/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --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_product09.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 13:10:44,875 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 13:10:44,880 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 13:10:44,907 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 13:10:44,907 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 13:10:44,908 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 13:10:44,910 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 13:10:44,912 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 13:10:44,913 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 13:10:44,914 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 13:10:44,915 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 13:10:44,917 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 13:10:44,917 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 13:10:44,918 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 13:10:44,919 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 13:10:44,921 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 13:10:44,921 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 13:10:44,922 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 13:10:44,924 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 13:10:44,926 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 13:10:44,928 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 13:10:44,932 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 13:10:44,933 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 13:10:44,934 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 13:10:44,941 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 13:10:44,941 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 13:10:44,944 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 13:10:44,945 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 13:10:44,946 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 13:10:44,949 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 13:10:44,949 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 13:10:44,950 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 13:10:44,951 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 13:10:44,954 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 13:10:44,956 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 13:10:44,956 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 13:10:44,957 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
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[2020-09-25 13:10:44,957 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2020-09-25 13:10:44,960 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 13:10:44,961 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-25 13:10:45,017 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 13:10:45,018 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 13:10:45,022 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 13:10:45,023 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 13:10:45,023 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 13:10:45,023 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 13:10:45,023 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 13:10:45,023 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 13:10:45,024 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 13:10:45,024 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 13:10:45,024 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 13:10:45,024 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 13:10:45,024 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 13:10:45,026 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 13:10:45,026 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 13:10:45,026 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 13:10:45,026 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 13:10:45,026 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 13:10:45,027 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 13:10:45,027 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 13:10:45,027 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 13:10:45,027 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 13:10:45,027 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 13:10:45,028 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 13:10:45,029 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 13:10:45,029 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 13:10:45,029 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 13:10:45,029 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 13:10:45,030 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 13:10:45,030 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true;
[2020-09-25 13:10:45,514 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 13:10:45,531 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 13:10:45,536 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 13:10:45,538 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 13:10:45,538 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 13:10:45,540 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product09.cil.c
[2020-09-25 13:10:45,638 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/55e576b95/a1104e3bc6ea4658844134741a097ff0/FLAG06e14341a
[2020-09-25 13:10:46,270 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 13:10:46,271 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product09.cil.c
[2020-09-25 13:10:46,286 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/55e576b95/a1104e3bc6ea4658844134741a097ff0/FLAG06e14341a
[2020-09-25 13:10:46,538 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/55e576b95/a1104e3bc6ea4658844134741a097ff0
[2020-09-25 13:10:46,551 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 13:10:46,557 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 13:10:46,558 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 13:10:46,558 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 13:10:46,563 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 13:10:46,564 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:10:46" (1/1) ...
[2020-09-25 13:10:46,568 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bbc2ce6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:46, skipping insertion in model container
[2020-09-25 13:10:46,568 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:10:46" (1/1) ...
[2020-09-25 13:10:46,577 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 13:10:46,628 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 13:10:47,081 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 13:10:47,098 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 13:10:47,232 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 13:10:47,270 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 13:10:47,271 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:47 WrapperNode
[2020-09-25 13:10:47,271 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 13:10:47,272 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 13:10:47,272 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 13:10:47,272 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 13:10:47,291 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:47" (1/1) ...
[2020-09-25 13:10:47,291 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:47" (1/1) ...
[2020-09-25 13:10:47,313 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:47" (1/1) ...
[2020-09-25 13:10:47,314 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:47" (1/1) ...
[2020-09-25 13:10:47,347 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:47" (1/1) ...
[2020-09-25 13:10:47,366 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:47" (1/1) ...
[2020-09-25 13:10:47,373 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:47" (1/1) ...
[2020-09-25 13:10:47,393 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 13:10:47,394 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 13:10:47,394 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 13:10:47,394 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 13:10:47,398 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:47" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 13:10:47,498 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 13:10:47,498 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 13:10:47,498 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 13:10:47,499 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 13:10:47,499 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 13:10:47,500 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 13:10:47,500 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 13:10:47,501 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 13:10:47,501 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 13:10:47,501 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 13:10:47,501 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 13:10:47,502 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 13:10:47,502 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base
[2020-09-25 13:10:47,502 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 13:10:47,502 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 13:10:47,505 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 13:10:47,505 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 13:10:47,505 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 13:10:47,506 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 13:10:47,506 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 13:10:47,506 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 13:10:47,507 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 13:10:47,507 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 13:10:47,507 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 13:10:47,507 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 13:10:47,507 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 13:10:47,507 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 13:10:47,508 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 13:10:47,508 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 13:10:47,508 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 13:10:47,508 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 13:10:47,508 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 13:10:47,508 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 13:10:47,508 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 13:10:47,509 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 13:10:47,509 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 13:10:47,509 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 13:10:47,509 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 13:10:47,510 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 13:10:47,510 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 13:10:47,510 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 13:10:47,510 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 13:10:47,510 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 13:10:47,510 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 13:10:47,511 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 13:10:47,511 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 13:10:47,512 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 13:10:47,512 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 13:10:47,512 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 13:10:47,513 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 13:10:47,513 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 13:10:47,513 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 13:10:47,513 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 13:10:47,514 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 13:10:47,514 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 13:10:47,514 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 13:10:47,514 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 13:10:47,514 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 13:10:47,514 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 13:10:47,515 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 13:10:47,515 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base
[2020-09-25 13:10:47,515 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 13:10:47,515 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 13:10:47,515 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 13:10:47,516 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 13:10:47,516 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 13:10:47,516 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 13:10:47,516 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 13:10:47,516 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 13:10:47,517 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 13:10:47,517 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 13:10:47,519 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 13:10:47,519 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 13:10:47,519 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 13:10:47,519 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 13:10:47,519 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 13:10:47,519 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 13:10:47,520 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 13:10:47,520 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 13:10:47,520 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 13:10:47,520 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 13:10:47,520 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 13:10:47,521 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 13:10:47,521 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 13:10:48,700 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 13:10:48,701 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 13:10:48,708 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:10:48 BoogieIcfgContainer
[2020-09-25 13:10:48,708 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 13:10:48,710 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 13:10:48,710 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 13:10:48,714 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 13:10:48,714 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:10:46" (1/3) ...
[2020-09-25 13:10:48,715 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7649af98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:10:48, skipping insertion in model container
[2020-09-25 13:10:48,715 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:47" (2/3) ...
[2020-09-25 13:10:48,716 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7649af98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:10:48, skipping insertion in model container
[2020-09-25 13:10:48,716 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:10:48" (3/3) ...
[2020-09-25 13:10:48,718 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product09.cil.c
[2020-09-25 13:10:48,730 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 13:10:48,742 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 13:10:48,765 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 13:10:48,797 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 13:10:48,798 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 13:10:48,798 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 13:10:48,798 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 13:10:48,798 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 13:10:48,798 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 13:10:48,798 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 13:10:48,798 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 13:10:48,823 INFO  L276                IsEmpty]: Start isEmpty. Operand 268 states.
[2020-09-25 13:10:48,840 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 13:10:48,840 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 13:10:48,842 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 13:10:48,842 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 13:10:48,848 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 13:10:48,849 INFO  L82        PathProgramCache]: Analyzing trace with hash -2059425041, now seen corresponding path program 1 times
[2020-09-25 13:10:48,859 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 13:10:48,860 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1198075320]
[2020-09-25 13:10:48,860 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 13:10:49,236 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:49,394 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:49,610 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:50,101 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:53,561 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:53,563 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 13:10:53,563 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 13:10:53,563 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4313
[2020-09-25 13:10:53,570 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:53,578 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:53,578 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:10:53,579 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 79
[2020-09-25 13:10:53,579 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 61
[2020-09-25 13:10:53,579 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 15
[2020-09-25 13:10:54,175 WARN  L193               SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 13:10:54,180 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 13:10:54,235 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:54,282 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:54,555 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:54,555 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 13:10:54,555 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:54,556 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 319
[2020-09-25 13:10:54,556 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:54,557 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:54,558 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:10:54,566 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:10:54,567 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 75
[2020-09-25 13:10:54,567 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 10
[2020-09-25 13:10:54,650 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 13:10:54,652 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:54,655 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:54,660 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:54,661 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:10:54,661 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:54,661 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 13:10:54,662 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:54,662 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:54,662 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:10:54,662 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:10:54,663 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:10:54,663 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:54,668 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 13:10:54,670 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:54,672 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:54,677 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:54,677 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:10:54,678 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:54,678 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 13:10:54,678 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:54,678 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:54,679 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:10:54,679 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:10:54,679 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:10:54,679 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:54,685 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 13:10:54,686 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:54,689 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:54,699 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:54,699 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:10:54,699 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:54,700 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-25 13:10:54,700 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:54,700 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:54,700 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:10:54,701 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:10:54,701 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 13:10:54,701 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:54,707 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 13:10:54,708 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:54,710 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:54,718 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:54,719 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:10:54,719 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:54,720 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-25 13:10:54,720 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:54,720 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:54,720 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:10:54,721 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:10:54,721 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:10:54,721 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:54,724 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 13:10:54,725 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:54,727 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:54,729 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:54,730 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:10:54,730 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:54,730 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 13:10:54,731 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:54,731 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:54,731 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:10:54,731 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 13:10:54,731 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:10:54,732 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:54,738 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 13:10:54,740 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:54,741 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:54,745 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:54,746 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:10:54,746 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:54,746 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 13:10:54,746 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:54,747 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:54,747 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:10:54,747 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 13:10:54,748 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:10:54,748 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:54,751 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 13:10:54,755 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:54,756 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:54,759 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:54,759 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:10:54,759 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:54,759 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 13:10:54,760 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:54,760 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:54,760 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:10:54,760 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 13:10:54,761 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:10:54,761 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:54,848 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 13:10:54,849 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1198075320]
[2020-09-25 13:10:54,851 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 13:10:54,851 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-25 13:10:54,852 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210822288]
[2020-09-25 13:10:54,863 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-25 13:10:54,864 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 13:10:54,882 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-25 13:10:54,883 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-25 13:10:54,886 INFO  L87              Difference]: Start difference. First operand 268 states. Second operand 4 states.
[2020-09-25 13:10:55,550 WARN  L193               SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 13:10:56,526 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 13:10:56,526 INFO  L93              Difference]: Finished difference Result 365 states and 438 transitions.
[2020-09-25 13:10:56,527 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-09-25 13:10:56,529 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 153
[2020-09-25 13:10:56,530 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 13:10:56,562 INFO  L225             Difference]: With dead ends: 365
[2020-09-25 13:10:56,567 INFO  L226             Difference]: Without dead ends: 238
[2020-09-25 13:10:56,575 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-09-25 13:10:56,602 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 238 states.
[2020-09-25 13:10:56,706 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 201.
[2020-09-25 13:10:56,707 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 201 states.
[2020-09-25 13:10:56,710 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 214 transitions.
[2020-09-25 13:10:56,712 INFO  L78                 Accepts]: Start accepts. Automaton has 201 states and 214 transitions. Word has length 153
[2020-09-25 13:10:56,713 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 13:10:56,713 INFO  L479      AbstractCegarLoop]: Abstraction has 201 states and 214 transitions.
[2020-09-25 13:10:56,714 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-25 13:10:56,714 INFO  L276                IsEmpty]: Start isEmpty. Operand 201 states and 214 transitions.
[2020-09-25 13:10:56,718 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 158
[2020-09-25 13:10:56,718 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 13:10:56,719 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]
[2020-09-25 13:10:56,719 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 13:10:56,719 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 13:10:56,720 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 13:10:56,720 INFO  L82        PathProgramCache]: Analyzing trace with hash 1046525994, now seen corresponding path program 1 times
[2020-09-25 13:10:56,720 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 13:10:56,721 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1070758933]
[2020-09-25 13:10:56,721 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 13:10:56,777 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:56,835 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:57,035 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:59,820 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:59,820 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 192
[2020-09-25 13:10:59,821 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 13:10:59,821 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3039
[2020-09-25 13:10:59,821 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:59,821 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:59,822 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 13:10:59,822 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 81
[2020-09-25 13:10:59,822 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 95
[2020-09-25 13:10:59,822 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:00,180 WARN  L193               SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 13:11:00,181 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 13:11:00,216 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:00,255 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:00,473 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:00,474 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 13:11:00,474 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:00,474 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 256
[2020-09-25 13:11:00,474 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:00,475 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:00,475 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:00,475 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:00,475 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 77
[2020-09-25 13:11:00,476 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:00,538 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 13:11:00,539 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:00,540 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:00,543 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:00,543 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:11:00,544 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:00,544 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 13:11:00,544 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:00,544 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:00,545 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:00,545 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:00,545 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:11:00,545 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:00,547 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 13:11:00,547 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:00,548 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:00,552 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:00,552 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:11:00,553 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:00,553 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 13:11:00,553 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:00,554 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:00,554 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:00,554 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:00,555 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:11:00,555 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:00,557 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 13:11:00,558 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:00,560 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:00,569 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:00,570 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:11:00,570 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:00,570 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 13:11:00,571 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:00,571 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:00,571 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:00,572 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:00,572 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 13:11:00,572 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:00,574 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 13:11:00,575 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:00,576 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:00,579 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:00,579 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:11:00,579 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:00,580 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 13:11:00,580 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:00,580 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:00,580 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:00,581 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:00,581 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:11:00,581 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 13:11:00,582 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118
[2020-09-25 13:11:00,583 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:00,584 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:00,586 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:00,587 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:11:00,587 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:00,587 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 13:11:00,587 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:00,588 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:00,588 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:00,588 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:00,588 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:11:00,589 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:00,590 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125
[2020-09-25 13:11:00,591 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:00,592 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:00,595 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:00,596 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:11:00,596 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:00,596 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 13:11:00,596 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:00,596 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:00,597 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:00,597 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:00,597 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 13:11:00,597 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:00,599 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135
[2020-09-25 13:11:00,600 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:00,602 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:00,609 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:00,610 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:11:00,610 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:00,656 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 13:11:00,657 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:00,657 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:00,657 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 13:11:00,657 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:00,658 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 13:11:00,658 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:00,689 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145
[2020-09-25 13:11:00,690 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:00,692 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:00,694 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:00,694 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:11:00,694 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:00,694 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 13:11:00,695 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:00,695 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:00,695 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:11:00,695 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 13:11:00,696 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:11:00,696 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:00,750 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 13:11:00,751 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1070758933]
[2020-09-25 13:11:00,751 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 13:11:00,752 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2020-09-25 13:11:00,752 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585551105]
[2020-09-25 13:11:00,756 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-25 13:11:00,756 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 13:11:00,757 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-25 13:11:00,757 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2020-09-25 13:11:00,757 INFO  L87              Difference]: Start difference. First operand 201 states and 214 transitions. Second operand 9 states.
[2020-09-25 13:11:01,376 WARN  L193               SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 13:11:02,792 WARN  L193               SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 13:11:03,107 WARN  L193               SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 13:11:03,453 WARN  L193               SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 13:11:03,811 WARN  L193               SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-25 13:11:04,145 WARN  L193               SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 13:11:04,553 WARN  L193               SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 13:11:04,874 WARN  L193               SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 13:11:05,261 WARN  L193               SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 13:11:05,972 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 13:11:05,972 INFO  L93              Difference]: Finished difference Result 419 states and 500 transitions.
[2020-09-25 13:11:05,973 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2020-09-25 13:11:05,974 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 157
[2020-09-25 13:11:05,975 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 13:11:05,978 INFO  L225             Difference]: With dead ends: 419
[2020-09-25 13:11:05,979 INFO  L226             Difference]: Without dead ends: 311
[2020-09-25 13:11:05,981 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306
[2020-09-25 13:11:05,983 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 311 states.
[2020-09-25 13:11:06,049 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 275.
[2020-09-25 13:11:06,049 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 275 states.
[2020-09-25 13:11:06,051 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 301 transitions.
[2020-09-25 13:11:06,051 INFO  L78                 Accepts]: Start accepts. Automaton has 275 states and 301 transitions. Word has length 157
[2020-09-25 13:11:06,052 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 13:11:06,052 INFO  L479      AbstractCegarLoop]: Abstraction has 275 states and 301 transitions.
[2020-09-25 13:11:06,052 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-09-25 13:11:06,053 INFO  L276                IsEmpty]: Start isEmpty. Operand 275 states and 301 transitions.
[2020-09-25 13:11:06,057 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 172
[2020-09-25 13:11:06,057 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 13:11:06,057 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]
[2020-09-25 13:11:06,057 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 13:11:06,058 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 13:11:06,058 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 13:11:06,058 INFO  L82        PathProgramCache]: Analyzing trace with hash -645930008, now seen corresponding path program 1 times
[2020-09-25 13:11:06,058 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 13:11:06,059 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [432965641]
[2020-09-25 13:11:06,059 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 13:11:06,122 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 13:11:06,133 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 13:11:06,133 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 13:11:06,140 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 13:11:06,177 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:11:06 BoogieIcfgContainer
[2020-09-25 13:11:06,178 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 13:11:06,181 INFO  L168              Benchmark]: Toolchain (without parser) took 19627.32 ms. Allocated memory was 149.4 MB in the beginning and 450.4 MB in the end (delta: 300.9 MB). Free memory was 103.4 MB in the beginning and 291.0 MB in the end (delta: -187.6 MB). Peak memory consumption was 113.3 MB. Max. memory is 7.1 GB.
[2020-09-25 13:11:06,182 INFO  L168              Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 149.4 MB. Free memory was 122.8 MB in the beginning and 122.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-25 13:11:06,183 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 713.45 ms. Allocated memory was 149.4 MB in the beginning and 205.5 MB in the end (delta: 56.1 MB). Free memory was 102.8 MB in the beginning and 174.5 MB in the end (delta: -71.7 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB.
[2020-09-25 13:11:06,185 INFO  L168              Benchmark]: Boogie Preprocessor took 121.29 ms. Allocated memory is still 205.5 MB. Free memory was 174.5 MB in the beginning and 170.5 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB.
[2020-09-25 13:11:06,190 INFO  L168              Benchmark]: RCFGBuilder took 1314.79 ms. Allocated memory was 205.5 MB in the beginning and 233.3 MB in the end (delta: 27.8 MB). Free memory was 170.5 MB in the beginning and 173.9 MB in the end (delta: -3.5 MB). Peak memory consumption was 79.0 MB. Max. memory is 7.1 GB.
[2020-09-25 13:11:06,200 INFO  L168              Benchmark]: TraceAbstraction took 17468.13 ms. Allocated memory was 233.3 MB in the beginning and 450.4 MB in the end (delta: 217.1 MB). Free memory was 173.9 MB in the beginning and 291.0 MB in the end (delta: -117.1 MB). Peak memory consumption was 99.9 MB. Max. memory is 7.1 GB.
[2020-09-25 13:11:06,213 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.30 ms. Allocated memory is still 149.4 MB. Free memory was 122.8 MB in the beginning and 122.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 713.45 ms. Allocated memory was 149.4 MB in the beginning and 205.5 MB in the end (delta: 56.1 MB). Free memory was 102.8 MB in the beginning and 174.5 MB in the end (delta: -71.7 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 121.29 ms. Allocated memory is still 205.5 MB. Free memory was 174.5 MB in the beginning and 170.5 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1314.79 ms. Allocated memory was 205.5 MB in the beginning and 233.3 MB in the end (delta: 27.8 MB). Free memory was 170.5 MB in the beginning and 173.9 MB in the end (delta: -3.5 MB). Peak memory consumption was 79.0 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 17468.13 ms. Allocated memory was 233.3 MB in the beginning and 450.4 MB in the end (delta: 217.1 MB). Free memory was 173.9 MB in the beginning and 291.0 MB in the end (delta: -117.1 MB). Peak memory consumption was 99.9 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 148]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L40]               int cleanupTimeShifts  =    4;
[L224]              int pumpRunning  =    0;
[L225]              int systemActive  =    1;
[L589]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L786]              int waterLevel  =    1;
[L787]              int methaneLevelCritical  =    0;
[L121]              int retValue_acc ;
[L122]              int tmp ;
[L126]  FCALL       select_helpers()
[L127]  FCALL       select_features()
[L128]  CALL, EXPR  valid_product()
[L411]              int retValue_acc ;
[L414]              retValue_acc = 1
[L415]              return (retValue_acc);
[L128]  RET, EXPR   valid_product()
[L128]              tmp = valid_product()
[L130]  COND TRUE   \read(tmp)
[L132]  FCALL       setup()
[L133]  CALL        runTest()
[L112]  CALL        test()
[L154]              int splverifierCounter ;
[L155]              int tmp ;
[L156]              int tmp___0 ;
[L157]              int tmp___1 ;
[L158]              int tmp___2 ;
[L161]              splverifierCounter = 0
[L163]  COND TRUE   1
[L165]  COND TRUE   splverifierCounter < 4
[L171]              tmp = __VERIFIER_nondet_int()
[L173]  COND TRUE   \read(tmp)
[L175]  CALL        waterRise()
[L804]  COND TRUE   waterLevel < 2
[L805]              waterLevel = waterLevel + 1
[L175]  RET         waterRise()
[L181]              tmp___0 = __VERIFIER_nondet_int()
[L183]  COND FALSE  !(\read(tmp___0))
[L191]              tmp___2 = __VERIFIER_nondet_int()
[L193]  COND TRUE   \read(tmp___2)
[L206]  CALL        timeShift()
[L232]  COND FALSE  !(\read(pumpRunning))
[L239]  COND TRUE   \read(systemActive)
[L241]  FCALL       processEnvironment()
[L247]  CALL        __utac_acc__Specification3_spec__1()
[L352]              int tmp ;
[L353]              int tmp___0 ;
[L354]              int tmp___1 ;
[L358]  CALL, EXPR  isMethaneLevelCritical()
[L825]              int retValue_acc ;
[L828]              retValue_acc = methaneLevelCritical
[L829]              return (retValue_acc);
[L358]  RET, EXPR   isMethaneLevelCritical()
[L358]              tmp = isMethaneLevelCritical()
[L360]  COND FALSE  !(\read(tmp))
[L364]  CALL, EXPR  getWaterLevel()
[L857]              int retValue_acc ;
[L860]              retValue_acc = waterLevel
[L861]              return (retValue_acc);
[L364]  RET, EXPR   getWaterLevel()
[L364]              tmp___0 = getWaterLevel()
[L366]  COND TRUE   tmp___0 == 2
[L368]  CALL, EXPR  isPumpRunning()
[L305]              int retValue_acc ;
[L308]              retValue_acc = pumpRunning
[L309]              return (retValue_acc);
[L368]  RET, EXPR   isPumpRunning()
[L368]              tmp___1 = isPumpRunning()
[L370]  COND FALSE  !(\read(tmp___1))
[L374]  CALL        __automaton_fail()
[L148]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 35 procedures, 587 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 6.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 391 SDtfs, 527 SDslu, 707 SDs, 0 SdLazy, 1112 SolverSat, 168 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=275occurred 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: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 73 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 9.4s InterpolantComputationTime, 481 NumberOfCodeBlocks, 481 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 308 ConstructedInterpolants, 0 QuantifiedInterpolants, 134756 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...