/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --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_spec2_product15.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 07:28:48,349 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 07:28:48,353 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 07:28:48,397 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 07:28:48,397 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 07:28:48,405 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 07:28:48,407 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 07:28:48,411 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 07:28:48,413 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 07:28:48,416 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 07:28:48,417 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 07:28:48,419 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 07:28:48,419 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 07:28:48,422 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 07:28:48,424 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 07:28:48,426 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 07:28:48,428 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 07:28:48,429 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 07:28:48,431 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 07:28:48,439 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 07:28:48,442 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 07:28:48,443 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 07:28:48,444 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 07:28:48,445 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 07:28:48,456 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 07:28:48,456 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 07:28:48,456 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 07:28:48,457 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 07:28:48,458 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 07:28:48,459 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 07:28:48,459 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 07:28:48,462 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 07:28:48,463 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 07:28:48,464 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 07:28:48,466 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 07:28:48,466 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 07:28:48,467 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 07:28:48,467 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 07:28:48,467 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 07:28:48,468 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 07:28:48,470 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 07:28:48,471 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-25 07:28:48,511 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 07:28:48,512 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 07:28:48,513 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 07:28:48,513 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 07:28:48,513 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 07:28:48,514 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 07:28:48,514 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 07:28:48,514 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 07:28:48,514 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 07:28:48,514 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 07:28:48,515 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 07:28:48,515 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 07:28:48,515 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 07:28:48,515 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 07:28:48,515 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 07:28:48,516 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 07:28:48,516 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 07:28:48,516 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 07:28:48,516 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 07:28:48,517 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 07:28:48,517 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 07:28:48,517 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 07:28:48,517 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 07:28:48,517 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 07:28:48,518 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 07:28:48,518 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 07:28:48,518 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 07:28:48,518 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 07:28:48,519 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 07:28:48,519 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true;
[2020-09-25 07:28:48,959 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 07:28:48,977 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 07:28:48,981 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 07:28:48,983 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 07:28:48,983 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 07:28:48,985 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product15.cil.c
[2020-09-25 07:28:49,065 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fabbb6959/56fe3f5cbdfa4f468f0ddc13f67f5035/FLAG8977a9502
[2020-09-25 07:28:49,680 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 07:28:49,681 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product15.cil.c
[2020-09-25 07:28:49,697 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fabbb6959/56fe3f5cbdfa4f468f0ddc13f67f5035/FLAG8977a9502
[2020-09-25 07:28:49,946 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fabbb6959/56fe3f5cbdfa4f468f0ddc13f67f5035
[2020-09-25 07:28:49,958 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 07:28:49,965 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 07:28:49,966 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 07:28:49,966 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 07:28:49,971 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 07:28:49,972 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:28:49" (1/1) ...
[2020-09-25 07:28:49,976 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a11bedd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:28:49, skipping insertion in model container
[2020-09-25 07:28:49,977 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:28:49" (1/1) ...
[2020-09-25 07:28:49,986 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 07:28:50,044 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 07:28:50,593 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 07:28:50,608 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 07:28:50,691 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 07:28:50,745 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 07:28:50,747 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:28:50 WrapperNode
[2020-09-25 07:28:50,748 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 07:28:50,748 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 07:28:50,749 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 07:28:50,749 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 07:28:50,764 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:28:50" (1/1) ...
[2020-09-25 07:28:50,764 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:28:50" (1/1) ...
[2020-09-25 07:28:50,787 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:28:50" (1/1) ...
[2020-09-25 07:28:50,788 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:28:50" (1/1) ...
[2020-09-25 07:28:50,822 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:28:50" (1/1) ...
[2020-09-25 07:28:50,834 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:28:50" (1/1) ...
[2020-09-25 07:28:50,840 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:28:50" (1/1) ...
[2020-09-25 07:28:50,854 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 07:28:50,855 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 07:28:50,855 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 07:28:50,855 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 07:28:50,858 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:28:50" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 07:28:50,935 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 07:28:50,935 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 07:28:50,935 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 07:28:50,935 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 07:28:50,935 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery
[2020-09-25 07:28:50,935 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 07:28:50,936 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base
[2020-09-25 07:28:50,936 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 07:28:50,936 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 07:28:50,936 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 07:28:50,936 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 07:28:50,937 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 07:28:50,937 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-25 07:28:50,937 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 07:28:50,937 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 07:28:50,937 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 07:28:50,938 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 07:28:50,938 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 07:28:50,938 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 07:28:50,938 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 07:28:50,939 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 07:28:50,939 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 07:28:50,939 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 07:28:50,939 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 07:28:50,939 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 07:28:50,939 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 07:28:50,940 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 07:28:50,940 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 07:28:50,940 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 07:28:50,940 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 07:28:50,940 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 07:28:50,940 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1
[2020-09-25 07:28:50,941 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2
[2020-09-25 07:28:50,941 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 07:28:50,941 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 07:28:50,941 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 07:28:50,941 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 07:28:50,941 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 07:28:50,942 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 07:28:50,942 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 07:28:50,942 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 07:28:50,942 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 07:28:50,942 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 07:28:50,942 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 07:28:50,942 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 07:28:50,943 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 07:28:50,943 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 07:28:50,943 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 07:28:50,943 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 07:28:50,943 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-25 07:28:50,944 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2
[2020-09-25 07:28:50,944 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 07:28:50,944 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery
[2020-09-25 07:28:50,944 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 07:28:50,944 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base
[2020-09-25 07:28:50,944 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 07:28:50,945 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 07:28:50,945 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 07:28:50,945 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 07:28:50,945 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 07:28:50,945 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 07:28:50,945 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 07:28:50,945 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 07:28:50,946 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 07:28:50,946 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 07:28:50,946 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 07:28:50,946 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 07:28:50,946 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 07:28:50,946 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 07:28:50,947 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 07:28:50,947 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 07:28:50,947 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 07:28:50,947 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 07:28:50,947 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 07:28:50,947 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 07:28:50,948 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 07:28:50,948 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 07:28:50,948 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 07:28:50,948 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 07:28:50,948 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 07:28:50,948 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 07:28:50,948 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 07:28:50,949 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1
[2020-09-25 07:28:50,949 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 07:28:50,949 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 07:28:50,949 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 07:28:50,949 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 07:28:50,949 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 07:28:50,950 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 07:28:50,950 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 07:28:52,184 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 07:28:52,184 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 07:28:52,192 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:28:52 BoogieIcfgContainer
[2020-09-25 07:28:52,192 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 07:28:52,194 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 07:28:52,194 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 07:28:52,198 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 07:28:52,198 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:28:49" (1/3) ...
[2020-09-25 07:28:52,199 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@444b4ab9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:28:52, skipping insertion in model container
[2020-09-25 07:28:52,199 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:28:50" (2/3) ...
[2020-09-25 07:28:52,200 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@444b4ab9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:28:52, skipping insertion in model container
[2020-09-25 07:28:52,200 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:28:52" (3/3) ...
[2020-09-25 07:28:52,202 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec2_product15.cil.c
[2020-09-25 07:28:52,214 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 07:28:52,226 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 07:28:52,250 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 07:28:52,288 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 07:28:52,288 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 07:28:52,289 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 07:28:52,289 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 07:28:52,289 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 07:28:52,289 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 07:28:52,289 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 07:28:52,290 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 07:28:52,323 INFO  L276                IsEmpty]: Start isEmpty. Operand 289 states.
[2020-09-25 07:28:52,342 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 149
[2020-09-25 07:28:52,342 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 07:28:52,344 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]
[2020-09-25 07:28:52,345 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 07:28:52,354 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 07:28:52,354 INFO  L82        PathProgramCache]: Analyzing trace with hash -719522545, now seen corresponding path program 1 times
[2020-09-25 07:28:52,367 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 07:28:52,368 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1340191533]
[2020-09-25 07:28:52,368 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 07:28:52,698 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:28:52,905 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:28:53,156 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:28:54,514 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:28:55,540 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:28:56,356 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:28:57,782 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:28:57,782 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 181
[2020-09-25 07:28:57,782 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-25 07:28:57,783 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5067
[2020-09-25 07:28:57,788 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:28:57,788 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:28:57,789 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:28:57,789 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 136
[2020-09-25 07:28:57,789 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:28:57,789 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 6
[2020-09-25 07:28:58,204 WARN  L193               SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 07:28:58,207 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 07:28:58,224 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:28:58,235 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:28:58,342 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:28:58,343 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-25 07:28:58,343 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:28:58,343 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 117
[2020-09-25 07:28:58,343 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:28:58,344 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:28:58,344 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:28:58,344 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:28:58,344 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:28:58,345 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:28:58,401 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-25 07:28:58,402 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:28:58,404 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:28:58,406 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:28:58,406 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:28:58,406 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:28:58,406 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:28:58,407 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:28:58,407 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:28:58,407 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:28:58,407 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:28:58,408 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:28:58,408 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:28:58,409 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-25 07:28:58,410 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:28:58,411 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:28:58,413 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:28:58,413 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:28:58,413 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:28:58,414 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:28:58,414 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:28:58,414 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:28:58,414 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:28:58,414 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:28:58,415 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:28:58,415 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:28:58,416 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-25 07:28:58,417 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:28:58,418 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:28:58,423 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:28:58,423 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:28:58,423 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:28:58,423 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 07:28:58,424 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:28:58,424 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:28:58,424 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:28:58,424 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:28:58,425 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:28:58,425 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:28:58,427 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-25 07:28:58,428 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:28:58,429 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:28:58,431 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:28:58,431 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:28:58,431 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:28:58,431 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:28:58,432 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:28:58,432 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:28:58,432 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:28:58,432 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:28:58,433 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:28:58,433 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:28:58,441 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-25 07:28:58,442 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:28:58,443 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:28:58,445 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:28:58,446 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 07:28:58,446 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:28:58,446 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:28:58,446 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:28:58,447 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:28:58,447 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:28:58,447 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:28:58,447 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:28:58,447 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:28:58,449 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125
[2020-09-25 07:28:58,451 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:28:58,452 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:28:58,454 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:28:58,455 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:28:58,455 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:28:58,455 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 07:28:58,455 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:28:58,456 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:28:58,456 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:28:58,456 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 07:28:58,457 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:28:58,457 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:28:58,459 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135
[2020-09-25 07:28:58,460 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:28:58,462 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:28:58,463 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:28:58,464 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:28:58,464 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:28:58,464 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:28:58,464 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:28:58,465 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:28:58,465 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:28:58,465 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 07:28:58,465 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:28:58,466 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:28:58,545 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 07:28:58,547 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1340191533]
[2020-09-25 07:28:58,550 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 07:28:58,550 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-25 07:28:58,551 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632562451]
[2020-09-25 07:28:58,564 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-25 07:28:58,565 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 07:28:58,591 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-25 07:28:58,592 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2020-09-25 07:28:58,597 INFO  L87              Difference]: Start difference. First operand 289 states. Second operand 4 states.
[2020-09-25 07:29:00,316 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 07:29:00,317 INFO  L93              Difference]: Finished difference Result 419 states and 503 transitions.
[2020-09-25 07:29:00,318 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2020-09-25 07:29:00,321 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 148
[2020-09-25 07:29:00,326 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 07:29:00,368 INFO  L225             Difference]: With dead ends: 419
[2020-09-25 07:29:00,368 INFO  L226             Difference]: Without dead ends: 276
[2020-09-25 07:29:00,378 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2020-09-25 07:29:00,412 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 276 states.
[2020-09-25 07:29:00,593 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 228.
[2020-09-25 07:29:00,595 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 228 states.
[2020-09-25 07:29:00,600 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 248 transitions.
[2020-09-25 07:29:00,604 INFO  L78                 Accepts]: Start accepts. Automaton has 228 states and 248 transitions. Word has length 148
[2020-09-25 07:29:00,608 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 07:29:00,608 INFO  L479      AbstractCegarLoop]: Abstraction has 228 states and 248 transitions.
[2020-09-25 07:29:00,609 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-25 07:29:00,617 INFO  L276                IsEmpty]: Start isEmpty. Operand 228 states and 248 transitions.
[2020-09-25 07:29:00,630 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 150
[2020-09-25 07:29:00,631 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 07:29:00,632 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]
[2020-09-25 07:29:00,632 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 07:29:00,632 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 07:29:00,633 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 07:29:00,634 INFO  L82        PathProgramCache]: Analyzing trace with hash -914223237, now seen corresponding path program 1 times
[2020-09-25 07:29:00,634 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 07:29:00,634 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [715729892]
[2020-09-25 07:29:00,635 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 07:29:00,725 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:29:00,807 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:00,934 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:02,738 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:03,558 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:04,707 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:05,734 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:29:05,735 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 182
[2020-09-25 07:29:05,735 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-25 07:29:05,735 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5000
[2020-09-25 07:29:05,736 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:29:05,736 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:29:05,737 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 07:29:05,737 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 135
[2020-09-25 07:29:05,737 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 3
[2020-09-25 07:29:05,737 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:29:06,205 WARN  L193               SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 07:29:06,207 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 07:29:06,272 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:29:06,283 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:06,394 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:29:06,394 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-25 07:29:06,395 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:29:06,395 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 120
[2020-09-25 07:29:06,395 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:29:06,396 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:29:06,396 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:29:06,396 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:29:06,397 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:29:06,397 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:29:06,434 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-25 07:29:06,435 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:29:06,436 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:06,437 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:29:06,438 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:29:06,438 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:29:06,438 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:29:06,438 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:29:06,439 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:29:06,439 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:29:06,439 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:29:06,439 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:29:06,440 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:29:06,441 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-25 07:29:06,442 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:29:06,443 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:06,445 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:29:06,445 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:29:06,445 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:29:06,446 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:29:06,446 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:29:06,446 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:29:06,446 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:29:06,447 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:29:06,447 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:29:06,447 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:29:06,449 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-25 07:29:06,449 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:29:06,451 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:06,455 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:29:06,455 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:29:06,456 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:29:06,456 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 07:29:06,456 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:29:06,457 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:29:06,457 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:29:06,457 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:29:06,457 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:29:06,458 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:29:06,460 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-25 07:29:06,460 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:29:06,461 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:06,463 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:29:06,463 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:29:06,464 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:29:06,464 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:29:06,464 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:29:06,464 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:29:06,465 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:29:06,465 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:29:06,465 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:29:06,465 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:29:06,475 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-25 07:29:06,476 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:29:06,477 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:06,479 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:29:06,479 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 07:29:06,479 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:29:06,480 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:29:06,480 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:29:06,480 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:29:06,480 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:29:06,481 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:29:06,481 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:29:06,481 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:29:06,483 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126
[2020-09-25 07:29:06,484 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:29:06,485 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:06,487 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:29:06,487 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:29:06,488 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:29:06,488 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:29:06,488 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:29:06,488 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:29:06,488 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:29:06,489 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 07:29:06,489 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:29:06,489 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:29:06,491 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136
[2020-09-25 07:29:06,492 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:29:06,494 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:06,495 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:29:06,495 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:29:06,496 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:29:06,496 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:29:06,496 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:29:06,496 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:29:06,497 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:29:06,497 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 07:29:06,497 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:29:06,497 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:29:06,524 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 07:29:06,524 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [715729892]
[2020-09-25 07:29:06,525 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 07:29:06,525 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 07:29:06,525 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905153178]
[2020-09-25 07:29:06,527 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 07:29:06,528 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 07:29:06,528 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 07:29:06,528 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-25 07:29:06,528 INFO  L87              Difference]: Start difference. First operand 228 states and 248 transitions. Second operand 5 states.
[2020-09-25 07:29:07,211 WARN  L193               SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 07:29:08,008 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 07:29:08,009 INFO  L93              Difference]: Finished difference Result 342 states and 390 transitions.
[2020-09-25 07:29:08,009 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-09-25 07:29:08,009 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 149
[2020-09-25 07:29:08,010 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 07:29:08,013 INFO  L225             Difference]: With dead ends: 342
[2020-09-25 07:29:08,014 INFO  L226             Difference]: Without dead ends: 265
[2020-09-25 07:29:08,017 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-09-25 07:29:08,019 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 265 states.
[2020-09-25 07:29:08,088 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 218.
[2020-09-25 07:29:08,088 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 218 states.
[2020-09-25 07:29:08,090 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 235 transitions.
[2020-09-25 07:29:08,090 INFO  L78                 Accepts]: Start accepts. Automaton has 218 states and 235 transitions. Word has length 149
[2020-09-25 07:29:08,093 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 07:29:08,093 INFO  L479      AbstractCegarLoop]: Abstraction has 218 states and 235 transitions.
[2020-09-25 07:29:08,094 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 07:29:08,094 INFO  L276                IsEmpty]: Start isEmpty. Operand 218 states and 235 transitions.
[2020-09-25 07:29:08,101 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 159
[2020-09-25 07:29:08,101 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 07:29:08,101 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]
[2020-09-25 07:29:08,101 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 07:29:08,102 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 07:29:08,102 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 07:29:08,102 INFO  L82        PathProgramCache]: Analyzing trace with hash 1507398137, now seen corresponding path program 1 times
[2020-09-25 07:29:08,102 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 07:29:08,103 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1746162631]
[2020-09-25 07:29:08,103 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 07:29:08,156 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:29:08,214 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:08,864 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:09,766 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:11,494 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:12,929 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:13,196 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:29:13,197 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 189
[2020-09-25 07:29:13,197 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-25 07:29:13,197 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5038
[2020-09-25 07:29:13,198 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:29:13,198 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:29:13,198 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 07:29:13,199 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 78
[2020-09-25 07:29:13,199 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 77
[2020-09-25 07:29:13,199 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:29:13,565 WARN  L193               SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 07:29:13,566 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 07:29:13,602 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:29:13,637 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:13,835 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:29:13,835 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-25 07:29:13,836 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:29:13,836 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 232
[2020-09-25 07:29:13,836 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:29:13,836 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:29:13,837 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 07:29:13,837 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:29:13,837 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 74
[2020-09-25 07:29:13,837 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:29:13,891 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-25 07:29:13,892 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:29:13,894 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:13,906 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:29:13,907 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:29:13,907 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:29:13,907 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 13
[2020-09-25 07:29:13,908 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:29:13,911 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:29:13,911 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 07:29:13,911 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:29:13,911 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 07:29:13,911 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-25 07:29:13,913 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-25 07:29:13,914 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:29:13,915 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:13,917 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:29:13,918 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:29:13,918 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:29:13,918 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 07:29:13,918 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:29:13,919 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:29:13,919 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 07:29:13,919 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:29:13,919 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 07:29:13,919 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:29:13,921 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-25 07:29:13,922 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:29:13,924 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:13,932 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:29:13,932 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:29:13,932 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:29:13,933 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 07:29:13,933 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:29:13,933 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:29:13,934 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 07:29:13,934 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:29:13,934 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 07:29:13,934 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:29:13,936 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-25 07:29:13,937 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:29:13,941 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:13,944 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:29:13,944 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:29:13,945 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:29:13,945 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 07:29:13,945 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:29:13,945 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:29:13,946 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 07:29:13,946 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:29:13,946 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 07:29:13,946 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:29:13,955 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-25 07:29:13,956 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:29:13,958 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:13,960 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:29:13,960 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 07:29:13,961 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:29:13,961 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 07:29:13,961 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:29:13,962 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:29:13,962 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 07:29:13,962 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:29:13,963 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-09-25 07:29:13,963 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:29:13,964 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135
[2020-09-25 07:29:13,965 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:29:13,966 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:13,968 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:29:13,968 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:29:13,968 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:29:13,968 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:29:13,968 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:29:13,969 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:29:13,969 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:29:13,969 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 07:29:13,969 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:29:13,969 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:29:13,971 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145
[2020-09-25 07:29:13,971 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:29:13,972 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:13,974 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:29:13,974 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:29:13,974 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:29:13,974 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:29:13,974 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:29:13,975 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:29:13,975 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:29:13,975 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 07:29:13,975 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:29:13,975 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:29:14,010 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 07:29:14,011 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1746162631]
[2020-09-25 07:29:14,011 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 07:29:14,011 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-09-25 07:29:14,011 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942827099]
[2020-09-25 07:29:14,014 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-25 07:29:14,014 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 07:29:14,014 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-25 07:29:14,015 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-25 07:29:14,016 INFO  L87              Difference]: Start difference. First operand 218 states and 235 transitions. Second operand 6 states.
[2020-09-25 07:29:14,581 WARN  L193               SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-25 07:29:15,394 WARN  L193               SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 07:29:16,848 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 07:29:16,848 INFO  L93              Difference]: Finished difference Result 565 states and 662 transitions.
[2020-09-25 07:29:16,849 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2020-09-25 07:29:16,850 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 158
[2020-09-25 07:29:16,851 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 07:29:16,855 INFO  L225             Difference]: With dead ends: 565
[2020-09-25 07:29:16,855 INFO  L226             Difference]: Without dead ends: 462
[2020-09-25 07:29:16,857 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90
[2020-09-25 07:29:16,858 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 462 states.
[2020-09-25 07:29:16,932 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 389.
[2020-09-25 07:29:16,933 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 389 states.
[2020-09-25 07:29:16,935 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 438 transitions.
[2020-09-25 07:29:16,935 INFO  L78                 Accepts]: Start accepts. Automaton has 389 states and 438 transitions. Word has length 158
[2020-09-25 07:29:16,936 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 07:29:16,936 INFO  L479      AbstractCegarLoop]: Abstraction has 389 states and 438 transitions.
[2020-09-25 07:29:16,936 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-09-25 07:29:16,936 INFO  L276                IsEmpty]: Start isEmpty. Operand 389 states and 438 transitions.
[2020-09-25 07:29:16,939 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 167
[2020-09-25 07:29:16,939 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 07:29:16,939 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 07:29:16,939 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 07:29:16,939 INFO  L427      AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 07:29:16,940 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 07:29:16,940 INFO  L82        PathProgramCache]: Analyzing trace with hash -1496410835, now seen corresponding path program 1 times
[2020-09-25 07:29:16,940 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 07:29:16,940 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [342161806]
[2020-09-25 07:29:16,941 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 07:29:16,989 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:29:17,053 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:17,908 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:18,067 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:18,660 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:20,479 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:21,994 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:29:21,994 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 201
[2020-09-25 07:29:21,994 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-25 07:29:21,995 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5002
[2020-09-25 07:29:21,995 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:29:21,995 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:29:21,995 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 07:29:21,995 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 124
[2020-09-25 07:29:21,996 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 73
[2020-09-25 07:29:21,996 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:29:22,460 WARN  L193               SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 07:29:22,461 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 07:29:22,468 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:29:22,478 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:22,570 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:29:22,570 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-25 07:29:22,571 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:29:22,571 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 100
[2020-09-25 07:29:22,571 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:29:22,571 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:29:22,571 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:29:22,572 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:29:22,572 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:29:22,572 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:29:22,605 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-25 07:29:22,607 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:29:22,608 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:22,611 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:29:22,611 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:29:22,611 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:29:22,611 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 07:29:22,612 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:29:22,612 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:29:22,612 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:29:22,612 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:29:22,612 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:29:22,613 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:29:22,614 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-25 07:29:22,614 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:29:22,615 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:22,617 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:29:22,617 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:29:22,617 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:29:22,617 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:29:22,618 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:29:22,618 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:29:22,618 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:29:22,618 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:29:22,618 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:29:22,619 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:29:22,620 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-25 07:29:22,620 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:29:22,621 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:22,625 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:29:22,626 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:29:22,626 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:29:22,626 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 07:29:22,626 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:29:22,626 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:29:22,627 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:29:22,627 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:29:22,627 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:29:22,627 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:29:22,629 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-25 07:29:22,630 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:29:22,631 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:22,633 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:29:22,633 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:29:22,633 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:29:22,633 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:29:22,634 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:29:22,634 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:29:22,634 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:29:22,634 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:29:22,634 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:29:22,635 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:29:22,644 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-25 07:29:22,645 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:29:22,647 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:22,650 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:29:22,650 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 07:29:22,651 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:29:22,651 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 07:29:22,651 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:29:22,651 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:29:22,652 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 07:29:22,652 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:29:22,652 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-25 07:29:22,652 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:29:22,668 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132
[2020-09-25 07:29:22,669 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:29:22,671 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:22,677 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:29:22,678 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-25 07:29:22,678 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:29:22,679 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 07:29:22,679 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:29:22,679 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:29:22,679 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 07:29:22,679 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:29:22,679 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 11
[2020-09-25 07:29:22,680 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:29:22,682 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 07:29:22,682 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:29:22,683 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:22,692 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:29:22,692 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:29:22,693 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:29:22,693 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-25 07:29:22,693 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:29:22,693 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:29:22,693 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:29:22,694 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:29:22,694 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:29:22,694 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:29:22,695 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143
[2020-09-25 07:29:22,697 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:29:22,698 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:22,701 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:29:22,702 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:29:22,702 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:29:22,702 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 07:29:22,702 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:29:22,703 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:29:22,703 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 07:29:22,703 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:29:22,703 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 07:29:22,703 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:29:22,705 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153
[2020-09-25 07:29:22,710 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:29:22,712 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:22,715 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:29:22,716 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:29:22,716 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:29:22,716 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 07:29:22,716 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:29:22,716 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:29:22,717 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 07:29:22,717 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:29:22,717 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 07:29:22,717 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:29:22,755 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 07:29:22,756 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [342161806]
[2020-09-25 07:29:22,756 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 07:29:22,757 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-09-25 07:29:22,757 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413154720]
[2020-09-25 07:29:22,758 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-25 07:29:22,758 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 07:29:22,758 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-25 07:29:22,758 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-25 07:29:22,759 INFO  L87              Difference]: Start difference. First operand 389 states and 438 transitions. Second operand 6 states.
[2020-09-25 07:29:23,274 WARN  L193               SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 07:29:25,426 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 07:29:25,426 INFO  L93              Difference]: Finished difference Result 1034 states and 1371 transitions.
[2020-09-25 07:29:25,426 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2020-09-25 07:29:25,427 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 166
[2020-09-25 07:29:25,427 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 07:29:25,436 INFO  L225             Difference]: With dead ends: 1034
[2020-09-25 07:29:25,436 INFO  L226             Difference]: Without dead ends: 1031
[2020-09-25 07:29:25,437 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110
[2020-09-25 07:29:25,439 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1031 states.
[2020-09-25 07:29:25,580 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 669.
[2020-09-25 07:29:25,580 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 669 states.
[2020-09-25 07:29:25,584 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 773 transitions.
[2020-09-25 07:29:25,584 INFO  L78                 Accepts]: Start accepts. Automaton has 669 states and 773 transitions. Word has length 166
[2020-09-25 07:29:25,585 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 07:29:25,585 INFO  L479      AbstractCegarLoop]: Abstraction has 669 states and 773 transitions.
[2020-09-25 07:29:25,585 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-09-25 07:29:25,585 INFO  L276                IsEmpty]: Start isEmpty. Operand 669 states and 773 transitions.
[2020-09-25 07:29:25,589 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 214
[2020-09-25 07:29:25,590 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 07:29:25,590 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 07:29:25,591 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-09-25 07:29:25,591 INFO  L427      AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 07:29:25,591 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 07:29:25,591 INFO  L82        PathProgramCache]: Analyzing trace with hash 2078951135, now seen corresponding path program 1 times
[2020-09-25 07:29:25,591 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 07:29:25,592 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [587376618]
[2020-09-25 07:29:25,592 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 07:29:25,644 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:29:25,704 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:25,843 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:26,004 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:26,202 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:29,624 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:30,684 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:29:30,684 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 254
[2020-09-25 07:29:30,684 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-25 07:29:30,684 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5037
[2020-09-25 07:29:30,685 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:29:30,685 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:29:30,685 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 07:29:30,685 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 157
[2020-09-25 07:29:30,685 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 38
[2020-09-25 07:29:30,686 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:29:30,967 WARN  L193               SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 07:29:30,969 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 07:29:30,978 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:29:30,988 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:31,085 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:29:31,085 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-25 07:29:31,085 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:29:31,085 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 105
[2020-09-25 07:29:31,086 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:29:31,086 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:29:31,086 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:29:31,086 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:29:31,087 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:29:31,087 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:29:31,128 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-25 07:29:31,129 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:29:31,130 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:31,131 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:29:31,131 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:29:31,131 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:29:31,131 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 07:29:31,132 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:29:31,132 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:29:31,132 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:29:31,133 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:29:31,133 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:29:31,133 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:29:31,134 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-25 07:29:31,135 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:29:31,136 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:31,137 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:29:31,138 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:29:31,138 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:29:31,138 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:29:31,139 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:29:31,139 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:29:31,139 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:29:31,140 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:29:31,140 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:29:31,140 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:29:31,142 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-25 07:29:31,142 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:29:31,143 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:31,146 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:29:31,147 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:29:31,147 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:29:31,148 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 07:29:31,148 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:29:31,148 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:29:31,149 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:29:31,149 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:29:31,149 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:29:31,150 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:29:31,151 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-25 07:29:31,152 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:29:31,153 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:31,154 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:29:31,154 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:29:31,155 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:29:31,155 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 07:29:31,155 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:29:31,156 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:29:31,156 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:29:31,156 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:29:31,157 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:29:31,157 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:29:31,168 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-25 07:29:31,169 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:29:31,171 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:31,172 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:29:31,173 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 07:29:31,173 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:29:31,173 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:29:31,174 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:29:31,174 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:29:31,174 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:29:31,175 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:29:31,175 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:29:31,175 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:29:31,192 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133
[2020-09-25 07:29:31,193 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:29:31,195 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:31,202 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:29:31,203 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 07:29:31,203 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:29:31,203 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 07:29:31,203 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:29:31,203 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:29:31,204 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 07:29:31,204 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:29:31,204 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-25 07:29:31,204 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:29:31,226 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138
[2020-09-25 07:29:31,230 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:29:31,235 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:31,285 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:31,332 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:29:31,332 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 43
[2020-09-25 07:29:31,333 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 07:29:31,333 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 101
[2020-09-25 07:29:31,333 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:29:31,334 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:29:31,334 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 07:29:31,334 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-09-25 07:29:31,335 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 42
[2020-09-25 07:29:31,335 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:29:31,359 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 07:29:31,363 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:29:31,367 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:31,420 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:29:31,420 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 36
[2020-09-25 07:29:31,421 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:29:31,421 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 56
[2020-09-25 07:29:31,421 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:29:31,422 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:29:31,422 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-25 07:29:31,422 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:29:31,423 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 32
[2020-09-25 07:29:31,423 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:29:31,480 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 07:29:31,481 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:29:31,482 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:31,484 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:29:31,484 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:29:31,484 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:29:31,485 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:29:31,485 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:29:31,485 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:29:31,486 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:29:31,486 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:29:31,487 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:29:31,487 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:29:31,489 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-09-25 07:29:31,490 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:29:31,492 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:31,496 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:29:31,497 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:29:31,497 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:29:31,497 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 07:29:31,498 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:29:31,498 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:29:31,499 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-25 07:29:31,499 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:29:31,499 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 07:29:31,500 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:29:31,540 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190
[2020-09-25 07:29:31,541 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:29:31,543 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:31,544 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:29:31,545 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:29:31,545 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:29:31,545 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:29:31,546 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:29:31,546 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:29:31,546 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:29:31,547 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 07:29:31,547 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:29:31,547 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:29:31,549 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200
[2020-09-25 07:29:31,550 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:29:31,551 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:29:31,553 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:29:31,553 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:29:31,553 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:29:31,554 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:29:31,554 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:29:31,554 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:29:31,555 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:29:31,555 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 07:29:31,555 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:29:31,556 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:29:31,636 INFO  L134       CoverageAnalysis]: Checked inductivity of 41 backedges. 31 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2020-09-25 07:29:31,636 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [587376618]
[2020-09-25 07:29:31,637 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 07:29:31,637 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14
[2020-09-25 07:29:31,637 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874339808]
[2020-09-25 07:29:31,638 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 14 states
[2020-09-25 07:29:31,638 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 07:29:31,638 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2020-09-25 07:29:31,639 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182
[2020-09-25 07:29:31,639 INFO  L87              Difference]: Start difference. First operand 669 states and 773 transitions. Second operand 14 states.
[2020-09-25 07:29:32,239 WARN  L193               SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-25 07:29:33,638 WARN  L193               SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-25 07:29:33,948 WARN  L193               SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 193