100.20 ms. Allocated memory is still 205.5 MB. Free memory was 175.4 MB in the beginning and 171.3 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB.
[2020-09-25 09:49:19,032 INFO  L168              Benchmark]: RCFGBuilder took 1323.49 ms. Allocated memory was 205.5 MB in the beginning and 234.4 MB in the end (delta: 28.8 MB). Free memory was 171.3 MB in the beginning and 175.0 MB in the end (delta: -3.8 MB). Peak memory consumption was 81.2 MB. Max. memory is 7.1 GB.
[2020-09-25 09:49:19,033 INFO  L168              Benchmark]: TraceAbstraction took 22481.52 ms. Allocated memory was 234.4 MB in the beginning and 528.0 MB in the end (delta: 293.6 MB). Free memory was 173.7 MB in the beginning and 459.2 MB in the end (delta: -285.5 MB). Peak memory consumption was 8.1 MB. Max. memory is 7.1 GB.
[2020-09-25 09:49:19,037 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.21 ms. Allocated memory is still 148.9 MB. Free memory was 123.6 MB in the beginning and 123.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 773.73 ms. Allocated memory was 148.9 MB in the beginning and 205.5 MB in the end (delta: 56.6 MB). Free memory was 103.8 MB in the beginning and 175.4 MB in the end (delta: -71.6 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 100.20 ms. Allocated memory is still 205.5 MB. Free memory was 175.4 MB in the beginning and 171.3 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1323.49 ms. Allocated memory was 205.5 MB in the beginning and 234.4 MB in the end (delta: 28.8 MB). Free memory was 171.3 MB in the beginning and 175.0 MB in the end (delta: -3.8 MB). Peak memory consumption was 81.2 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 22481.52 ms. Allocated memory was 234.4 MB in the beginning and 528.0 MB in the end (delta: 293.6 MB). Free memory was 173.7 MB in the beginning and 459.2 MB in the end (delta: -285.5 MB). Peak memory consumption was 8.1 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: 
[L49]               int cleanupTimeShifts  =    4;
[L322]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L596]              int pumpRunning  =    0;
[L597]              int systemActive  =    1;
[L806]              int waterLevel  =    1;
[L807]              int methaneLevelCritical  =    0;
[L130]              int retValue_acc ;
[L131]              int tmp ;
[L135]  FCALL       select_helpers()
[L136]  FCALL       select_features()
[L137]  CALL, EXPR  valid_product()
[L796]              int retValue_acc ;
[L799]              retValue_acc = 1
[L800]              return (retValue_acc);
[L137]  RET, EXPR   valid_product()
[L137]              tmp = valid_product()
[L139]  COND TRUE   \read(tmp)
[L141]  FCALL       setup()
[L142]  CALL        runTest()
[L121]  CALL        test()
[L522]              int splverifierCounter ;
[L523]              int tmp ;
[L524]              int tmp___0 ;
[L525]              int tmp___1 ;
[L526]              int tmp___2 ;
[L529]              splverifierCounter = 0
[L531]  COND TRUE   1
[L533]  COND TRUE   splverifierCounter < 4
[L539]              tmp = __VERIFIER_nondet_int()
[L541]  COND TRUE   \read(tmp)
[L543]  CALL        waterRise()
[L824]  COND TRUE   waterLevel < 2
[L825]              waterLevel = waterLevel + 1
[L543]  RET         waterRise()
[L549]              tmp___0 = __VERIFIER_nondet_int()
[L551]  COND FALSE  !(\read(tmp___0))
[L559]              tmp___2 = __VERIFIER_nondet_int()
[L561]  COND TRUE   \read(tmp___2)
[L563]  CALL        startSystem()
[L765]              systemActive = 1
[L563]  RET         startSystem()
[L578]  CALL        timeShift()
[L604]  COND FALSE  !(\read(pumpRunning))
[L611]  COND TRUE   \read(systemActive)
[L613]  CALL        processEnvironment()
[L633]              int tmp ;
[L636]  COND FALSE  !(\read(pumpRunning))
[L651]  FCALL       processEnvironment__wrappee__methaneQuery()
[L613]  RET         processEnvironment()
[L619]  CALL        __utac_acc__Specification3_spec__1()
[L887]              int tmp ;
[L888]              int tmp___0 ;
[L889]              int tmp___1 ;
[L893]  CALL, EXPR  isMethaneLevelCritical()
[L845]              int retValue_acc ;
[L848]              retValue_acc = methaneLevelCritical
[L849]              return (retValue_acc);
[L893]  RET, EXPR   isMethaneLevelCritical()
[L893]              tmp = isMethaneLevelCritical()
[L895]  COND FALSE  !(\read(tmp))
[L899]  CALL, EXPR  getWaterLevel()
[L877]              int retValue_acc ;
[L880]              retValue_acc = waterLevel
[L881]              return (retValue_acc);
[L899]  RET, EXPR   getWaterLevel()
[L899]              tmp___0 = getWaterLevel()
[L901]  COND TRUE   tmp___0 == 2
[L903]  CALL, EXPR  isPumpRunning()
[L702]              int retValue_acc ;
[L705]              retValue_acc = pumpRunning
[L706]              return (retValue_acc);
[L903]  RET, EXPR   isPumpRunning()
[L903]              tmp___1 = isPumpRunning()
[L905]  COND FALSE  !(\read(tmp___1))
[L909]  CALL        __automaton_fail()
[L44]               __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 38 procedures, 609 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 22.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 9.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 501 SDtfs, 963 SDslu, 914 SDs, 0 SdLazy, 1808 SolverSat, 364 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=743occurred 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: 0.3s AutomataMinimizationTime, 2 MinimizatonAttempts, 157 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 11.8s InterpolantComputationTime, 492 NumberOfCodeBlocks, 492 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 310 ConstructedInterpolants, 0 QuantifiedInterpolants, 133634 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...