/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=0.5 --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_product10.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 14:18:16,000 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 14:18:16,004 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 14:18:16,029 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 14:18:16,030 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 14:18:16,031 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 14:18:16,033 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 14:18:16,035 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 14:18:16,037 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 14:18:16,038 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 14:18:16,039 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 14:18:16,040 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 14:18:16,041 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 14:18:16,042 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 14:18:16,043 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 14:18:16,044 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 14:18:16,046 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 14:18:16,047 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 14:18:16,049 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 14:18:16,051 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 14:18:16,053 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 14:18:16,054 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 14:18:16,056 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 14:18:16,057 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 14:18:16,060 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 14:18:16,060 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 14:18:16,061 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 14:18:16,062 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 14:18:16,062 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 14:18:16,063 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 14:18:16,064 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 14:18:16,065 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 14:18:16,068 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 14:18:16,069 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 14:18:16,072 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 14:18:16,072 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 14:18:16,073 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 14:18:16,074 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 14:18:16,074 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 14:18:16,075 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 14:18:16,076 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 14:18:16,078 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 14:18:16,125 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 14:18:16,125 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 14:18:16,128 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 14:18:16,128 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 14:18:16,128 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 14:18:16,128 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 14:18:16,129 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 14:18:16,129 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 14:18:16,129 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 14:18:16,129 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 14:18:16,130 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 14:18:16,131 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 14:18:16,131 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 14:18:16,132 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 14:18:16,132 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 14:18:16,132 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 14:18:16,132 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 14:18:16,132 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 14:18:16,133 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 14:18:16,133 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 14:18:16,133 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 14:18:16,133 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 14:18:16,134 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 14:18:16,134 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 14:18:16,134 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 14:18:16,134 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 14:18:16,134 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 14:18:16,135 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 14:18:16,135 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 14:18:16,135 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=0.5;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=0.5;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=0.5;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=0.5;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=0.5;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=0.5;log-additional-information=true;
[2020-09-25 14:18:16,596 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 14:18:16,619 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 14:18:16,624 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 14:18:16,626 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 14:18:16,626 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 14:18:16,628 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product10.cil.c
[2020-09-25 14:18:16,708 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2ed13b34b/6ad869ad1da44f28aea7c7e71f431f0c/FLAGf71e76941
[2020-09-25 14:18:17,270 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 14:18:17,271 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product10.cil.c
[2020-09-25 14:18:17,287 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2ed13b34b/6ad869ad1da44f28aea7c7e71f431f0c/FLAGf71e76941
[2020-09-25 14:18:17,540 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2ed13b34b/6ad869ad1da44f28aea7c7e71f431f0c
[2020-09-25 14:18:17,554 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 14:18:17,560 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 14:18:17,561 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 14:18:17,561 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 14:18:17,565 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 14:18:17,567 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:18:17" (1/1) ...
[2020-09-25 14:18:17,571 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11967da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:17, skipping insertion in model container
[2020-09-25 14:18:17,571 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:18:17" (1/1) ...
[2020-09-25 14:18:17,580 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 14:18:17,633 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 14:18:18,121 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 14:18:18,145 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 14:18:18,232 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 14:18:18,276 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 14:18:18,276 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:18 WrapperNode
[2020-09-25 14:18:18,277 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 14:18:18,277 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 14:18:18,278 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 14:18:18,278 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 14:18:18,292 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:18" (1/1) ...
[2020-09-25 14:18:18,292 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:18" (1/1) ...
[2020-09-25 14:18:18,312 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:18" (1/1) ...
[2020-09-25 14:18:18,313 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:18" (1/1) ...
[2020-09-25 14:18:18,345 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:18" (1/1) ...
[2020-09-25 14:18:18,356 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:18" (1/1) ...
[2020-09-25 14:18:18,362 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:18" (1/1) ...
[2020-09-25 14:18:18,371 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 14:18:18,372 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 14:18:18,372 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 14:18:18,372 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 14:18:18,374 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:18" (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 14:18:18,461 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 14:18:18,461 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 14:18:18,462 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 14:18:18,462 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 14:18:18,462 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 14:18:18,462 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 14:18:18,462 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 14:18:18,463 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 14:18:18,463 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 14:18:18,463 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 14:18:18,463 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 14:18:18,463 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 14:18:18,464 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 14:18:18,464 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 14:18:18,464 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 14:18:18,464 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 14:18:18,464 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 14:18:18,464 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 14:18:18,465 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 14:18:18,465 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 14:18:18,465 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 14:18:18,465 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 14:18:18,466 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 14:18:18,466 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base
[2020-09-25 14:18:18,466 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 14:18:18,466 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 14:18:18,466 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 14:18:18,466 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 14:18:18,467 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 14:18:18,467 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-25 14:18:18,467 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 14:18:18,467 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 14:18:18,467 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 14:18:18,467 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 14:18:18,468 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 14:18:18,468 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 14:18:18,468 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 14:18:18,468 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 14:18:18,468 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 14:18:18,468 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 14:18:18,469 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 14:18:18,469 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 14:18:18,469 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 14:18:18,469 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 14:18:18,469 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 14:18:18,469 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 14:18:18,469 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 14:18:18,470 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 14:18:18,470 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 14:18:18,470 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 14:18:18,470 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 14:18:18,470 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 14:18:18,470 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 14:18:18,471 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 14:18:18,471 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 14:18:18,471 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 14:18:18,471 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 14:18:18,471 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 14:18:18,471 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 14:18:18,472 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 14:18:18,472 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 14:18:18,472 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 14:18:18,472 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 14:18:18,472 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 14:18:18,472 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 14:18:18,473 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 14:18:18,473 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 14:18:18,473 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-25 14:18:18,473 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 14:18:18,473 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 14:18:18,473 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 14:18:18,474 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 14:18:18,474 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 14:18:18,474 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 14:18:18,474 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 14:18:18,474 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 14:18:18,474 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 14:18:18,475 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base
[2020-09-25 14:18:18,475 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 14:18:18,475 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 14:18:18,475 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 14:18:18,475 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 14:18:18,475 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 14:18:18,475 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 14:18:18,476 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 14:18:18,476 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 14:18:19,748 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 14:18:19,749 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 14:18:19,763 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:18:19 BoogieIcfgContainer
[2020-09-25 14:18:19,763 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 14:18:19,765 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 14:18:19,765 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 14:18:19,770 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 14:18:19,771 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:18:17" (1/3) ...
[2020-09-25 14:18:19,772 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@445595cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:18:19, skipping insertion in model container
[2020-09-25 14:18:19,772 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:18" (2/3) ...
[2020-09-25 14:18:19,773 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@445595cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:18:19, skipping insertion in model container
[2020-09-25 14:18:19,773 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:18:19" (3/3) ...
[2020-09-25 14:18:19,775 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product10.cil.c
[2020-09-25 14:18:19,787 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 14:18:19,800 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 14:18:19,824 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 14:18:19,862 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 14:18:19,862 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 14:18:19,862 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 14:18:19,863 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 14:18:19,863 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 14:18:19,863 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 14:18:19,863 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 14:18:19,863 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 14:18:19,888 INFO  L276                IsEmpty]: Start isEmpty. Operand 272 states.
[2020-09-25 14:18:19,905 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 14:18:19,905 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 14:18:19,907 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 14:18:19,907 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 14:18:19,915 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 14:18:19,915 INFO  L82        PathProgramCache]: Analyzing trace with hash -350196146, now seen corresponding path program 1 times
[2020-09-25 14:18:19,927 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 14:18:19,928 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1706331578]
[2020-09-25 14:18:19,928 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 14:18:20,236 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:20,365 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:20,616 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:22,156 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:25,261 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:25,262 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 14:18:25,263 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 14:18:25,267 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5015
[2020-09-25 14:18:25,273 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:25,273 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:25,274 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 14:18:25,274 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 81
[2020-09-25 14:18:25,275 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 59
[2020-09-25 14:18:25,275 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 7
[2020-09-25 14:18:25,819 WARN  L193               SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 14:18:25,821 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 14:18:25,860 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:25,900 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:26,123 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:26,124 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 14:18:26,125 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:26,125 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 262
[2020-09-25 14:18:26,126 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:26,126 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:26,126 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:26,126 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:26,127 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 77
[2020-09-25 14:18:26,127 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:26,216 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 14:18:26,219 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:26,224 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:26,231 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:26,232 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:26,232 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:26,232 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 14:18:26,233 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:26,233 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:26,233 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:26,234 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:26,234 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:26,235 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 14:18:26,238 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 14:18:26,240 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:26,241 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:26,245 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:26,245 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:26,246 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:26,246 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 14:18:26,246 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:26,247 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:26,247 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:26,248 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:26,248 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:26,248 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:26,252 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 14:18:26,253 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:26,257 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:26,268 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:26,269 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:26,269 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:26,270 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 14
[2020-09-25 14:18:26,270 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:26,270 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:26,271 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:26,271 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:26,272 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 14:18:26,272 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 14:18:26,287 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 14:18:26,289 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:26,290 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:26,295 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:26,296 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:26,296 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:26,296 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 14:18:26,297 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:26,297 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:26,297 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:26,297 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:26,298 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:26,298 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:26,300 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 14:18:26,301 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:26,305 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:26,309 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:26,309 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:26,309 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:26,309 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 14:18:26,310 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:26,310 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:26,310 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:18:26,310 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 14:18:26,311 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:18:26,311 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:26,313 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 14:18:26,315 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:26,316 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:26,318 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:26,318 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:26,318 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:26,318 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 14:18:26,319 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:26,319 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:26,319 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:18:26,320 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 14:18:26,320 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:18:26,320 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:26,322 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 14:18:26,326 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:26,327 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:26,329 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:26,330 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:26,330 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:26,330 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:18:26,330 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:26,330 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:26,331 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:18:26,331 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 14:18:26,332 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:18:26,332 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:26,392 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 14:18:26,393 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1706331578]
[2020-09-25 14:18:26,396 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 14:18:26,397 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-25 14:18:26,398 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125489837]
[2020-09-25 14:18:26,411 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-25 14:18:26,412 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 14:18:26,438 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-25 14:18:26,441 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-25 14:18:26,444 INFO  L87              Difference]: Start difference. First operand 272 states. Second operand 4 states.
[2020-09-25 14:18:27,091 WARN  L193               SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 14:18:28,014 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 14:18:28,018 INFO  L93              Difference]: Finished difference Result 374 states and 448 transitions.
[2020-09-25 14:18:28,019 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-09-25 14:18:28,021 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 153
[2020-09-25 14:18:28,022 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 14:18:28,055 INFO  L225             Difference]: With dead ends: 374
[2020-09-25 14:18:28,055 INFO  L226             Difference]: Without dead ends: 243
[2020-09-25 14:18:28,064 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-09-25 14:18:28,091 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 243 states.
[2020-09-25 14:18:28,219 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 205.
[2020-09-25 14:18:28,221 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 205 states.
[2020-09-25 14:18:28,224 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 218 transitions.
[2020-09-25 14:18:28,227 INFO  L78                 Accepts]: Start accepts. Automaton has 205 states and 218 transitions. Word has length 153
[2020-09-25 14:18:28,228 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 14:18:28,228 INFO  L479      AbstractCegarLoop]: Abstraction has 205 states and 218 transitions.
[2020-09-25 14:18:28,228 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-25 14:18:28,228 INFO  L276                IsEmpty]: Start isEmpty. Operand 205 states and 218 transitions.
[2020-09-25 14:18:28,234 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 158
[2020-09-25 14:18:28,234 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 14:18:28,234 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 14:18:28,235 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 14:18:28,235 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 14:18:28,235 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 14:18:28,236 INFO  L82        PathProgramCache]: Analyzing trace with hash -220686317, now seen corresponding path program 1 times
[2020-09-25 14:18:28,236 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 14:18:28,236 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [92686165]
[2020-09-25 14:18:28,237 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 14:18:28,289 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:28,345 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:28,584 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:31,489 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:31,489 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 192
[2020-09-25 14:18:31,489 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 14:18:31,490 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3196
[2020-09-25 14:18:31,490 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:31,490 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:31,490 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 14:18:31,491 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 77
[2020-09-25 14:18:31,491 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 99
[2020-09-25 14:18:31,491 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:31,799 WARN  L193               SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 14:18:31,800 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 14:18:31,836 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:31,873 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:32,085 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:32,085 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 14:18:32,086 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:32,086 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 247
[2020-09-25 14:18:32,086 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:32,087 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:32,087 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:32,087 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:32,088 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 73
[2020-09-25 14:18:32,088 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:32,182 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 14:18:32,183 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:32,185 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:32,187 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:32,188 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:32,188 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:32,188 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:18:32,189 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:32,189 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:32,189 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:32,189 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:32,189 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:32,190 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:32,191 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 14:18:32,192 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:32,193 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:32,195 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:32,196 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:32,196 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:32,196 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:18:32,197 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:32,197 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:32,197 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:32,197 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:32,197 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:32,198 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:32,199 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 14:18:32,200 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:32,202 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:32,209 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:32,209 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:32,210 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:32,210 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 14:18:32,210 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:32,210 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:32,211 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:32,211 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:32,211 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 14:18:32,211 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:32,213 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 14:18:32,214 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:32,215 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:32,218 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:32,218 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:32,218 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:32,219 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:18:32,219 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:32,219 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:32,219 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:32,219 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:32,220 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:32,220 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:32,221 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118
[2020-09-25 14:18:32,222 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:32,223 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:32,225 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:32,226 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:32,226 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:32,226 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:18:32,226 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:32,226 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:32,227 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:32,227 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:32,227 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:32,227 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:32,229 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125
[2020-09-25 14:18:32,230 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:32,231 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:32,234 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:32,234 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:32,235 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:32,235 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 14:18:32,235 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:32,235 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:32,236 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:32,236 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:32,236 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 14:18:32,236 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:32,238 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135
[2020-09-25 14:18:32,240 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:32,242 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:32,248 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:32,249 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:32,249 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:32,249 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 14:18:32,249 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:32,250 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:32,250 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 14:18:32,250 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:32,250 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 14:18:32,251 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:32,277 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145
[2020-09-25 14:18:32,278 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:32,279 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:32,280 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:32,281 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:32,281 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:32,281 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 14:18:32,282 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:32,282 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:32,282 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:18:32,282 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 14:18:32,283 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:18:32,283 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:32,320 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 14:18:32,320 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [92686165]
[2020-09-25 14:18:32,320 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 14:18:32,321 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2020-09-25 14:18:32,321 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497482582]
[2020-09-25 14:18:32,323 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-25 14:18:32,323 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 14:18:32,324 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-25 14:18:32,324 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2020-09-25 14:18:32,324 INFO  L87              Difference]: Start difference. First operand 205 states and 218 transitions. Second operand 9 states.
[2020-09-25 14:18:32,843 WARN  L193               SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 14:18:34,191 WARN  L193               SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 14:18:34,526 WARN  L193               SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 14:18:34,893 WARN  L193               SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 14:18:35,235 WARN  L193               SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-25 14:18:35,618 WARN  L193               SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 14:18:36,037 WARN  L193               SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 14:18:36,349 WARN  L193               SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 14:18:36,732 WARN  L193               SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 14:18:37,452 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 14:18:37,453 INFO  L93              Difference]: Finished difference Result 432 states and 514 transitions.
[2020-09-25 14:18:37,455 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2020-09-25 14:18:37,456 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 157
[2020-09-25 14:18:37,457 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 14:18:37,461 INFO  L225             Difference]: With dead ends: 432
[2020-09-25 14:18:37,462 INFO  L226             Difference]: Without dead ends: 320
[2020-09-25 14:18:37,465 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306
[2020-09-25 14:18:37,466 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 320 states.
[2020-09-25 14:18:37,518 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 283.
[2020-09-25 14:18:37,518 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 283 states.
[2020-09-25 14:18:37,520 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 309 transitions.
[2020-09-25 14:18:37,520 INFO  L78                 Accepts]: Start accepts. Automaton has 283 states and 309 transitions. Word has length 157
[2020-09-25 14:18:37,521 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 14:18:37,521 INFO  L479      AbstractCegarLoop]: Abstraction has 283 states and 309 transitions.
[2020-09-25 14:18:37,521 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-09-25 14:18:37,521 INFO  L276                IsEmpty]: Start isEmpty. Operand 283 states and 309 transitions.
[2020-09-25 14:18:37,526 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 176
[2020-09-25 14:18:37,526 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 14:18:37,526 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]
[2020-09-25 14:18:37,526 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 14:18:37,527 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 14:18:37,527 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 14:18:37,527 INFO  L82        PathProgramCache]: Analyzing trace with hash -1340891089, now seen corresponding path program 1 times
[2020-09-25 14:18:37,528 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 14:18:37,528 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [111468507]
[2020-09-25 14:18:37,528 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 14:18:37,591 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 14:18:37,599 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 14:18:37,599 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 14:18:37,605 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 14:18:37,630 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:18:37 BoogieIcfgContainer
[2020-09-25 14:18:37,630 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 14:18:37,633 INFO  L168              Benchmark]: Toolchain (without parser) took 20077.02 ms. Allocated memory was 138.4 MB in the beginning and 528.0 MB in the end (delta: 389.5 MB). Free memory was 101.4 MB in the beginning and 446.4 MB in the end (delta: -345.0 MB). Peak memory consumption was 44.6 MB. Max. memory is 7.1 GB.
[2020-09-25 14:18:37,634 INFO  L168              Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-25 14:18:37,635 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 716.05 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 100.7 MB in the beginning and 170.7 MB in the end (delta: -69.9 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB.
[2020-09-25 14:18:37,636 INFO  L168              Benchmark]: Boogie Preprocessor took 94.13 ms. Allocated memory is still 201.9 MB. Free memory was 170.7 MB in the beginning and 166.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB.
[2020-09-25 14:18:37,637 INFO  L168              Benchmark]: RCFGBuilder took 1391.11 ms. Allocated memory was 201.9 MB in the beginning and 232.3 MB in the end (delta: 30.4 MB). Free memory was 166.4 MB in the beginning and 179.6 MB in the end (delta: -13.2 MB). Peak memory consumption was 87.1 MB. Max. memory is 7.1 GB.
[2020-09-25 14:18:37,638 INFO  L168              Benchmark]: TraceAbstraction took 17865.25 ms. Allocated memory was 232.3 MB in the beginning and 528.0 MB in the end (delta: 295.7 MB). Free memory was 179.6 MB in the beginning and 446.4 MB in the end (delta: -266.7 MB). Peak memory consumption was 29.0 MB. Max. memory is 7.1 GB.
[2020-09-25 14:18:37,642 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 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 716.05 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 100.7 MB in the beginning and 170.7 MB in the end (delta: -69.9 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 94.13 ms. Allocated memory is still 201.9 MB. Free memory was 170.7 MB in the beginning and 166.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1391.11 ms. Allocated memory was 201.9 MB in the beginning and 232.3 MB in the end (delta: 30.4 MB). Free memory was 166.4 MB in the beginning and 179.6 MB in the end (delta: -13.2 MB). Peak memory consumption was 87.1 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 17865.25 ms. Allocated memory was 232.3 MB in the beginning and 528.0 MB in the end (delta: 295.7 MB). Free memory was 179.6 MB in the beginning and 446.4 MB in the end (delta: -266.7 MB). Peak memory consumption was 29.0 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 168]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L84]               int waterLevel  =    1;
[L85]               int methaneLevelCritical  =    0;
[L342]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L613]              int pumpRunning  =    0;
[L614]              int systemActive  =    1;
[L781]              int cleanupTimeShifts  =    4;
[L854]              int retValue_acc ;
[L855]              int tmp ;
[L859]  FCALL       select_helpers()
[L860]  FCALL       select_features()
[L861]  CALL, EXPR  valid_product()
[L69]               int retValue_acc ;
[L72]               retValue_acc = 1
[L73]               return (retValue_acc);
[L861]  RET, EXPR   valid_product()
[L861]              tmp = valid_product()
[L863]  COND TRUE   \read(tmp)
[L865]  FCALL       setup()
[L866]  CALL        runTest()
[L848]  CALL        test()
[L543]              int splverifierCounter ;
[L544]              int tmp ;
[L545]              int tmp___0 ;
[L546]              int tmp___1 ;
[L547]              int tmp___2 ;
[L550]              splverifierCounter = 0
[L552]  COND TRUE   1
[L554]  COND TRUE   splverifierCounter < 4
[L560]              tmp = __VERIFIER_nondet_int()
[L562]  COND TRUE   \read(tmp)
[L564]  CALL        waterRise()
[L102]  COND TRUE   waterLevel < 2
[L103]              waterLevel = waterLevel + 1
[L564]  RET         waterRise()
[L570]              tmp___0 = __VERIFIER_nondet_int()
[L572]  COND FALSE  !(\read(tmp___0))
[L580]              tmp___2 = __VERIFIER_nondet_int()
[L582]  COND TRUE   \read(tmp___2)
[L584]  CALL        startSystem()
[L742]              systemActive = 1
[L584]  RET         startSystem()
[L597]  CALL        timeShift()
[L621]  COND FALSE  !(\read(pumpRunning))
[L628]  COND TRUE   \read(systemActive)
[L630]  FCALL       processEnvironment()
[L636]  CALL        __utac_acc__Specification3_spec__1()
[L748]              int tmp ;
[L749]              int tmp___0 ;
[L750]              int tmp___1 ;
[L754]  CALL, EXPR  isMethaneLevelCritical()
[L123]              int retValue_acc ;
[L126]              retValue_acc = methaneLevelCritical
[L127]              return (retValue_acc);
[L754]  RET, EXPR   isMethaneLevelCritical()
[L754]              tmp = isMethaneLevelCritical()
[L756]  COND FALSE  !(\read(tmp))
[L760]  CALL, EXPR  getWaterLevel()
[L155]              int retValue_acc ;
[L158]              retValue_acc = waterLevel
[L159]              return (retValue_acc);
[L760]  RET, EXPR   getWaterLevel()
[L760]              tmp___0 = getWaterLevel()
[L762]  COND TRUE   tmp___0 == 2
[L764]  CALL, EXPR  isPumpRunning()
[L694]              int retValue_acc ;
[L697]              retValue_acc = pumpRunning
[L698]              return (retValue_acc);
[L764]  RET, EXPR   isPumpRunning()
[L764]              tmp___1 = isPumpRunning()
[L766]  COND FALSE  !(\read(tmp___1))
[L770]  CALL        __automaton_fail()
[L168]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 36 procedures, 591 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 6.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 400 SDtfs, 539 SDslu, 722 SDs, 0 SdLazy, 1136 SolverSat, 179 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=283occurred 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, 75 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 10.0s InterpolantComputationTime, 485 NumberOfCodeBlocks, 485 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 308 ConstructedInterpolants, 0 QuantifiedInterpolants, 135396 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...