/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=LOWLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product06.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 21:20:49,762 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 21:20:49,766 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 21:20:49,793 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 21:20:49,793 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 21:20:49,795 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 21:20:49,796 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 21:20:49,798 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 21:20:49,800 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 21:20:49,801 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 21:20:49,802 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 21:20:49,803 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 21:20:49,803 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 21:20:49,805 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 21:20:49,806 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 21:20:49,807 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 21:20:49,808 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 21:20:49,809 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 21:20:49,811 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 21:20:49,813 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 21:20:49,815 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 21:20:49,816 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 21:20:49,818 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 21:20:49,819 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 21:20:49,821 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 21:20:49,822 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 21:20:49,822 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 21:20:49,823 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 21:20:49,823 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 21:20:49,825 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 21:20:49,825 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 21:20:49,826 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 21:20:49,827 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 21:20:49,828 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 21:20:49,829 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 21:20:49,829 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 21:20:49,830 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 21:20:49,830 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 21:20:49,830 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 21:20:49,832 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 21:20:49,832 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 21:20:49,833 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-24 21:20:49,875 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 21:20:49,876 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 21:20:49,877 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 21:20:49,877 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 21:20:49,877 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 21:20:49,878 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 21:20:49,879 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 21:20:49,879 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 21:20:49,879 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 21:20:49,879 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 21:20:49,879 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 21:20:49,880 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 21:20:49,880 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 21:20:49,880 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 21:20:49,880 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 21:20:49,880 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 21:20:49,881 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 21:20:49,882 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 21:20:49,882 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 21:20:49,882 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 21:20:49,883 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 21:20:49,883 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 21:20:49,883 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 21:20:49,883 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 21:20:49,884 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 21:20:49,884 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 21:20:49,884 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 21:20:49,885 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 21:20:49,885 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 21:20:49,885 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true;
[2020-09-24 21:20:50,330 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 21:20:50,357 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 21:20:50,362 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 21:20:50,365 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 21:20:50,366 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 21:20:50,367 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product06.cil.c
[2020-09-24 21:20:50,462 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/676bbef4b/e572a54303fe408c9dab8367ffa5f73f/FLAG6ea3cdc87
[2020-09-24 21:20:51,115 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 21:20:51,116 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product06.cil.c
[2020-09-24 21:20:51,138 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/676bbef4b/e572a54303fe408c9dab8367ffa5f73f/FLAG6ea3cdc87
[2020-09-24 21:20:51,351 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/676bbef4b/e572a54303fe408c9dab8367ffa5f73f
[2020-09-24 21:20:51,367 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 21:20:51,374 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 21:20:51,377 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 21:20:51,377 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 21:20:51,381 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 21:20:51,383 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:20:51" (1/1) ...
[2020-09-24 21:20:51,387 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 24.09 09:20:51, skipping insertion in model container
[2020-09-24 21:20:51,388 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:20:51" (1/1) ...
[2020-09-24 21:20:51,398 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 21:20:51,469 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 21:20:51,967 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 21:20:51,989 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 21:20:52,069 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 21:20:52,107 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 21:20:52,108 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:52 WrapperNode
[2020-09-24 21:20:52,108 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 21:20:52,109 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 21:20:52,109 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 21:20:52,109 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 21:20:52,125 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:52" (1/1) ...
[2020-09-24 21:20:52,127 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:52" (1/1) ...
[2020-09-24 21:20:52,158 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:52" (1/1) ...
[2020-09-24 21:20:52,158 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:52" (1/1) ...
[2020-09-24 21:20:52,210 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:52" (1/1) ...
[2020-09-24 21:20:52,221 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:52" (1/1) ...
[2020-09-24 21:20:52,231 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:52" (1/1) ...
[2020-09-24 21:20:52,240 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 21:20:52,240 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 21:20:52,241 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 21:20:52,241 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 21:20:52,242 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:52" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 21:20:52,329 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 21:20:52,329 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 21:20:52,330 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 21:20:52,330 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 21:20:52,330 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 21:20:52,330 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 21:20:52,330 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 21:20:52,331 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 21:20:52,331 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 21:20:52,331 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-24 21:20:52,331 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 21:20:52,331 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 21:20:52,332 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 21:20:52,332 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 21:20:52,332 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 21:20:52,332 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 21:20:52,332 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-24 21:20:52,332 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 21:20:52,333 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 21:20:52,333 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 21:20:52,333 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 21:20:52,333 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 21:20:52,334 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 21:20:52,334 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 21:20:52,334 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 21:20:52,334 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 21:20:52,334 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 21:20:52,334 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 21:20:52,335 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 21:20:52,335 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 21:20:52,335 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 21:20:52,335 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 21:20:52,335 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 21:20:52,335 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 21:20:52,336 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 21:20:52,336 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-24 21:20:52,336 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 21:20:52,336 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 21:20:52,336 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 21:20:52,337 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 21:20:52,337 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 21:20:52,337 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 21:20:52,337 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 21:20:52,337 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 21:20:52,337 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 21:20:52,338 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 21:20:52,338 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 21:20:52,338 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 21:20:52,338 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 21:20:52,338 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 21:20:52,339 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 21:20:52,339 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 21:20:52,339 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-24 21:20:52,339 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-24 21:20:52,339 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 21:20:52,339 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-24 21:20:52,340 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 21:20:52,340 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 21:20:52,340 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 21:20:52,340 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 21:20:52,340 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 21:20:52,340 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 21:20:52,340 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 21:20:52,341 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 21:20:52,341 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 21:20:52,341 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 21:20:52,341 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 21:20:52,341 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 21:20:52,341 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 21:20:52,342 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 21:20:52,342 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 21:20:52,342 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 21:20:52,342 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 21:20:52,342 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 21:20:52,342 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 21:20:52,343 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 21:20:52,343 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 21:20:52,343 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 21:20:52,343 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 21:20:52,343 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 21:20:52,343 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 21:20:52,343 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 21:20:52,344 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 21:20:52,344 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 21:20:52,344 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 21:20:52,344 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 21:20:53,650 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 21:20:53,650 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 21:20:53,660 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:20:53 BoogieIcfgContainer
[2020-09-24 21:20:53,660 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 21:20:53,662 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 21:20:53,662 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 21:20:53,667 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 21:20:53,668 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:20:51" (1/3) ...
[2020-09-24 21:20:53,669 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ac7d520 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:20:53, skipping insertion in model container
[2020-09-24 21:20:53,669 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:52" (2/3) ...
[2020-09-24 21:20:53,670 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ac7d520 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:20:53, skipping insertion in model container
[2020-09-24 21:20:53,670 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:20:53" (3/3) ...
[2020-09-24 21:20:53,673 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product06.cil.c
[2020-09-24 21:20:53,685 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 21:20:53,697 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 21:20:53,720 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 21:20:53,761 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 21:20:53,761 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 21:20:53,761 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 21:20:53,761 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 21:20:53,761 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 21:20:53,762 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 21:20:53,762 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 21:20:53,762 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 21:20:53,786 INFO  L276                IsEmpty]: Start isEmpty. Operand 279 states.
[2020-09-24 21:20:53,804 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-24 21:20:53,804 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 21:20:53,806 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 21:20:53,806 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 21:20:53,812 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 21:20:53,813 INFO  L82        PathProgramCache]: Analyzing trace with hash 1857034691, now seen corresponding path program 1 times
[2020-09-24 21:20:53,822 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 21:20:53,823 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1814513377]
[2020-09-24 21:20:53,823 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 21:20:54,161 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:20:54,290 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:20:54,529 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:20:56,062 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:20:59,189 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:20:59,189 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-24 21:20:59,190 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 21:20:59,190 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5019
[2020-09-24 21:20:59,194 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:20:59,195 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-24 21:20:59,195 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 78
[2020-09-24 21:20:59,196 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 62
[2020-09-24 21:20:59,196 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 5
[2020-09-24 21:20:59,833 WARN  L193               SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 21:20:59,836 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 21:20:59,880 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:20:59,921 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:00,149 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:00,150 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 21:21:00,150 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:00,150 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 268
[2020-09-24 21:21:00,150 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:00,151 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:00,151 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:00,151 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 74
[2020-09-24 21:21:00,151 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:00,227 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 21:21:00,229 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:00,233 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:00,237 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:00,237 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:21:00,238 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:00,238 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 21:21:00,238 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:00,238 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:00,239 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:00,239 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:21:00,239 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:00,241 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 21:21:00,242 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:00,243 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:00,246 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:00,246 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:21:00,247 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:00,247 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 21:21:00,247 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:00,247 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:00,247 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:00,248 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:21:00,248 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:00,250 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 21:21:00,252 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:00,254 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:00,262 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:00,262 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:00,262 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:00,263 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-24 21:21:00,263 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:00,263 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:00,263 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:00,264 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 21:21:00,264 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:00,266 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 21:21:00,267 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:00,269 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:00,272 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:00,273 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:21:00,274 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:00,274 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 21:21:00,274 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:00,274 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:00,274 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:00,275 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:21:00,275 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:00,277 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-24 21:21:00,278 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:00,281 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:00,284 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:00,284 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:00,284 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:00,285 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 21:21:00,285 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:00,285 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:21:00,285 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 21:21:00,285 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:21:00,286 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:00,289 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-24 21:21:00,290 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:00,291 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:00,295 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:00,296 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:00,297 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:00,297 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 21:21:00,297 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:00,297 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:21:00,298 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 21:21:00,298 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:21:00,298 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:00,300 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-24 21:21:00,304 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:00,305 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:00,307 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:00,308 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:00,308 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:00,308 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 21:21:00,308 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:00,309 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:21:00,309 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 21:21:00,309 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:21:00,309 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:00,355 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 21:21:00,356 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1814513377]
[2020-09-24 21:21:00,358 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 21:21:00,358 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-24 21:21:00,359 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520198705]
[2020-09-24 21:21:00,372 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-24 21:21:00,373 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 21:21:00,390 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-24 21:21:00,392 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-24 21:21:00,394 INFO  L87              Difference]: Start difference. First operand 279 states. Second operand 4 states.
[2020-09-24 21:21:01,090 WARN  L193               SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 21:21:02,185 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 21:21:02,185 INFO  L93              Difference]: Finished difference Result 422 states and 505 transitions.
[2020-09-24 21:21:02,186 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-09-24 21:21:02,187 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 153
[2020-09-24 21:21:02,189 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 21:21:02,208 INFO  L225             Difference]: With dead ends: 422
[2020-09-24 21:21:02,209 INFO  L226             Difference]: Without dead ends: 268
[2020-09-24 21:21:02,215 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-09-24 21:21:02,238 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 268 states.
[2020-09-24 21:21:02,320 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 228.
[2020-09-24 21:21:02,322 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 228 states.
[2020-09-24 21:21:02,324 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 245 transitions.
[2020-09-24 21:21:02,329 INFO  L78                 Accepts]: Start accepts. Automaton has 228 states and 245 transitions. Word has length 153
[2020-09-24 21:21:02,330 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 21:21:02,330 INFO  L479      AbstractCegarLoop]: Abstraction has 228 states and 245 transitions.
[2020-09-24 21:21:02,330 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-24 21:21:02,330 INFO  L276                IsEmpty]: Start isEmpty. Operand 228 states and 245 transitions.
[2020-09-24 21:21:02,338 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 163
[2020-09-24 21:21:02,338 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 21:21:02,339 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 21:21:02,339 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 21:21:02,340 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 21:21:02,340 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 21:21:02,340 INFO  L82        PathProgramCache]: Analyzing trace with hash 874742450, now seen corresponding path program 1 times
[2020-09-24 21:21:02,340 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 21:21:02,341 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1053658436]
[2020-09-24 21:21:02,341 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 21:21:02,394 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:02,447 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:02,658 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:05,586 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:05,586 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 199
[2020-09-24 21:21:05,587 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 21:21:05,587 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3189
[2020-09-24 21:21:05,587 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:05,587 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-24 21:21:05,588 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 79
[2020-09-24 21:21:05,588 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 104
[2020-09-24 21:21:05,594 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 6
[2020-09-24 21:21:05,971 WARN  L193               SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 21:21:05,973 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 21:21:06,003 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:06,039 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:06,231 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:06,231 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 21:21:06,231 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:06,232 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 225
[2020-09-24 21:21:06,232 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:06,232 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:06,232 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:06,232 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 75
[2020-09-24 21:21:06,233 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:06,272 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 21:21:06,273 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:06,274 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:06,277 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:06,277 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:21:06,278 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:06,278 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 21:21:06,278 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:06,279 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:06,279 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:06,279 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:21:06,280 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:06,281 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 21:21:06,282 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:06,284 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:06,287 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:06,287 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:21:06,288 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:06,288 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 21:21:06,288 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:06,289 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:06,289 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:06,289 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:21:06,290 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:06,291 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 21:21:06,292 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:06,294 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:06,302 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:06,302 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:06,302 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:06,302 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 21:21:06,303 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:06,303 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:06,303 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:06,303 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 21:21:06,303 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:06,306 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 21:21:06,307 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:06,308 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:06,311 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:06,311 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:21:06,312 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:06,312 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 21:21:06,313 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:06,313 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:06,313 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:06,314 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:21:06,314 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:06,328 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118
[2020-09-24 21:21:06,330 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:06,332 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:06,336 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:06,336 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-24 21:21:06,337 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:06,337 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 21:21:06,337 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:06,338 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:06,338 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:06,338 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 11
[2020-09-24 21:21:06,339 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:06,341 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 21:21:06,342 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:06,343 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:06,344 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:06,344 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:21:06,344 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:06,345 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 21:21:06,345 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:06,345 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:21:06,345 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:06,346 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:21:06,346 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:06,347 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130
[2020-09-24 21:21:06,348 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:06,350 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:06,352 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:06,353 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:06,353 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:06,353 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 21:21:06,353 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:06,354 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:06,354 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:06,354 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 21:21:06,354 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:06,356 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140
[2020-09-24 21:21:06,357 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:06,360 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:06,368 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:06,369 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:06,369 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:06,370 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-24 21:21:06,370 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:06,370 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 21:21:06,370 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:06,371 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 21:21:06,371 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:06,415 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150
[2020-09-24 21:21:06,417 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:06,418 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:06,420 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:06,420 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:06,420 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:06,420 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 21:21:06,421 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:06,421 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:21:06,421 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 21:21:06,421 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:21:06,421 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:06,470 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 21:21:06,470 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1053658436]
[2020-09-24 21:21:06,471 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 21:21:06,471 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2020-09-24 21:21:06,472 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964247797]
[2020-09-24 21:21:06,474 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 10 states
[2020-09-24 21:21:06,475 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 21:21:06,475 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2020-09-24 21:21:06,475 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90
[2020-09-24 21:21:06,476 INFO  L87              Difference]: Start difference. First operand 228 states and 245 transitions. Second operand 10 states.
[2020-09-24 21:21:06,964 WARN  L193               SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 21:21:09,043 WARN  L193               SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 21:21:09,821 WARN  L193               SmtUtils]: Spent 616.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192
[2020-09-24 21:21:10,150 WARN  L193               SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 21:21:10,499 WARN  L193               SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-24 21:21:10,819 WARN  L193               SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 21:21:11,354 WARN  L193               SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 21:21:11,682 WARN  L193               SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 192
[2020-09-24 21:21:12,010 WARN  L193               SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 21:21:12,934 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 21:21:12,935 INFO  L93              Difference]: Finished difference Result 569 states and 719 transitions.
[2020-09-24 21:21:12,935 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2020-09-24 21:21:12,936 INFO  L78                 Accepts]: Start accepts. Automaton has 10 states. Word has length 162
[2020-09-24 21:21:12,937 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 21:21:12,943 INFO  L225             Difference]: With dead ends: 569
[2020-09-24 21:21:12,944 INFO  L226             Difference]: Without dead ends: 427
[2020-09-24 21:21:12,947 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380
[2020-09-24 21:21:12,949 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 427 states.
[2020-09-24 21:21:13,019 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 331.
[2020-09-24 21:21:13,019 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 331 states.
[2020-09-24 21:21:13,022 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 366 transitions.
[2020-09-24 21:21:13,022 INFO  L78                 Accepts]: Start accepts. Automaton has 331 states and 366 transitions. Word has length 162
[2020-09-24 21:21:13,023 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 21:21:13,023 INFO  L479      AbstractCegarLoop]: Abstraction has 331 states and 366 transitions.
[2020-09-24 21:21:13,023 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 10 states.
[2020-09-24 21:21:13,023 INFO  L276                IsEmpty]: Start isEmpty. Operand 331 states and 366 transitions.
[2020-09-24 21:21:13,032 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 181
[2020-09-24 21:21:13,032 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 21:21:13,032 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 21:21:13,033 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 21:21:13,033 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 21:21:13,033 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 21:21:13,034 INFO  L82        PathProgramCache]: Analyzing trace with hash -1398687596, now seen corresponding path program 1 times
[2020-09-24 21:21:13,034 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 21:21:13,034 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1073490662]
[2020-09-24 21:21:13,034 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 21:21:13,097 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-24 21:21:13,105 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-24 21:21:13,105 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-24 21:21:13,111 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 21:21:13,139 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 09:21:13 BoogieIcfgContainer
[2020-09-24 21:21:13,139 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 21:21:13,142 INFO  L168              Benchmark]: Toolchain (without parser) took 21771.72 ms. Allocated memory was 140.0 MB in the beginning and 540.0 MB in the end (delta: 400.0 MB). Free memory was 102.5 MB in the beginning and 120.6 MB in the end (delta: -18.1 MB). Peak memory consumption was 381.9 MB. Max. memory is 7.1 GB.
[2020-09-24 21:21:13,143 INFO  L168              Benchmark]: CDTParser took 0.22 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 21:21:13,144 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 732.02 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.8 MB in the beginning and 172.0 MB in the end (delta: -70.3 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB.
[2020-09-24 21:21:13,145 INFO  L168              Benchmark]: Boogie Preprocessor took 130.99 ms. Allocated memory is still 203.4 MB. Free memory was 172.0 MB in the beginning and 168.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB.
[2020-09-24 21:21:13,146 INFO  L168              Benchmark]: RCFGBuilder took 1419.86 ms. Allocated memory was 203.4 MB in the beginning and 237.0 MB in the end (delta: 33.6 MB). Free memory was 168.0 MB in the beginning and 181.6 MB in the end (delta: -13.7 MB). Peak memory consumption was 83.9 MB. Max. memory is 7.1 GB.
[2020-09-24 21:21:13,147 INFO  L168              Benchmark]: TraceAbstraction took 19477.49 ms. Allocated memory was 237.0 MB in the beginning and 540.0 MB in the end (delta: 303.0 MB). Free memory was 181.6 MB in the beginning and 120.6 MB in the end (delta: 61.1 MB). Peak memory consumption was 364.1 MB. Max. memory is 7.1 GB.
[2020-09-24 21:21:13,151 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.22 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 732.02 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.8 MB in the beginning and 172.0 MB in the end (delta: -70.3 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 130.99 ms. Allocated memory is still 203.4 MB. Free memory was 172.0 MB in the beginning and 168.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1419.86 ms. Allocated memory was 203.4 MB in the beginning and 237.0 MB in the end (delta: 33.6 MB). Free memory was 168.0 MB in the beginning and 181.6 MB in the end (delta: -13.7 MB). Peak memory consumption was 83.9 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 19477.49 ms. Allocated memory was 237.0 MB in the beginning and 540.0 MB in the end (delta: 303.0 MB). Free memory was 181.6 MB in the beginning and 120.6 MB in the end (delta: 61.1 MB). Peak memory consumption was 364.1 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L96]               int pumpRunning  =    0;
[L97]               int systemActive  =    1;
[L309]              int waterLevel  =    1;
[L310]              int methaneLevelCritical  =    0;
[L389]              int cleanupTimeShifts  =    4;
[L654]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L462]              int retValue_acc ;
[L463]              int tmp ;
[L467]  FCALL       select_helpers()
[L468]  FCALL       select_features()
[L469]  CALL, EXPR  valid_product()
[L78]               int retValue_acc ;
[L81]               retValue_acc = 1
[L82]               return (retValue_acc);
[L469]  RET, EXPR   valid_product()
[L469]              tmp = valid_product()
[L471]  COND TRUE   \read(tmp)
[L473]  FCALL       setup()
[L474]  CALL        runTest()
[L456]  CALL        test()
[L242]              int splverifierCounter ;
[L243]              int tmp ;
[L244]              int tmp___0 ;
[L245]              int tmp___1 ;
[L246]              int tmp___2 ;
[L249]              splverifierCounter = 0
[L251]  COND TRUE   1
[L253]  COND TRUE   splverifierCounter < 4
[L259]              tmp = __VERIFIER_nondet_int()
[L261]  COND TRUE   \read(tmp)
[L263]  CALL        waterRise()
[L327]  COND TRUE   waterLevel < 2
[L328]              waterLevel = waterLevel + 1
[L263]  RET         waterRise()
[L269]              tmp___0 = __VERIFIER_nondet_int()
[L271]  COND FALSE  !(\read(tmp___0))
[L279]              tmp___2 = __VERIFIER_nondet_int()
[L281]  COND TRUE   \read(tmp___2)
[L283]  CALL        startSystem()
[L233]              systemActive = 1
[L283]  RET         startSystem()
[L296]  CALL        timeShift()
[L104]  COND FALSE  !(\read(pumpRunning))
[L111]  COND TRUE   \read(systemActive)
[L113]  CALL        processEnvironment()
[L133]              int tmp ;
[L136]  COND FALSE  !(\read(pumpRunning))
[L151]  FCALL       processEnvironment__wrappee__base()
[L113]  RET         processEnvironment()
[L119]  CALL        __utac_acc__Specification3_spec__1()
[L852]              int tmp ;
[L853]              int tmp___0 ;
[L854]              int tmp___1 ;
[L858]  CALL, EXPR  isMethaneLevelCritical()
[L348]              int retValue_acc ;
[L351]              retValue_acc = methaneLevelCritical
[L352]              return (retValue_acc);
[L858]  RET, EXPR   isMethaneLevelCritical()
[L858]              tmp = isMethaneLevelCritical()
[L860]  COND FALSE  !(\read(tmp))
[L864]  CALL, EXPR  getWaterLevel()
[L380]              int retValue_acc ;
[L383]              retValue_acc = waterLevel
[L384]              return (retValue_acc);
[L864]  RET, EXPR   getWaterLevel()
[L864]              tmp___0 = getWaterLevel()
[L866]  COND TRUE   tmp___0 == 2
[L868]  CALL, EXPR  isPumpRunning()
[L185]              int retValue_acc ;
[L188]              retValue_acc = pumpRunning
[L189]              return (retValue_acc);
[L868]  RET, EXPR   isPumpRunning()
[L868]              tmp___1 = isPumpRunning()
[L870]  COND FALSE  !(\read(tmp___1))
[L874]  CALL        __automaton_fail()
[L44]               __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 36 procedures, 594 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 19.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 8.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 445 SDtfs, 777 SDslu, 768 SDs, 0 SdLazy, 1531 SolverSat, 275 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=331occurred 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, 136 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 10.1s InterpolantComputationTime, 495 NumberOfCodeBlocks, 495 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 313 ConstructedInterpolants, 0 QuantifiedInterpolants, 140665 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...