/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product02.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 14:17:51,649 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 14:17:51,653 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 14:17:51,679 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 14:17:51,680 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 14:17:51,681 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 14:17:51,683 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 14:17:51,685 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 14:17:51,687 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 14:17:51,687 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 14:17:51,689 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 14:17:51,690 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 14:17:51,690 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 14:17:51,691 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 14:17:51,692 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 14:17:51,694 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 14:17:51,695 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 14:17:51,696 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 14:17:51,698 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 14:17:51,700 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 14:17:51,702 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 14:17:51,703 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 14:17:51,704 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 14:17:51,705 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 14:17:51,708 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 14:17:51,708 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 14:17:51,708 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 14:17:51,709 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 14:17:51,710 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 14:17:51,711 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 14:17:51,712 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 14:17:51,713 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 14:17:51,713 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 14:17:51,714 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 14:17:51,716 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 14:17:51,716 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 14:17:51,717 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 14:17:51,717 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 14:17:51,717 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2020-09-25 14:17:51,719 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 14:17:51,720 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-25 14:17:51,748 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 14:17:51,748 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 14:17:51,749 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 14:17:51,750 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 14:17:51,750 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 14:17:51,750 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 14:17:51,750 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 14:17:51,750 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 14:17:51,751 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 14:17:51,751 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 14:17:51,751 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 14:17:51,751 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 14:17:51,751 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 14:17:51,752 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 14:17:51,752 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 14:17:51,752 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 14:17:51,752 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 14:17:51,752 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 14:17:51,753 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 14:17:51,753 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 14:17:51,753 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 14:17:51,753 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 14:17:51,754 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 14:17:51,754 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 14:17:51,754 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 14:17:51,754 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 14:17:51,754 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 14:17:51,754 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 14:17:51,755 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 14:17:51,755 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true;
[2020-09-25 14:17:52,245 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 14:17:52,263 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 14:17:52,268 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 14:17:52,269 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 14:17:52,270 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 14:17:52,271 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product02.cil.c
[2020-09-25 14:17:52,351 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9e95d8503/a0f271e6df22433e91ef749f49918b91/FLAGb626abc2b
[2020-09-25 14:17:52,903 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 14:17:52,904 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product02.cil.c
[2020-09-25 14:17:52,934 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9e95d8503/a0f271e6df22433e91ef749f49918b91/FLAGb626abc2b
[2020-09-25 14:17:53,182 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9e95d8503/a0f271e6df22433e91ef749f49918b91
[2020-09-25 14:17:53,195 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 14:17:53,203 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 14:17:53,207 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 14:17:53,208 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 14:17:53,212 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 14:17:53,213 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:17:53" (1/1) ...
[2020-09-25 14:17:53,218 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@407cd36d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:53, skipping insertion in model container
[2020-09-25 14:17:53,219 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:17:53" (1/1) ...
[2020-09-25 14:17:53,231 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 14:17:53,279 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 14:17:53,809 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 14:17:53,827 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 14:17:53,932 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 14:17:53,965 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 14:17:53,965 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:53 WrapperNode
[2020-09-25 14:17:53,965 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 14:17:53,966 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 14:17:53,967 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 14:17:53,967 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 14:17:53,982 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:53" (1/1) ...
[2020-09-25 14:17:53,983 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:53" (1/1) ...
[2020-09-25 14:17:54,004 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:53" (1/1) ...
[2020-09-25 14:17:54,005 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:53" (1/1) ...
[2020-09-25 14:17:54,038 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:53" (1/1) ...
[2020-09-25 14:17:54,057 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:53" (1/1) ...
[2020-09-25 14:17:54,063 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:53" (1/1) ...
[2020-09-25 14:17:54,087 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 14:17:54,087 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 14:17:54,087 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 14:17:54,088 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 14:17:54,095 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:53" (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 14:17:54,181 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 14:17:54,181 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 14:17:54,181 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 14:17:54,182 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 14:17:54,182 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 14:17:54,182 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 14:17:54,182 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 14:17:54,182 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 14:17:54,183 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 14:17:54,183 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 14:17:54,183 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 14:17:54,183 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 14:17:54,183 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 14:17:54,184 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 14:17:54,184 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 14:17:54,184 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 14:17:54,184 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 14:17:54,184 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 14:17:54,185 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 14:17:54,185 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 14:17:54,185 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 14:17:54,185 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-25 14:17:54,186 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 14:17:54,186 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 14:17:54,186 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 14:17:54,186 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 14:17:54,186 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 14:17:54,186 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 14:17:54,187 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 14:17:54,187 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 14:17:54,187 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 14:17:54,187 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 14:17:54,187 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 14:17:54,187 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 14:17:54,188 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 14:17:54,188 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 14:17:54,188 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 14:17:54,188 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 14:17:54,188 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 14:17:54,188 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 14:17:54,189 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 14:17:54,189 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 14:17:54,189 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 14:17:54,189 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 14:17:54,189 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 14:17:54,189 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 14:17:54,190 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 14:17:54,190 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 14:17:54,190 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 14:17:54,190 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 14:17:54,190 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 14:17:54,190 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 14:17:54,191 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 14:17:54,191 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 14:17:54,191 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 14:17:54,191 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 14:17:54,191 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 14:17:54,191 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 14:17:54,192 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 14:17:54,192 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 14:17:54,192 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 14:17:54,192 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 14:17:54,192 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 14:17:54,192 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 14:17:54,193 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 14:17:54,193 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 14:17:54,193 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 14:17:54,193 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 14:17:54,193 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-25 14:17:54,193 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 14:17:54,194 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 14:17:54,194 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 14:17:54,194 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 14:17:54,194 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 14:17:54,194 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 14:17:54,194 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 14:17:54,194 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 14:17:54,195 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 14:17:54,195 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 14:17:54,195 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 14:17:54,195 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 14:17:54,195 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 14:17:54,195 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 14:17:54,196 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 14:17:55,410 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 14:17:55,410 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 14:17:55,417 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:17:55 BoogieIcfgContainer
[2020-09-25 14:17:55,418 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 14:17:55,419 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 14:17:55,419 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 14:17:55,423 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 14:17:55,423 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:17:53" (1/3) ...
[2020-09-25 14:17:55,424 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@faa68ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:17:55, skipping insertion in model container
[2020-09-25 14:17:55,424 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:53" (2/3) ...
[2020-09-25 14:17:55,424 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@faa68ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:17:55, skipping insertion in model container
[2020-09-25 14:17:55,425 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:17:55" (3/3) ...
[2020-09-25 14:17:55,427 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product02.cil.c
[2020-09-25 14:17:55,438 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 14:17:55,450 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 14:17:55,471 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 14:17:55,501 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 14:17:55,501 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 14:17:55,501 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 14:17:55,501 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 14:17:55,501 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 14:17:55,502 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 14:17:55,502 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 14:17:55,502 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 14:17:55,530 INFO  L276                IsEmpty]: Start isEmpty. Operand 262 states.
[2020-09-25 14:17:55,547 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 14:17:55,547 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 14:17:55,549 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 14:17:55,549 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 14:17:55,557 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 14:17:55,557 INFO  L82        PathProgramCache]: Analyzing trace with hash -96465303, now seen corresponding path program 1 times
[2020-09-25 14:17:55,569 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 14:17:55,569 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1633430357]
[2020-09-25 14:17:55,570 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 14:17:55,943 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:17:56,162 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:17:56,371 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:17:57,965 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:00,959 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:00,961 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 14:18:00,961 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 14:18:00,961 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5005
[2020-09-25 14:18:00,967 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:00,972 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:00,973 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 14:18:00,973 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 79
[2020-09-25 14:18:00,974 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 61
[2020-09-25 14:18:00,974 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 12
[2020-09-25 14:18:01,491 WARN  L193               SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 14:18:01,493 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 14:18:01,534 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:01,577 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:01,817 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:01,817 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 14:18:01,817 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:01,818 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 281
[2020-09-25 14:18:01,818 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:01,818 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:01,818 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:01,819 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:01,819 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 75
[2020-09-25 14:18:01,819 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:01,896 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 14:18:01,898 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:01,900 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:01,903 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:01,904 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:01,904 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:01,904 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 14:18:01,904 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:01,904 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:01,905 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:01,905 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:01,905 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:01,905 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:01,908 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 14:18:01,909 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:01,911 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:01,915 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:01,915 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:01,915 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:01,915 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 14:18:01,916 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:01,916 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:01,916 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:01,916 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:01,917 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:01,917 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:01,919 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 14:18:01,920 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:01,922 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:01,931 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:01,932 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:01,932 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:01,932 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 14:18:01,933 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:01,933 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:01,934 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:01,934 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:01,934 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 14:18:01,935 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:01,937 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 14:18:01,938 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:01,940 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:01,943 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:01,944 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:01,944 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:01,944 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 14:18:01,944 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:01,945 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:01,945 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:01,945 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:01,945 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:01,945 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:01,947 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 14:18:01,948 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:01,950 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:01,952 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:01,952 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:01,953 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:01,953 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:18:01,953 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:01,953 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:01,953 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:18:01,954 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 14:18:01,954 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:18:01,954 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:01,956 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 14:18:01,957 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:01,958 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:01,960 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:01,961 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:01,961 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:01,961 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 14:18:01,961 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:01,961 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:01,962 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:18:01,962 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 14:18:01,962 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:18:01,962 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:01,964 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 14:18:01,965 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:01,967 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:01,969 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:01,969 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:01,969 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:01,970 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:18:01,970 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:01,970 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:01,970 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:18:01,971 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 14:18:01,971 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:18:01,971 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:02,007 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 14:18:02,008 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1633430357]
[2020-09-25 14:18:02,010 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 14:18:02,010 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-25 14:18:02,012 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068183011]
[2020-09-25 14:18:02,022 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-25 14:18:02,023 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 14:18:02,042 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-25 14:18:02,043 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-25 14:18:02,046 INFO  L87              Difference]: Start difference. First operand 262 states. Second operand 4 states.
[2020-09-25 14:18:02,661 WARN  L193               SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 14:18:03,529 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 14:18:03,530 INFO  L93              Difference]: Finished difference Result 374 states and 448 transitions.
[2020-09-25 14:18:03,531 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-09-25 14:18:03,532 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 153
[2020-09-25 14:18:03,534 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 14:18:03,553 INFO  L225             Difference]: With dead ends: 374
[2020-09-25 14:18:03,553 INFO  L226             Difference]: Without dead ends: 243
[2020-09-25 14:18:03,559 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-09-25 14:18:03,585 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 243 states.
[2020-09-25 14:18:03,662 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 205.
[2020-09-25 14:18:03,664 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 205 states.
[2020-09-25 14:18:03,667 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 218 transitions.
[2020-09-25 14:18:03,670 INFO  L78                 Accepts]: Start accepts. Automaton has 205 states and 218 transitions. Word has length 153
[2020-09-25 14:18:03,672 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 14:18:03,672 INFO  L479      AbstractCegarLoop]: Abstraction has 205 states and 218 transitions.
[2020-09-25 14:18:03,673 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-25 14:18:03,674 INFO  L276                IsEmpty]: Start isEmpty. Operand 205 states and 218 transitions.
[2020-09-25 14:18:03,681 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 158
[2020-09-25 14:18:03,681 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 14:18:03,682 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 14:18:03,682 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 14:18:03,682 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 14:18:03,683 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 14:18:03,684 INFO  L82        PathProgramCache]: Analyzing trace with hash -1405281004, now seen corresponding path program 1 times
[2020-09-25 14:18:03,684 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 14:18:03,684 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1709282572]
[2020-09-25 14:18:03,690 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 14:18:03,808 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:03,873 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:04,105 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:07,193 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:07,194 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 192
[2020-09-25 14:18:07,194 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 14:18:07,195 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3381
[2020-09-25 14:18:07,195 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:07,195 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:07,196 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 14:18:07,196 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 81
[2020-09-25 14:18:07,197 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 95
[2020-09-25 14:18:07,197 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:07,617 WARN  L193               SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 14:18:07,618 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 14:18:07,655 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:07,693 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:07,909 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:07,909 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 14:18:07,910 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:07,910 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 253
[2020-09-25 14:18:07,910 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:07,911 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:07,911 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:07,911 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:07,911 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 77
[2020-09-25 14:18:07,912 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:07,975 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 14:18:07,976 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:07,978 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:07,982 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:07,982 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:07,982 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:07,983 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 14:18:07,983 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:07,983 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:07,984 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:07,984 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:07,984 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:07,984 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:07,986 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 14:18:07,987 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:07,989 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:07,992 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:07,992 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:07,992 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:07,992 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:18:07,993 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:07,993 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:07,993 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:07,994 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:07,994 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:07,994 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:07,996 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 14:18:07,997 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:08,000 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:08,009 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:08,010 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:08,010 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:08,011 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 14:18:08,011 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:08,011 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:08,012 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:08,012 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:08,012 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 14:18:08,013 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:08,015 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 14:18:08,016 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:08,018 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:08,020 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:08,021 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:08,021 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:08,022 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:18:08,022 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:08,023 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:08,023 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:08,023 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:08,024 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:08,024 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 14:18:08,026 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118
[2020-09-25 14:18:08,027 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:08,028 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:08,032 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:08,032 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:08,033 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:08,033 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 14:18:08,033 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:08,034 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:08,034 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:08,034 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:08,035 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:08,035 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:08,036 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125
[2020-09-25 14:18:08,038 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:08,039 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:08,042 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:08,043 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:08,043 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:08,043 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 14:18:08,044 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:08,044 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:08,074 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:08,075 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:08,075 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 14:18:08,075 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 31
[2020-09-25 14:18:08,085 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135
[2020-09-25 14:18:08,086 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:08,088 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:08,095 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:08,096 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:08,096 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:08,097 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-25 14:18:08,097 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:08,097 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:08,098 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 14:18:08,098 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:08,098 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 14:18:08,099 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:08,129 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145
[2020-09-25 14:18:08,130 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:08,132 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:08,133 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:08,134 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:08,134 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:08,134 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 14:18:08,134 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:08,135 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:08,135 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:18:08,135 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 14:18:08,135 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:18:08,136 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:08,175 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 14:18:08,176 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1709282572]
[2020-09-25 14:18:08,176 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 14:18:08,176 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2020-09-25 14:18:08,177 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987067870]
[2020-09-25 14:18:08,179 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-25 14:18:08,179 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 14:18:08,179 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-25 14:18:08,180 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2020-09-25 14:18:08,180 INFO  L87              Difference]: Start difference. First operand 205 states and 218 transitions. Second operand 9 states.
[2020-09-25 14:18:08,654 WARN  L193               SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 14:18:09,874 WARN  L193               SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 14:18:10,200 WARN  L193               SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 14:18:10,529 WARN  L193               SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 14:18:10,862 WARN  L193               SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-25 14:18:11,162 WARN  L193               SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 14:18:11,609 WARN  L193               SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 14:18:11,909 WARN  L193               SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 14:18:12,292 WARN  L193               SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 14:18:13,035 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 14:18:13,036 INFO  L93              Difference]: Finished difference Result 432 states and 514 transitions.
[2020-09-25 14:18:13,036 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2020-09-25 14:18:13,036 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 157
[2020-09-25 14:18:13,037 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 14:18:13,046 INFO  L225             Difference]: With dead ends: 432
[2020-09-25 14:18:13,046 INFO  L226             Difference]: Without dead ends: 320
[2020-09-25 14:18:13,053 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306
[2020-09-25 14:18:13,055 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 320 states.
[2020-09-25 14:18:13,130 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 283.
[2020-09-25 14:18:13,130 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 283 states.
[2020-09-25 14:18:13,132 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 309 transitions.
[2020-09-25 14:18:13,132 INFO  L78                 Accepts]: Start accepts. Automaton has 283 states and 309 transitions. Word has length 157
[2020-09-25 14:18:13,133 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 14:18:13,133 INFO  L479      AbstractCegarLoop]: Abstraction has 283 states and 309 transitions.
[2020-09-25 14:18:13,133 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-09-25 14:18:13,133 INFO  L276                IsEmpty]: Start isEmpty. Operand 283 states and 309 transitions.
[2020-09-25 14:18:13,137 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 176
[2020-09-25 14:18:13,137 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 14:18:13,137 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 14:18:13,138 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 14:18:13,138 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 14:18:13,138 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 14:18:13,138 INFO  L82        PathProgramCache]: Analyzing trace with hash -1378336310, now seen corresponding path program 1 times
[2020-09-25 14:18:13,139 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 14:18:13,139 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1393039298]
[2020-09-25 14:18:13,139 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 14:18:13,206 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 14:18:13,214 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 14:18:13,214 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 14:18:13,219 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 14:18:13,247 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:18:13 BoogieIcfgContainer
[2020-09-25 14:18:13,248 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 14:18:13,250 INFO  L168              Benchmark]: Toolchain (without parser) took 20053.00 ms. Allocated memory was 137.9 MB in the beginning and 477.1 MB in the end (delta: 339.2 MB). Free memory was 100.1 MB in the beginning and 93.2 MB in the end (delta: 6.9 MB). Peak memory consumption was 346.1 MB. Max. memory is 7.1 GB.
[2020-09-25 14:18:13,251 INFO  L168              Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-09-25 14:18:13,252 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 758.77 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 99.4 MB in the beginning and 170.7 MB in the end (delta: -71.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB.
[2020-09-25 14:18:13,253 INFO  L168              Benchmark]: Boogie Preprocessor took 120.36 ms. Allocated memory is still 201.3 MB. Free memory was 170.7 MB in the beginning and 166.4 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB.
[2020-09-25 14:18:13,254 INFO  L168              Benchmark]: RCFGBuilder took 1330.49 ms. Allocated memory was 201.3 MB in the beginning and 231.7 MB in the end (delta: 30.4 MB). Free memory was 166.4 MB in the beginning and 181.9 MB in the end (delta: -15.5 MB). Peak memory consumption was 87.7 MB. Max. memory is 7.1 GB.
[2020-09-25 14:18:13,255 INFO  L168              Benchmark]: TraceAbstraction took 17828.98 ms. Allocated memory was 231.7 MB in the beginning and 477.1 MB in the end (delta: 245.4 MB). Free memory was 180.5 MB in the beginning and 93.2 MB in the end (delta: 87.2 MB). Peak memory consumption was 332.6 MB. Max. memory is 7.1 GB.
[2020-09-25 14:18:13,259 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.30 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 758.77 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 99.4 MB in the beginning and 170.7 MB in the end (delta: -71.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 120.36 ms. Allocated memory is still 201.3 MB. Free memory was 170.7 MB in the beginning and 166.4 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1330.49 ms. Allocated memory was 201.3 MB in the beginning and 231.7 MB in the end (delta: 30.4 MB). Free memory was 166.4 MB in the beginning and 181.9 MB in the end (delta: -15.5 MB). Peak memory consumption was 87.7 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 17828.98 ms. Allocated memory was 231.7 MB in the beginning and 477.1 MB in the end (delta: 245.4 MB). Free memory was 180.5 MB in the beginning and 93.2 MB in the end (delta: 87.2 MB). Peak memory consumption was 332.6 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 82]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L256]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L462]              int pumpRunning  =    0;
[L463]              int systemActive  =    1;
[L683]              int cleanupTimeShifts  =    4;
[L779]              int waterLevel  =    1;
[L780]              int methaneLevelCritical  =    0;
[L756]              int retValue_acc ;
[L757]              int tmp ;
[L761]  FCALL       select_helpers()
[L762]  FCALL       select_features()
[L763]  CALL, EXPR  valid_product()
[L69]               int retValue_acc ;
[L72]               retValue_acc = 1
[L73]               return (retValue_acc);
[L763]  RET, EXPR   valid_product()
[L763]              tmp = valid_product()
[L765]  COND TRUE   \read(tmp)
[L767]  FCALL       setup()
[L768]  CALL        runTest()
[L750]  CALL        test()
[L617]              int splverifierCounter ;
[L618]              int tmp ;
[L619]              int tmp___0 ;
[L620]              int tmp___1 ;
[L621]              int tmp___2 ;
[L624]              splverifierCounter = 0
[L626]  COND TRUE   1
[L628]  COND TRUE   splverifierCounter < 4
[L634]              tmp = __VERIFIER_nondet_int()
[L636]  COND TRUE   \read(tmp)
[L638]  CALL        waterRise()
[L797]  COND TRUE   waterLevel < 2
[L798]              waterLevel = waterLevel + 1
[L638]  RET         waterRise()
[L644]              tmp___0 = __VERIFIER_nondet_int()
[L646]  COND FALSE  !(\read(tmp___0))
[L654]              tmp___2 = __VERIFIER_nondet_int()
[L656]  COND TRUE   \read(tmp___2)
[L658]  CALL        startSystem()
[L573]              systemActive = 1
[L658]  RET         startSystem()
[L671]  CALL        timeShift()
[L470]  COND FALSE  !(\read(pumpRunning))
[L477]  COND TRUE   \read(systemActive)
[L479]  FCALL       processEnvironment()
[L485]  CALL        __utac_acc__Specification3_spec__1()
[L580]              int tmp ;
[L581]              int tmp___0 ;
[L582]              int tmp___1 ;
[L586]  CALL, EXPR  isMethaneLevelCritical()
[L818]              int retValue_acc ;
[L821]              retValue_acc = methaneLevelCritical
[L822]              return (retValue_acc);
[L586]  RET, EXPR   isMethaneLevelCritical()
[L586]              tmp = isMethaneLevelCritical()
[L588]  COND FALSE  !(\read(tmp))
[L592]  CALL, EXPR  getWaterLevel()
[L850]              int retValue_acc ;
[L853]              retValue_acc = waterLevel
[L854]              return (retValue_acc);
[L592]  RET, EXPR   getWaterLevel()
[L592]              tmp___0 = getWaterLevel()
[L594]  COND TRUE   tmp___0 == 2
[L596]  CALL, EXPR  isPumpRunning()
[L525]              int retValue_acc ;
[L528]              retValue_acc = pumpRunning
[L529]              return (retValue_acc);
[L596]  RET, EXPR   isPumpRunning()
[L596]              tmp___1 = isPumpRunning()
[L598]  COND FALSE  !(\read(tmp___1))
[L602]  CALL        __automaton_fail()
[L82]               __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 35 procedures, 582 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 6.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 400 SDtfs, 535 SDslu, 728 SDs, 0 SdLazy, 1136 SolverSat, 179 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=283occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 75 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 10.3s InterpolantComputationTime, 485 NumberOfCodeBlocks, 485 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 308 ConstructedInterpolants, 0 QuantifiedInterpolants, 134756 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...