/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=LOWLEXORDER --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_product11.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 21:21:00,702 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 21:21:00,706 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 21:21:00,732 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 21:21:00,732 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 21:21:00,734 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 21:21:00,735 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 21:21:00,737 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 21:21:00,739 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 21:21:00,740 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
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[2020-09-24 21:21:00,742 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 21:21:00,742 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 21:21:00,744 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 21:21:00,745 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 21:21:00,746 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 21:21:00,747 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 21:21:00,748 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 21:21:00,750 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 21:21:00,752 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 21:21:00,754 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 21:21:00,755 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 21:21:00,756 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 21:21:00,757 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 21:21:00,760 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 21:21:00,760 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 21:21:00,760 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 21:21:00,761 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 21:21:00,762 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 21:21:00,763 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 21:21:00,763 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 21:21:00,764 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 21:21:00,765 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 21:21:00,766 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 21:21:00,767 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 21:21:00,767 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 21:21:00,768 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 21:21:00,769 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 21:21:00,769 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 21:21:00,770 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 21:21:00,771 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 21:21:00,771 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-24 21:21:00,811 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 21:21:00,812 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 21:21:00,815 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 21:21:00,815 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 21:21:00,815 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 21:21:00,816 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 21:21:00,816 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 21:21:00,816 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 21:21:00,816 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 21:21:00,816 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 21:21:00,817 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 21:21:00,817 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 21:21:00,817 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 21:21:00,817 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 21:21:00,817 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 21:21:00,818 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 21:21:00,818 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 21:21:00,818 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 21:21:00,818 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 21:21:00,819 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 21:21:00,819 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 21:21:00,819 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 21:21:00,819 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 21:21:00,819 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 21:21:00,820 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 21:21:00,820 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 21:21:00,820 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 21:21:00,820 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 21:21:00,820 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 21:21:00,821 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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;log-additional-information=true;
[2020-09-24 21:21:01,254 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 21:21:01,274 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 21:21:01,278 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 21:21:01,280 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 21:21:01,281 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 21:21:01,282 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product11.cil.c
[2020-09-24 21:21:01,375 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/04c24ab6c/95a8247d00f646818da61c0f5500c739/FLAGacbbef69c
[2020-09-24 21:21:01,981 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 21:21:01,982 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product11.cil.c
[2020-09-24 21:21:01,999 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/04c24ab6c/95a8247d00f646818da61c0f5500c739/FLAGacbbef69c
[2020-09-24 21:21:02,268 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/04c24ab6c/95a8247d00f646818da61c0f5500c739
[2020-09-24 21:21:02,281 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 21:21:02,286 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 21:21:02,289 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 21:21:02,289 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 21:21:02,295 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 21:21:02,296 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:21:02" (1/1) ...
[2020-09-24 21:21:02,300 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fb1716d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:02, skipping insertion in model container
[2020-09-24 21:21:02,300 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:21:02" (1/1) ...
[2020-09-24 21:21:02,307 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 21:21:02,366 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 21:21:02,718 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 21:21:02,738 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 21:21:02,982 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 21:21:03,020 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 21:21:03,020 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:03 WrapperNode
[2020-09-24 21:21:03,021 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 21:21:03,022 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 21:21:03,022 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 21:21:03,022 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 21:21:03,041 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:03" (1/1) ...
[2020-09-24 21:21:03,041 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:03" (1/1) ...
[2020-09-24 21:21:03,063 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:03" (1/1) ...
[2020-09-24 21:21:03,064 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:03" (1/1) ...
[2020-09-24 21:21:03,098 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:03" (1/1) ...
[2020-09-24 21:21:03,110 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:03" (1/1) ...
[2020-09-24 21:21:03,115 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:03" (1/1) ...
[2020-09-24 21:21:03,122 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 21:21:03,123 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 21:21:03,123 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 21:21:03,124 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 21:21:03,125 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:03" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 21:21:03,225 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 21:21:03,226 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 21:21:03,226 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 21:21:03,226 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-24 21:21:03,226 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 21:21:03,226 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 21:21:03,227 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 21:21:03,227 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 21:21:03,228 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 21:21:03,228 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 21:21:03,228 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 21:21:03,229 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 21:21:03,229 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 21:21:03,229 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 21:21:03,230 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 21:21:03,231 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 21:21:03,231 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 21:21:03,231 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 21:21:03,231 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 21:21:03,232 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 21:21:03,232 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 21:21:03,232 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base
[2020-09-24 21:21:03,232 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 21:21:03,233 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 21:21:03,233 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 21:21:03,234 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 21:21:03,234 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 21:21:03,234 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-24 21:21:03,234 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 21:21:03,234 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 21:21:03,234 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 21:21:03,235 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 21:21:03,235 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 21:21:03,235 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 21:21:03,235 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 21:21:03,235 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 21:21:03,236 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 21:21:03,236 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 21:21:03,236 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 21:21:03,236 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 21:21:03,236 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 21:21:03,236 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 21:21:03,237 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 21:21:03,237 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-24 21:21:03,237 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 21:21:03,237 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 21:21:03,237 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 21:21:03,238 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 21:21:03,239 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 21:21:03,239 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 21:21:03,239 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 21:21:03,239 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 21:21:03,240 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 21:21:03,240 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 21:21:03,240 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 21:21:03,240 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 21:21:03,241 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 21:21:03,241 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 21:21:03,241 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 21:21:03,241 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 21:21:03,241 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 21:21:03,241 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 21:21:03,241 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 21:21:03,242 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 21:21:03,242 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 21:21:03,242 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 21:21:03,242 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 21:21:03,242 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 21:21:03,243 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 21:21:03,243 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 21:21:03,243 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 21:21:03,244 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 21:21:03,245 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 21:21:03,246 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 21:21:03,246 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 21:21:03,246 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 21:21:03,246 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 21:21:03,246 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 21:21:03,246 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 21:21:03,246 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-24 21:21:03,247 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 21:21:03,247 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base
[2020-09-24 21:21:03,248 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 21:21:03,248 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 21:21:03,248 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 21:21:03,248 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 21:21:04,398 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 21:21:04,399 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 21:21:04,406 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:21:04 BoogieIcfgContainer
[2020-09-24 21:21:04,406 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 21:21:04,407 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 21:21:04,408 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 21:21:04,412 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 21:21:04,412 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:21:02" (1/3) ...
[2020-09-24 21:21:04,413 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dd1aec8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:21:04, skipping insertion in model container
[2020-09-24 21:21:04,413 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:03" (2/3) ...
[2020-09-24 21:21:04,413 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dd1aec8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:21:04, skipping insertion in model container
[2020-09-24 21:21:04,414 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:21:04" (3/3) ...
[2020-09-24 21:21:04,416 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product11.cil.c
[2020-09-24 21:21:04,428 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 21:21:04,439 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 21:21:04,461 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 21:21:04,492 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 21:21:04,492 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 21:21:04,492 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 21:21:04,492 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 21:21:04,492 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 21:21:04,493 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 21:21:04,493 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 21:21:04,493 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 21:21:04,521 INFO  L276                IsEmpty]: Start isEmpty. Operand 277 states.
[2020-09-24 21:21:04,537 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-24 21:21:04,538 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 21:21:04,539 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 21:21:04,540 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 21:21:04,546 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 21:21:04,547 INFO  L82        PathProgramCache]: Analyzing trace with hash 348388081, now seen corresponding path program 1 times
[2020-09-24 21:21:04,558 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 21:21:04,558 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [501620257]
[2020-09-24 21:21:04,559 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 21:21:04,894 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:05,087 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:05,252 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:06,715 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:09,931 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:09,932 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-24 21:21:09,932 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 21:21:09,933 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5026
[2020-09-24 21:21:09,940 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:09,941 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-24 21:21:09,941 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 80
[2020-09-24 21:21:09,941 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 60
[2020-09-24 21:21:09,941 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 5
[2020-09-24 21:21:10,399 WARN  L193               SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 21:21:10,403 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 21:21:10,462 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:10,507 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:10,772 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:10,772 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 21:21:10,773 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:10,774 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 308
[2020-09-24 21:21:10,774 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:10,775 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:10,783 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:10,784 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 76
[2020-09-24 21:21:10,784 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 9
[2020-09-24 21:21:10,893 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 21:21:10,896 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:10,898 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:10,907 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:10,907 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:21:10,907 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:10,907 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-24 21:21:10,908 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:10,908 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:10,908 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:10,908 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:21:10,909 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:10,910 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 21:21:10,911 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:10,912 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:10,916 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:10,916 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:21:10,916 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:10,916 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 21:21:10,917 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:10,917 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:10,917 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:10,917 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:21:10,918 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:10,920 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 21:21:10,922 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:10,925 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:10,935 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:10,935 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:10,935 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:10,936 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 12
[2020-09-24 21:21:10,936 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:10,936 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:10,936 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:10,936 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 21:21:10,937 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:10,939 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 21:21:10,940 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:10,943 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:10,947 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:10,947 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:21:10,948 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:10,948 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 21:21:10,948 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:10,948 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:10,949 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:10,949 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:21:10,949 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:10,951 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-24 21:21:10,952 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:10,956 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:10,958 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:10,958 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:10,959 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:10,959 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 21:21:10,959 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:10,959 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:21:10,960 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 21:21:10,960 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:21:10,960 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:10,962 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-24 21:21:10,963 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:10,967 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:10,969 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:10,969 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:10,970 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:10,970 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 21:21:10,970 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:10,971 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:21:10,971 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 21:21:10,971 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:21:10,971 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:10,974 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-24 21:21:10,977 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:10,979 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:10,981 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:10,981 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:10,982 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:10,982 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 21:21:10,982 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:10,982 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:21:10,983 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 21:21:10,983 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:21:10,983 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:11,022 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 21:21:11,023 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [501620257]
[2020-09-24 21:21:11,026 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 21:21:11,026 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-24 21:21:11,027 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425382674]
[2020-09-24 21:21:11,039 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-24 21:21:11,039 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 21:21:11,057 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-24 21:21:11,058 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-24 21:21:11,061 INFO  L87              Difference]: Start difference. First operand 277 states. Second operand 4 states.
[2020-09-24 21:21:11,738 WARN  L193               SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 21:21:13,370 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 21:21:13,371 INFO  L93              Difference]: Finished difference Result 513 states and 628 transitions.
[2020-09-24 21:21:13,372 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-09-24 21:21:13,373 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 153
[2020-09-24 21:21:13,375 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 21:21:13,395 INFO  L225             Difference]: With dead ends: 513
[2020-09-24 21:21:13,396 INFO  L226             Difference]: Without dead ends: 363
[2020-09-24 21:21:13,402 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-09-24 21:21:13,425 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 363 states.
[2020-09-24 21:21:13,568 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 298.
[2020-09-24 21:21:13,570 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 298 states.
[2020-09-24 21:21:13,574 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 327 transitions.
[2020-09-24 21:21:13,578 INFO  L78                 Accepts]: Start accepts. Automaton has 298 states and 327 transitions. Word has length 153
[2020-09-24 21:21:13,582 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 21:21:13,586 INFO  L479      AbstractCegarLoop]: Abstraction has 298 states and 327 transitions.
[2020-09-24 21:21:13,586 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-24 21:21:13,587 INFO  L276                IsEmpty]: Start isEmpty. Operand 298 states and 327 transitions.
[2020-09-24 21:21:13,601 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 158
[2020-09-24 21:21:13,602 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 21:21:13,602 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]
[2020-09-24 21:21:13,603 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 21:21:13,603 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 21:21:13,604 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 21:21:13,604 INFO  L82        PathProgramCache]: Analyzing trace with hash -1227533450, now seen corresponding path program 1 times
[2020-09-24 21:21:13,605 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 21:21:13,605 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1299494545]
[2020-09-24 21:21:13,605 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 21:21:13,667 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:13,725 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:13,965 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:16,941 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:16,942 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 192
[2020-09-24 21:21:16,942 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 21:21:16,944 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3269
[2020-09-24 21:21:16,945 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:16,946 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-24 21:21:16,946 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 81
[2020-09-24 21:21:16,946 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 95
[2020-09-24 21:21:16,946 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-24 21:21:17,380 WARN  L193               SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 21:21:17,382 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 21:21:17,430 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:17,479 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:17,732 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:17,732 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 21:21:17,733 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:17,733 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 298
[2020-09-24 21:21:17,733 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:17,733 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:17,734 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:17,734 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 77
[2020-09-24 21:21:17,734 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:17,792 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 21:21:17,793 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:17,796 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:17,799 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:17,799 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:21:17,800 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:17,800 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 21:21:17,800 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:17,800 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:17,801 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:17,801 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:21:17,801 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:17,802 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 21:21:17,803 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:17,805 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:17,808 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:17,809 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:21:17,809 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:17,809 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 21:21:17,810 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:17,810 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:17,810 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:17,810 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:21:17,811 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:17,812 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 21:21:17,814 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:17,816 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:17,822 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:17,822 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:17,822 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:17,823 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 21:21:17,823 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:17,823 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:17,823 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:17,824 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 21:21:17,824 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:17,826 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 21:21:17,827 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:17,828 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:17,831 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:17,831 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:21:17,831 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:17,832 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 21:21:17,832 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:17,832 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:17,832 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:17,833 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:21:17,833 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:17,834 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118
[2020-09-24 21:21:17,835 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:17,836 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:17,840 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:17,840 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:21:17,840 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:17,841 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 21:21:17,841 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:17,841 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:17,841 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:17,842 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:21:17,842 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:17,844 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125
[2020-09-24 21:21:17,845 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:17,846 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:17,849 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:17,850 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:17,850 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:17,850 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 21:21:17,851 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:17,851 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:17,851 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:17,851 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 21:21:17,852 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:17,855 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135
[2020-09-24 21:21:17,857 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:17,860 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:17,868 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:17,869 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:17,869 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:17,869 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-24 21:21:17,869 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:17,870 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 21:21:17,870 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:17,870 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 21:21:17,870 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:17,957 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145
[2020-09-24 21:21:17,958 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:17,960 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:17,967 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:17,968 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:17,968 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:17,968 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 21:21:17,968 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:17,968 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:21:17,969 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 21:21:17,969 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:21:17,969 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:18,004 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 21:21:18,005 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1299494545]
[2020-09-24 21:21:18,005 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 21:21:18,005 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2020-09-24 21:21:18,005 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051098080]
[2020-09-24 21:21:18,009 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-24 21:21:18,009 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 21:21:18,009 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-24 21:21:18,010 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2020-09-24 21:21:18,010 INFO  L87              Difference]: Start difference. First operand 298 states and 327 transitions. Second operand 9 states.
[2020-09-24 21:21:18,517 WARN  L193               SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 21:21:20,319 WARN  L193               SmtUtils]: Spent 560.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 188
[2020-09-24 21:21:21,022 WARN  L193               SmtUtils]: Spent 633.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 190
[2020-09-24 21:21:21,377 WARN  L193               SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 21:21:21,724 WARN  L193               SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-24 21:21:22,032 WARN  L193               SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 21:21:22,488 WARN  L193               SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-24 21:21:22,812 WARN  L193               SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 198
[2020-09-24 21:21:23,217 WARN  L193               SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 21:21:23,905 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 21:21:23,906 INFO  L93              Difference]: Finished difference Result 730 states and 892 transitions.
[2020-09-24 21:21:23,908 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2020-09-24 21:21:23,908 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 157
[2020-09-24 21:21:23,909 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 21:21:23,921 INFO  L225             Difference]: With dead ends: 730
[2020-09-24 21:21:23,921 INFO  L226             Difference]: Without dead ends: 509
[2020-09-24 21:21:23,929 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306
[2020-09-24 21:21:23,933 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 509 states.
[2020-09-24 21:21:24,046 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 455.
[2020-09-24 21:21:24,047 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 455 states.
[2020-09-24 21:21:24,050 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 513 transitions.
[2020-09-24 21:21:24,051 INFO  L78                 Accepts]: Start accepts. Automaton has 455 states and 513 transitions. Word has length 157
[2020-09-24 21:21:24,051 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 21:21:24,051 INFO  L479      AbstractCegarLoop]: Abstraction has 455 states and 513 transitions.
[2020-09-24 21:21:24,052 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-09-24 21:21:24,052 INFO  L276                IsEmpty]: Start isEmpty. Operand 455 states and 513 transitions.
[2020-09-24 21:21:24,056 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 172
[2020-09-24 21:21:24,056 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 21:21:24,056 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]
[2020-09-24 21:21:24,057 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 21:21:24,057 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 21:21:24,057 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 21:21:24,057 INFO  L82        PathProgramCache]: Analyzing trace with hash -1656398860, now seen corresponding path program 1 times
[2020-09-24 21:21:24,058 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 21:21:24,058 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [242319883]
[2020-09-24 21:21:24,058 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 21:21:24,131 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-24 21:21:24,139 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-24 21:21:24,139 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-24 21:21:24,145 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 21:21:24,174 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 09:21:24 BoogieIcfgContainer
[2020-09-24 21:21:24,174 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 21:21:24,176 INFO  L168              Benchmark]: Toolchain (without parser) took 21893.36 ms. Allocated memory was 137.9 MB in the beginning and 516.4 MB in the end (delta: 378.5 MB). Free memory was 100.0 MB in the beginning and 121.0 MB in the end (delta: -21.0 MB). Peak memory consumption was 357.5 MB. Max. memory is 7.1 GB.
[2020-09-24 21:21:24,177 INFO  L168              Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-24 21:21:24,178 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 732.75 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 99.4 MB in the beginning and 171.6 MB in the end (delta: -72.1 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB.
[2020-09-24 21:21:24,179 INFO  L168              Benchmark]: Boogie Preprocessor took 100.91 ms. Allocated memory is still 201.3 MB. Free memory was 171.6 MB in the beginning and 168.0 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB.
[2020-09-24 21:21:24,180 INFO  L168              Benchmark]: RCFGBuilder took 1283.14 ms. Allocated memory was 201.3 MB in the beginning and 231.2 MB in the end (delta: 29.9 MB). Free memory was 168.0 MB in the beginning and 181.5 MB in the end (delta: -13.5 MB). Peak memory consumption was 89.9 MB. Max. memory is 7.1 GB.
[2020-09-24 21:21:24,181 INFO  L168              Benchmark]: TraceAbstraction took 19766.60 ms. Allocated memory was 231.2 MB in the beginning and 516.4 MB in the end (delta: 285.2 MB). Free memory was 181.5 MB in the beginning and 121.0 MB in the end (delta: 60.5 MB). Peak memory consumption was 345.7 MB. Max. memory is 7.1 GB.
[2020-09-24 21:21:24,185 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 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 732.75 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 99.4 MB in the beginning and 171.6 MB in the end (delta: -72.1 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 100.91 ms. Allocated memory is still 201.3 MB. Free memory was 171.6 MB in the beginning and 168.0 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1283.14 ms. Allocated memory was 201.3 MB in the beginning and 231.2 MB in the end (delta: 29.9 MB). Free memory was 168.0 MB in the beginning and 181.5 MB in the end (delta: -13.5 MB). Peak memory consumption was 89.9 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 19766.60 ms. Allocated memory was 231.2 MB in the beginning and 516.4 MB in the end (delta: 285.2 MB). Free memory was 181.5 MB in the beginning and 121.0 MB in the end (delta: 60.5 MB). Peak memory consumption was 345.7 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 799]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L78]               int cleanupTimeShifts  =    4;
[L386]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L588]              int pumpRunning  =    0;
[L589]              int systemActive  =    1;
[L804]              int waterLevel  =    1;
[L805]              int methaneLevelCritical  =    0;
[L159]              int retValue_acc ;
[L160]              int tmp ;
[L164]  FCALL       select_helpers()
[L165]  FCALL       select_features()
[L166]  CALL, EXPR  valid_product()
[L208]              int retValue_acc ;
[L211]              retValue_acc = 1
[L212]              return (retValue_acc);
[L166]  RET, EXPR   valid_product()
[L166]              tmp = valid_product()
[L168]  COND TRUE   \read(tmp)
[L170]  FCALL       setup()
[L171]  CALL        runTest()
[L150]  CALL        test()
[L729]              int splverifierCounter ;
[L730]              int tmp ;
[L731]              int tmp___0 ;
[L732]              int tmp___1 ;
[L733]              int tmp___2 ;
[L736]              splverifierCounter = 0
[L738]  COND TRUE   1
[L740]  COND TRUE   splverifierCounter < 4
[L746]              tmp = __VERIFIER_nondet_int()
[L748]  COND TRUE   \read(tmp)
[L750]  CALL        waterRise()
[L822]  COND TRUE   waterLevel < 2
[L823]              waterLevel = waterLevel + 1
[L750]  RET         waterRise()
[L756]              tmp___0 = __VERIFIER_nondet_int()
[L758]  COND FALSE  !(\read(tmp___0))
[L766]              tmp___2 = __VERIFIER_nondet_int()
[L768]  COND TRUE   \read(tmp___2)
[L783]  CALL        timeShift()
[L595]  COND FALSE  !(\read(pumpRunning))
[L602]  COND TRUE   \read(systemActive)
[L604]  FCALL       processEnvironment()
[L610]  CALL        __utac_acc__Specification3_spec__1()
[L45]               int tmp ;
[L46]               int tmp___0 ;
[L47]               int tmp___1 ;
[L51]   CALL, EXPR  isMethaneLevelCritical()
[L843]              int retValue_acc ;
[L846]              retValue_acc = methaneLevelCritical
[L847]              return (retValue_acc);
[L51]   RET, EXPR   isMethaneLevelCritical()
[L51]               tmp = isMethaneLevelCritical()
[L53]   COND FALSE  !(\read(tmp))
[L57]   CALL, EXPR  getWaterLevel()
[L875]              int retValue_acc ;
[L878]              retValue_acc = waterLevel
[L879]              return (retValue_acc);
[L57]   RET, EXPR   getWaterLevel()
[L57]               tmp___0 = getWaterLevel()
[L59]   COND TRUE   tmp___0 == 2
[L61]   CALL, EXPR  isPumpRunning()
[L668]              int retValue_acc ;
[L671]              retValue_acc = pumpRunning
[L672]              return (retValue_acc);
[L61]   RET, EXPR   isPumpRunning()
[L61]               tmp___1 = isPumpRunning()
[L63]   COND FALSE  !(\read(tmp___1))
[L67]   CALL        __automaton_fail()
[L799]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 36 procedures, 593 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 19.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 8.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 418 SDtfs, 611 SDslu, 785 SDs, 0 SdLazy, 1312 SolverSat, 198 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 4.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=455occurred 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, 119 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 10.3s InterpolantComputationTime, 481 NumberOfCodeBlocks, 481 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 308 ConstructedInterpolants, 0 QuantifiedInterpolants, 140068 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...