/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_product08.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 13:10:40,233 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 13:10:40,237 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 13:10:40,285 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 13:10:40,286 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 13:10:40,297 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 13:10:40,299 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 13:10:40,301 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 13:10:40,304 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 13:10:40,307 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 13:10:40,308 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 13:10:40,309 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 13:10:40,309 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 13:10:40,312 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 13:10:40,315 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 13:10:40,317 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 13:10:40,317 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 13:10:40,321 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 13:10:40,322 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 13:10:40,326 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 13:10:40,330 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 13:10:40,331 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 13:10:40,333 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 13:10:40,333 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 13:10:40,338 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 13:10:40,338 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 13:10:40,338 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 13:10:40,341 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 13:10:40,342 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 13:10:40,343 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 13:10:40,343 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 13:10:40,344 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 13:10:40,345 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 13:10:40,345 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 13:10:40,347 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 13:10:40,347 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 13:10:40,348 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 13:10:40,348 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 13:10:40,348 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 13:10:40,349 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 13:10:40,351 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 13:10:40,352 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 13:10:40,400 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 13:10:40,400 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 13:10:40,403 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 13:10:40,403 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 13:10:40,403 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 13:10:40,403 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 13:10:40,404 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 13:10:40,404 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 13:10:40,404 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 13:10:40,404 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 13:10:40,406 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 13:10:40,406 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 13:10:40,406 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 13:10:40,406 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 13:10:40,407 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 13:10:40,407 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 13:10:40,407 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 13:10:40,407 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 13:10:40,407 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 13:10:40,408 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 13:10:40,408 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 13:10:40,408 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 13:10:40,408 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 13:10:40,408 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 13:10:40,409 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 13:10:40,409 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 13:10:40,409 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 13:10:40,409 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 13:10:40,409 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 13:10:40,410 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 13:10:40,877 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 13:10:40,905 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 13:10:40,910 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 13:10:40,912 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 13:10:40,913 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 13:10:40,914 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product08.cil.c
[2020-09-25 13:10:41,009 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b5ef9b746/f90c76a7d0fc4ffbb279f4c7d29ffda5/FLAGf818055bc
[2020-09-25 13:10:41,668 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 13:10:41,669 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product08.cil.c
[2020-09-25 13:10:41,686 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b5ef9b746/f90c76a7d0fc4ffbb279f4c7d29ffda5/FLAGf818055bc
[2020-09-25 13:10:41,907 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b5ef9b746/f90c76a7d0fc4ffbb279f4c7d29ffda5
[2020-09-25 13:10:41,920 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 13:10:41,926 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 13:10:41,927 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 13:10:41,927 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 13:10:41,932 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 13:10:41,934 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:10:41" (1/1) ...
[2020-09-25 13:10:41,939 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:41, skipping insertion in model container
[2020-09-25 13:10:41,939 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:10:41" (1/1) ...
[2020-09-25 13:10:41,950 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 13:10:42,016 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 13:10:42,522 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 13:10:42,550 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 13:10:42,632 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 13:10:42,689 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 13:10:42,691 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:42 WrapperNode
[2020-09-25 13:10:42,691 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 13:10:42,692 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 13:10:42,693 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 13:10:42,693 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 13:10:42,707 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:42" (1/1) ...
[2020-09-25 13:10:42,707 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:42" (1/1) ...
[2020-09-25 13:10:42,727 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:42" (1/1) ...
[2020-09-25 13:10:42,728 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:42" (1/1) ...
[2020-09-25 13:10:42,762 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:42" (1/1) ...
[2020-09-25 13:10:42,774 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:42" (1/1) ...
[2020-09-25 13:10:42,783 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:42" (1/1) ...
[2020-09-25 13:10:42,799 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 13:10:42,801 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 13:10:42,801 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 13:10:42,801 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 13:10:42,804 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:42" (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 13:10:42,905 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 13:10:42,905 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 13:10:42,905 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 13:10:42,906 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 13:10:42,906 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 13:10:42,906 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 13:10:42,906 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 13:10:42,907 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 13:10:42,908 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 13:10:42,908 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 13:10:42,908 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 13:10:42,908 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 13:10:42,908 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 13:10:42,909 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 13:10:42,909 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 13:10:42,910 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 13:10:42,910 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 13:10:42,910 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 13:10:42,910 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 13:10:42,911 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-25 13:10:42,911 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 13:10:42,911 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 13:10:42,911 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 13:10:42,912 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 13:10:42,912 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 13:10:42,913 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 13:10:42,913 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-25 13:10:42,913 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-25 13:10:42,913 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 13:10:42,913 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 13:10:42,913 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 13:10:42,914 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 13:10:42,914 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 13:10:42,914 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 13:10:42,914 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 13:10:42,914 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 13:10:42,914 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 13:10:42,915 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 13:10:42,915 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 13:10:42,915 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 13:10:42,915 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 13:10:42,915 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 13:10:42,915 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 13:10:42,916 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 13:10:42,916 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 13:10:42,916 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 13:10:42,916 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 13:10:42,916 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 13:10:42,916 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 13:10:42,917 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 13:10:42,917 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 13:10:42,917 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 13:10:42,918 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 13:10:42,918 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 13:10:42,918 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 13:10:42,918 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 13:10:42,918 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 13:10:42,918 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 13:10:42,919 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 13:10:42,919 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 13:10:42,919 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 13:10:42,919 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 13:10:42,919 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 13:10:42,920 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 13:10:42,920 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 13:10:42,920 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 13:10:42,920 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-25 13:10:42,920 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-25 13:10:42,920 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 13:10:42,921 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 13:10:42,921 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 13:10:42,923 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 13:10:42,923 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 13:10:42,923 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 13:10:42,923 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 13:10:42,924 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-25 13:10:42,924 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 13:10:42,924 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 13:10:42,924 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 13:10:42,924 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 13:10:42,924 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 13:10:42,924 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 13:10:42,926 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 13:10:42,926 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 13:10:42,926 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 13:10:42,926 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 13:10:42,926 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 13:10:42,926 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 13:10:44,236 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 13:10:44,237 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 13:10:44,250 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:10:44 BoogieIcfgContainer
[2020-09-25 13:10:44,251 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 13:10:44,253 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 13:10:44,253 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 13:10:44,258 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 13:10:44,258 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:10:41" (1/3) ...
[2020-09-25 13:10:44,259 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23beae8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:10:44, skipping insertion in model container
[2020-09-25 13:10:44,259 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:42" (2/3) ...
[2020-09-25 13:10:44,260 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23beae8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:10:44, skipping insertion in model container
[2020-09-25 13:10:44,260 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:10:44" (3/3) ...
[2020-09-25 13:10:44,263 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product08.cil.c
[2020-09-25 13:10:44,274 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 13:10:44,287 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 13:10:44,309 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 13:10:44,337 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 13:10:44,338 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 13:10:44,338 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 13:10:44,338 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 13:10:44,338 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 13:10:44,338 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 13:10:44,339 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 13:10:44,339 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 13:10:44,363 INFO  L276                IsEmpty]: Start isEmpty. Operand 285 states.
[2020-09-25 13:10:44,380 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 13:10:44,381 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 13:10:44,382 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 13:10:44,382 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 13:10:44,389 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 13:10:44,389 INFO  L82        PathProgramCache]: Analyzing trace with hash -1628156155, now seen corresponding path program 1 times
[2020-09-25 13:10:44,401 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 13:10:44,401 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2125071851]
[2020-09-25 13:10:44,402 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 13:10:44,716 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:44,863 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:45,107 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:46,885 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:49,785 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:49,786 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 13:10:49,786 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 13:10:49,786 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5056
[2020-09-25 13:10:49,791 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:49,791 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:49,792 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 13:10:49,792 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 81
[2020-09-25 13:10:49,792 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 59
[2020-09-25 13:10:49,793 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 6
[2020-09-25 13:10:50,222 WARN  L193               SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 13:10:50,224 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 13:10:50,275 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:50,323 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:50,600 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:50,600 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 13:10:50,600 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:50,603 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 324
[2020-09-25 13:10:50,603 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:50,604 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:50,604 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:10:50,604 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:10:50,604 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 77
[2020-09-25 13:10:50,604 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:50,741 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 13:10:50,743 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:50,747 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:50,756 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:50,756 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:10:50,756 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:50,757 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 12
[2020-09-25 13:10:50,757 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:50,757 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:50,757 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:10:50,758 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:10:50,758 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:10:50,758 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:50,763 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 13:10:50,766 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:50,768 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:50,776 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:50,776 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:10:50,777 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:50,777 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 13:10:50,777 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:50,777 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:50,778 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:10:50,778 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:10:50,778 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:10:50,778 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:50,781 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 13:10:50,783 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:50,786 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:50,798 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:50,798 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:10:50,799 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:50,799 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 14
[2020-09-25 13:10:50,799 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:50,800 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:50,800 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:10:50,801 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:10:50,801 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 13:10:50,801 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 13:10:50,804 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 13:10:50,806 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:50,808 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:50,814 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:50,814 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:10:50,814 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:50,815 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 13:10:50,815 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:50,815 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:50,815 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:10:50,816 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:10:50,816 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:10:50,816 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:50,818 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 13:10:50,820 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:50,824 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:50,826 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:50,828 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:10:50,829 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:50,829 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 13:10:50,829 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:50,830 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:50,830 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:10:50,830 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 13:10:50,830 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:10:50,830 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:50,833 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 13:10:50,834 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:50,836 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:50,839 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:50,839 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:10:50,839 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:50,840 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 13:10:50,840 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:50,840 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:50,840 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:10:50,841 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 13:10:50,841 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:10:50,841 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:50,844 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 13:10:50,848 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:50,850 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:50,854 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:50,855 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:10:50,855 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:50,855 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 13:10:50,855 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:50,856 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:50,856 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:10:50,856 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 13:10:50,856 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:10:50,857 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:50,940 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 13:10:50,941 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2125071851]
[2020-09-25 13:10:50,945 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 13:10:50,946 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-25 13:10:50,947 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111733138]
[2020-09-25 13:10:50,958 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-25 13:10:50,958 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 13:10:50,977 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-25 13:10:50,978 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-25 13:10:50,980 INFO  L87              Difference]: Start difference. First operand 285 states. Second operand 4 states.
[2020-09-25 13:10:51,563 WARN  L193               SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 13:10:53,653 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 13:10:53,654 INFO  L93              Difference]: Finished difference Result 590 states and 723 transitions.
[2020-09-25 13:10:53,655 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-09-25 13:10:53,660 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 153
[2020-09-25 13:10:53,662 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 13:10:53,681 INFO  L225             Difference]: With dead ends: 590
[2020-09-25 13:10:53,682 INFO  L226             Difference]: Without dead ends: 416
[2020-09-25 13:10:53,688 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-09-25 13:10:53,709 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 416 states.
[2020-09-25 13:10:53,833 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 348.
[2020-09-25 13:10:53,834 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 348 states.
[2020-09-25 13:10:53,837 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 389 transitions.
[2020-09-25 13:10:53,840 INFO  L78                 Accepts]: Start accepts. Automaton has 348 states and 389 transitions. Word has length 153
[2020-09-25 13:10:53,841 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 13:10:53,841 INFO  L479      AbstractCegarLoop]: Abstraction has 348 states and 389 transitions.
[2020-09-25 13:10:53,841 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-25 13:10:53,841 INFO  L276                IsEmpty]: Start isEmpty. Operand 348 states and 389 transitions.
[2020-09-25 13:10:53,847 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 163
[2020-09-25 13:10:53,847 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 13:10:53,847 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]
[2020-09-25 13:10:53,848 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 13:10:53,848 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 13:10:53,848 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 13:10:53,849 INFO  L82        PathProgramCache]: Analyzing trace with hash 1356110479, now seen corresponding path program 1 times
[2020-09-25 13:10:53,849 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 13:10:53,849 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [611122968]
[2020-09-25 13:10:53,850 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 13:10:53,908 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:53,963 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:54,177 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:57,211 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:57,212 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 199
[2020-09-25 13:10:57,212 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 13:10:57,212 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3300
[2020-09-25 13:10:57,213 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:57,213 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:57,213 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 13:10:57,213 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 78
[2020-09-25 13:10:57,214 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 105
[2020-09-25 13:10:57,214 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:57,556 WARN  L193               SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 13:10:57,557 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 13:10:57,594 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:57,631 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:57,843 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:57,843 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 13:10:57,844 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:57,844 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 246
[2020-09-25 13:10:57,844 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:57,844 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:57,844 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:10:57,845 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:10:57,845 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 74
[2020-09-25 13:10:57,845 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:57,889 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 13:10:57,891 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:57,892 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:57,895 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:57,895 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:10:57,895 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:57,896 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 13:10:57,896 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:57,896 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:57,897 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:10:57,897 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:10:57,897 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:10:57,897 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:57,899 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 13:10:57,899 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:57,900 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:57,903 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:57,903 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:10:57,903 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:57,903 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 13:10:57,904 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:57,904 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:57,904 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:10:57,904 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:10:57,904 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:10:57,905 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:57,906 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 13:10:57,907 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:57,909 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:57,916 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:57,916 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:10:57,916 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:57,916 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 13:10:57,917 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:57,917 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:57,917 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:10:57,917 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:10:57,918 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 13:10:57,918 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:57,920 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 13:10:57,921 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:57,922 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:57,925 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:57,925 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:10:57,925 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:57,925 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 13:10:57,926 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:57,926 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:57,926 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:10:57,926 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:10:57,927 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:10:57,927 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:57,937 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118
[2020-09-25 13:10:57,938 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:57,940 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:57,943 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:57,944 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-25 13:10:57,944 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:57,944 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 13:10:57,944 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:57,945 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:57,945 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:10:57,945 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:10:57,945 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 11
[2020-09-25 13:10:57,946 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:57,948 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 13:10:57,948 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:57,949 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:57,951 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:57,951 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:10:57,951 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:57,951 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 13:10:57,952 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:57,952 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:57,952 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:10:57,952 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:10:57,953 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:10:57,953 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:57,954 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130
[2020-09-25 13:10:57,955 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:57,957 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:57,960 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:57,960 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:10:57,960 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:57,961 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 13:10:57,961 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:57,961 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:57,961 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:10:57,962 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:10:57,962 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 13:10:57,962 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:57,964 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140
[2020-09-25 13:10:57,965 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:57,967 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:57,973 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:57,974 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:10:57,974 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:57,974 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 13:10:57,974 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:57,975 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:57,975 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 13:10:57,975 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:10:57,975 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 13:10:57,976 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:58,009 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150
[2020-09-25 13:10:58,010 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:58,012 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:58,014 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:10:58,014 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:10:58,014 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:10:58,014 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 13:10:58,015 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:10:58,015 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:10:58,015 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:10:58,015 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 13:10:58,015 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:10:58,016 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:10:58,049 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 13:10:58,049 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [611122968]
[2020-09-25 13:10:58,050 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 13:10:58,050 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2020-09-25 13:10:58,050 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401860239]
[2020-09-25 13:10:58,055 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 10 states
[2020-09-25 13:10:58,055 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 13:10:58,055 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2020-09-25 13:10:58,056 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90
[2020-09-25 13:10:58,056 INFO  L87              Difference]: Start difference. First operand 348 states and 389 transitions. Second operand 10 states.
[2020-09-25 13:10:58,646 WARN  L193               SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 13:11:00,888 WARN  L193               SmtUtils]: Spent 508.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188
[2020-09-25 13:11:01,499 WARN  L193               SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190
[2020-09-25 13:11:01,869 WARN  L193               SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 13:11:02,269 WARN  L193               SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-25 13:11:02,593 WARN  L193               SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-25 13:11:02,939 WARN  L193               SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 192
[2020-09-25 13:11:03,243 WARN  L193               SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 13:11:03,681 WARN  L193               SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 13:11:04,962 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 13:11:04,962 INFO  L93              Difference]: Finished difference Result 1023 states and 1342 transitions.
[2020-09-25 13:11:04,964 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2020-09-25 13:11:04,964 INFO  L78                 Accepts]: Start accepts. Automaton has 10 states. Word has length 162
[2020-09-25 13:11:04,965 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 13:11:04,976 INFO  L225             Difference]: With dead ends: 1023
[2020-09-25 13:11:04,976 INFO  L226             Difference]: Without dead ends: 738
[2020-09-25 13:11:04,980 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380
[2020-09-25 13:11:04,982 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 738 states.
[2020-09-25 13:11:05,108 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 559.
[2020-09-25 13:11:05,109 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 559 states.
[2020-09-25 13:11:05,112 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 643 transitions.
[2020-09-25 13:11:05,113 INFO  L78                 Accepts]: Start accepts. Automaton has 559 states and 643 transitions. Word has length 162
[2020-09-25 13:11:05,113 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 13:11:05,113 INFO  L479      AbstractCegarLoop]: Abstraction has 559 states and 643 transitions.
[2020-09-25 13:11:05,113 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 10 states.
[2020-09-25 13:11:05,114 INFO  L276                IsEmpty]: Start isEmpty. Operand 559 states and 643 transitions.
[2020-09-25 13:11:05,118 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 178
[2020-09-25 13:11:05,118 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 13:11:05,119 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 13:11:05,119 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 13:11:05,119 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 13:11:05,119 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 13:11:05,120 INFO  L82        PathProgramCache]: Analyzing trace with hash -1990325339, now seen corresponding path program 1 times
[2020-09-25 13:11:05,120 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 13:11:05,120 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [321049941]
[2020-09-25 13:11:05,120 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 13:11:05,181 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 13:11:05,189 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 13:11:05,190 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 13:11:05,195 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 13:11:05,223 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:11:05 BoogieIcfgContainer
[2020-09-25 13:11:05,223 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 13:11:05,225 INFO  L168              Benchmark]: Toolchain (without parser) took 23303.47 ms. Allocated memory was 148.4 MB in the beginning and 534.8 MB in the end (delta: 386.4 MB). Free memory was 102.5 MB in the beginning and 257.7 MB in the end (delta: -155.2 MB). Peak memory consumption was 231.2 MB. Max. memory is 7.1 GB.
[2020-09-25 13:11:05,226 INFO  L168              Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 148.4 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-09-25 13:11:05,227 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 764.59 ms. Allocated memory was 148.4 MB in the beginning and 206.0 MB in the end (delta: 57.7 MB). Free memory was 101.8 MB in the beginning and 175.0 MB in the end (delta: -73.2 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB.
[2020-09-25 13:11:05,228 INFO  L168              Benchmark]: Boogie Preprocessor took 106.96 ms. Allocated memory is still 206.0 MB. Free memory was 175.0 MB in the beginning and 171.1 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB.
[2020-09-25 13:11:05,229 INFO  L168              Benchmark]: RCFGBuilder took 1450.74 ms. Allocated memory was 206.0 MB in the beginning and 235.4 MB in the end (delta: 29.4 MB). Free memory was 171.1 MB in the beginning and 176.4 MB in the end (delta: -5.3 MB). Peak memory consumption was 81.3 MB. Max. memory is 7.1 GB.
[2020-09-25 13:11:05,230 INFO  L168              Benchmark]: TraceAbstraction took 20970.01 ms. Allocated memory was 235.4 MB in the beginning and 534.8 MB in the end (delta: 299.4 MB). Free memory was 176.4 MB in the beginning and 257.7 MB in the end (delta: -81.3 MB). Peak memory consumption was 218.1 MB. Max. memory is 7.1 GB.
[2020-09-25 13:11:05,234 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.24 ms. Allocated memory is still 148.4 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 764.59 ms. Allocated memory was 148.4 MB in the beginning and 206.0 MB in the end (delta: 57.7 MB). Free memory was 101.8 MB in the beginning and 175.0 MB in the end (delta: -73.2 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 106.96 ms. Allocated memory is still 206.0 MB. Free memory was 175.0 MB in the beginning and 171.1 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1450.74 ms. Allocated memory was 206.0 MB in the beginning and 235.4 MB in the end (delta: 29.4 MB). Free memory was 171.1 MB in the beginning and 176.4 MB in the end (delta: -5.3 MB). Peak memory consumption was 81.3 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 20970.01 ms. Allocated memory was 235.4 MB in the beginning and 534.8 MB in the end (delta: 299.4 MB). Free memory was 176.4 MB in the beginning and 257.7 MB in the end (delta: -81.3 MB). Peak memory consumption was 218.1 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 532]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L247]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L448]              int waterLevel  =    1;
[L449]              int methaneLevelCritical  =    0;
[L613]              int pumpRunning  =    0;
[L614]              int systemActive  =    1;
[L807]              int cleanupTimeShifts  =    4;
[L880]              int retValue_acc ;
[L881]              int tmp ;
[L885]  FCALL       select_helpers()
[L886]  FCALL       select_features()
[L887]  CALL, EXPR  valid_product()
[L798]              int retValue_acc ;
[L801]              retValue_acc = 1
[L802]              return (retValue_acc);
[L887]  RET, EXPR   valid_product()
[L887]              tmp = valid_product()
[L889]  COND TRUE   \read(tmp)
[L891]  FCALL       setup()
[L892]  CALL        runTest()
[L874]  CALL        test()
[L542]              int splverifierCounter ;
[L543]              int tmp ;
[L544]              int tmp___0 ;
[L545]              int tmp___1 ;
[L546]              int tmp___2 ;
[L549]              splverifierCounter = 0
[L551]  COND TRUE   1
[L553]  COND TRUE   splverifierCounter < 4
[L559]              tmp = __VERIFIER_nondet_int()
[L561]  COND TRUE   \read(tmp)
[L563]  CALL        waterRise()
[L466]  COND TRUE   waterLevel < 2
[L467]              waterLevel = waterLevel + 1
[L563]  RET         waterRise()
[L569]              tmp___0 = __VERIFIER_nondet_int()
[L571]  COND FALSE  !(\read(tmp___0))
[L579]              tmp___2 = __VERIFIER_nondet_int()
[L581]  COND FALSE  !(\read(tmp___2))
[L587]              tmp___1 = __VERIFIER_nondet_int()
[L589]  COND TRUE   \read(tmp___1)
[L591]  CALL        stopSystem()
[L749]  COND FALSE  !(\read(pumpRunning))
[L756]              systemActive = 0
[L591]  RET         stopSystem()
[L598]  CALL        timeShift()
[L620]  COND FALSE  !(\read(pumpRunning))
[L627]  COND FALSE  !(\read(systemActive))
[L635]  CALL        __utac_acc__Specification3_spec__1()
[L45]               int tmp ;
[L46]               int tmp___0 ;
[L47]               int tmp___1 ;
[L51]   CALL, EXPR  isMethaneLevelCritical()
[L487]              int retValue_acc ;
[L490]              retValue_acc = methaneLevelCritical
[L491]              return (retValue_acc);
[L51]   RET, EXPR   isMethaneLevelCritical()
[L51]               tmp = isMethaneLevelCritical()
[L53]   COND FALSE  !(\read(tmp))
[L57]   CALL, EXPR  getWaterLevel()
[L519]              int retValue_acc ;
[L522]              retValue_acc = waterLevel
[L523]              return (retValue_acc);
[L57]   RET, EXPR   getWaterLevel()
[L57]               tmp___0 = getWaterLevel()
[L59]   COND TRUE   tmp___0 == 2
[L61]   CALL, EXPR  isPumpRunning()
[L701]              int retValue_acc ;
[L704]              retValue_acc = pumpRunning
[L705]              return (retValue_acc);
[L61]   RET, EXPR   isPumpRunning()
[L61]               tmp___1 = isPumpRunning()
[L63]   COND FALSE  !(\read(tmp___1))
[L67]   CALL        __automaton_fail()
[L532]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 37 procedures, 600 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 20.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 9.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 492 SDtfs, 859 SDslu, 807 SDs, 0 SdLazy, 1775 SolverSat, 324 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=559occurred 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, 247 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 10.2s InterpolantComputationTime, 492 NumberOfCodeBlocks, 492 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 313 ConstructedInterpolants, 0 QuantifiedInterpolants, 140397 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...