/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 log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product12.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 16:53:19,249 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 16:53:19,253 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 16:53:19,279 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 16:53:19,279 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 16:53:19,280 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 16:53:19,282 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 16:53:19,284 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 16:53:19,286 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 16:53:19,287 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 16:53:19,288 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 16:53:19,289 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 16:53:19,290 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 16:53:19,291 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 16:53:19,292 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 16:53:19,293 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 16:53:19,294 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 16:53:19,295 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 16:53:19,297 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 16:53:19,299 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 16:53:19,301 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 16:53:19,302 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 16:53:19,303 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 16:53:19,305 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 16:53:19,307 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 16:53:19,307 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 16:53:19,308 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 16:53:19,313 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 16:53:19,314 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 16:53:19,315 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 16:53:19,315 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 16:53:19,318 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 16:53:19,319 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 16:53:19,320 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 16:53:19,321 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 16:53:19,322 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 16:53:19,323 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 16:53:19,323 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 16:53:19,323 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 16:53:19,324 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 16:53:19,325 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 16:53:19,326 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-24 16:53:19,352 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 16:53:19,353 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 16:53:19,354 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 16:53:19,354 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 16:53:19,355 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 16:53:19,355 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 16:53:19,355 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 16:53:19,355 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 16:53:19,355 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 16:53:19,356 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 16:53:19,356 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 16:53:19,356 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 16:53:19,356 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 16:53:19,356 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 16:53:19,357 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 16:53:19,357 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 16:53:19,357 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 16:53:19,357 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 16:53:19,357 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 16:53:19,358 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 16:53:19,358 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 16:53:19,358 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 16:53:19,358 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 16:53:19,358 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 16:53:19,359 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 16:53:19,359 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 16:53:19,359 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 16:53:19,359 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 16:53:19,359 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 16:53:19,360 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;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;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;log-additional-information=true;
[2020-09-24 16:53:19,826 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 16:53:19,853 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 16:53:19,857 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 16:53:19,859 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 16:53:19,860 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 16:53:19,862 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product12.cil.c
[2020-09-24 16:53:19,955 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d224fed03/c546453a517a43568385dce1e82cd1cc/FLAG83a673fa1
[2020-09-24 16:53:20,507 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 16:53:20,509 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product12.cil.c
[2020-09-24 16:53:20,531 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d224fed03/c546453a517a43568385dce1e82cd1cc/FLAG83a673fa1
[2020-09-24 16:53:20,787 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d224fed03/c546453a517a43568385dce1e82cd1cc
[2020-09-24 16:53:20,802 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 16:53:20,808 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 16:53:20,810 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 16:53:20,810 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 16:53:20,814 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 16:53:20,815 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:53:20" (1/1) ...
[2020-09-24 16:53:20,820 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:53:20, skipping insertion in model container
[2020-09-24 16:53:20,820 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:53:20" (1/1) ...
[2020-09-24 16:53:20,831 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 16:53:20,904 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 16:53:21,373 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:53:21,386 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 16:53:21,555 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:53:21,620 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 16:53:21,621 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:53:21 WrapperNode
[2020-09-24 16:53:21,621 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 16:53:21,622 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 16:53:21,622 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 16:53:21,622 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 16:53:21,636 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:53:21" (1/1) ...
[2020-09-24 16:53:21,637 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:53:21" (1/1) ...
[2020-09-24 16:53:21,658 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:53:21" (1/1) ...
[2020-09-24 16:53:21,658 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:53:21" (1/1) ...
[2020-09-24 16:53:21,717 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:53:21" (1/1) ...
[2020-09-24 16:53:21,728 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:53:21" (1/1) ...
[2020-09-24 16:53:21,733 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:53:21" (1/1) ...
[2020-09-24 16:53:21,740 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 16:53:21,741 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 16:53:21,741 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 16:53:21,742 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 16:53:21,743 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:53:21" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 16:53:21,838 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 16:53:21,839 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 16:53:21,839 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:53:21,840 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 16:53:21,840 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 16:53:21,841 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 16:53:21,841 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 16:53:21,841 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 16:53:21,841 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 16:53:21,842 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1
[2020-09-24 16:53:21,843 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 16:53:21,843 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 16:53:21,843 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 16:53:21,843 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base
[2020-09-24 16:53:21,843 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 16:53:21,844 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 16:53:21,844 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 16:53:21,845 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 16:53:21,845 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 16:53:21,845 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-24 16:53:21,846 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-24 16:53:21,846 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 16:53:21,846 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 16:53:21,847 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 16:53:21,848 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 16:53:21,849 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 16:53:21,850 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 16:53:21,850 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 16:53:21,850 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 16:53:21,850 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 16:53:21,851 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 16:53:21,851 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 16:53:21,851 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:53:21,851 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 16:53:21,852 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 16:53:21,852 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 16:53:21,852 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 16:53:21,852 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 16:53:21,852 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 16:53:21,852 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 16:53:21,853 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 16:53:21,853 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 16:53:21,853 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 16:53:21,853 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 16:53:21,853 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 16:53:21,853 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 16:53:21,854 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 16:53:21,854 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 16:53:21,854 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 16:53:21,854 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1
[2020-09-24 16:53:21,855 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-24 16:53:21,855 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-24 16:53:21,855 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 16:53:21,855 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 16:53:21,855 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 16:53:21,856 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 16:53:21,856 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 16:53:21,856 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 16:53:21,856 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 16:53:21,857 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base
[2020-09-24 16:53:21,857 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 16:53:21,857 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 16:53:21,857 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 16:53:21,857 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 16:53:21,857 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 16:53:21,857 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 16:53:21,858 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 16:53:21,858 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 16:53:21,858 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 16:53:21,858 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 16:53:21,858 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 16:53:21,859 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 16:53:21,860 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 16:53:21,860 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 16:53:21,861 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 16:53:21,861 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 16:53:21,861 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 16:53:21,862 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 16:53:21,862 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 16:53:21,862 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:53:21,862 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:53:21,862 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 16:53:21,862 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 16:53:21,863 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 16:53:21,863 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 16:53:21,864 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 16:53:21,864 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 16:53:21,864 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 16:53:23,000 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 16:53:23,000 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 16:53:23,007 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:53:23 BoogieIcfgContainer
[2020-09-24 16:53:23,008 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 16:53:23,009 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 16:53:23,009 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 16:53:23,013 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 16:53:23,013 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:53:20" (1/3) ...
[2020-09-24 16:53:23,014 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fb89f7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:53:23, skipping insertion in model container
[2020-09-24 16:53:23,015 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:53:21" (2/3) ...
[2020-09-24 16:53:23,015 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fb89f7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:53:23, skipping insertion in model container
[2020-09-24 16:53:23,015 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:53:23" (3/3) ...
[2020-09-24 16:53:23,017 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec4_product12.cil.c
[2020-09-24 16:53:23,030 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 16:53:23,041 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 16:53:23,064 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 16:53:23,094 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 16:53:23,095 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 16:53:23,095 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 16:53:23,095 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 16:53:23,095 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 16:53:23,095 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 16:53:23,096 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 16:53:23,096 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 16:53:23,122 INFO  L276                IsEmpty]: Start isEmpty. Operand 254 states.
[2020-09-24 16:53:23,139 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 143
[2020-09-24 16:53:23,139 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:53:23,141 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]
[2020-09-24 16:53:23,141 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:53:23,149 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:53:23,150 INFO  L82        PathProgramCache]: Analyzing trace with hash -2088728363, now seen corresponding path program 1 times
[2020-09-24 16:53:23,162 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:53:23,162 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1761299804]
[2020-09-24 16:53:23,163 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:53:23,518 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:53:23,702 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:23,952 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:25,299 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:26,335 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:28,187 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:40,836 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:53:40,837 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 173
[2020-09-24 16:53:40,840 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-24 16:53:40,840 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 17306
[2020-09-24 16:53:40,842 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:53:40,842 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-24 16:53:40,842 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 80
[2020-09-24 16:53:40,842 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 60
[2020-09-24 16:53:40,842 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:53:41,271 WARN  L193               SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 16:53:41,274 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:53:41,313 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:53:41,352 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:41,548 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:53:41,549 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 16:53:41,550 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:53:41,550 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 233
[2020-09-24 16:53:41,550 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:53:41,550 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:53:41,551 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:53:41,551 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 76
[2020-09-24 16:53:41,551 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:53:41,617 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 16:53:41,619 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:53:41,620 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:41,623 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:53:41,624 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:53:41,624 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:53:41,624 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:53:41,624 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:53:41,624 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:53:41,625 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:53:41,625 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:53:41,625 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:53:41,627 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 16:53:41,628 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:53:41,630 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:41,633 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:53:41,633 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:53:41,633 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:53:41,634 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:53:41,634 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:53:41,634 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:53:41,634 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:53:41,635 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:53:41,635 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:53:41,636 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 16:53:41,638 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:53:41,640 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:41,647 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:53:41,647 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:53:41,648 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:53:41,648 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 16:53:41,648 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:53:41,648 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:53:41,649 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:53:41,649 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:53:41,649 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:53:41,651 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 16:53:41,652 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:53:41,654 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:41,657 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:53:41,657 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:53:41,657 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:53:41,657 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:53:41,658 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:53:41,658 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:53:41,658 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:53:41,658 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:53:41,658 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:53:41,660 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120
[2020-09-24 16:53:41,661 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:53:41,663 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:41,664 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:53:41,665 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:53:41,665 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:53:41,665 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:53:41,665 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:53:41,666 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:53:41,666 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:53:41,666 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:53:41,666 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:53:41,668 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130
[2020-09-24 16:53:41,669 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:53:41,670 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:41,672 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:53:41,672 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:53:41,672 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:53:41,673 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:53:41,673 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:53:41,673 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:53:41,673 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:53:41,673 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:53:41,674 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:53:41,703 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 16:53:41,704 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1761299804]
[2020-09-24 16:53:41,706 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:53:41,706 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-24 16:53:41,707 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592287737]
[2020-09-24 16:53:41,714 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-24 16:53:41,715 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:53:41,732 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-24 16:53:41,733 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-24 16:53:41,736 INFO  L87              Difference]: Start difference. First operand 254 states. Second operand 4 states.
[2020-09-24 16:53:42,463 WARN  L193               SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:53:44,025 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:53:44,025 INFO  L93              Difference]: Finished difference Result 493 states and 606 transitions.
[2020-09-24 16:53:44,027 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-09-24 16:53:44,029 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 142
[2020-09-24 16:53:44,030 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:53:44,061 INFO  L225             Difference]: With dead ends: 493
[2020-09-24 16:53:44,061 INFO  L226             Difference]: Without dead ends: 350
[2020-09-24 16:53:44,069 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-09-24 16:53:44,098 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 350 states.
[2020-09-24 16:53:44,331 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 280.
[2020-09-24 16:53:44,333 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 280 states.
[2020-09-24 16:53:44,335 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 307 transitions.
[2020-09-24 16:53:44,338 INFO  L78                 Accepts]: Start accepts. Automaton has 280 states and 307 transitions. Word has length 142
[2020-09-24 16:53:44,339 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:53:44,340 INFO  L479      AbstractCegarLoop]: Abstraction has 280 states and 307 transitions.
[2020-09-24 16:53:44,340 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-24 16:53:44,340 INFO  L276                IsEmpty]: Start isEmpty. Operand 280 states and 307 transitions.
[2020-09-24 16:53:44,345 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 147
[2020-09-24 16:53:44,345 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:53:44,346 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]
[2020-09-24 16:53:44,346 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 16:53:44,347 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:53:44,347 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:53:44,348 INFO  L82        PathProgramCache]: Analyzing trace with hash -1780618402, now seen corresponding path program 1 times
[2020-09-24 16:53:44,348 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:53:44,348 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2139232608]
[2020-09-24 16:53:44,348 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:53:44,402 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:53:44,455 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:44,646 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:45,498 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:45,801 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:59,112 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:53:59,113 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 179
[2020-09-24 16:53:59,113 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 4
[2020-09-24 16:53:59,113 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 14707
[2020-09-24 16:53:59,113 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:53:59,114 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-24 16:53:59,114 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 77
[2020-09-24 16:53:59,114 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 86
[2020-09-24 16:53:59,115 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:53:59,431 WARN  L193               SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 16:53:59,433 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:53:59,461 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:53:59,493 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:59,644 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:53:59,644 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 16:53:59,644 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:53:59,644 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 181
[2020-09-24 16:53:59,644 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:53:59,645 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:53:59,645 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:53:59,645 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 73
[2020-09-24 16:53:59,645 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:53:59,681 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 16:53:59,682 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:53:59,684 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:59,686 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:53:59,686 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:53:59,687 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:53:59,687 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:53:59,687 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:53:59,687 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:53:59,687 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:53:59,688 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:53:59,688 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:53:59,690 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 16:53:59,690 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:53:59,692 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:59,694 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:53:59,694 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:53:59,695 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:53:59,695 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:53:59,695 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:53:59,695 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:53:59,695 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:53:59,696 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:53:59,696 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:53:59,697 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 16:53:59,698 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:53:59,700 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:59,706 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:53:59,706 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:53:59,707 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:53:59,707 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 16:53:59,707 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:53:59,707 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:53:59,707 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:53:59,708 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:53:59,708 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:53:59,710 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 16:53:59,710 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:53:59,712 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:59,714 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:53:59,714 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:53:59,714 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:53:59,714 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:53:59,715 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:53:59,715 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:53:59,715 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:53:59,715 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:53:59,716 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:53:59,717 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118
[2020-09-24 16:53:59,718 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:53:59,719 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:59,721 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:53:59,721 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:53:59,721 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:53:59,722 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:53:59,722 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:53:59,722 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:53:59,722 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:53:59,722 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:53:59,723 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:53:59,724 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124
[2020-09-24 16:53:59,725 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:53:59,727 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:59,732 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:53:59,732 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:53:59,733 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:53:59,733 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 16:53:59,733 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:53:59,733 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 16:53:59,734 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:53:59,734 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:53:59,734 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:53:59,769 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134
[2020-09-24 16:53:59,771 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:53:59,773 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:59,774 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:53:59,774 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:53:59,774 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:53:59,775 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:53:59,775 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:53:59,775 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:53:59,775 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:53:59,775 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:53:59,776 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:53:59,804 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 16:53:59,804 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2139232608]
[2020-09-24 16:53:59,805 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:53:59,805 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-24 16:53:59,805 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668697490]
[2020-09-24 16:53:59,807 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-24 16:53:59,807 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:53:59,808 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-24 16:53:59,808 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-24 16:53:59,808 INFO  L87              Difference]: Start difference. First operand 280 states and 307 transitions. Second operand 8 states.
[2020-09-24 16:54:00,342 WARN  L193               SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:54:01,374 WARN  L193               SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:54:01,687 WARN  L193               SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:54:02,078 WARN  L193               SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:54:02,467 WARN  L193               SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:54:02,764 WARN  L193               SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:54:03,098 WARN  L193               SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:54:03,413 WARN  L193               SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:54:04,302 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:54:04,302 INFO  L93              Difference]: Finished difference Result 645 states and 773 transitions.
[2020-09-24 16:54:04,303 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-24 16:54:04,303 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 146
[2020-09-24 16:54:04,304 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:54:04,309 INFO  L225             Difference]: With dead ends: 645
[2020-09-24 16:54:04,309 INFO  L226             Difference]: Without dead ends: 475
[2020-09-24 16:54:04,312 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2020-09-24 16:54:04,313 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 475 states.
[2020-09-24 16:54:04,392 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 433.
[2020-09-24 16:54:04,392 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 433 states.
[2020-09-24 16:54:04,395 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 499 transitions.
[2020-09-24 16:54:04,396 INFO  L78                 Accepts]: Start accepts. Automaton has 433 states and 499 transitions. Word has length 146
[2020-09-24 16:54:04,397 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:54:04,397 INFO  L479      AbstractCegarLoop]: Abstraction has 433 states and 499 transitions.
[2020-09-24 16:54:04,397 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-24 16:54:04,397 INFO  L276                IsEmpty]: Start isEmpty. Operand 433 states and 499 transitions.
[2020-09-24 16:54:04,401 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 152
[2020-09-24 16:54:04,401 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:54:04,401 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]
[2020-09-24 16:54:04,401 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 16:54:04,402 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:54:04,402 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:54:04,402 INFO  L82        PathProgramCache]: Analyzing trace with hash -58594819, now seen corresponding path program 1 times
[2020-09-24 16:54:04,402 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:54:04,403 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [742761215]
[2020-09-24 16:54:04,403 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:54:04,442 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:54:04,484 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:04,561 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:05,780 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:07,572 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:54:07,572 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-24 16:54:07,573 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 16:54:07,573 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3127
[2020-09-24 16:54:07,573 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:54:07,573 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:54:07,573 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 128
[2020-09-24 16:54:07,574 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 3
[2020-09-24 16:54:07,574 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:54:07,841 WARN  L193               SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 16:54:07,842 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:54:07,850 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:54:07,860 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:07,943 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:54:07,943 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 16:54:07,943 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:54:07,944 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 91
[2020-09-24 16:54:07,944 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:54:07,944 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:54:07,944 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:54:07,944 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:54:07,945 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:54:07,972 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 16:54:07,973 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:54:07,974 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:07,975 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:54:07,975 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:54:07,975 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:54:07,976 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:54:07,976 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:54:07,976 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:54:07,976 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:54:07,977 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:54:07,977 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:54:07,978 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 16:54:07,978 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:54:07,979 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:07,980 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:54:07,981 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:54:07,981 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:54:07,981 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 16:54:07,981 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:54:07,982 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:54:07,982 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:54:07,982 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:54:07,982 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:54:07,983 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 16:54:07,984 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:54:07,985 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:07,988 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:54:07,988 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:54:07,988 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:54:07,989 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:54:07,989 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:54:07,989 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:54:07,989 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:54:07,989 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:54:07,990 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:54:07,991 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 16:54:07,992 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:54:07,993 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:07,994 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:54:07,994 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:54:07,994 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:54:07,994 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 16:54:07,995 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:54:07,995 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:54:07,995 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:54:07,995 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:54:07,995 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:54:08,004 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117
[2020-09-24 16:54:08,005 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:54:08,006 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:08,009 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:54:08,010 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 16:54:08,010 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:54:08,010 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:54:08,010 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:54:08,010 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:54:08,011 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 7
[2020-09-24 16:54:08,011 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:54:08,011 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:54:08,012 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123
[2020-09-24 16:54:08,013 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:54:08,014 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:08,015 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:54:08,016 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:54:08,016 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:54:08,016 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:54:08,016 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:54:08,016 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:54:08,017 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-09-24 16:54:08,017 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:54:08,017 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:54:08,018 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129
[2020-09-24 16:54:08,019 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:54:08,020 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:08,021 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:54:08,022 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:54:08,022 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:54:08,022 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:54:08,022 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:54:08,022 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:54:08,023 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:54:08,023 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:54:08,023 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:54:08,024 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139
[2020-09-24 16:54:08,025 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:54:08,026 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:08,027 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:54:08,027 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:54:08,028 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:54:08,028 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:54:08,028 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:54:08,028 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:54:08,028 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:54:08,029 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:54:08,029 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:54:08,054 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 16:54:08,055 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [742761215]
[2020-09-24 16:54:08,055 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:54:08,056 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-24 16:54:08,056 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720827683]
[2020-09-24 16:54:08,057 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-24 16:54:08,057 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:54:08,058 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-24 16:54:08,058 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-24 16:54:08,058 INFO  L87              Difference]: Start difference. First operand 433 states and 499 transitions. Second operand 5 states.
[2020-09-24 16:54:08,823 WARN  L193               SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 16:54:09,527 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:54:09,527 INFO  L93              Difference]: Finished difference Result 597 states and 686 transitions.
[2020-09-24 16:54:09,528 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-09-24 16:54:09,528 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 151
[2020-09-24 16:54:09,529 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:54:09,532 INFO  L225             Difference]: With dead ends: 597
[2020-09-24 16:54:09,532 INFO  L226             Difference]: Without dead ends: 418
[2020-09-24 16:54:09,535 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-09-24 16:54:09,536 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 418 states.
[2020-09-24 16:54:09,603 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 393.
[2020-09-24 16:54:09,603 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 393 states.
[2020-09-24 16:54:09,609 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 439 transitions.
[2020-09-24 16:54:09,610 INFO  L78                 Accepts]: Start accepts. Automaton has 393 states and 439 transitions. Word has length 151
[2020-09-24 16:54:09,611 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:54:09,611 INFO  L479      AbstractCegarLoop]: Abstraction has 393 states and 439 transitions.
[2020-09-24 16:54:09,612 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-24 16:54:09,612 INFO  L276                IsEmpty]: Start isEmpty. Operand 393 states and 439 transitions.
[2020-09-24 16:54:09,615 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 165
[2020-09-24 16:54:09,615 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:54:09,615 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]
[2020-09-24 16:54:09,615 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 16:54:09,616 INFO  L427      AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:54:09,616 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:54:09,616 INFO  L82        PathProgramCache]: Analyzing trace with hash -137659416, now seen corresponding path program 1 times
[2020-09-24 16:54:09,616 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:54:09,617 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1819794341]
[2020-09-24 16:54:09,617 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:54:09,658 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:54:09,702 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:10,215 FATAL L256   erpolLogProxyWrapper]: Now shrinking...