/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product11.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 13:10:50,766 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 13:10:50,770 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 13:10:50,819 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 13:10:50,819 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 13:10:50,823 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 13:10:50,825 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 13:10:50,831 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 13:10:50,837 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 13:10:50,838 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 13:10:50,839 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 13:10:50,842 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 13:10:50,842 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 13:10:50,845 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 13:10:50,847 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 13:10:50,849 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 13:10:50,850 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 13:10:50,854 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 13:10:50,856 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 13:10:50,861 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 13:10:50,863 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 13:10:50,865 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 13:10:50,866 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 13:10:50,867 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 13:10:50,869 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 13:10:50,870 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 13:10:50,870 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 13:10:50,871 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 13:10:50,871 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 13:10:50,872 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 13:10:50,873 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 13:10:50,873 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 13:10:50,874 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 13:10:50,875 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 13:10:50,876 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 13:10:50,876 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 13:10:50,877 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 13:10:50,877 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 13:10:50,878 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 13:10:50,879 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 13:10:50,880 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 13:10:50,880 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-25 13:10:50,906 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 13:10:50,907 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 13:10:50,908 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 13:10:50,909 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 13:10:50,909 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 13:10:50,909 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 13:10:50,909 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 13:10:50,910 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 13:10:50,910 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 13:10:50,910 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 13:10:50,910 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 13:10:50,910 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 13:10:50,910 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 13:10:50,911 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 13:10:50,911 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 13:10:50,911 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 13:10:50,911 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 13:10:50,912 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 13:10:50,912 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 13:10:50,912 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 13:10:50,912 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 13:10:50,912 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 13:10:50,913 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 13:10:50,913 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 13:10:50,913 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 13:10:50,913 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 13:10:50,913 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 13:10:50,914 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 13:10:50,914 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 13:10:50,914 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true;
[2020-09-25 13:10:51,396 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 13:10:51,424 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 13:10:51,431 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 13:10:51,434 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 13:10:51,436 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 13:10:51,437 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product11.cil.c
[2020-09-25 13:10:51,528 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b9db570f9/8408f0de365d4c67849cf564c14ae79b/FLAG8e53c4db3
[2020-09-25 13:10:52,212 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 13:10:52,213 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product11.cil.c
[2020-09-25 13:10:52,232 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b9db570f9/8408f0de365d4c67849cf564c14ae79b/FLAG8e53c4db3
[2020-09-25 13:10:52,447 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b9db570f9/8408f0de365d4c67849cf564c14ae79b
[2020-09-25 13:10:52,461 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 13:10:52,466 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 13:10:52,468 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 13:10:52,468 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 13:10:52,472 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 13:10:52,473 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:10:52" (1/1) ...
[2020-09-25 13:10:52,478 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47743781 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:52, skipping insertion in model container
[2020-09-25 13:10:52,478 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:10:52" (1/1) ...
[2020-09-25 13:10:52,488 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 13:10:52,547 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 13:10:53,013 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 13:10:53,038 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 13:10:53,206 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 13:10:53,249 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 13:10:53,250 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:53 WrapperNode
[2020-09-25 13:10:53,250 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 13:10:53,251 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 13:10:53,251 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 13:10:53,251 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 13:10:53,266 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:53" (1/1) ...
[2020-09-25 13:10:53,267 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:53" (1/1) ...
[2020-09-25 13:10:53,294 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:53" (1/1) ...
[2020-09-25 13:10:53,295 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:53" (1/1) ...
[2020-09-25 13:10:53,327 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:53" (1/1) ...
[2020-09-25 13:10:53,338 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:53" (1/1) ...
[2020-09-25 13:10:53,343 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:53" (1/1) ...
[2020-09-25 13:10:53,351 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 13:10:53,352 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 13:10:53,352 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 13:10:53,352 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 13:10:53,354 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:53" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 13:10:53,458 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 13:10:53,458 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 13:10:53,459 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 13:10:53,459 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 13:10:53,459 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 13:10:53,460 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 13:10:53,460 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 13:10:53,462 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 13:10:53,462 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 13:10:53,462 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 13:10:53,462 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 13:10:53,463 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 13:10:53,463 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 13:10:53,463 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 13:10:53,463 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 13:10:53,464 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 13:10:53,465 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 13:10:53,465 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 13:10:53,465 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 13:10:53,465 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 13:10:53,466 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 13:10:53,466 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base
[2020-09-25 13:10:53,466 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 13:10:53,467 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 13:10:53,467 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 13:10:53,468 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 13:10:53,468 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 13:10:53,468 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-25 13:10:53,468 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 13:10:53,468 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 13:10:53,469 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 13:10:53,469 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 13:10:53,469 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 13:10:53,469 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 13:10:53,469 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 13:10:53,469 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 13:10:53,470 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 13:10:53,470 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 13:10:53,470 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 13:10:53,470 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 13:10:53,470 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 13:10:53,470 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 13:10:53,471 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 13:10:53,471 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 13:10:53,471 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 13:10:53,471 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 13:10:53,471 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 13:10:53,471 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 13:10:53,472 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 13:10:53,472 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 13:10:53,472 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 13:10:53,473 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 13:10:53,473 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 13:10:53,473 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 13:10:53,473 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 13:10:53,474 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 13:10:53,474 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 13:10:53,474 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 13:10:53,474 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 13:10:53,474 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 13:10:53,474 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 13:10:53,474 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 13:10:53,475 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 13:10:53,475 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 13:10:53,475 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 13:10:53,475 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 13:10:53,476 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 13:10:53,476 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 13:10:53,476 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 13:10:53,477 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 13:10:53,477 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 13:10:53,479 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 13:10:53,479 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 13:10:53,479 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 13:10:53,479 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 13:10:53,479 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 13:10:53,480 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 13:10:53,480 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 13:10:53,480 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 13:10:53,480 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-25 13:10:53,480 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 13:10:53,480 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base
[2020-09-25 13:10:53,482 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 13:10:53,482 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 13:10:53,482 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 13:10:53,482 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 13:10:54,595 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 13:10:54,596 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 13:10:54,605 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:10:54 BoogieIcfgContainer
[2020-09-25 13:10:54,605 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 13:10:54,607 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 13:10:54,607 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 13:10:54,611 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 13:10:54,611 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:10:52" (1/3) ...
[2020-09-25 13:10:54,612 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59788528 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:10:54, skipping insertion in model container
[2020-09-25 13:10:54,612 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:53" (2/3) ...
[2020-09-25 13:10:54,612 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59788528 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:10:54, skipping insertion in model container
[2020-09-25 13:10:54,613 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:10:54" (3/3) ...
[2020-09-25 13:10:54,615 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product11.cil.c
[2020-09-25 13:10:54,627 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 13:10:54,638 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 13:10:54,660 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 13:10:54,691 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 13:10:54,691 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 13:10:54,691 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 13:10:54,691 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 13:10:54,691 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 13:10:54,691 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 13:10:54,692 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 13:10:54,692 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 13:10:54,716 INFO  L276                IsEmpty]: Start isEmpty. Operand 277 states.
[2020-09-25 13:10:54,733 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 13:10:54,733 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 13:10:54,735 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 13:10:54,735 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 13:10:54,741 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 13:10:54,742 INFO  L82        PathProgramCache]: Analyzing trace with hash 348388081, now seen corresponding path program 1 times
[2020-09-25 13:10:54,752 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 13:10:54,752 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [215371602]
[2020-09-25 13:10:54,753 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 13:10:55,133 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:10:55,254 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:55,468 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:10:57,085 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:00,172 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:00,173 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 13:11:00,175 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 13:11:00,182 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5029
[2020-09-25 13:11:00,187 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:00,188 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:00,188 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 13:11:00,188 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 80
[2020-09-25 13:11:00,189 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 60
[2020-09-25 13:11:00,189 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 6
[2020-09-25 13:11:00,661 WARN  L193               SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 13:11:00,665 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 13:11:00,719 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:00,764 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:01,027 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:01,028 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 13:11:01,028 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:01,028 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 306
[2020-09-25 13:11:01,028 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:01,033 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:01,033 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:01,034 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:01,034 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 76
[2020-09-25 13:11:01,034 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 5
[2020-09-25 13:11:01,124 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 13:11:01,126 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:01,128 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:01,134 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:01,135 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:11:01,135 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:01,135 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 13:11:01,135 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:01,135 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:01,136 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:01,136 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:01,136 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:11:01,136 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:01,139 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 13:11:01,141 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:01,143 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:01,149 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:01,149 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:11:01,149 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:01,150 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 13:11:01,150 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:01,150 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:01,150 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:01,151 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:01,151 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:11:01,151 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:01,153 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 13:11:01,154 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:01,156 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:01,164 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:01,165 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:11:01,165 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:01,165 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-25 13:11:01,166 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:01,166 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:01,166 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:01,166 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:01,167 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 13:11:01,167 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:01,169 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 13:11:01,170 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:01,172 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:01,176 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:01,176 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:11:01,176 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:01,176 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 13:11:01,177 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:01,177 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:01,177 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:01,177 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:01,178 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:11:01,178 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:01,179 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 13:11:01,180 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:01,182 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:01,184 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:01,184 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:11:01,185 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:01,185 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 13:11:01,185 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:01,185 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:01,186 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:11:01,186 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 13:11:01,186 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:11:01,186 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:01,188 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 13:11:01,189 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:01,191 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:01,193 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:01,193 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:11:01,193 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:01,193 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 13:11:01,194 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:01,194 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:01,194 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:11:01,195 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 13:11:01,195 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:11:01,195 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:01,197 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 13:11:01,198 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:01,200 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:01,202 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:01,202 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:11:01,202 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:01,202 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 13:11:01,203 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:01,203 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:01,203 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:11:01,203 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 13:11:01,204 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:11:01,204 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:01,265 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 13:11:01,266 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [215371602]
[2020-09-25 13:11:01,269 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 13:11:01,269 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-25 13:11:01,270 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124139577]
[2020-09-25 13:11:01,277 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-25 13:11:01,278 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 13:11:01,296 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-25 13:11:01,297 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-25 13:11:01,300 INFO  L87              Difference]: Start difference. First operand 277 states. Second operand 4 states.
[2020-09-25 13:11:01,875 WARN  L193               SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 13:11:03,487 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 13:11:03,488 INFO  L93              Difference]: Finished difference Result 513 states and 628 transitions.
[2020-09-25 13:11:03,488 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-09-25 13:11:03,490 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 153
[2020-09-25 13:11:03,491 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 13:11:03,510 INFO  L225             Difference]: With dead ends: 513
[2020-09-25 13:11:03,511 INFO  L226             Difference]: Without dead ends: 363
[2020-09-25 13:11:03,516 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-09-25 13:11:03,535 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 363 states.
[2020-09-25 13:11:03,676 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 298.
[2020-09-25 13:11:03,677 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 298 states.
[2020-09-25 13:11:03,680 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 327 transitions.
[2020-09-25 13:11:03,682 INFO  L78                 Accepts]: Start accepts. Automaton has 298 states and 327 transitions. Word has length 153
[2020-09-25 13:11:03,683 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 13:11:03,684 INFO  L479      AbstractCegarLoop]: Abstraction has 298 states and 327 transitions.
[2020-09-25 13:11:03,684 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-25 13:11:03,684 INFO  L276                IsEmpty]: Start isEmpty. Operand 298 states and 327 transitions.
[2020-09-25 13:11:03,689 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 158
[2020-09-25 13:11:03,689 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 13:11:03,689 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 13:11:03,690 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 13:11:03,690 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 13:11:03,691 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 13:11:03,691 INFO  L82        PathProgramCache]: Analyzing trace with hash -1227533450, now seen corresponding path program 1 times
[2020-09-25 13:11:03,691 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 13:11:03,691 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1154535219]
[2020-09-25 13:11:03,692 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 13:11:03,743 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:03,798 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:04,012 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:06,981 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:06,981 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 192
[2020-09-25 13:11:06,981 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 13:11:06,982 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3235
[2020-09-25 13:11:06,982 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:06,982 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:06,983 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 13:11:06,983 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 81
[2020-09-25 13:11:06,983 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 95
[2020-09-25 13:11:06,983 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:07,297 WARN  L193               SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 13:11:07,298 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 13:11:07,330 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:07,367 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:07,565 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:07,566 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 13:11:07,566 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:07,566 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 234
[2020-09-25 13:11:07,566 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:07,567 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:07,567 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:07,567 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:07,567 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 77
[2020-09-25 13:11:07,567 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:07,653 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 13:11:07,655 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:07,657 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:07,659 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:07,659 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:11:07,660 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:07,660 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 13:11:07,660 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:07,660 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:07,661 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:07,661 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:07,661 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:11:07,662 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:07,663 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 13:11:07,664 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:07,665 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:07,667 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:07,668 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:11:07,668 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:07,668 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 13:11:07,668 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:07,669 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:07,669 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:07,669 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:07,669 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:11:07,670 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:07,671 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 13:11:07,672 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:07,674 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:07,681 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:07,682 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:11:07,682 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:07,682 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 13:11:07,683 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:07,683 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:07,683 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:07,684 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:07,684 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 13:11:07,684 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:07,686 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 13:11:07,687 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:07,688 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:07,691 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:07,691 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:11:07,691 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:07,692 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 13:11:07,692 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:07,692 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:07,693 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:07,693 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:07,693 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:11:07,694 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:07,695 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118
[2020-09-25 13:11:07,696 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:07,698 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:07,700 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:07,701 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:11:07,701 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:07,701 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 13:11:07,701 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:07,702 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:07,702 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:07,702 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:07,703 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:11:07,703 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:07,705 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125
[2020-09-25 13:11:07,706 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:07,708 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:07,710 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:07,710 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:11:07,711 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:07,711 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 13:11:07,711 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:07,711 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:07,712 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:07,712 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:07,712 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 13:11:07,712 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:07,714 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135
[2020-09-25 13:11:07,715 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:07,717 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:07,724 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:07,725 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:11:07,725 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:07,725 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 13:11:07,725 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:07,726 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:07,726 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 13:11:07,726 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:07,726 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 13:11:07,726 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:07,753 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145
[2020-09-25 13:11:07,754 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:07,756 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:07,757 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:07,758 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:11:07,758 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:07,758 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 13:11:07,759 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:07,759 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:07,759 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:11:07,759 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 13:11:07,760 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:11:07,760 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:07,797 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 13:11:07,798 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1154535219]
[2020-09-25 13:11:07,798 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 13:11:07,798 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2020-09-25 13:11:07,799 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180890282]
[2020-09-25 13:11:07,801 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-25 13:11:07,801 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 13:11:07,802 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-25 13:11:07,802 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2020-09-25 13:11:07,802 INFO  L87              Difference]: Start difference. First operand 298 states and 327 transitions. Second operand 9 states.
[2020-09-25 13:11:08,259 WARN  L193               SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 13:11:09,628 WARN  L193               SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 13:11:09,981 WARN  L193               SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 13:11:10,334 WARN  L193               SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 13:11:10,672 WARN  L193               SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-25 13:11:11,000 WARN  L193               SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 13:11:11,423 WARN  L193               SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 13:11:11,756 WARN  L193               SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 13:11:12,175 WARN  L193               SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 13:11:12,913 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 13:11:12,913 INFO  L93              Difference]: Finished difference Result 730 states and 892 transitions.
[2020-09-25 13:11:12,915 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2020-09-25 13:11:12,915 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 157
[2020-09-25 13:11:12,916 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 13:11:12,923 INFO  L225             Difference]: With dead ends: 730
[2020-09-25 13:11:12,923 INFO  L226             Difference]: Without dead ends: 509
[2020-09-25 13:11:12,927 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306
[2020-09-25 13:11:12,929 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 509 states.
[2020-09-25 13:11:13,008 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 455.
[2020-09-25 13:11:13,008 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 455 states.
[2020-09-25 13:11:13,011 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 513 transitions.
[2020-09-25 13:11:13,012 INFO  L78                 Accepts]: Start accepts. Automaton has 455 states and 513 transitions. Word has length 157
[2020-09-25 13:11:13,012 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 13:11:13,012 INFO  L479      AbstractCegarLoop]: Abstraction has 455 states and 513 transitions.
[2020-09-25 13:11:13,013 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-09-25 13:11:13,013 INFO  L276                IsEmpty]: Start isEmpty. Operand 455 states and 513 transitions.
[2020-09-25 13:11:13,017 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 172
[2020-09-25 13:11:13,017 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 13:11:13,017 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 13:11:13,018 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 13:11:13,018 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 13:11:13,018 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 13:11:13,018 INFO  L82        PathProgramCache]: Analyzing trace with hash -1656398860, now seen corresponding path program 1 times
[2020-09-25 13:11:13,019 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 13:11:13,019 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1356358522]
[2020-09-25 13:11:13,019 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 13:11:13,083 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 13:11:13,091 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 13:11:13,091 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 13:11:13,097 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 13:11:13,125 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:11:13 BoogieIcfgContainer
[2020-09-25 13:11:13,125 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 13:11:13,128 INFO  L168              Benchmark]: Toolchain (without parser) took 20664.68 ms. Allocated memory was 139.5 MB in the beginning and 499.1 MB in the end (delta: 359.7 MB). Free memory was 101.4 MB in the beginning and 406.3 MB in the end (delta: -304.9 MB). Peak memory consumption was 54.7 MB. Max. memory is 7.1 GB.
[2020-09-25 13:11:13,129 INFO  L168              Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.5 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB.
[2020-09-25 13:11:13,130 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 782.81 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 100.9 MB in the beginning and 169.9 MB in the end (delta: -69.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB.
[2020-09-25 13:11:13,131 INFO  L168              Benchmark]: Boogie Preprocessor took 100.81 ms. Allocated memory is still 202.4 MB. Free memory was 169.9 MB in the beginning and 166.0 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB.
[2020-09-25 13:11:13,132 INFO  L168              Benchmark]: RCFGBuilder took 1253.58 ms. Allocated memory was 202.4 MB in the beginning and 235.9 MB in the end (delta: 33.6 MB). Free memory was 165.0 MB in the beginning and 178.8 MB in the end (delta: -13.8 MB). Peak memory consumption was 82.0 MB. Max. memory is 7.1 GB.
[2020-09-25 13:11:13,133 INFO  L168              Benchmark]: TraceAbstraction took 18518.73 ms. Allocated memory was 235.9 MB in the beginning and 499.1 MB in the end (delta: 263.2 MB). Free memory was 178.8 MB in the beginning and 406.3 MB in the end (delta: -227.5 MB). Peak memory consumption was 35.7 MB. Max. memory is 7.1 GB.
[2020-09-25 13:11:13,137 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.27 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.5 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 782.81 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 100.9 MB in the beginning and 169.9 MB in the end (delta: -69.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 100.81 ms. Allocated memory is still 202.4 MB. Free memory was 169.9 MB in the beginning and 166.0 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1253.58 ms. Allocated memory was 202.4 MB in the beginning and 235.9 MB in the end (delta: 33.6 MB). Free memory was 165.0 MB in the beginning and 178.8 MB in the end (delta: -13.8 MB). Peak memory consumption was 82.0 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 18518.73 ms. Allocated memory was 235.9 MB in the beginning and 499.1 MB in the end (delta: 263.2 MB). Free memory was 178.8 MB in the beginning and 406.3 MB in the end (delta: -227.5 MB). Peak memory consumption was 35.7 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 799]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L78]               int cleanupTimeShifts  =    4;
[L386]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L588]              int pumpRunning  =    0;
[L589]              int systemActive  =    1;
[L804]              int waterLevel  =    1;
[L805]              int methaneLevelCritical  =    0;
[L159]              int retValue_acc ;
[L160]              int tmp ;
[L164]  FCALL       select_helpers()
[L165]  FCALL       select_features()
[L166]  CALL, EXPR  valid_product()
[L208]              int retValue_acc ;
[L211]              retValue_acc = 1
[L212]              return (retValue_acc);
[L166]  RET, EXPR   valid_product()
[L166]              tmp = valid_product()
[L168]  COND TRUE   \read(tmp)
[L170]  FCALL       setup()
[L171]  CALL        runTest()
[L150]  CALL        test()
[L729]              int splverifierCounter ;
[L730]              int tmp ;
[L731]              int tmp___0 ;
[L732]              int tmp___1 ;
[L733]              int tmp___2 ;
[L736]              splverifierCounter = 0
[L738]  COND TRUE   1
[L740]  COND TRUE   splverifierCounter < 4
[L746]              tmp = __VERIFIER_nondet_int()
[L748]  COND TRUE   \read(tmp)
[L750]  CALL        waterRise()
[L822]  COND TRUE   waterLevel < 2
[L823]              waterLevel = waterLevel + 1
[L750]  RET         waterRise()
[L756]              tmp___0 = __VERIFIER_nondet_int()
[L758]  COND FALSE  !(\read(tmp___0))
[L766]              tmp___2 = __VERIFIER_nondet_int()
[L768]  COND TRUE   \read(tmp___2)
[L783]  CALL        timeShift()
[L595]  COND FALSE  !(\read(pumpRunning))
[L602]  COND TRUE   \read(systemActive)
[L604]  FCALL       processEnvironment()
[L610]  CALL        __utac_acc__Specification3_spec__1()
[L45]               int tmp ;
[L46]               int tmp___0 ;
[L47]               int tmp___1 ;
[L51]   CALL, EXPR  isMethaneLevelCritical()
[L843]              int retValue_acc ;
[L846]              retValue_acc = methaneLevelCritical
[L847]              return (retValue_acc);
[L51]   RET, EXPR   isMethaneLevelCritical()
[L51]               tmp = isMethaneLevelCritical()
[L53]   COND FALSE  !(\read(tmp))
[L57]   CALL, EXPR  getWaterLevel()
[L875]              int retValue_acc ;
[L878]              retValue_acc = waterLevel
[L879]              return (retValue_acc);
[L57]   RET, EXPR   getWaterLevel()
[L57]               tmp___0 = getWaterLevel()
[L59]   COND TRUE   tmp___0 == 2
[L61]   CALL, EXPR  isPumpRunning()
[L668]              int retValue_acc ;
[L671]              retValue_acc = pumpRunning
[L672]              return (retValue_acc);
[L61]   RET, EXPR   isPumpRunning()
[L61]               tmp___1 = isPumpRunning()
[L63]   COND FALSE  !(\read(tmp___1))
[L67]   CALL        __automaton_fail()
[L799]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 36 procedures, 593 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 18.4s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 7.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 418 SDtfs, 611 SDslu, 785 SDs, 0 SdLazy, 1312 SolverSat, 198 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=455occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 119 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 10.0s InterpolantComputationTime, 481 NumberOfCodeBlocks, 481 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 308 ConstructedInterpolants, 0 QuantifiedInterpolants, 134452 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...