/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=BIGGEST --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
[2020-09-24 20:12:41,014 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 20:12:41,018 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 20:12:41,047 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 20:12:41,048 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 20:12:41,049 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 20:12:41,051 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 20:12:41,053 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 20:12:41,055 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 20:12:41,056 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 20:12:41,057 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 20:12:41,058 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 20:12:41,059 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 20:12:41,060 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 20:12:41,061 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 20:12:41,062 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 20:12:41,064 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 20:12:41,065 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 20:12:41,067 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 20:12:41,069 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 20:12:41,075 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 20:12:41,077 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 20:12:41,079 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 20:12:41,081 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 20:12:41,087 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 20:12:41,087 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 20:12:41,087 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 20:12:41,090 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 20:12:41,092 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 20:12:41,094 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 20:12:41,094 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 20:12:41,095 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 20:12:41,096 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 20:12:41,097 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 20:12:41,100 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 20:12:41,100 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 20:12:41,101 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 20:12:41,101 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 20:12:41,102 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 20:12:41,103 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 20:12:41,105 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 20:12:41,106 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-24 20:12:41,165 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 20:12:41,165 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 20:12:41,167 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 20:12:41,167 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 20:12:41,167 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 20:12:41,167 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 20:12:41,168 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 20:12:41,168 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 20:12:41,168 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 20:12:41,168 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 20:12:41,168 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 20:12:41,170 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 20:12:41,170 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 20:12:41,171 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 20:12:41,171 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 20:12:41,171 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 20:12:41,171 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 20:12:41,171 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 20:12:41,172 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 20:12:41,172 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 20:12:41,172 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 20:12:41,172 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 20:12:41,173 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 20:12:41,173 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 20:12:41,173 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 20:12:41,173 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 20:12:41,174 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 20:12:41,174 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 20:12:41,174 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 20:12:41,175 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true;
[2020-09-24 20:12:41,689 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 20:12:41,707 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 20:12:41,712 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 20:12:41,714 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 20:12:41,715 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 20:12:41,716 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product10.cil.c
[2020-09-24 20:12:41,803 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/960020b92/891e851466d041c0afedae76bf9c9fd2/FLAG546570e30
[2020-09-24 20:12:42,405 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 20:12:42,406 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product10.cil.c
[2020-09-24 20:12:42,421 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/960020b92/891e851466d041c0afedae76bf9c9fd2/FLAG546570e30
[2020-09-24 20:12:42,699 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/960020b92/891e851466d041c0afedae76bf9c9fd2
[2020-09-24 20:12:42,714 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 20:12:42,722 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 20:12:42,726 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 20:12:42,726 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 20:12:42,731 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 20:12:42,732 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:12:42" (1/1) ...
[2020-09-24 20:12:42,738 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22589b7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:42, skipping insertion in model container
[2020-09-24 20:12:42,738 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:12:42" (1/1) ...
[2020-09-24 20:12:42,748 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 20:12:42,822 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 20:12:43,171 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 20:12:43,189 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 20:12:43,389 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 20:12:43,425 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 20:12:43,425 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:43 WrapperNode
[2020-09-24 20:12:43,425 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 20:12:43,426 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 20:12:43,426 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 20:12:43,427 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 20:12:43,443 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:43" (1/1) ...
[2020-09-24 20:12:43,443 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:43" (1/1) ...
[2020-09-24 20:12:43,465 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:43" (1/1) ...
[2020-09-24 20:12:43,466 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:43" (1/1) ...
[2020-09-24 20:12:43,498 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:43" (1/1) ...
[2020-09-24 20:12:43,510 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:43" (1/1) ...
[2020-09-24 20:12:43,516 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:43" (1/1) ...
[2020-09-24 20:12:43,531 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 20:12:43,531 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 20:12:43,532 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 20:12:43,532 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 20:12:43,535 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:43" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 20:12:43,613 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 20:12:43,614 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 20:12:43,614 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 20:12:43,614 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 20:12:43,615 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 20:12:43,615 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 20:12:43,615 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 20:12:43,616 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 20:12:43,617 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 20:12:43,617 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 20:12:43,617 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 20:12:43,617 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 20:12:43,617 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 20:12:43,617 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 20:12:43,618 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 20:12:43,619 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 20:12:43,619 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 20:12:43,619 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 20:12:43,620 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 20:12:43,620 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 20:12:43,621 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 20:12:43,621 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 20:12:43,622 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 20:12:43,622 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base
[2020-09-24 20:12:43,623 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 20:12:43,624 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 20:12:43,624 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 20:12:43,624 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 20:12:43,625 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 20:12:43,625 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-24 20:12:43,625 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-24 20:12:43,626 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 20:12:43,626 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 20:12:43,626 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 20:12:43,626 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 20:12:43,626 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 20:12:43,626 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 20:12:43,627 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 20:12:43,627 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 20:12:43,627 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 20:12:43,628 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 20:12:43,629 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 20:12:43,629 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 20:12:43,629 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 20:12:43,629 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 20:12:43,629 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 20:12:43,630 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 20:12:43,630 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 20:12:43,630 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 20:12:43,630 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 20:12:43,631 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 20:12:43,631 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 20:12:43,631 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 20:12:43,632 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 20:12:43,632 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 20:12:43,633 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 20:12:43,633 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 20:12:43,633 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 20:12:43,633 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 20:12:43,633 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 20:12:43,633 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 20:12:43,634 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 20:12:43,634 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 20:12:43,634 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 20:12:43,634 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 20:12:43,635 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 20:12:43,635 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 20:12:43,635 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-24 20:12:43,635 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 20:12:43,635 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 20:12:43,635 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 20:12:43,639 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 20:12:43,640 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 20:12:43,640 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 20:12:43,640 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 20:12:43,640 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-24 20:12:43,640 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 20:12:43,641 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base
[2020-09-24 20:12:43,641 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 20:12:43,641 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 20:12:43,641 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 20:12:43,641 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 20:12:43,641 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 20:12:43,641 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 20:12:43,642 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 20:12:43,642 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 20:12:44,724 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 20:12:44,724 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 20:12:44,731 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:12:44 BoogieIcfgContainer
[2020-09-24 20:12:44,732 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 20:12:44,733 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 20:12:44,733 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 20:12:44,737 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 20:12:44,737 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:12:42" (1/3) ...
[2020-09-24 20:12:44,738 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20b9d6d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:12:44, skipping insertion in model container
[2020-09-24 20:12:44,738 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:43" (2/3) ...
[2020-09-24 20:12:44,738 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20b9d6d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:12:44, skipping insertion in model container
[2020-09-24 20:12:44,739 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:12:44" (3/3) ...
[2020-09-24 20:12:44,741 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product10.cil.c
[2020-09-24 20:12:44,752 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 20:12:44,764 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 20:12:44,785 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 20:12:44,815 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 20:12:44,815 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 20:12:44,816 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 20:12:44,816 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 20:12:44,816 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 20:12:44,816 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 20:12:44,816 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 20:12:44,816 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 20:12:44,843 INFO  L276                IsEmpty]: Start isEmpty. Operand 272 states.
[2020-09-24 20:12:44,859 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-24 20:12:44,859 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 20:12:44,860 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 20:12:44,861 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 20:12:44,867 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 20:12:44,868 INFO  L82        PathProgramCache]: Analyzing trace with hash -350196146, now seen corresponding path program 1 times
[2020-09-24 20:12:44,879 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 20:12:44,879 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [972462890]
[2020-09-24 20:12:44,880 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 20:12:45,186 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:45,367 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:45,613 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:47,292 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:50,273 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:50,273 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-24 20:12:50,273 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 20:12:50,274 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5074
[2020-09-24 20:12:50,282 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:50,282 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-24 20:12:50,283 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 77
[2020-09-24 20:12:50,283 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 93
[2020-09-24 20:12:50,283 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-24 20:12:50,796 WARN  L193               SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 20:12:50,799 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 20:12:50,842 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:50,888 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:51,157 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:51,157 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 20:12:51,158 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:51,158 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 313
[2020-09-24 20:12:51,158 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:51,158 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:12:51,159 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:12:51,159 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 73
[2020-09-24 20:12:51,159 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:12:51,232 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 20:12:51,233 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:51,235 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:51,239 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:51,239 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:12:51,239 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:51,240 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 20:12:51,240 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:51,240 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:12:51,240 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:12:51,241 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 20:12:51,241 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:12:51,243 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 20:12:51,244 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:51,246 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:51,249 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:51,250 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:12:51,250 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:51,250 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 20:12:51,250 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:51,250 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:12:51,251 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:12:51,251 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 20:12:51,251 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:12:51,253 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 20:12:51,254 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:51,256 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:51,266 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:51,266 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:12:51,266 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:51,267 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-24 20:12:51,267 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:51,267 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:12:51,267 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:12:51,268 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 20:12:51,268 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:12:51,270 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 20:12:51,271 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:51,273 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:51,277 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:51,277 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:12:51,277 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:51,277 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 20:12:51,278 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:51,278 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:12:51,278 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:12:51,278 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 20:12:51,279 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:12:51,281 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-24 20:12:51,282 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:51,284 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:51,288 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:51,288 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:12:51,289 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:51,289 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 20:12:51,289 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:51,289 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:12:51,290 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:12:51,290 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 20:12:51,290 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:12:51,293 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-24 20:12:51,294 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:51,296 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:51,305 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:51,306 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:12:51,306 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:51,306 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-24 20:12:51,306 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:51,307 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 20:12:51,307 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:12:51,307 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 20:12:51,307 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:12:51,339 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-24 20:12:51,341 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:51,342 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:51,345 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:51,345 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:12:51,346 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:51,346 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 20:12:51,346 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:51,347 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:12:51,347 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 20:12:51,347 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:12:51,347 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:12:51,410 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 20:12:51,411 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [972462890]
[2020-09-24 20:12:51,413 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 20:12:51,413 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-24 20:12:51,414 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330158831]
[2020-09-24 20:12:51,426 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-24 20:12:51,427 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 20:12:51,445 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-24 20:12:51,446 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-24 20:12:51,449 INFO  L87              Difference]: Start difference. First operand 272 states. Second operand 8 states.
[2020-09-24 20:12:52,037 WARN  L193               SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 20:12:53,411 WARN  L193               SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 20:12:53,781 WARN  L193               SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 20:12:54,209 WARN  L193               SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 20:12:54,569 WARN  L193               SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 20:12:54,877 WARN  L193               SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 20:12:55,228 WARN  L193               SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 20:12:55,544 WARN  L193               SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 20:12:56,381 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 20:12:56,381 INFO  L93              Difference]: Finished difference Result 466 states and 571 transitions.
[2020-09-24 20:12:56,385 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-24 20:12:56,386 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 153
[2020-09-24 20:12:56,387 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 20:12:56,405 INFO  L225             Difference]: With dead ends: 466
[2020-09-24 20:12:56,406 INFO  L226             Difference]: Without dead ends: 323
[2020-09-24 20:12:56,412 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2020-09-24 20:12:56,432 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 323 states.
[2020-09-24 20:12:56,525 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 290.
[2020-09-24 20:12:56,527 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 290 states.
[2020-09-24 20:12:56,530 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 325 transitions.
[2020-09-24 20:12:56,532 INFO  L78                 Accepts]: Start accepts. Automaton has 290 states and 325 transitions. Word has length 153
[2020-09-24 20:12:56,533 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 20:12:56,534 INFO  L479      AbstractCegarLoop]: Abstraction has 290 states and 325 transitions.
[2020-09-24 20:12:56,534 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-24 20:12:56,534 INFO  L276                IsEmpty]: Start isEmpty. Operand 290 states and 325 transitions.
[2020-09-24 20:12:56,540 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 173
[2020-09-24 20:12:56,541 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 20:12:56,541 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]
[2020-09-24 20:12:56,541 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 20:12:56,542 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 20:12:56,542 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 20:12:56,542 INFO  L82        PathProgramCache]: Analyzing trace with hash -1230628687, now seen corresponding path program 1 times
[2020-09-24 20:12:56,542 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 20:12:56,543 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2038881113]
[2020-09-24 20:12:56,543 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 20:12:56,603 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:56,702 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:57,020 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:57,021 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 207
[2020-09-24 20:12:57,021 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:57,021 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 414
[2020-09-24 20:12:57,021 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:57,022 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:12:57,022 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 153
[2020-09-24 20:12:57,022 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-24 20:12:57,022 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:12:57,296 WARN  L193               SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 20:12:57,297 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 20:12:57,310 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:57,320 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:57,425 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:57,426 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 20:12:57,426 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:57,426 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 114
[2020-09-24 20:12:57,426 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:57,426 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:12:57,427 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:12:57,427 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:12:57,427 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:12:57,463 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 20:12:57,464 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:57,465 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:57,467 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:57,468 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:12:57,468 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:57,468 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 20:12:57,468 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:57,469 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:12:57,469 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:12:57,469 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:12:57,469 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:12:57,471 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 20:12:57,471 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:57,472 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:57,474 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:57,475 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:12:57,475 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:57,475 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 20:12:57,475 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:57,475 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:12:57,476 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:12:57,476 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:12:57,476 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:12:57,477 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 20:12:57,478 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:57,479 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:57,484 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:57,484 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:12:57,485 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:57,485 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 20:12:57,485 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:57,485 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:12:57,485 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:12:57,486 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:12:57,486 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:12:57,488 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 20:12:57,489 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:57,490 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:57,492 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:57,492 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:12:57,492 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:57,493 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 20:12:57,493 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:57,493 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:12:57,493 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:12:57,494 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:12:57,494 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:12:57,502 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116
[2020-09-24 20:12:57,503 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:57,504 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:57,507 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:57,507 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 20:12:57,507 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:57,507 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 20:12:57,508 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:57,508 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:12:57,508 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:12:57,508 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:12:57,509 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:12:57,519 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129
[2020-09-24 20:12:57,521 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:57,522 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:57,525 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:57,525 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-24 20:12:57,526 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:57,526 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 20:12:57,526 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:57,526 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:12:57,527 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:12:57,527 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-24 20:12:57,527 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:12:57,529 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140
[2020-09-24 20:12:57,530 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:57,532 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:57,533 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:57,533 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:12:57,534 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:57,534 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 20:12:57,534 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:57,534 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:12:57,535 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 20:12:57,535 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:12:57,535 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:12:57,537 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150
[2020-09-24 20:12:57,537 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:57,539 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:57,540 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:57,541 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:12:57,541 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:57,541 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 20:12:57,541 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:57,542 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:12:57,542 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 20:12:57,542 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:12:57,542 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:12:57,544 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160
[2020-09-24 20:12:57,545 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:57,546 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:57,548 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:57,548 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:12:57,548 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:57,548 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 20:12:57,549 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:57,549 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:12:57,549 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 20:12:57,549 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:12:57,550 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:12:57,584 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 20:12:57,584 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2038881113]
[2020-09-24 20:12:57,584 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 20:12:57,585 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-09-24 20:12:57,585 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277524045]
[2020-09-24 20:12:57,587 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-24 20:12:57,588 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 20:12:57,588 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-24 20:12:57,588 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-24 20:12:57,588 INFO  L87              Difference]: Start difference. First operand 290 states and 325 transitions. Second operand 6 states.
[2020-09-24 20:12:58,175 WARN  L193               SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 20:12:59,177 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 20:12:59,177 INFO  L93              Difference]: Finished difference Result 545 states and 668 transitions.
[2020-09-24 20:12:59,178 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2020-09-24 20:12:59,178 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 172
[2020-09-24 20:12:59,179 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 20:12:59,184 INFO  L225             Difference]: With dead ends: 545
[2020-09-24 20:12:59,184 INFO  L226             Difference]: Without dead ends: 365
[2020-09-24 20:12:59,188 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110
[2020-09-24 20:12:59,190 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 365 states.
[2020-09-24 20:12:59,247 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 290.
[2020-09-24 20:12:59,247 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 290 states.
[2020-09-24 20:12:59,249 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 322 transitions.
[2020-09-24 20:12:59,250 INFO  L78                 Accepts]: Start accepts. Automaton has 290 states and 322 transitions. Word has length 172
[2020-09-24 20:12:59,251 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 20:12:59,251 INFO  L479      AbstractCegarLoop]: Abstraction has 290 states and 322 transitions.
[2020-09-24 20:12:59,251 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-09-24 20:12:59,251 INFO  L276                IsEmpty]: Start isEmpty. Operand 290 states and 322 transitions.
[2020-09-24 20:12:59,255 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 176
[2020-09-24 20:12:59,255 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 20:12:59,255 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]
[2020-09-24 20:12:59,256 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 20:12:59,256 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 20:12:59,256 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 20:12:59,256 INFO  L82        PathProgramCache]: Analyzing trace with hash -1340891089, now seen corresponding path program 1 times
[2020-09-24 20:12:59,257 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 20:12:59,257 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1351750838]
[2020-09-24 20:12:59,257 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 20:12:59,332 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-24 20:12:59,340 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-24 20:12:59,341 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-24 20:12:59,346 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 20:12:59,375 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 08:12:59 BoogieIcfgContainer
[2020-09-24 20:12:59,376 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 20:12:59,378 INFO  L168              Benchmark]: Toolchain (without parser) took 16661.99 ms. Allocated memory was 140.0 MB in the beginning and 414.7 MB in the end (delta: 274.7 MB). Free memory was 102.2 MB in the beginning and 149.6 MB in the end (delta: -47.4 MB). Peak memory consumption was 227.3 MB. Max. memory is 7.1 GB.
[2020-09-24 20:12:59,379 INFO  L168              Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-09-24 20:12:59,380 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 699.82 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.6 MB in the beginning and 174.0 MB in the end (delta: -72.4 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB.
[2020-09-24 20:12:59,381 INFO  L168              Benchmark]: Boogie Preprocessor took 104.69 ms. Allocated memory is still 203.4 MB. Free memory was 174.0 MB in the beginning and 169.9 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB.
[2020-09-24 20:12:59,382 INFO  L168              Benchmark]: RCFGBuilder took 1200.49 ms. Allocated memory was 203.4 MB in the beginning and 237.0 MB in the end (delta: 33.6 MB). Free memory was 169.9 MB in the beginning and 184.2 MB in the end (delta: -14.3 MB). Peak memory consumption was 85.9 MB. Max. memory is 7.1 GB.
[2020-09-24 20:12:59,383 INFO  L168              Benchmark]: TraceAbstraction took 14642.84 ms. Allocated memory was 237.0 MB in the beginning and 414.7 MB in the end (delta: 177.7 MB). Free memory was 182.8 MB in the beginning and 149.6 MB in the end (delta: 33.1 MB). Peak memory consumption was 210.9 MB. Max. memory is 7.1 GB.
[2020-09-24 20:12:59,387 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.31 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 699.82 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.6 MB in the beginning and 174.0 MB in the end (delta: -72.4 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 104.69 ms. Allocated memory is still 203.4 MB. Free memory was 174.0 MB in the beginning and 169.9 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1200.49 ms. Allocated memory was 203.4 MB in the beginning and 237.0 MB in the end (delta: 33.6 MB). Free memory was 169.9 MB in the beginning and 184.2 MB in the end (delta: -14.3 MB). Peak memory consumption was 85.9 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 14642.84 ms. Allocated memory was 237.0 MB in the beginning and 414.7 MB in the end (delta: 177.7 MB). Free memory was 182.8 MB in the beginning and 149.6 MB in the end (delta: 33.1 MB). Peak memory consumption was 210.9 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: 14.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 6.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 403 SDtfs, 845 SDslu, 711 SDs, 0 SdLazy, 1152 SolverSat, 262 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=290occurred in iteration=1, 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, 108 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 7.1s InterpolantComputationTime, 500 NumberOfCodeBlocks, 500 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 323 ConstructedInterpolants, 0 QuantifiedInterpolants, 129048 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...