/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_product03.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 21:20:34,650 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 21:20:34,654 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 21:20:34,699 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 21:20:34,700 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 21:20:34,708 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 21:20:34,710 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 21:20:34,714 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 21:20:34,716 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 21:20:34,719 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 21:20:34,720 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 21:20:34,722 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 21:20:34,722 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 21:20:34,725 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 21:20:34,728 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 21:20:34,730 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 21:20:34,732 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 21:20:34,733 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 21:20:34,735 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 21:20:34,743 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 21:20:34,745 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 21:20:34,746 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 21:20:34,747 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 21:20:34,748 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 21:20:34,756 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 21:20:34,756 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 21:20:34,756 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 21:20:34,757 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 21:20:34,760 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 21:20:34,761 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 21:20:34,761 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
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[2020-09-24 21:20:34,765 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 21:20:34,766 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 21:20:34,767 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 21:20:34,767 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 21:20:34,768 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 21:20:34,768 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 21:20:34,769 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 21:20:34,770 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 21:20:34,771 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 21:20:34,772 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 21:20:34,820 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 21:20:34,820 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 21:20:34,823 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 21:20:34,823 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 21:20:34,823 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 21:20:34,824 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 21:20:34,824 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 21:20:34,824 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 21:20:34,824 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 21:20:34,825 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 21:20:34,826 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 21:20:34,826 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 21:20:34,826 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 21:20:34,827 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 21:20:34,827 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 21:20:34,827 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 21:20:34,827 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 21:20:34,828 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 21:20:34,828 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 21:20:34,828 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 21:20:34,828 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 21:20:34,828 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 21:20:34,829 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 21:20:34,829 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 21:20:34,829 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 21:20:34,829 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 21:20:34,830 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 21:20:34,830 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 21:20:34,830 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 21:20:34,830 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 21:20:35,301 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 21:20:35,324 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 21:20:35,330 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 21:20:35,332 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 21:20:35,333 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 21:20:35,334 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product03.cil.c
[2020-09-24 21:20:35,411 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d9ac37bd0/2a396e3671d84a9ba108c310013966fd/FLAG60ab2430f
[2020-09-24 21:20:36,054 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 21:20:36,055 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product03.cil.c
[2020-09-24 21:20:36,070 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d9ac37bd0/2a396e3671d84a9ba108c310013966fd/FLAG60ab2430f
[2020-09-24 21:20:36,288 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d9ac37bd0/2a396e3671d84a9ba108c310013966fd
[2020-09-24 21:20:36,300 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 21:20:36,305 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 21:20:36,306 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 21:20:36,307 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 21:20:36,311 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 21:20:36,312 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:20:36" (1/1) ...
[2020-09-24 21:20:36,316 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@559d5a1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:36, skipping insertion in model container
[2020-09-24 21:20:36,316 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:20:36" (1/1) ...
[2020-09-24 21:20:36,325 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 21:20:36,380 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 21:20:36,848 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 21:20:36,862 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 21:20:36,941 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 21:20:36,976 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 21:20:36,976 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:36 WrapperNode
[2020-09-24 21:20:36,977 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 21:20:36,977 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 21:20:36,978 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 21:20:36,978 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 21:20:36,995 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:36" (1/1) ...
[2020-09-24 21:20:36,995 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:36" (1/1) ...
[2020-09-24 21:20:37,015 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:36" (1/1) ...
[2020-09-24 21:20:37,016 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:36" (1/1) ...
[2020-09-24 21:20:37,048 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:36" (1/1) ...
[2020-09-24 21:20:37,060 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:36" (1/1) ...
[2020-09-24 21:20:37,070 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:36" (1/1) ...
[2020-09-24 21:20:37,089 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 21:20:37,089 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 21:20:37,089 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 21:20:37,090 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 21:20:37,095 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:36" (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 21:20:37,192 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 21:20:37,193 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 21:20:37,193 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 21:20:37,193 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 21:20:37,193 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 21:20:37,193 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 21:20:37,194 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 21:20:37,194 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 21:20:37,194 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 21:20:37,194 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 21:20:37,194 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 21:20:37,195 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-24 21:20:37,195 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 21:20:37,195 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 21:20:37,195 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 21:20:37,195 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 21:20:37,196 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 21:20:37,196 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 21:20:37,196 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 21:20:37,196 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 21:20:37,197 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 21:20:37,197 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 21:20:37,197 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 21:20:37,197 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-24 21:20:37,197 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 21:20:37,197 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 21:20:37,198 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 21:20:37,198 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 21:20:37,198 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 21:20:37,198 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 21:20:37,198 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 21:20:37,198 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 21:20:37,199 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 21:20:37,199 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 21:20:37,199 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 21:20:37,199 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 21:20:37,199 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 21:20:37,200 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 21:20:37,200 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 21:20:37,200 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 21:20:37,200 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-24 21:20:37,200 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 21:20:37,200 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 21:20:37,201 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 21:20:37,201 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 21:20:37,201 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 21:20:37,201 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 21:20:37,201 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 21:20:37,201 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 21:20:37,202 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 21:20:37,202 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 21:20:37,202 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-24 21:20:37,202 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 21:20:37,202 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 21:20:37,202 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 21:20:37,203 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 21:20:37,203 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 21:20:37,203 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 21:20:37,203 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 21:20:37,203 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 21:20:37,203 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 21:20:37,204 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 21:20:37,204 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 21:20:37,204 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 21:20:37,204 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 21:20:37,204 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 21:20:37,204 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 21:20:37,204 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 21:20:37,205 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 21:20:37,205 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 21:20:37,205 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 21:20:37,205 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 21:20:37,205 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 21:20:37,205 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 21:20:37,206 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 21:20:37,206 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 21:20:37,206 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 21:20:37,206 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 21:20:37,206 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 21:20:37,206 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 21:20:37,207 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 21:20:37,207 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 21:20:37,207 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 21:20:37,207 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 21:20:38,374 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 21:20:38,375 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 21:20:38,382 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:20:38 BoogieIcfgContainer
[2020-09-24 21:20:38,382 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 21:20:38,384 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 21:20:38,384 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 21:20:38,388 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 21:20:38,388 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:20:36" (1/3) ...
[2020-09-24 21:20:38,389 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@155caa1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:20:38, skipping insertion in model container
[2020-09-24 21:20:38,389 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:36" (2/3) ...
[2020-09-24 21:20:38,390 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@155caa1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:20:38, skipping insertion in model container
[2020-09-24 21:20:38,390 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:20:38" (3/3) ...
[2020-09-24 21:20:38,392 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product03.cil.c
[2020-09-24 21:20:38,405 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 21:20:38,416 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 21:20:38,437 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 21:20:38,467 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 21:20:38,467 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 21:20:38,468 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 21:20:38,468 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 21:20:38,468 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 21:20:38,468 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 21:20:38,468 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 21:20:38,468 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 21:20:38,497 INFO  L276                IsEmpty]: Start isEmpty. Operand 267 states.
[2020-09-24 21:20:38,515 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-24 21:20:38,515 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 21:20:38,517 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 21:20:38,517 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 21:20:38,525 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 21:20:38,525 INFO  L82        PathProgramCache]: Analyzing trace with hash -995917748, now seen corresponding path program 1 times
[2020-09-24 21:20:38,534 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 21:20:38,534 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [75781202]
[2020-09-24 21:20:38,535 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 21:20:38,890 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:20:39,024 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:20:39,232 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:20:40,737 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:20:43,899 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:20:43,900 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-24 21:20:43,900 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 21:20:43,901 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5000
[2020-09-24 21:20:43,904 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:20:43,904 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-24 21:20:43,905 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 78
[2020-09-24 21:20:43,905 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 62
[2020-09-24 21:20:43,906 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-24 21:20:44,379 WARN  L193               SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 21:20:44,386 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 21:20:44,444 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:20:44,494 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:20:44,796 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:20:44,796 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 21:20:44,797 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:20:44,797 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 350
[2020-09-24 21:20:44,797 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:20:44,798 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:20:44,798 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:20:44,798 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 74
[2020-09-24 21:20:44,798 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:20:44,883 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 21:20:44,885 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:20:44,887 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:20:44,891 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:20:44,891 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:20:44,891 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:20:44,892 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 21:20:44,892 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:20:44,892 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:20:44,892 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:20:44,893 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:20:44,893 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:20:44,895 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 21:20:44,896 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:20:44,898 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:20:44,902 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:20:44,902 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:20:44,903 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:20:44,903 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 21:20:44,903 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:20:44,903 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:20:44,904 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:20:44,904 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:20:44,904 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:20:44,906 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 21:20:44,907 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:20:44,909 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:20:44,918 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:20:44,919 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:20:44,919 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:20:44,920 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-24 21:20:44,920 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:20:44,921 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:20:44,921 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:20:44,921 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 21:20:44,922 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:20:44,924 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 21:20:44,926 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:20:44,927 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:20:44,931 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:20:44,932 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:20:44,932 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:20:44,932 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 21:20:44,933 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:20:44,933 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:20:44,934 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:20:44,934 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:20:44,934 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:20:44,936 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-24 21:20:44,937 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:20:44,939 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:20:44,941 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:20:44,941 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:20:44,941 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:20:44,942 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 21:20:44,942 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:20:44,942 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:20:44,942 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 21:20:44,943 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:20:44,943 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:20:44,945 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-24 21:20:44,946 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:20:44,947 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:20:44,949 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:20:44,950 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:20:44,950 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:20:44,950 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 21:20:44,950 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:20:44,951 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:20:44,951 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 21:20:44,951 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:20:44,951 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:20:44,953 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-24 21:20:44,954 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:20:44,956 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:20:44,963 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:20:44,963 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:20:44,963 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:20:44,963 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 21:20:44,964 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:20:44,964 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:20:44,964 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 21:20:44,964 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:20:44,965 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:20:45,040 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 21:20:45,041 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [75781202]
[2020-09-24 21:20:45,043 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 21:20:45,043 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-24 21:20:45,044 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357850710]
[2020-09-24 21:20:45,053 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-24 21:20:45,053 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 21:20:45,072 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-24 21:20:45,074 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-24 21:20:45,076 INFO  L87              Difference]: Start difference. First operand 267 states. Second operand 4 states.
[2020-09-24 21:20:45,764 WARN  L193               SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 21:20:47,376 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 21:20:47,377 INFO  L93              Difference]: Finished difference Result 513 states and 628 transitions.
[2020-09-24 21:20:47,378 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-09-24 21:20:47,379 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 153
[2020-09-24 21:20:47,381 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 21:20:47,401 INFO  L225             Difference]: With dead ends: 513
[2020-09-24 21:20:47,402 INFO  L226             Difference]: Without dead ends: 363
[2020-09-24 21:20:47,408 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 21:20:47,432 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 363 states.
[2020-09-24 21:20:47,575 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 298.
[2020-09-24 21:20:47,577 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 298 states.
[2020-09-24 21:20:47,580 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 327 transitions.
[2020-09-24 21:20:47,583 INFO  L78                 Accepts]: Start accepts. Automaton has 298 states and 327 transitions. Word has length 153
[2020-09-24 21:20:47,587 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 21:20:47,587 INFO  L479      AbstractCegarLoop]: Abstraction has 298 states and 327 transitions.
[2020-09-24 21:20:47,587 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-24 21:20:47,588 INFO  L276                IsEmpty]: Start isEmpty. Operand 298 states and 327 transitions.
[2020-09-24 21:20:47,602 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 158
[2020-09-24 21:20:47,602 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 21:20:47,603 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 21:20:47,603 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 21:20:47,603 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 21:20:47,603 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 21:20:47,604 INFO  L82        PathProgramCache]: Analyzing trace with hash 1143741879, now seen corresponding path program 1 times
[2020-09-24 21:20:47,604 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 21:20:47,604 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1130139916]
[2020-09-24 21:20:47,604 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 21:20:47,659 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:20:47,714 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:20:47,920 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:20:50,964 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:20:50,964 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 192
[2020-09-24 21:20:50,965 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 21:20:50,965 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3302
[2020-09-24 21:20:50,965 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:20:50,966 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-24 21:20:50,966 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 81
[2020-09-24 21:20:50,966 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 95
[2020-09-24 21:20:50,966 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:20:51,316 WARN  L193               SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 21:20:51,318 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 21:20:51,357 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:20:51,410 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:20:51,649 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:20:51,650 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 21:20:51,650 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:20:51,650 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 289
[2020-09-24 21:20:51,650 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:20:51,651 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:20:51,651 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:20:51,651 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 77
[2020-09-24 21:20:51,651 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:20:51,712 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 21:20:51,713 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:20:51,718 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:20:51,720 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:20:51,721 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:20:51,721 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:20:51,721 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 21:20:51,721 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:20:51,722 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:20:51,722 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:20:51,722 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:20:51,722 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:20:51,725 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 21:20:51,728 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:20:51,729 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:20:51,732 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:20:51,733 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:20:51,733 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:20:51,733 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 21:20:51,733 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:20:51,734 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:20:51,734 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:20:51,734 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:20:51,734 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:20:51,737 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 21:20:51,738 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:20:51,774 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:20:51,792 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:20:51,793 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:20:51,793 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:20:51,793 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 20
[2020-09-24 21:20:51,793 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:20:51,793 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:20:51,794 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:20:51,794 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 21:20:51,794 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:20:51,796 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 21:20:51,797 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:20:51,798 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:20:51,802 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:20:51,802 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:20:51,802 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:20:51,803 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 21:20:51,803 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:20:51,803 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:20:51,804 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:20:51,804 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:20:51,804 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:20:51,805 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118
[2020-09-24 21:20:51,806 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:20:51,808 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:20:51,810 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:20:51,810 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:20:51,811 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:20:51,811 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 21:20:51,811 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:20:51,811 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:20:51,812 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:20:51,812 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:20:51,812 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:20:51,814 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125
[2020-09-24 21:20:51,815 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:20:51,817 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:20:51,821 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:20:51,821 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:20:51,821 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:20:51,821 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 21:20:51,822 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:20:51,822 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:20:51,822 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:20:51,822 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 21:20:51,823 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:20:51,825 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135
[2020-09-24 21:20:51,826 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:20:51,827 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:20:51,835 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:20:51,835 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:20:51,835 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:20:51,835 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 21:20:51,836 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:20:51,836 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 21:20:51,836 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:20:51,836 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 21:20:51,837 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:20:51,917 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145
[2020-09-24 21:20:51,918 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:20:51,920 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:20:51,921 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:20:51,921 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:20:51,921 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:20:51,922 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 21:20:51,923 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:20:51,924 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:20:51,924 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 21:20:51,925 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:20:51,926 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-24 21:20:51,959 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 21:20:51,960 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1130139916]
[2020-09-24 21:20:51,960 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 21:20:51,960 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2020-09-24 21:20:51,961 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456354897]
[2020-09-24 21:20:51,963 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-24 21:20:51,963 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 21:20:51,964 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-24 21:20:51,964 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2020-09-24 21:20:51,964 INFO  L87              Difference]: Start difference. First operand 298 states and 327 transitions. Second operand 9 states.
[2020-09-24 21:20:52,551 WARN  L193               SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 21:20:54,219 WARN  L193               SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 188
[2020-09-24 21:20:54,833 WARN  L193               SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 190
[2020-09-24 21:20:55,199 WARN  L193               SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 21:20:55,525 WARN  L193               SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-24 21:20:55,823 WARN  L193               SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 21:20:56,240 WARN  L193               SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-24 21:20:56,605 WARN  L193               SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 198
[2020-09-24 21:20:57,032 WARN  L193               SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 21:20:57,771 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 21:20:57,771 INFO  L93              Difference]: Finished difference Result 730 states and 892 transitions.
[2020-09-24 21:20:57,773 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2020-09-24 21:20:57,773 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 157
[2020-09-24 21:20:57,775 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 21:20:57,781 INFO  L225             Difference]: With dead ends: 730
[2020-09-24 21:20:57,781 INFO  L226             Difference]: Without dead ends: 509
[2020-09-24 21:20:57,785 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306
[2020-09-24 21:20:57,787 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 509 states.
[2020-09-24 21:20:57,864 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 455.
[2020-09-24 21:20:57,865 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 455 states.
[2020-09-24 21:20:57,868 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 513 transitions.
[2020-09-24 21:20:57,868 INFO  L78                 Accepts]: Start accepts. Automaton has 455 states and 513 transitions. Word has length 157
[2020-09-24 21:20:57,869 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 21:20:57,869 INFO  L479      AbstractCegarLoop]: Abstraction has 455 states and 513 transitions.
[2020-09-24 21:20:57,869 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-09-24 21:20:57,870 INFO  L276                IsEmpty]: Start isEmpty. Operand 455 states and 513 transitions.
[2020-09-24 21:20:57,874 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 172
[2020-09-24 21:20:57,874 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 21:20:57,874 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 21:20:57,874 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 21:20:57,875 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 21:20:57,875 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 21:20:57,875 INFO  L82        PathProgramCache]: Analyzing trace with hash -1257129521, now seen corresponding path program 1 times
[2020-09-24 21:20:57,875 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 21:20:57,876 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [932843133]
[2020-09-24 21:20:57,876 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 21:20:57,942 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-24 21:20:57,950 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-24 21:20:57,951 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-24 21:20:57,957 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 21:20:57,986 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 09:20:57 BoogieIcfgContainer
[2020-09-24 21:20:57,986 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 21:20:57,988 INFO  L168              Benchmark]: Toolchain (without parser) took 21686.22 ms. Allocated memory was 138.9 MB in the beginning and 506.5 MB in the end (delta: 367.5 MB). Free memory was 101.2 MB in the beginning and 320.4 MB in the end (delta: -219.2 MB). Peak memory consumption was 148.3 MB. Max. memory is 7.1 GB.
[2020-09-24 21:20:57,989 INFO  L168              Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-24 21:20:57,990 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 670.74 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 100.5 MB in the beginning and 170.8 MB in the end (delta: -70.3 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB.
[2020-09-24 21:20:57,991 INFO  L168              Benchmark]: Boogie Preprocessor took 111.51 ms. Allocated memory is still 201.9 MB. Free memory was 170.8 MB in the beginning and 166.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB.
[2020-09-24 21:20:57,992 INFO  L168              Benchmark]: RCFGBuilder took 1293.15 ms. Allocated memory was 201.9 MB in the beginning and 234.4 MB in the end (delta: 32.5 MB). Free memory was 166.7 MB in the beginning and 181.8 MB in the end (delta: -15.1 MB). Peak memory consumption was 85.3 MB. Max. memory is 7.1 GB.
[2020-09-24 21:20:57,993 INFO  L168              Benchmark]: TraceAbstraction took 19602.30 ms. Allocated memory was 234.4 MB in the beginning and 506.5 MB in the end (delta: 272.1 MB). Free memory was 181.8 MB in the beginning and 320.4 MB in the end (delta: -138.6 MB). Peak memory consumption was 133.5 MB. Max. memory is 7.1 GB.
[2020-09-24 21:20:57,997 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 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 670.74 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 100.5 MB in the beginning and 170.8 MB in the end (delta: -70.3 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 111.51 ms. Allocated memory is still 201.9 MB. Free memory was 170.8 MB in the beginning and 166.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1293.15 ms. Allocated memory was 201.9 MB in the beginning and 234.4 MB in the end (delta: 32.5 MB). Free memory was 166.7 MB in the beginning and 181.8 MB in the end (delta: -15.1 MB). Peak memory consumption was 85.3 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 19602.30 ms. Allocated memory was 234.4 MB in the beginning and 506.5 MB in the end (delta: 272.1 MB). Free memory was 181.8 MB in the beginning and 320.4 MB in the end (delta: -138.6 MB). Peak memory consumption was 133.5 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 650]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L119]              int pumpRunning  =    0;
[L120]              int systemActive  =    1;
[L411]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L690]              int cleanupTimeShifts  =    4;
[L786]              int waterLevel  =    1;
[L787]              int methaneLevelCritical  =    0;
[L763]              int retValue_acc ;
[L764]              int tmp ;
[L768]  FCALL       select_helpers()
[L769]  FCALL       select_features()
[L770]  CALL, EXPR  valid_product()
[L637]              int retValue_acc ;
[L640]              retValue_acc = 1
[L641]              return (retValue_acc);
[L770]  RET, EXPR   valid_product()
[L770]              tmp = valid_product()
[L772]  COND TRUE   \read(tmp)
[L774]  FCALL       setup()
[L775]  CALL        runTest()
[L757]  CALL        test()
[L46]               int splverifierCounter ;
[L47]               int tmp ;
[L48]               int tmp___0 ;
[L49]               int tmp___1 ;
[L50]               int tmp___2 ;
[L53]               splverifierCounter = 0
[L55]   COND TRUE   1
[L57]   COND TRUE   splverifierCounter < 4
[L63]               tmp = __VERIFIER_nondet_int()
[L65]   COND TRUE   \read(tmp)
[L67]   CALL        waterRise()
[L804]  COND TRUE   waterLevel < 2
[L805]              waterLevel = waterLevel + 1
[L67]   RET         waterRise()
[L73]               tmp___0 = __VERIFIER_nondet_int()
[L75]   COND FALSE  !(\read(tmp___0))
[L83]               tmp___2 = __VERIFIER_nondet_int()
[L85]   COND TRUE   \read(tmp___2)
[L100]  CALL        timeShift()
[L127]  COND FALSE  !(\read(pumpRunning))
[L134]  COND TRUE   \read(systemActive)
[L136]  FCALL       processEnvironment()
[L142]  CALL        __utac_acc__Specification3_spec__1()
[L657]              int tmp ;
[L658]              int tmp___0 ;
[L659]              int tmp___1 ;
[L663]  CALL, EXPR  isMethaneLevelCritical()
[L825]              int retValue_acc ;
[L828]              retValue_acc = methaneLevelCritical
[L829]              return (retValue_acc);
[L663]  RET, EXPR   isMethaneLevelCritical()
[L663]              tmp = isMethaneLevelCritical()
[L665]  COND FALSE  !(\read(tmp))
[L669]  CALL, EXPR  getWaterLevel()
[L857]              int retValue_acc ;
[L860]              retValue_acc = waterLevel
[L861]              return (retValue_acc);
[L669]  RET, EXPR   getWaterLevel()
[L669]              tmp___0 = getWaterLevel()
[L671]  COND TRUE   tmp___0 == 2
[L673]  CALL, EXPR  isPumpRunning()
[L182]              int retValue_acc ;
[L185]              retValue_acc = pumpRunning
[L186]              return (retValue_acc);
[L673]  RET, EXPR   isPumpRunning()
[L673]              tmp___1 = isPumpRunning()
[L675]  COND FALSE  !(\read(tmp___1))
[L679]  CALL        __automaton_fail()
[L650]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 35 procedures, 584 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 19.4s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 8.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 418 SDtfs, 611 SDslu, 783 SDs, 0 SdLazy, 1312 SolverSat, 198 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 4.2s 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, 140676 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...