/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_spec3_product15.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 16:50:17,266 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 16:50:17,271 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 16:50:17,312 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 16:50:17,314 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 16:50:17,322 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 16:50:17,324 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 16:50:17,327 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 16:50:17,330 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 16:50:17,333 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 16:50:17,334 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 16:50:17,335 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 16:50:17,335 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 16:50:17,338 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 16:50:17,340 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 16:50:17,342 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 16:50:17,343 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 16:50:17,344 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 16:50:17,346 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 16:50:17,354 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 16:50:17,356 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 16:50:17,357 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 16:50:17,358 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 16:50:17,359 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 16:50:17,371 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 16:50:17,371 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 16:50:17,371 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 16:50:17,378 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 16:50:17,378 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 16:50:17,381 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 16:50:17,381 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 16:50:17,382 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 16:50:17,383 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 16:50:17,387 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 16:50:17,388 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 16:50:17,388 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 16:50:17,389 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 16:50:17,390 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 16:50:17,390 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 16:50:17,391 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 16:50:17,392 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 16:50:17,393 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 16:50:17,434 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 16:50:17,434 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 16:50:17,438 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 16:50:17,438 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 16:50:17,438 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 16:50:17,438 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 16:50:17,439 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 16:50:17,439 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 16:50:17,439 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 16:50:17,439 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 16:50:17,439 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 16:50:17,439 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 16:50:17,440 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 16:50:17,440 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 16:50:17,440 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 16:50:17,441 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 16:50:17,441 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 16:50:17,441 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 16:50:17,441 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 16:50:17,442 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 16:50:17,442 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 16:50:17,442 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 16:50:17,442 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 16:50:17,442 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 16:50:17,443 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 16:50:17,443 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 16:50:17,443 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 16:50:17,443 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 16:50:17,443 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 16:50:17,444 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 16:50:17,911 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 16:50:17,930 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 16:50:17,934 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 16:50:17,936 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 16:50:17,936 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 16:50:17,938 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product15.cil.c
[2020-09-24 16:50:18,007 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1baf61aaa/6590f85c20e84c33a2adf80efffd5835/FLAG4d71aa927
[2020-09-24 16:50:18,621 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 16:50:18,622 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product15.cil.c
[2020-09-24 16:50:18,636 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1baf61aaa/6590f85c20e84c33a2adf80efffd5835/FLAG4d71aa927
[2020-09-24 16:50:18,838 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1baf61aaa/6590f85c20e84c33a2adf80efffd5835
[2020-09-24 16:50:18,851 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 16:50:18,857 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 16:50:18,858 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 16:50:18,859 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 16:50:18,864 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 16:50:18,865 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:50:18" (1/1) ...
[2020-09-24 16:50:18,870 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e6cae7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:18, skipping insertion in model container
[2020-09-24 16:50:18,870 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:50:18" (1/1) ...
[2020-09-24 16:50:18,880 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 16:50:18,953 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 16:50:19,389 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:50:19,491 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 16:50:19,568 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:50:19,603 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 16:50:19,603 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:19 WrapperNode
[2020-09-24 16:50:19,604 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 16:50:19,604 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 16:50:19,605 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 16:50:19,605 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 16:50:19,622 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:19" (1/1) ...
[2020-09-24 16:50:19,623 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:19" (1/1) ...
[2020-09-24 16:50:19,643 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:19" (1/1) ...
[2020-09-24 16:50:19,643 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:19" (1/1) ...
[2020-09-24 16:50:19,677 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:19" (1/1) ...
[2020-09-24 16:50:19,688 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:19" (1/1) ...
[2020-09-24 16:50:19,693 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:19" (1/1) ...
[2020-09-24 16:50:19,701 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 16:50:19,701 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 16:50:19,702 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 16:50:19,702 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 16:50:19,703 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:19" (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 16:50:19,796 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 16:50:19,796 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 16:50:19,797 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:50:19,797 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 16:50:19,797 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery
[2020-09-24 16:50:19,798 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 16:50:19,798 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base
[2020-09-24 16:50:19,798 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 16:50:19,798 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 16:50:19,799 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 16:50:19,799 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 16:50:19,800 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 16:50:19,800 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-24 16:50:19,800 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 16:50:19,800 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 16:50:19,801 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 16:50:19,801 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:50:19,801 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 16:50:19,802 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 16:50:19,802 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 16:50:19,803 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 16:50:19,803 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 16:50:19,803 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 16:50:19,803 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 16:50:19,805 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 16:50:19,806 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 16:50:19,806 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 16:50:19,806 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 16:50:19,806 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 16:50:19,806 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 16:50:19,806 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 16:50:19,806 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-24 16:50:19,807 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 16:50:19,807 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 16:50:19,807 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 16:50:19,807 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 16:50:19,807 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 16:50:19,807 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 16:50:19,807 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 16:50:19,808 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 16:50:19,808 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 16:50:19,808 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 16:50:19,809 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 16:50:19,809 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 16:50:19,810 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 16:50:19,810 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 16:50:19,810 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 16:50:19,810 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 16:50:19,810 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-24 16:50:19,810 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-24 16:50:19,811 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 16:50:19,811 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery
[2020-09-24 16:50:19,811 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 16:50:19,811 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base
[2020-09-24 16:50:19,811 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 16:50:19,812 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 16:50:19,812 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 16:50:19,812 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 16:50:19,812 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 16:50:19,813 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 16:50:19,813 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 16:50:19,813 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 16:50:19,813 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 16:50:19,813 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 16:50:19,813 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 16:50:19,813 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 16:50:19,814 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 16:50:19,814 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 16:50:19,814 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 16:50:19,814 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:50:19,814 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:50:19,815 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 16:50:19,816 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 16:50:19,816 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 16:50:19,817 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 16:50:19,817 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 16:50:19,817 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 16:50:19,817 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 16:50:19,817 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 16:50:19,818 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 16:50:19,818 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 16:50:19,818 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 16:50:19,818 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 16:50:19,818 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 16:50:19,818 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 16:50:19,818 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 16:50:19,819 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 16:50:19,819 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 16:50:20,921 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 16:50:20,921 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 16:50:20,928 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:50:20 BoogieIcfgContainer
[2020-09-24 16:50:20,928 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 16:50:20,931 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 16:50:20,931 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 16:50:20,936 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 16:50:20,936 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:50:18" (1/3) ...
[2020-09-24 16:50:20,937 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@596fb536 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:50:20, skipping insertion in model container
[2020-09-24 16:50:20,937 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:19" (2/3) ...
[2020-09-24 16:50:20,938 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@596fb536 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:50:20, skipping insertion in model container
[2020-09-24 16:50:20,938 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:50:20" (3/3) ...
[2020-09-24 16:50:20,940 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product15.cil.c
[2020-09-24 16:50:20,952 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 16:50:20,965 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 16:50:20,988 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 16:50:21,015 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 16:50:21,015 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 16:50:21,015 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 16:50:21,016 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 16:50:21,016 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 16:50:21,016 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 16:50:21,016 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 16:50:21,016 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 16:50:21,041 INFO  L276                IsEmpty]: Start isEmpty. Operand 291 states.
[2020-09-24 16:50:21,057 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-24 16:50:21,058 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:50:21,059 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 16:50:21,059 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:50:21,065 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:50:21,066 INFO  L82        PathProgramCache]: Analyzing trace with hash -572002072, now seen corresponding path program 1 times
[2020-09-24 16:50:21,076 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:50:21,076 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1682386249]
[2020-09-24 16:50:21,077 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:50:21,393 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:21,626 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:21,811 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:23,204 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:27,117 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:27,118 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-24 16:50:27,118 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 16:50:27,119 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5708
[2020-09-24 16:50:27,120 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:27,121 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:50:27,121 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 129
[2020-09-24 16:50:27,122 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:50:27,122 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-24 16:50:27,561 WARN  L193               SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 16:50:27,564 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:50:27,581 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:27,591 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:27,690 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:27,691 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 16:50:27,691 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:27,691 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 108
[2020-09-24 16:50:27,692 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:27,692 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:50:27,692 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:27,692 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:50:27,693 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:27,750 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 16:50:27,752 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:27,753 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:27,755 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:27,755 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:50:27,755 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:27,756 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:50:27,756 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:27,756 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:50:27,756 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:27,757 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:50:27,757 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:27,786 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 16:50:27,787 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:27,788 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:27,790 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:27,791 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:50:27,791 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:27,791 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:50:27,791 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:27,792 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:50:27,792 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:27,792 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:50:27,792 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:27,793 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 16:50:27,794 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:27,796 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:27,800 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:27,800 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:50:27,801 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:27,801 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 16:50:27,801 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:27,801 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:50:27,802 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:27,802 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:50:27,802 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:27,804 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 16:50:27,804 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:27,806 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:27,807 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:27,808 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:50:27,808 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:27,808 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:50:27,808 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:27,809 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:50:27,809 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:27,809 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:50:27,809 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:27,810 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-24 16:50:27,811 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:27,813 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:27,815 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:27,815 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:50:27,815 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:27,816 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:50:27,816 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:27,816 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:50:27,816 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:50:27,817 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:50:27,817 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:27,818 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-24 16:50:27,819 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:27,821 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:27,823 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:27,823 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:50:27,824 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:27,824 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:50:27,824 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:27,824 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:50:27,825 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:50:27,825 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:50:27,825 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:27,827 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-24 16:50:27,828 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:27,829 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:27,831 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:27,831 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:50:27,831 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:27,832 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:50:27,832 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:27,832 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:50:27,832 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:50:27,833 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:50:27,833 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:27,868 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 16:50:27,870 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1682386249]
[2020-09-24 16:50:27,873 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:50:27,873 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-24 16:50:27,874 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500240905]
[2020-09-24 16:50:27,882 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-24 16:50:27,883 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:50:27,908 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-24 16:50:27,909 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 16:50:27,913 INFO  L87              Difference]: Start difference. First operand 291 states. Second operand 3 states.
[2020-09-24 16:50:29,283 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:50:29,283 INFO  L93              Difference]: Finished difference Result 427 states and 514 transitions.
[2020-09-24 16:50:29,284 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-09-24 16:50:29,285 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 153
[2020-09-24 16:50:29,289 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:50:29,321 INFO  L225             Difference]: With dead ends: 427
[2020-09-24 16:50:29,321 INFO  L226             Difference]: Without dead ends: 271
[2020-09-24 16:50:29,329 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 16:50:29,354 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 271 states.
[2020-09-24 16:50:29,485 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 230.
[2020-09-24 16:50:29,486 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 230 states.
[2020-09-24 16:50:29,492 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 250 transitions.
[2020-09-24 16:50:29,495 INFO  L78                 Accepts]: Start accepts. Automaton has 230 states and 250 transitions. Word has length 153
[2020-09-24 16:50:29,498 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:50:29,499 INFO  L479      AbstractCegarLoop]: Abstraction has 230 states and 250 transitions.
[2020-09-24 16:50:29,499 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-24 16:50:29,506 INFO  L276                IsEmpty]: Start isEmpty. Operand 230 states and 250 transitions.
[2020-09-24 16:50:29,520 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 155
[2020-09-24 16:50:29,521 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:50:29,522 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]
[2020-09-24 16:50:29,522 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 16:50:29,522 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:50:29,522 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:50:29,523 INFO  L82        PathProgramCache]: Analyzing trace with hash 1995098950, now seen corresponding path program 1 times
[2020-09-24 16:50:29,523 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:50:29,523 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1526063102]
[2020-09-24 16:50:29,523 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:50:29,582 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:29,650 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:29,760 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:31,445 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:37,065 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:37,065 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 187
[2020-09-24 16:50:37,065 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 16:50:37,066 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7479
[2020-09-24 16:50:37,066 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:37,066 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-24 16:50:37,066 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 80
[2020-09-24 16:50:37,067 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 91
[2020-09-24 16:50:37,067 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:37,491 WARN  L193               SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 16:50:37,492 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:50:37,521 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:37,555 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:37,749 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:37,750 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 16:50:37,750 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:37,750 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 227
[2020-09-24 16:50:37,751 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:37,751 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:50:37,751 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:37,751 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 76
[2020-09-24 16:50:37,751 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:37,788 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 16:50:37,789 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:37,791 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:37,793 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:37,793 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:50:37,794 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:37,794 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:50:37,794 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:37,794 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:50:37,795 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:37,795 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:50:37,795 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:37,797 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 16:50:37,798 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:37,799 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:37,801 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:37,802 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:50:37,802 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:37,802 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:50:37,802 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:37,802 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:50:37,803 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:37,803 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:50:37,803 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:37,804 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 16:50:37,805 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:37,807 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:37,813 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:37,814 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:50:37,814 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:37,814 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 16:50:37,814 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:37,814 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:50:37,815 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:37,815 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:50:37,815 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:37,817 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 16:50:37,818 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:37,819 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:37,821 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:37,822 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:50:37,822 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:37,822 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:50:37,822 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:37,823 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:50:37,823 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:37,823 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:50:37,823 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:37,825 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122
[2020-09-24 16:50:37,826 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:37,827 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:37,830 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:37,830 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:50:37,830 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:37,831 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:50:37,831 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:37,831 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:50:37,831 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:37,831 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:50:37,832 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:37,833 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132
[2020-09-24 16:50:37,834 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:37,836 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:37,841 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:37,842 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:50:37,842 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:37,842 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 16:50:37,842 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:37,843 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 16:50:37,843 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:37,843 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:50:37,843 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:37,865 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142
[2020-09-24 16:50:37,866 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:37,867 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:37,869 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:37,869 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:50:37,869 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:37,869 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:50:37,870 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:37,870 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:50:37,870 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:50:37,870 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:50:37,870 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:37,900 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 16:50:37,900 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1526063102]
[2020-09-24 16:50:37,901 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:50:37,901 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-24 16:50:37,901 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858366257]
[2020-09-24 16:50:37,903 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-24 16:50:37,903 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:50:37,904 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-24 16:50:37,904 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-24 16:50:37,904 INFO  L87              Difference]: Start difference. First operand 230 states and 250 transitions. Second operand 8 states.
[2020-09-24 16:50:38,376 WARN  L193               SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:50:39,860 WARN  L193               SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:50:40,196 WARN  L193               SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:50:40,568 WARN  L193               SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:50:40,954 WARN  L193               SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:50:41,237 WARN  L193               SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:50:41,529 WARN  L193               SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:50:41,825 WARN  L193               SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:50:42,548 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:50:42,548 INFO  L93              Difference]: Finished difference Result 508 states and 609 transitions.
[2020-09-24 16:50:42,551 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-24 16:50:42,552 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 154
[2020-09-24 16:50:42,552 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:50:42,557 INFO  L225             Difference]: With dead ends: 508
[2020-09-24 16:50:42,557 INFO  L226             Difference]: Without dead ends: 388
[2020-09-24 16:50:42,560 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2020-09-24 16:50:42,561 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 388 states.
[2020-09-24 16:50:42,658 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 342.
[2020-09-24 16:50:42,658 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 342 states.
[2020-09-24 16:50:42,661 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 390 transitions.
[2020-09-24 16:50:42,662 INFO  L78                 Accepts]: Start accepts. Automaton has 342 states and 390 transitions. Word has length 154
[2020-09-24 16:50:42,665 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:50:42,665 INFO  L479      AbstractCegarLoop]: Abstraction has 342 states and 390 transitions.
[2020-09-24 16:50:42,665 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-24 16:50:42,665 INFO  L276                IsEmpty]: Start isEmpty. Operand 342 states and 390 transitions.
[2020-09-24 16:50:42,669 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 160
[2020-09-24 16:50:42,670 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:50:42,670 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]
[2020-09-24 16:50:42,670 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 16:50:42,670 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:50:42,671 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:50:42,671 INFO  L82        PathProgramCache]: Analyzing trace with hash -1075860932, now seen corresponding path program 1 times
[2020-09-24 16:50:42,671 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:50:42,672 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1942056893]
[2020-09-24 16:50:42,672 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:50:42,725 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:42,776 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:42,860 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:42,986 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:48,082 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:48,765 FATAL L256   erpolLogProxyWrapper]: Now shrinking...