/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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_spec1_product56.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 10:51:32,238 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 10:51:32,243 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 10:51:32,273 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 10:51:32,274 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 10:51:32,275 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 10:51:32,276 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 10:51:32,279 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 10:51:32,280 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 10:51:32,282 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 10:51:32,283 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 10:51:32,284 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 10:51:32,284 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 10:51:32,286 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 10:51:32,287 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 10:51:32,288 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 10:51:32,290 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 10:51:32,291 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 10:51:32,293 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 10:51:32,295 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 10:51:32,296 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 10:51:32,298 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 10:51:32,299 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 10:51:32,300 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 10:51:32,303 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 10:51:32,303 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 10:51:32,303 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 10:51:32,304 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 10:51:32,305 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 10:51:32,306 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 10:51:32,306 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 10:51:32,307 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 10:51:32,308 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 10:51:32,309 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 10:51:32,311 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 10:51:32,311 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 10:51:32,312 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 10:51:32,312 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 10:51:32,312 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 10:51:32,313 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 10:51:32,314 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 10:51:32,315 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 10:51:32,342 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 10:51:32,342 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 10:51:32,344 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 10:51:32,344 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 10:51:32,344 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 10:51:32,344 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 10:51:32,345 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 10:51:32,345 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 10:51:32,345 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 10:51:32,345 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 10:51:32,345 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 10:51:32,346 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 10:51:32,346 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 10:51:32,346 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 10:51:32,346 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 10:51:32,346 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 10:51:32,347 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 10:51:32,347 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 10:51:32,347 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 10:51:32,347 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 10:51:32,347 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 10:51:32,348 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 10:51:32,348 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 10:51:32,348 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 10:51:32,348 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 10:51:32,348 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 10:51:32,349 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 10:51:32,349 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 10:51:32,349 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 10:51:32,349 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;
[2020-09-25 10:51:32,802 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 10:51:32,823 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 10:51:32,827 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 10:51:32,829 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 10:51:32,830 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 10:51:32,831 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product56.cil.c
[2020-09-25 10:51:32,930 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dafcc1519/deaa2897e6644ad599636f9f8ac4f2cc/FLAG49cf7b79f
[2020-09-25 10:51:33,599 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 10:51:33,600 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product56.cil.c
[2020-09-25 10:51:33,620 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dafcc1519/deaa2897e6644ad599636f9f8ac4f2cc/FLAG49cf7b79f
[2020-09-25 10:51:33,820 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dafcc1519/deaa2897e6644ad599636f9f8ac4f2cc
[2020-09-25 10:51:33,836 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 10:51:33,843 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 10:51:33,847 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 10:51:33,847 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 10:51:33,851 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 10:51:33,852 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:51:33" (1/1) ...
[2020-09-25 10:51:33,857 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d265cc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:33, skipping insertion in model container
[2020-09-25 10:51:33,858 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:51:33" (1/1) ...
[2020-09-25 10:51:33,868 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 10:51:33,948 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 10:51:34,336 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 10:51:34,362 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 10:51:34,545 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 10:51:34,593 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 10:51:34,593 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:34 WrapperNode
[2020-09-25 10:51:34,594 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 10:51:34,595 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 10:51:34,595 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 10:51:34,595 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 10:51:34,610 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:34" (1/1) ...
[2020-09-25 10:51:34,611 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:34" (1/1) ...
[2020-09-25 10:51:34,632 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:34" (1/1) ...
[2020-09-25 10:51:34,633 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:34" (1/1) ...
[2020-09-25 10:51:34,669 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:34" (1/1) ...
[2020-09-25 10:51:34,680 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:34" (1/1) ...
[2020-09-25 10:51:34,685 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:34" (1/1) ...
[2020-09-25 10:51:34,694 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 10:51:34,694 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 10:51:34,694 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 10:51:34,695 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 10:51:34,696 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:34" (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 10:51:34,804 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 10:51:34,805 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 10:51:34,805 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 10:51:34,805 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 10:51:34,806 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 10:51:34,806 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 10:51:34,806 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 10:51:34,808 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 10:51:34,808 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 10:51:34,808 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 10:51:34,808 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 10:51:34,809 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-25 10:51:34,809 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-25 10:51:34,809 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor
[2020-09-25 10:51:34,809 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 10:51:34,811 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 10:51:34,811 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 10:51:34,811 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 10:51:34,811 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 10:51:34,812 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 10:51:34,812 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-09-25 10:51:34,813 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-25 10:51:34,813 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-25 10:51:34,813 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-25 10:51:34,814 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 10:51:34,814 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 10:51:34,815 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 10:51:34,815 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 10:51:34,815 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1
[2020-09-25 10:51:34,815 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 10:51:34,815 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 10:51:34,815 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 10:51:34,816 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 10:51:34,816 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 10:51:34,816 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 10:51:34,816 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 10:51:34,816 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 10:51:34,816 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 10:51:34,817 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 10:51:34,817 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 10:51:34,817 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 10:51:34,817 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-09-25 10:51:34,817 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-25 10:51:34,817 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 10:51:34,818 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 10:51:34,818 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 10:51:34,818 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 10:51:34,818 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 10:51:34,818 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 10:51:34,819 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 10:51:34,819 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 10:51:34,819 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 10:51:34,820 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 10:51:34,820 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 10:51:34,820 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 10:51:34,820 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 10:51:34,821 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 10:51:34,821 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 10:51:34,821 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 10:51:34,821 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 10:51:34,821 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 10:51:34,822 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 10:51:34,822 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 10:51:34,822 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 10:51:34,822 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 10:51:34,823 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-25 10:51:34,823 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-25 10:51:34,823 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 10:51:34,823 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 10:51:34,824 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 10:51:34,824 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 10:51:34,826 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 10:51:34,826 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 10:51:34,826 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-09-25 10:51:34,826 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-25 10:51:34,826 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 10:51:34,827 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 10:51:34,827 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 10:51:34,827 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 10:51:34,827 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1
[2020-09-25 10:51:34,827 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 10:51:34,827 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-25 10:51:34,828 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-09-25 10:51:34,829 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-25 10:51:34,829 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-25 10:51:34,829 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor
[2020-09-25 10:51:34,829 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 10:51:34,829 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 10:51:34,830 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 10:51:34,830 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 10:51:34,830 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 10:51:34,830 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 10:51:34,830 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 10:51:34,831 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 10:51:34,831 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 10:51:34,831 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 10:51:34,831 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 10:51:34,831 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 10:51:34,831 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 10:51:34,832 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 10:51:36,013 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 10:51:36,013 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 10:51:36,021 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:51:36 BoogieIcfgContainer
[2020-09-25 10:51:36,021 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 10:51:36,022 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 10:51:36,023 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 10:51:36,026 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 10:51:36,027 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:51:33" (1/3) ...
[2020-09-25 10:51:36,028 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aec8e19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:51:36, skipping insertion in model container
[2020-09-25 10:51:36,028 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:34" (2/3) ...
[2020-09-25 10:51:36,028 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aec8e19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:51:36, skipping insertion in model container
[2020-09-25 10:51:36,029 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:51:36" (3/3) ...
[2020-09-25 10:51:36,031 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec1_product56.cil.c
[2020-09-25 10:51:36,043 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 10:51:36,054 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 10:51:36,076 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 10:51:36,111 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 10:51:36,111 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 10:51:36,112 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 10:51:36,112 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 10:51:36,112 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 10:51:36,112 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 10:51:36,112 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 10:51:36,113 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 10:51:36,142 INFO  L276                IsEmpty]: Start isEmpty. Operand 342 states.
[2020-09-25 10:51:36,162 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 143
[2020-09-25 10:51:36,162 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 10:51:36,164 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 10:51:36,164 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 10:51:36,172 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 10:51:36,172 INFO  L82        PathProgramCache]: Analyzing trace with hash 826882234, now seen corresponding path program 1 times
[2020-09-25 10:51:36,181 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 10:51:36,182 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [774010348]
[2020-09-25 10:51:36,182 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 10:51:36,469 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:51:36,602 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:51:36,850 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:51:38,393 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:51:39,547 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:51:41,531 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:51:41,531 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 173
[2020-09-25 10:51:41,532 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 4
[2020-09-25 10:51:41,532 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5052
[2020-09-25 10:51:41,551 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:51:41,552 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:51:41,552 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 10:51:41,553 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 79
[2020-09-25 10:51:41,553 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 61
[2020-09-25 10:51:41,553 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 9
[2020-09-25 10:51:42,161 WARN  L193               SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 10:51:42,164 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 10:51:42,203 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:51:42,247 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:51:42,503 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:51:42,504 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 10:51:42,504 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:51:42,504 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 298
[2020-09-25 10:51:42,505 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:51:42,505 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:51:42,505 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:51:42,506 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:51:42,506 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 75
[2020-09-25 10:51:42,507 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:51:42,591 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 10:51:42,593 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:51:42,595 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:51:42,599 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:51:42,599 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:51:42,599 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:51:42,600 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 10:51:42,600 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:51:42,600 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:51:42,600 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:51:42,600 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:51:42,601 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:51:42,601 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:51:42,603 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 10:51:42,604 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:51:42,605 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:51:42,609 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:51:42,610 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:51:42,610 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:51:42,610 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 10:51:42,611 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:51:42,611 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:51:42,611 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:51:42,612 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:51:42,612 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:51:42,612 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:51:42,614 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 10:51:42,616 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:51:42,618 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:51:42,627 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:51:42,628 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:51:42,628 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:51:42,628 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 10:51:42,628 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:51:42,629 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:51:42,629 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:51:42,629 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:51:42,629 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 10:51:42,630 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:51:42,632 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 10:51:42,633 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:51:42,635 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:51:42,638 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:51:42,638 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:51:42,639 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:51:42,639 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 10:51:42,639 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:51:42,639 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:51:42,640 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:51:42,640 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:51:42,640 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:51:42,640 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:51:42,642 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120
[2020-09-25 10:51:42,643 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:51:42,644 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:51:42,646 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:51:42,646 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:51:42,647 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:51:42,647 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 10:51:42,647 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:51:42,647 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:51:42,647 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:51:42,648 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 10:51:42,648 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:51:42,648 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:51:42,650 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130
[2020-09-25 10:51:42,651 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:51:42,652 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:51:42,654 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:51:42,655 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:51:42,655 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:51:42,655 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 10:51:42,655 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:51:42,655 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:51:42,656 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:51:42,656 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 10:51:42,656 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:51:42,656 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:51:42,686 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 10:51:42,687 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [774010348]
[2020-09-25 10:51:42,689 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 10:51:42,689 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-25 10:51:42,690 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015556040]
[2020-09-25 10:51:42,697 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-25 10:51:42,697 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 10:51:42,716 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-25 10:51:42,718 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-25 10:51:42,720 INFO  L87              Difference]: Start difference. First operand 342 states. Second operand 4 states.
[2020-09-25 10:51:43,484 WARN  L193               SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 10:51:46,118 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 10:51:46,118 INFO  L93              Difference]: Finished difference Result 769 states and 933 transitions.
[2020-09-25 10:51:46,119 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-09-25 10:51:46,121 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 142
[2020-09-25 10:51:46,122 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 10:51:46,145 INFO  L225             Difference]: With dead ends: 769
[2020-09-25 10:51:46,145 INFO  L226             Difference]: Without dead ends: 538
[2020-09-25 10:51:46,151 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-09-25 10:51:46,172 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 538 states.
[2020-09-25 10:51:46,366 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 462.
[2020-09-25 10:51:46,368 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 462 states.
[2020-09-25 10:51:46,371 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 521 transitions.
[2020-09-25 10:51:46,374 INFO  L78                 Accepts]: Start accepts. Automaton has 462 states and 521 transitions. Word has length 142
[2020-09-25 10:51:46,376 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 10:51:46,376 INFO  L479      AbstractCegarLoop]: Abstraction has 462 states and 521 transitions.
[2020-09-25 10:51:46,376 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-25 10:51:46,376 INFO  L276                IsEmpty]: Start isEmpty. Operand 462 states and 521 transitions.
[2020-09-25 10:51:46,389 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 162
[2020-09-25 10:51:46,390 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 10:51:46,394 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]
[2020-09-25 10:51:46,395 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 10:51:46,396 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 10:51:46,396 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 10:51:46,396 INFO  L82        PathProgramCache]: Analyzing trace with hash 1051348659, now seen corresponding path program 1 times
[2020-09-25 10:51:46,397 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 10:51:46,397 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [46886390]
[2020-09-25 10:51:46,397 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 10:51:46,462 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:51:46,526 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:51:46,654 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:51:46,863 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:51:47,416 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:51:47,832 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:51:51,491 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:51:51,491 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 200
[2020-09-25 10:51:51,492 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-25 10:51:51,492 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5025
[2020-09-25 10:51:51,492 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:51:51,493 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:51:51,493 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 18
[2020-09-25 10:51:51,494 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 78
[2020-09-25 10:51:51,494 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 78
[2020-09-25 10:51:51,494 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 10:51:51,913 WARN  L193               SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 10:51:51,914 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 10:51:51,955 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:51:52,014 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:51:52,243 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:51:52,243 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 10:51:52,243 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:51:52,243 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 285
[2020-09-25 10:51:52,244 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:51:52,244 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:51:52,244 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:51:52,244 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:51:52,245 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 74
[2020-09-25 10:51:52,245 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:51:52,298 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 10:51:52,299 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:51:52,301 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:51:52,304 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:51:52,304 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:51:52,305 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:51:52,305 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 10:51:52,305 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:51:52,306 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:51:52,306 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:51:52,306 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:51:52,307 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:51:52,307 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:51:52,310 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 10:51:52,311 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:51:52,314 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:51:52,318 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:51:52,318 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:51:52,319 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:51:52,319 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 10:51:52,319 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:51:52,320 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:51:52,320 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:51:52,320 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:51:52,320 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:51:52,321 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:51:52,322 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 10:51:52,324 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:51:52,326 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:51:52,335 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:51:52,335 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:51:52,336 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:51:52,336 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-25 10:51:52,336 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:51:52,337 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:51:52,337 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:51:52,337 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:51:52,337 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 10:51:52,338 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:51:52,340 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 10:51:52,341 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:51:52,343 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:51:52,347 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:51:52,347 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:51:52,347 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:51:52,348 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 10:51:52,348 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:51:52,348 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:51:52,349 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:51:52,349 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:51:52,349 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:51:52,349 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:51:52,366 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118
[2020-09-25 10:51:52,368 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:51:52,371 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:51:52,384 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:51:52,396 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:51:52,401 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:51:52,401 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 29
[2020-09-25 10:51:52,401 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 10:51:52,402 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 32
[2020-09-25 10:51:52,402 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:51:52,402 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:51:52,403 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 10:51:52,403 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-09-25 10:51:52,403 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 28
[2020-09-25 10:51:52,403 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:51:52,418 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 10:51:52,421 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:51:52,426 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:51:52,435 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:51:52,440 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:51:52,440 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 22
[2020-09-25 10:51:52,441 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 10:51:52,444 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 18
[2020-09-25 10:51:52,444 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:51:52,445 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:51:52,445 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-25 10:51:52,445 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-09-25 10:51:52,446 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 21
[2020-09-25 10:51:52,446 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:51:52,455 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 10:51:52,458 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:51:52,460 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:51:52,469 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:51:52,470 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-25 10:51:52,470 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:51:52,471 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-25 10:51:52,471 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:51:52,472 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:51:52,472 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 10:51:52,473 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-09-25 10:51:52,473 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 14
[2020-09-25 10:51:52,474 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 10:51:52,536 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 10:51:52,572 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:51:52,574 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:51:52,577 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:51:52,577 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:51:52,577 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:51:52,578 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 10:51:52,578 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:51:52,578 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:51:52,578 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:51:52,579 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:51:52,579 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:51:52,579 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:51:52,581 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139
[2020-09-25 10:51:52,582 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:51:52,583 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:51:52,585 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:51:52,585 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:51:52,585 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:51:52,586 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 10:51:52,586 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:51:52,586 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:51:52,586 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:51:52,587 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 10:51:52,587 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:51:52,587 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:51:52,589 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149
[2020-09-25 10:51:52,589 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:51:52,591 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:51:52,593 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:51:52,593 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:51:52,593 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:51:52,593 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 10:51:52,594 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:51:52,594 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:51:52,594 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:51:52,594 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 10:51:52,594 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:51:52,595 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:51:52,637 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 10:51:52,637 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [46886390]
[2020-09-25 10:51:52,638 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 10:51:52,638 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-09-25 10:51:52,638 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703530297]
[2020-09-25 10:51:52,640 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-09-25 10:51:52,641 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 10:51:52,641 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-09-25 10:51:52,641 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2020-09-25 10:51:52,642 INFO  L87              Difference]: Start difference. First operand 462 states and 521 transitions. Second operand 7 states.
[2020-09-25 10:51:53,177 WARN  L193               SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 10:51:54,959 WARN  L193               SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 10:51:56,648 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 10:51:56,648 INFO  L93              Difference]: Finished difference Result 1230 states and 1524 transitions.
[2020-09-25 10:51:56,650 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2020-09-25 10:51:56,651 INFO  L78                 Accepts]: Start accepts. Automaton has 7 states. Word has length 161
[2020-09-25 10:51:56,652 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 10:51:56,662 INFO  L225             Difference]: With dead ends: 1230
[2020-09-25 10:51:56,662 INFO  L226             Difference]: Without dead ends: 878
[2020-09-25 10:51:56,671 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132
[2020-09-25 10:51:56,674 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 878 states.
[2020-09-25 10:51:56,830 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 733.
[2020-09-25 10:51:56,830 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 733 states.
[2020-09-25 10:51:56,835 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 835 transitions.
[2020-09-25 10:51:56,836 INFO  L78                 Accepts]: Start accepts. Automaton has 733 states and 835 transitions. Word has length 161
[2020-09-25 10:51:56,837 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 10:51:56,837 INFO  L479      AbstractCegarLoop]: Abstraction has 733 states and 835 transitions.
[2020-09-25 10:51:56,837 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-09-25 10:51:56,837 INFO  L276                IsEmpty]: Start isEmpty. Operand 733 states and 835 transitions.
[2020-09-25 10:51:56,840 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 162
[2020-09-25 10:51:56,840 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 10:51:56,841 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]
[2020-09-25 10:51:56,841 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 10:51:56,841 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 10:51:56,841 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 10:51:56,842 INFO  L82        PathProgramCache]: Analyzing trace with hash -1953483698, now seen corresponding path program 1 times
[2020-09-25 10:51:56,842 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 10:51:56,842 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1641734210]
[2020-09-25 10:51:56,842 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 10:51:56,900 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:51:56,956 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:51:57,800 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:51:57,904 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:51:58,910 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:52:01,902 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:52:01,903 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 192
[2020-09-25 10:52:01,903 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 4
[2020-09-25 10:52:01,903 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5000
[2020-09-25 10:52:01,904 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:52:01,904 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:52:01,904 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 12
[2020-09-25 10:52:01,904 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 82
[2020-09-25 10:52:01,904 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 94
[2020-09-25 10:52:01,905 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:52:02,282 WARN  L193               SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 10:52:02,284 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 10:52:02,349 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:52:02,390 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:52:02,584 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:52:02,584 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 10:52:02,585 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:52:02,585 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 233
[2020-09-25 10:52:02,585 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:52:02,585 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:52:02,586 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:52:02,586 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:52:02,586 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 78
[2020-09-25 10:52:02,586 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:52:02,626 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 10:52:02,627 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:52:02,629 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:52:02,631 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:52:02,632 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:52:02,632 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:52:02,632 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 10:52:02,632 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:52:02,633 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:52:02,633 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:52:02,633 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:52:02,633 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:52:02,634 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:52:02,635 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 10:52:02,636 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:52:02,637 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:52:02,639 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:52:02,639 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:52:02,639 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:52:02,640 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 10:52:02,640 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:52:02,640 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:52:02,640 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:52:02,640 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:52:02,641 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:52:02,641 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:52:02,642 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 10:52:02,643 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:52:02,645 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:52:02,652 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:52:02,652 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:52:02,652 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:52:02,653 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 10:52:02,653 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:52:02,653 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:52:02,653 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:52:02,654 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:52:02,654 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 10:52:02,654 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:52:02,656 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 10:52:02,657 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:52:02,658 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:52:02,661 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:52:02,661 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:52:02,661 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:52:02,661 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 10:52:02,662 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:52:02,662 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:52:02,662 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:52:02,662 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:52:02,663 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:52:02,663 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:52:02,677 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128
[2020-09-25 10:52:02,679 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:52:02,680 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:52:02,683 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:52:02,683 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 10:52:02,684 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:52:02,684 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 10:52:02,684 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:52:02,684 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:52:02,685 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:52:02,685 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:52:02,685 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 10:52:02,685 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:52:02,687 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139
[2020-09-25 10:52:02,688 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:52:02,690 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:52:02,696 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:52:02,697 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:52:02,697 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:52:02,697 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 10:52:02,697 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:52:02,698 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:52:02,698 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 10:52:02,698 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:52:02,698 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 10:52:02,699 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:52:02,722 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149
[2020-09-25 10:52:02,723 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:52:02,724 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:52:02,726 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:52:02,726 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:52:02,726 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:52:02,727 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 10:52:02,727 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:52:02,727 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:52:02,728 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:52:02,728 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 10:52:02,728 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:52:02,728 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:52:02,809 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 10:52:02,809 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1641734210]
[2020-09-25 10:52:02,810 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 10:52:02,810 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2020-09-25 10:52:02,810 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511055398]
[2020-09-25 10:52:02,813 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-25 10:52:02,813 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 10:52:02,814 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-25 10:52:02,814 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2020-09-25 10:52:02,814 INFO  L87              Difference]: Start difference. First operand 733 states and 835 transitions. Second operand 9 states.
[2020-09-25 10:52:03,359 WARN  L193               SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 10:52:04,615 WARN  L193               SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 10:52:04,927 WARN  L193               SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 10:52:05,252 WARN  L193               SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 10:52:05,584 WARN  L193               SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 10:52:05,879 WARN  L193               SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 10:52:06,183 WARN  L193               SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 10:52:06,474 WARN  L193               SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 10:52:06,924 WARN  L193               SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 10:52:09,550 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 10:52:09,550 INFO  L93              Difference]: Finished difference Result 2084 states and 2544 transitions.
[2020-09-25 10:52:09,551 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2020-09-25 10:52:09,551 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 161
[2020-09-25 10:52:09,552 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 10:52:09,566 INFO  L225             Difference]: With dead ends: 2084
[2020-09-25 10:52:09,566 INFO  L226             Difference]: Without dead ends: 1381
[2020-09-25 10:52:09,570 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342
[2020-09-25 10:52:09,572 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1381 states.
[2020-09-25 10:52:09,751 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1381 to 1231.
[2020-09-25 10:52:09,751 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1231 states.
[2020-09-25 10:52:09,760 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1231 states to 1231 states and 1392 transitions.
[2020-09-25 10:52:09,763 INFO  L78                 Accepts]: Start accepts. Automaton has 1231 states and 1392 transitions. Word has length 161
[2020-09-25 10:52:09,764 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 10:52:09,764 INFO  L479      AbstractCegarLoop]: Abstraction has 1231 states and 1392 transitions.
[2020-09-25 10:52:09,764 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-09-25 10:52:09,765 INFO  L276                IsEmpty]: Start isEmpty. Operand 1231 states and 1392 transitions.
[2020-09-25 10:52:09,767 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 167
[2020-09-25 10:52:09,767 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 10:52:09,767 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 10:52:09,768 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 10:52:09,768 INFO  L427      AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 10:52:09,768 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 10:52:09,768 INFO  L82        PathProgramCache]: Analyzing trace with hash -1356616012, now seen corresponding path program 1 times
[2020-09-25 10:52:09,769 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 10:52:09,769 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1084142513]
[2020-09-25 10:52:09,769 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 10:52:09,814 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:52:09,879 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:52:10,161 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:52:10,641 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:52:12,898 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:52:12,898 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 199
[2020-09-25 10:52:12,898 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 10:52:12,898 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3081
[2020-09-25 10:52:12,899 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:52:12,899 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:52:12,899 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 10:52:12,899 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 78
[2020-09-25 10:52:12,899 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 117
[2020-09-25 10:52:12,900 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 10:52:13,272 WARN  L193               SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 10:52:13,273 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 10:52:13,321 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:52:13,367 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:52:13,591 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:52:13,592 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 10:52:13,592 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:52:13,592 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 269
[2020-09-25 10:52:13,593 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:52:13,594 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:52:13,594 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:52:13,594 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:52:13,595 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 74
[2020-09-25 10:52:13,595 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 10:52:13,651 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 10:52:13,652 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:52:13,654 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:52:13,657 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:52:13,657 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:52:13,657 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:52:13,658 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 10:52:13,658 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:52:13,659 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:52:13,659 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:52:13,659 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:52:13,660 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:52:13,660 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:52:13,661 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 10:52:13,662 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:52:13,664 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:52:13,667 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:52:13,667 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:52:13,667 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:52:13,668 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 10:52:13,668 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:52:13,668 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:52:13,669 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:52:13,669 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:52:13,669 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:52:13,670 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:52:13,671 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 10:52:13,672 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:52:13,674 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:52:13,683 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:52:13,683 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:52:13,684 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:52:13,684 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 10:52:13,684 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:52:13,685 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:52:13,685 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:52:13,685 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:52:13,686 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 10:52:13,686 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:52:13,688 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 10:52:13,689 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:52:13,691 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:52:13,702 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:52:13,703 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:52:13,703 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:52:13,703 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 12
[2020-09-25 10:52:13,704 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:52:13,704 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:52:13,704 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:52:13,705 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:52:13,705 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:52:13,705 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:52:13,723 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120
[2020-09-25 10:52:13,728 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:52:13,730 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:52:13,737 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:52:13,738 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 10:52:13,738 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:52:13,738 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 10:52:13,739 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:52:13,739 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:52:13,739 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:52:13,740 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:52:13,740 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 10:52:13,740 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:52:13,762 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133
[2020-09-25 10:52:13,764 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:52:13,766 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:52:13,771 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:52:13,775 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:52:13,775 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 10:52:13,775 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 10:52:13,775 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 10:52:13,776 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:52:13,776 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:52:13,776 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-25 10:52:13,776 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-09-25 10:52:13,776 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-25 10:52:13,777 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:52:13,797 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144
[2020-09-25 10:52:13,799 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:52:13,801 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:52:13,813 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:52:13,813 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:52:13,814 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:52:13,817 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 12
[2020-09-25 10:52:13,817 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:52:13,818 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:52:13,818 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:52:13,818 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:52:13,819 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 10:52:13,819 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:52:13,821 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154
[2020-09-25 10:52:13,828 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:52:13,831 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:52:13,840 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:52:13,840 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:52:13,841 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:52:13,841 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-25 10:52:13,841 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:52:13,842 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:52:13,842 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 10:52:13,842 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:52:13,843 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 10:52:13,843 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:52:13,954 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 10:52:13,955 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1084142513]
[2020-09-25 10:52:13,955 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 10:52:13,955 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11
[2020-09-25 10:52:13,956 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449390932]
[2020-09-25 10:52:13,957 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 11 states
[2020-09-25 10:52:13,957 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 10:52:13,957 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2020-09-25 10:52:13,958 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110
[2020-09-25 10:52:13,958 INFO  L87              Difference]: Start difference. First operand 1231 states and 1392 transitions. Second operand 11 states.
[2020-09-25 10:52:14,790 WARN  L193               SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 10:52:16,198 WARN  L193               SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-25 10:52:16,519 WARN  L193               SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-25 10:52:16,853 WARN  L193               SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 10:52:17,233 WARN  L193               SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-25 10:52:17,554 WARN  L193               SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 10:52:18,397 WARN  L193               SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 10:52:18,681 WARN  L193               SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 10:52:19,116 WARN  L193               SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 10:52:21,191 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 10:52:21,191 INFO  L93              Difference]: Finished difference Result 1630 states and 1983 transitions.
[2020-09-25 10:52:21,192 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. 
[2020-09-25 10:52:21,192 INFO  L78                 Accepts]: Start accepts. Automaton has 11 states. Word has length 166
[2020-09-25 10:52:21,193 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 10:52:21,201 INFO  L225             Difference]: With dead ends: 1630
[2020-09-25 10:52:21,202 INFO  L226             Difference]: Without dead ends: 1627
[2020-09-25 10:52:21,203 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=202, Invalid=500, Unknown=0, NotChecked=0, Total=702
[2020-09-25 10:52:21,205 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1627 states.
[2020-09-25 10:52:21,352 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1627 to 1231.
[2020-09-25 10:52:21,353 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1231 states.
[2020-09-25 10:52:21,358 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1231 states to 1231 states and 1390 transitions.
[2020-09-25 10:52:21,358 INFO  L78                 Accepts]: Start accepts. Automaton has 1231 states and 1390 transitions. Word has length 166
[2020-09-25 10:52:21,359 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 10:52:21,359 INFO  L479      AbstractCegarLoop]: Abstraction has 1231 states and 1390 transitions.
[2020-09-25 10:52:21,359 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 11 states.
[2020-09-25 10:52:21,359 INFO  L276                IsEmpty]: Start isEmpty. Operand 1231 states and 1390 transitions.
[2020-09-25 10:52:21,363 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 205
[2020-09-25 10:52:21,363 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 10:52:21,364 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:52:21,364 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-09-25 10:52:21,364 INFO  L427      AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 10:52:21,364 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 10:52:21,365 INFO  L82        PathProgramCache]: Analyzing trace with hash 515628642, now seen corresponding path program 1 times
[2020-09-25 10:52:21,365 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 10:52:21,365 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1383785213]
[2020-09-25 10:52:21,365 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 10:52:21,413 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:52:21,468 FATAL L256   erpolLogProxyWrapper]: Now shrinking...