/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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --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_productSimulator.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 19:04:19,821 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 19:04:19,826 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 19:04:19,875 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 19:04:19,876 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 19:04:19,887 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 19:04:19,890 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 19:04:19,894 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 19:04:19,897 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 19:04:19,900 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 19:04:19,902 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 19:04:19,903 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 19:04:19,903 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 19:04:19,907 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 19:04:19,910 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 19:04:19,912 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 19:04:19,914 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 19:04:19,915 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 19:04:19,917 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 19:04:19,928 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 19:04:19,930 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 19:04:19,931 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 19:04:19,933 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 19:04:19,934 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 19:04:19,937 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 19:04:19,937 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 19:04:19,937 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 19:04:19,941 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 19:04:19,941 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 19:04:19,942 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 19:04:19,943 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 19:04:19,944 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 19:04:19,945 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 19:04:19,945 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 19:04:19,947 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 19:04:19,947 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 19:04:19,948 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
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[2020-09-24 19:04:19,949 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2020-09-24 19:04:19,953 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 19:04:19,954 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-24 19:04:20,001 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 19:04:20,001 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 19:04:20,003 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 19:04:20,004 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 19:04:20,004 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 19:04:20,004 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 19:04:20,005 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 19:04:20,005 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 19:04:20,005 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 19:04:20,006 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 19:04:20,007 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 19:04:20,007 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 19:04:20,007 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 19:04:20,008 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 19:04:20,008 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 19:04:20,008 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 19:04:20,008 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 19:04:20,009 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 19:04:20,009 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 19:04:20,009 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 19:04:20,009 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 19:04:20,009 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 19:04:20,010 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 19:04:20,010 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 19:04:20,010 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 19:04:20,010 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 19:04:20,010 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 19:04:20,011 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 19:04:20,011 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 19:04:20,011 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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true;
[2020-09-24 19:04:20,485 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 19:04:20,507 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 19:04:20,511 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 19:04:20,514 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 19:04:20,515 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 19:04:20,516 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_productSimulator.cil.c
[2020-09-24 19:04:20,599 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/524af1579/4afa5353c1384222814634dec28b6126/FLAG64d832a8e
[2020-09-24 19:04:21,221 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 19:04:21,223 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_productSimulator.cil.c
[2020-09-24 19:04:21,243 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/524af1579/4afa5353c1384222814634dec28b6126/FLAG64d832a8e
[2020-09-24 19:04:21,474 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/524af1579/4afa5353c1384222814634dec28b6126
[2020-09-24 19:04:21,490 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 19:04:21,497 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 19:04:21,501 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 19:04:21,501 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 19:04:21,506 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 19:04:21,507 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:04:21" (1/1) ...
[2020-09-24 19:04:21,512 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22589b7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:04:21, skipping insertion in model container
[2020-09-24 19:04:21,512 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:04:21" (1/1) ...
[2020-09-24 19:04:21,523 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 19:04:21,600 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 19:04:22,101 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 19:04:22,124 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 19:04:22,334 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 19:04:22,389 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 19:04:22,390 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:04:22 WrapperNode
[2020-09-24 19:04:22,390 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 19:04:22,391 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 19:04:22,391 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 19:04:22,391 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 19:04:22,408 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:04:22" (1/1) ...
[2020-09-24 19:04:22,408 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:04:22" (1/1) ...
[2020-09-24 19:04:22,430 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:04:22" (1/1) ...
[2020-09-24 19:04:22,430 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:04:22" (1/1) ...
[2020-09-24 19:04:22,465 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:04:22" (1/1) ...
[2020-09-24 19:04:22,477 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:04:22" (1/1) ...
[2020-09-24 19:04:22,483 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:04:22" (1/1) ...
[2020-09-24 19:04:22,492 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 19:04:22,492 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 19:04:22,492 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 19:04:22,493 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 19:04:22,494 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:04:22" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 19:04:22,604 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 19:04:22,604 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 19:04:22,605 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 19:04:22,605 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 19:04:22,605 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 19:04:22,605 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__before__highWaterSensor
[2020-09-24 19:04:22,605 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__role__highWaterSensor
[2020-09-24 19:04:22,606 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__before__lowWaterSensor
[2020-09-24 19:04:22,607 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__role__lowWaterSensor
[2020-09-24 19:04:22,607 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__before__methaneAlarm
[2020-09-24 19:04:22,607 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__role__methaneAlarm
[2020-09-24 19:04:22,607 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 19:04:22,608 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__before__methaneQuery
[2020-09-24 19:04:22,608 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__role__methaneQuery
[2020-09-24 19:04:22,608 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 19:04:22,609 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 19:04:22,609 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 19:04:22,610 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 19:04:22,610 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 19:04:22,610 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-09-24 19:04:22,610 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-24 19:04:22,610 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-24 19:04:22,611 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-24 19:04:22,611 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 19:04:22,612 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 19:04:22,613 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 19:04:22,613 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 19:04:22,613 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 19:04:22,613 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 19:04:22,613 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 19:04:22,614 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 19:04:22,614 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 19:04:22,614 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 19:04:22,614 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1
[2020-09-24 19:04:22,615 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 19:04:22,615 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 19:04:22,615 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 19:04:22,615 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 19:04:22,615 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 19:04:22,616 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 19:04:22,618 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-09-24 19:04:22,618 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-24 19:04:22,618 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 19:04:22,618 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 19:04:22,619 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 19:04:22,621 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 19:04:22,621 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 19:04:22,621 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 19:04:22,621 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 19:04:22,622 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 19:04:22,622 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 19:04:22,622 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 19:04:22,623 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 19:04:22,623 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-24 19:04:22,623 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-24 19:04:22,624 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 19:04:22,624 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 19:04:22,624 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 19:04:22,624 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 19:04:22,624 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 19:04:22,625 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 19:04:22,625 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-09-24 19:04:22,625 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-24 19:04:22,625 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 19:04:22,626 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 19:04:22,626 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 19:04:22,626 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 19:04:22,626 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1
[2020-09-24 19:04:22,627 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 19:04:22,627 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__before__highWaterSensor
[2020-09-24 19:04:22,628 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-09-24 19:04:22,629 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__role__highWaterSensor
[2020-09-24 19:04:22,630 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__before__lowWaterSensor
[2020-09-24 19:04:22,630 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-24 19:04:22,631 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__role__lowWaterSensor
[2020-09-24 19:04:22,631 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__before__methaneAlarm
[2020-09-24 19:04:22,631 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 19:04:22,631 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__role__methaneAlarm
[2020-09-24 19:04:22,631 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__before__methaneQuery
[2020-09-24 19:04:22,632 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__role__methaneQuery
[2020-09-24 19:04:22,632 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 19:04:22,632 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 19:04:22,632 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 19:04:22,632 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 19:04:22,632 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 19:04:22,632 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 19:04:22,633 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 19:04:22,633 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 19:04:22,633 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 19:04:22,633 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 19:04:22,633 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 19:04:22,633 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 19:04:22,633 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 19:04:22,634 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 19:04:22,634 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 19:04:22,634 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 19:04:22,634 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 19:04:22,635 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 19:04:22,635 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 19:04:22,635 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 19:04:22,635 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 19:04:22,635 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 19:04:22,636 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 19:04:22,636 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 19:04:22,636 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 19:04:22,636 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 19:04:22,636 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 19:04:22,637 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 19:04:22,637 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 19:04:22,637 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 19:04:23,908 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 19:04:23,908 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 19:04:23,917 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:04:23 BoogieIcfgContainer
[2020-09-24 19:04:23,917 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 19:04:23,919 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 19:04:23,919 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 19:04:23,923 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 19:04:23,923 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:04:21" (1/3) ...
[2020-09-24 19:04:23,924 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@469fb06a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:04:23, skipping insertion in model container
[2020-09-24 19:04:23,925 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:04:22" (2/3) ...
[2020-09-24 19:04:23,925 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@469fb06a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:04:23, skipping insertion in model container
[2020-09-24 19:04:23,925 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:04:23" (3/3) ...
[2020-09-24 19:04:23,928 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec1_productSimulator.cil.c
[2020-09-24 19:04:23,942 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 19:04:23,954 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 19:04:23,978 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 19:04:24,015 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 19:04:24,015 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 19:04:24,015 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 19:04:24,016 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 19:04:24,016 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 19:04:24,016 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 19:04:24,016 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 19:04:24,016 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 19:04:24,051 INFO  L276                IsEmpty]: Start isEmpty. Operand 415 states.
[2020-09-24 19:04:24,072 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 225
[2020-09-24 19:04:24,073 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 19:04:24,074 INFO  L422         BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 19:04:24,075 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 19:04:24,083 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 19:04:24,083 INFO  L82        PathProgramCache]: Analyzing trace with hash -539985006, now seen corresponding path program 1 times
[2020-09-24 19:04:24,096 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 19:04:24,096 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1344934449]
[2020-09-24 19:04:24,096 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 19:04:24,466 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:24,670 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:24,909 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:25,540 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:25,541 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 267
[2020-09-24 19:04:25,541 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 19:04:25,542 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1057
[2020-09-24 19:04:25,545 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:25,545 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:25,546 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 223
[2020-09-24 19:04:25,546 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:25,546 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-24 19:04:26,078 WARN  L193               SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 208
[2020-09-24 19:04:26,083 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 19:04:26,107 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:26,148 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:26,301 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:26,302 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 93
[2020-09-24 19:04:26,302 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:26,302 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 170
[2020-09-24 19:04:26,303 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:26,303 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:26,303 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:26,304 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:26,304 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:04:26,418 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91
[2020-09-24 19:04:26,419 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:26,420 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:26,425 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:26,425 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-24 19:04:26,426 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:26,426 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 19:04:26,426 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:26,426 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:26,426 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:26,427 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:26,427 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:04:26,454 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95
[2020-09-24 19:04:26,463 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:26,472 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:26,514 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:26,514 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 93
[2020-09-24 19:04:26,515 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:26,515 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 50
[2020-09-24 19:04:26,515 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:26,515 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:26,516 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:26,516 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:26,516 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:04:26,528 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2020-09-24 19:04:26,529 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:26,531 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:26,533 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:26,533 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 19:04:26,534 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:26,534 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 19:04:26,534 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:26,534 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:26,535 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:26,535 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:26,535 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:04:26,539 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13
[2020-09-24 19:04:26,540 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:26,543 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:26,546 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:26,546 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 19:04:26,546 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:26,546 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 19:04:26,547 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:26,547 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:26,547 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:26,547 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:26,547 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:04:26,552 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25
[2020-09-24 19:04:26,554 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:26,557 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:26,559 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:26,560 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 19:04:26,560 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:26,560 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 19:04:26,561 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:26,561 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:26,561 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:26,562 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:26,562 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:04:26,574 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2020-09-24 19:04:26,580 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:26,583 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:26,589 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:26,589 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 19:04:26,590 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:26,590 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 19:04:26,590 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:26,591 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:26,591 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:26,592 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:26,592 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:04:26,599 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49
[2020-09-24 19:04:26,601 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:26,603 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:26,605 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:26,606 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 19:04:26,606 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:26,607 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 19:04:26,607 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:26,607 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:26,607 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:26,608 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:26,608 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:04:26,610 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61
[2020-09-24 19:04:26,611 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:26,613 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:26,618 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:26,619 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 19:04:26,620 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:26,620 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 19:04:26,620 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:26,621 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:26,621 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:26,621 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:26,621 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:04:26,629 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171
[2020-09-24 19:04:26,631 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:26,633 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:26,635 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:26,635 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 19:04:26,635 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:26,644 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 19:04:26,645 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:26,645 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:26,645 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:26,646 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:26,646 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:04:26,648 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181
[2020-09-24 19:04:26,648 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:26,651 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:26,653 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:26,653 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 19:04:26,653 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:26,654 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 19:04:26,654 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:26,654 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:26,654 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:26,655 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:26,655 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:04:26,656 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202
[2020-09-24 19:04:26,657 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:26,660 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:26,662 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:26,662 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 19:04:26,662 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:26,663 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 19:04:26,663 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:26,663 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:26,663 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 19:04:26,664 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:26,664 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:04:26,665 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212
[2020-09-24 19:04:26,666 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:26,668 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:26,671 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:26,671 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 19:04:26,672 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:26,672 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 19:04:26,672 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:26,672 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:26,672 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 19:04:26,673 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:26,673 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:04:26,766 INFO  L134       CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked.
[2020-09-24 19:04:26,767 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1344934449]
[2020-09-24 19:04:26,770 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 19:04:26,770 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-24 19:04:26,771 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282922174]
[2020-09-24 19:04:26,782 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-24 19:04:26,782 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 19:04:26,803 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-24 19:04:26,804 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-09-24 19:04:26,807 INFO  L87              Difference]: Start difference. First operand 415 states. Second operand 5 states.
[2020-09-24 19:04:29,453 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 19:04:29,454 INFO  L93              Difference]: Finished difference Result 666 states and 807 transitions.
[2020-09-24 19:04:29,455 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2020-09-24 19:04:29,456 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 224
[2020-09-24 19:04:29,458 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 19:04:29,479 INFO  L225             Difference]: With dead ends: 666
[2020-09-24 19:04:29,479 INFO  L226             Difference]: Without dead ends: 422
[2020-09-24 19:04:29,485 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30
[2020-09-24 19:04:29,508 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 422 states.
[2020-09-24 19:04:29,621 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 364.
[2020-09-24 19:04:29,623 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 364 states.
[2020-09-24 19:04:29,626 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 410 transitions.
[2020-09-24 19:04:29,629 INFO  L78                 Accepts]: Start accepts. Automaton has 364 states and 410 transitions. Word has length 224
[2020-09-24 19:04:29,630 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 19:04:29,630 INFO  L479      AbstractCegarLoop]: Abstraction has 364 states and 410 transitions.
[2020-09-24 19:04:29,631 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-24 19:04:29,631 INFO  L276                IsEmpty]: Start isEmpty. Operand 364 states and 410 transitions.
[2020-09-24 19:04:29,637 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 226
[2020-09-24 19:04:29,637 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 19:04:29,638 INFO  L422         BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 19:04:29,638 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 19:04:29,638 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 19:04:29,639 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 19:04:29,639 INFO  L82        PathProgramCache]: Analyzing trace with hash 1802220362, now seen corresponding path program 1 times
[2020-09-24 19:04:29,639 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 19:04:29,640 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1677885846]
[2020-09-24 19:04:29,640 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 19:04:29,739 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:29,811 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:29,931 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:30,744 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:30,745 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 268
[2020-09-24 19:04:30,745 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 19:04:30,745 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1001
[2020-09-24 19:04:30,745 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:30,745 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 19:04:30,746 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 222
[2020-09-24 19:04:30,746 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 3
[2020-09-24 19:04:30,746 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:04:31,134 WARN  L193               SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 208
[2020-09-24 19:04:31,136 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 19:04:31,182 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:31,192 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:31,305 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:31,305 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 93
[2020-09-24 19:04:31,305 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:31,305 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 121
[2020-09-24 19:04:31,306 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:31,306 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:31,306 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:31,306 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:31,306 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:04:31,356 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91
[2020-09-24 19:04:31,357 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:31,358 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:31,361 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:31,362 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-24 19:04:31,362 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:31,362 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 19:04:31,362 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:31,365 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:31,366 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:31,366 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:31,366 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-24 19:04:31,388 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95
[2020-09-24 19:04:31,392 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:31,397 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:31,429 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:31,430 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 93
[2020-09-24 19:04:31,430 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:31,430 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 36
[2020-09-24 19:04:31,430 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:31,431 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:31,431 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:31,431 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:31,432 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:04:31,442 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2020-09-24 19:04:31,443 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:31,444 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:31,446 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:31,446 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 19:04:31,446 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:31,447 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 19:04:31,447 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:31,447 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:31,447 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:31,448 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:31,448 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:04:31,449 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13
[2020-09-24 19:04:31,450 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:31,452 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:31,453 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:31,454 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 19:04:31,454 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:31,454 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 19:04:31,455 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:31,455 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:31,455 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:31,456 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:31,456 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:04:31,458 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25
[2020-09-24 19:04:31,459 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:31,461 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:31,463 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:31,463 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 19:04:31,464 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:31,464 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 19:04:31,464 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:31,465 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:31,465 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:31,465 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:31,466 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:04:31,468 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2020-09-24 19:04:31,469 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:31,470 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:31,472 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:31,473 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 19:04:31,473 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:31,473 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 19:04:31,474 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:31,474 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:31,474 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:31,474 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:31,475 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:04:31,477 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49
[2020-09-24 19:04:31,478 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:31,480 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:31,482 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:31,483 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 19:04:31,483 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:31,483 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 19:04:31,484 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:31,484 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:31,484 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:31,485 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:31,485 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:04:31,487 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61
[2020-09-24 19:04:31,488 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:31,489 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:31,491 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:31,491 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 19:04:31,492 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:31,492 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 19:04:31,492 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:31,493 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:31,493 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:31,493 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:31,493 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:04:31,501 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171
[2020-09-24 19:04:31,502 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:31,503 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:31,506 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:31,506 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 19:04:31,507 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:31,507 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 19:04:31,507 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:31,507 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:31,508 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:31,508 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:31,508 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:04:31,509 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181
[2020-09-24 19:04:31,510 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:31,511 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:31,523 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:31,523 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 19:04:31,524 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:31,524 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 12
[2020-09-24 19:04:31,524 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:31,524 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:31,524 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:31,526 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:31,526 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:04:31,527 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203
[2020-09-24 19:04:31,528 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:31,529 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:31,531 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:31,531 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 19:04:31,531 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:31,532 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 19:04:31,532 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:31,532 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:31,532 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 19:04:31,532 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:31,533 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:04:31,534 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213
[2020-09-24 19:04:31,535 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:31,536 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:31,537 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:31,538 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 19:04:31,538 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:31,538 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 19:04:31,538 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:31,538 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:31,539 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 19:04:31,539 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:31,540 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:04:31,589 INFO  L134       CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked.
[2020-09-24 19:04:31,589 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1677885846]
[2020-09-24 19:04:31,590 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 19:04:31,590 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-09-24 19:04:31,590 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455237455]
[2020-09-24 19:04:31,593 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-24 19:04:31,594 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 19:04:31,594 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-24 19:04:31,594 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-24 19:04:31,594 INFO  L87              Difference]: Start difference. First operand 364 states and 410 transitions. Second operand 6 states.
[2020-09-24 19:04:32,650 WARN  L193               SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 211
[2020-09-24 19:04:34,849 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 19:04:34,849 INFO  L93              Difference]: Finished difference Result 575 states and 670 transitions.
[2020-09-24 19:04:34,850 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2020-09-24 19:04:34,850 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 225
[2020-09-24 19:04:34,851 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 19:04:34,858 INFO  L225             Difference]: With dead ends: 575
[2020-09-24 19:04:34,858 INFO  L226             Difference]: Without dead ends: 405
[2020-09-24 19:04:34,861 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72
[2020-09-24 19:04:34,864 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 405 states.
[2020-09-24 19:04:34,933 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 354.
[2020-09-24 19:04:34,933 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 354 states.
[2020-09-24 19:04:34,936 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 397 transitions.
[2020-09-24 19:04:34,936 INFO  L78                 Accepts]: Start accepts. Automaton has 354 states and 397 transitions. Word has length 225
[2020-09-24 19:04:34,937 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 19:04:34,937 INFO  L479      AbstractCegarLoop]: Abstraction has 354 states and 397 transitions.
[2020-09-24 19:04:34,937 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-09-24 19:04:34,937 INFO  L276                IsEmpty]: Start isEmpty. Operand 354 states and 397 transitions.
[2020-09-24 19:04:34,941 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 236
[2020-09-24 19:04:34,941 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 19:04:34,941 INFO  L422         BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 19:04:34,942 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 19:04:34,942 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 19:04:34,942 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 19:04:34,942 INFO  L82        PathProgramCache]: Analyzing trace with hash -1784223748, now seen corresponding path program 1 times
[2020-09-24 19:04:34,943 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 19:04:34,943 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1599469382]
[2020-09-24 19:04:34,943 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 19:04:35,005 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:35,074 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:35,961 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:36,050 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:36,051 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 276
[2020-09-24 19:04:36,051 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 19:04:36,051 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1041
[2020-09-24 19:04:36,052 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:36,052 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-24 19:04:36,052 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 241
[2020-09-24 19:04:36,052 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 31
[2020-09-24 19:04:36,052 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:04:36,479 WARN  L193               SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 208
[2020-09-24 19:04:36,480 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 19:04:36,496 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:36,510 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:36,618 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:36,618 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 93
[2020-09-24 19:04:36,618 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:36,619 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 121
[2020-09-24 19:04:36,619 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:36,619 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:36,619 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:36,619 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:36,620 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:04:36,666 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91
[2020-09-24 19:04:36,667 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:36,668 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:36,670 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:36,670 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-24 19:04:36,670 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:36,671 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 19:04:36,671 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:36,671 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:36,671 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:36,671 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:36,671 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:04:36,694 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95
[2020-09-24 19:04:36,696 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:36,701 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:36,726 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:36,726 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 93
[2020-09-24 19:04:36,726 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:36,726 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 28
[2020-09-24 19:04:36,726 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:36,727 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:36,727 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:36,727 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:36,727 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:04:36,735 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2020-09-24 19:04:36,736 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:36,738 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:36,739 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:36,739 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 19:04:36,739 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:36,740 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 19:04:36,740 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:36,740 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:36,740 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:36,740 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:36,741 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:04:36,742 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13
[2020-09-24 19:04:36,743 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:36,744 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:36,746 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:36,746 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 19:04:36,746 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:36,747 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 19:04:36,747 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:36,747 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:36,747 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:36,748 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:36,748 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:04:36,749 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25
[2020-09-24 19:04:36,750 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:36,752 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:36,754 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:36,754 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 19:04:36,754 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:36,754 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 19:04:36,755 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:36,755 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:36,755 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:36,755 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:36,756 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:04:36,757 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2020-09-24 19:04:36,758 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:36,759 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:36,761 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:36,762 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 19:04:36,762 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:36,762 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 19:04:36,762 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:36,763 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:36,763 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:36,763 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:36,763 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:04:36,765 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49
[2020-09-24 19:04:36,765 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:36,767 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:36,768 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:36,768 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 19:04:36,768 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:36,769 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 19:04:36,769 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:36,769 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:36,769 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:36,769 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:36,770 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:04:36,772 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61
[2020-09-24 19:04:36,772 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:36,774 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:36,775 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:36,776 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 19:04:36,776 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:36,776 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 19:04:36,776 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:36,777 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:36,777 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:36,777 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:36,777 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:04:36,783 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171
[2020-09-24 19:04:36,784 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:36,785 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:36,786 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:36,787 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 19:04:36,787 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:36,787 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 19:04:36,787 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:36,788 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:36,788 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:36,788 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:36,788 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:04:36,790 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181
[2020-09-24 19:04:36,790 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:36,791 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:36,793 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:36,793 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 19:04:36,793 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:36,793 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 19:04:36,793 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:36,794 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:36,794 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:36,794 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:36,794 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:04:36,795 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213
[2020-09-24 19:04:36,796 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:36,798 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:36,802 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:36,803 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 19:04:36,803 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:36,803 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 19:04:36,803 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:36,803 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 19:04:36,803 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:36,804 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 19:04:36,804 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:04:36,806 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223
[2020-09-24 19:04:36,807 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:36,809 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:36,822 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:36,822 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 19:04:36,822 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:36,823 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 14
[2020-09-24 19:04:36,823 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:36,824 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 19:04:36,825 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:36,825 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 19:04:36,825 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-24 19:04:36,954 INFO  L134       CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked.
[2020-09-24 19:04:36,955 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1599469382]
[2020-09-24 19:04:36,956 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 19:04:36,956 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2020-09-24 19:04:36,956 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725728829]
[2020-09-24 19:04:36,957 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 10 states
[2020-09-24 19:04:36,958 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 19:04:36,958 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2020-09-24 19:04:36,960 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90
[2020-09-24 19:04:36,960 INFO  L87              Difference]: Start difference. First operand 354 states and 397 transitions. Second operand 10 states.
[2020-09-24 19:04:37,619 WARN  L193               SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 210
[2020-09-24 19:04:39,576 WARN  L193               SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 212
[2020-09-24 19:04:40,289 WARN  L193               SmtUtils]: Spent 673.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 214
[2020-09-24 19:04:40,708 WARN  L193               SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 212
[2020-09-24 19:04:41,121 WARN  L193               SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 215
[2020-09-24 19:04:41,525 WARN  L193               SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 213
[2020-09-24 19:04:42,385 WARN  L193               SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 210
[2020-09-24 19:04:42,754 WARN  L193               SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 215
[2020-09-24 19:04:43,194 WARN  L193               SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 212
[2020-09-24 19:04:45,489 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 19:04:45,489 INFO  L93              Difference]: Finished difference Result 729 states and 892 transitions.
[2020-09-24 19:04:45,490 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. 
[2020-09-24 19:04:45,490 INFO  L78                 Accepts]: Start accepts. Automaton has 10 states. Word has length 235
[2020-09-24 19:04:45,491 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 19:04:45,496 INFO  L225             Difference]: With dead ends: 729
[2020-09-24 19:04:45,496 INFO  L226             Difference]: Without dead ends: 527
[2020-09-24 19:04:45,498 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506
[2020-09-24 19:04:45,499 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 527 states.
[2020-09-24 19:04:45,571 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 493.
[2020-09-24 19:04:45,571 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 493 states.
[2020-09-24 19:04:45,575 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 578 transitions.
[2020-09-24 19:04:45,575 INFO  L78                 Accepts]: Start accepts. Automaton has 493 states and 578 transitions. Word has length 235
[2020-09-24 19:04:45,576 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 19:04:45,576 INFO  L479      AbstractCegarLoop]: Abstraction has 493 states and 578 transitions.
[2020-09-24 19:04:45,576 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 10 states.
[2020-09-24 19:04:45,576 INFO  L276                IsEmpty]: Start isEmpty. Operand 493 states and 578 transitions.
[2020-09-24 19:04:45,581 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 285
[2020-09-24 19:04:45,581 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 19:04:45,582 INFO  L422         BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 19:04:45,582 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 19:04:45,582 INFO  L427      AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 19:04:45,583 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 19:04:45,583 INFO  L82        PathProgramCache]: Analyzing trace with hash -1977584448, now seen corresponding path program 1 times
[2020-09-24 19:04:45,583 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 19:04:45,583 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [903857000]
[2020-09-24 19:04:45,584 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 19:04:45,663 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:45,758 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:46,012 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:46,541 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:46,691 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:46,691 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 341
[2020-09-24 19:04:46,691 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 19:04:46,692 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1023
[2020-09-24 19:04:46,692 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:46,692 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 19:04:46,692 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 271
[2020-09-24 19:04:46,692 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-24 19:04:46,692 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:04:47,098 WARN  L193               SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 208
[2020-09-24 19:04:47,100 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 19:04:47,112 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:47,124 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:47,244 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:47,245 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 93
[2020-09-24 19:04:47,245 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:47,245 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 131
[2020-09-24 19:04:47,246 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:47,246 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:47,246 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:47,246 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:47,246 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:04:47,309 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91
[2020-09-24 19:04:47,311 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:47,312 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:47,317 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:47,317 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-24 19:04:47,318 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:47,318 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 19:04:47,318 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:47,319 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:47,319 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:47,319 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:47,320 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:04:47,343 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95
[2020-09-24 19:04:47,347 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:47,354 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:47,382 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:47,382 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 93
[2020-09-24 19:04:47,383 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:47,383 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 34
[2020-09-24 19:04:47,383 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:47,384 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:47,384 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:47,384 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:47,385 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:04:47,396 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2020-09-24 19:04:47,397 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:47,398 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:47,401 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:47,401 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 19:04:47,401 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:47,402 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 19:04:47,402 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:47,402 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:47,403 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:47,403 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:47,403 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:04:47,405 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13
[2020-09-24 19:04:47,406 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:47,407 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:47,409 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:47,409 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 19:04:47,409 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:47,409 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 19:04:47,410 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:47,410 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:47,410 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:47,411 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:47,411 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:04:47,413 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25
[2020-09-24 19:04:47,414 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:47,415 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:47,418 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:47,418 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 19:04:47,419 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:47,419 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 19:04:47,419 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:47,420 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:47,420 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:47,420 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:47,421 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:04:47,423 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2020-09-24 19:04:47,424 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:47,425 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:47,429 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:47,430 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 19:04:47,430 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:47,430 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 19:04:47,431 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:47,431 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:47,431 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:47,432 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:47,432 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:04:47,434 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49
[2020-09-24 19:04:47,435 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:47,437 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:47,439 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:47,439 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 19:04:47,439 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:47,440 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 19:04:47,440 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:47,440 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:47,441 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:47,441 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:47,441 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:04:47,443 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61
[2020-09-24 19:04:47,444 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:47,446 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:47,448 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:47,449 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 19:04:47,449 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:47,449 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 19:04:47,450 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:47,450 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:47,450 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:47,451 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:47,451 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:04:47,460 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171
[2020-09-24 19:04:47,462 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:47,463 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:47,465 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:47,465 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 19:04:47,465 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:47,466 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 19:04:47,466 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:47,466 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:47,467 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:47,467 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:47,467 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:04:47,469 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181
[2020-09-24 19:04:47,470 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:47,471 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:47,473 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:47,473 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 19:04:47,473 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:47,474 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 19:04:47,474 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:47,474 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:47,475 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:47,475 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:47,475 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:04:47,488 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210
[2020-09-24 19:04:47,493 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:47,501 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:47,518 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:47,986 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:47,987 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 68
[2020-09-24 19:04:47,987 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 19:04:47,987 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 492
[2020-09-24 19:04:47,987 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:47,987 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 19:04:47,988 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 28
[2020-09-24 19:04:47,988 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-24 19:04:47,988 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:04:47,994 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2020-09-24 19:04:47,998 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:48,003 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:48,016 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:48,394 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:48,394 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 62
[2020-09-24 19:04:48,395 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 19:04:48,395 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 395
[2020-09-24 19:04:48,395 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:48,396 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 19:04:48,396 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 24
[2020-09-24 19:04:48,396 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-24 19:04:48,397 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:04:48,401 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2020-09-24 19:04:48,405 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:48,411 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:48,427 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:48,743 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:48,744 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 56
[2020-09-24 19:04:48,744 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 19:04:48,744 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 336
[2020-09-24 19:04:48,745 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:48,745 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 19:04:48,745 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 20
[2020-09-24 19:04:48,745 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-24 19:04:48,745 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:04:48,749 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2020-09-24 19:04:48,753 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:48,757 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:48,769 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:49,046 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:49,046 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 50
[2020-09-24 19:04:49,046 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 19:04:49,047 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 292
[2020-09-24 19:04:49,047 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:49,047 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 19:04:49,047 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 16
[2020-09-24 19:04:49,048 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-24 19:04:49,048 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:04:49,052 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:04:49,055 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:49,059 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:49,087 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:49,087 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 27
[2020-09-24 19:04:49,088 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:49,088 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 31
[2020-09-24 19:04:49,089 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:49,089 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 19:04:49,089 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 11
[2020-09-24 19:04:49,090 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-24 19:04:49,090 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:04:49,113 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-24 19:04:49,115 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:49,117 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:49,130 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:49,130 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 19:04:49,131 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:49,131 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 14
[2020-09-24 19:04:49,131 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:49,131 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-24 19:04:49,131 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:49,132 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 19:04:49,132 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:04:49,157 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26
[2020-09-24 19:04:49,158 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:49,160 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:49,164 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:49,164 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-24 19:04:49,164 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:49,165 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 19:04:49,165 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:49,165 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:49,165 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 12
[2020-09-24 19:04:49,166 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:49,166 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:04:49,168 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2020-09-24 19:04:49,169 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:49,170 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:49,172 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:49,172 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-24 19:04:49,172 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:49,173 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 19:04:49,173 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:49,173 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:49,174 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:49,174 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:49,174 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:04:49,181 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262
[2020-09-24 19:04:49,182 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:49,185 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:49,186 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:49,186 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 19:04:49,187 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:49,187 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 19:04:49,187 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:49,187 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:49,187 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 19:04:49,188 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:49,188 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:04:49,189 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272
[2020-09-24 19:04:49,191 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:49,192 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:49,195 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:49,195 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 19:04:49,195 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:49,195 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 19:04:49,196 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:49,196 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:49,196 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 19:04:49,196 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:49,196 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:04:49,397 INFO  L134       CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked.
[2020-09-24 19:04:49,398 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [903857000]
[2020-09-24 19:04:49,398 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 19:04:49,398 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2020-09-24 19:04:49,399 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678157043]
[2020-09-24 19:04:49,400 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 10 states
[2020-09-24 19:04:49,401 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 19:04:49,401 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2020-09-24 19:04:49,402 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90
[2020-09-24 19:04:49,403 INFO  L87              Difference]: Start difference. First operand 493 states and 578 transitions. Second operand 10 states.
[2020-09-24 19:04:51,629 WARN  L193               SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 211
[2020-09-24 19:04:51,987 WARN  L193               SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 213
[2020-09-24 19:04:52,426 WARN  L193               SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 211
[2020-09-24 19:04:52,833 WARN  L193               SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 213
[2020-09-24 19:04:53,193 WARN  L193               SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 211
[2020-09-24 19:04:54,976 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 19:04:54,977 INFO  L93              Difference]: Finished difference Result 907 states and 1145 transitions.
[2020-09-24 19:04:54,977 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2020-09-24 19:04:54,978 INFO  L78                 Accepts]: Start accepts. Automaton has 10 states. Word has length 284
[2020-09-24 19:04:54,978 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 19:04:54,985 INFO  L225             Difference]: With dead ends: 907
[2020-09-24 19:04:54,985 INFO  L226             Difference]: Without dead ends: 566
[2020-09-24 19:04:54,987 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342
[2020-09-24 19:04:54,989 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 566 states.
[2020-09-24 19:04:55,131 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 502.
[2020-09-24 19:04:55,132 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 502 states.
[2020-09-24 19:04:55,135 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 587 transitions.
[2020-09-24 19:04:55,136 INFO  L78                 Accepts]: Start accepts. Automaton has 502 states and 587 transitions. Word has length 284
[2020-09-24 19:04:55,137 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 19:04:55,137 INFO  L479      AbstractCegarLoop]: Abstraction has 502 states and 587 transitions.
[2020-09-24 19:04:55,137 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 10 states.
[2020-09-24 19:04:55,137 INFO  L276                IsEmpty]: Start isEmpty. Operand 502 states and 587 transitions.
[2020-09-24 19:04:55,144 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 285
[2020-09-24 19:04:55,144 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 19:04:55,144 INFO  L422         BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 19:04:55,144 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-09-24 19:04:55,145 INFO  L427      AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 19:04:55,145 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 19:04:55,145 INFO  L82        PathProgramCache]: Analyzing trace with hash 700366944, now seen corresponding path program 1 times
[2020-09-24 19:04:55,145 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 19:04:55,146 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1371015267]
[2020-09-24 19:04:55,146 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 19:04:55,220 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:55,294 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:56,211 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:56,320 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:56,320 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 341
[2020-09-24 19:04:56,321 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 19:04:56,321 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1095
[2020-09-24 19:04:56,321 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:56,321 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 10
[2020-09-24 19:04:56,321 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 88
[2020-09-24 19:04:56,322 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 183
[2020-09-24 19:04:56,322 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:04:56,792 WARN  L193               SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 208
[2020-09-24 19:04:56,794 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 19:04:56,841 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:56,882 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:57,131 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:57,131 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 93
[2020-09-24 19:04:57,131 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:57,132 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 288
[2020-09-24 19:04:57,132 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:57,133 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 19:04:57,133 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:57,133 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 84
[2020-09-24 19:04:57,134 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:04:57,210 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91
[2020-09-24 19:04:57,211 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:57,213 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:57,218 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:57,218 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-24 19:04:57,219 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:57,219 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 19:04:57,219 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:57,220 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 19:04:57,220 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:57,220 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-09-24 19:04:57,220 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:04:57,251 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95
[2020-09-24 19:04:57,262 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:57,276 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:57,348 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:57,348 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 93
[2020-09-24 19:04:57,349 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:57,349 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 85
[2020-09-24 19:04:57,349 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:57,349 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 19:04:57,350 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:57,350 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 89
[2020-09-24 19:04:57,350 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:04:57,360 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2020-09-24 19:04:57,361 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:57,362 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:57,364 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:57,365 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 19:04:57,365 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:57,365 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 19:04:57,366 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:57,366 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:57,366 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:57,367 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:57,369 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:04:57,372 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13
[2020-09-24 19:04:57,373 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:57,374 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:57,378 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:57,378 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 19:04:57,379 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:57,379 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 19:04:57,379 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:57,380 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:57,380 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:57,381 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:57,381 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:04:57,383 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25
[2020-09-24 19:04:57,384 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:57,386 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:57,388 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:57,388 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 19:04:57,388 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:57,389 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 19:04:57,389 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:57,389 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:57,390 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:57,390 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:57,390 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:04:57,393 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2020-09-24 19:04:57,394 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:57,395 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:57,400 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:57,400 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 19:04:57,400 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:57,401 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 19:04:57,401 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:57,401 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:57,402 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:57,402 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:57,403 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:04:57,405 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49
[2020-09-24 19:04:57,406 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:57,408 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:57,410 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:57,410 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 19:04:57,411 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:57,411 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 19:04:57,412 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:57,412 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:57,412 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:57,413 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:57,413 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:04:57,415 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61
[2020-09-24 19:04:57,416 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:57,418 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:57,420 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:57,420 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 19:04:57,420 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:57,421 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 19:04:57,421 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:57,421 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:57,422 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:57,422 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:57,422 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:04:57,431 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171
[2020-09-24 19:04:57,433 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:57,434 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:57,438 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:57,438 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 19:04:57,438 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:57,439 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 19:04:57,439 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:57,439 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 19:04:57,440 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:57,440 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 19:04:57,440 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:04:57,443 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181
[2020-09-24 19:04:57,444 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:57,445 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:57,448 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:57,449 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 19:04:57,449 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:57,449 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 19:04:57,450 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:57,450 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 19:04:57,450 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:57,451 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 19:04:57,451 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:04:57,464 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210
[2020-09-24 19:04:57,469 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:57,478 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:57,512 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:57,512 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 68
[2020-09-24 19:04:57,512 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:57,513 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 41
[2020-09-24 19:04:57,513 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:57,514 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 19:04:57,514 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 27
[2020-09-24 19:04:57,514 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 39
[2020-09-24 19:04:57,515 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:04:57,538 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2020-09-24 19:04:57,542 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:57,548 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:57,576 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:57,576 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 62
[2020-09-24 19:04:57,577 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:57,577 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 31
[2020-09-24 19:04:57,577 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:57,578 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 19:04:57,578 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:57,578 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 22
[2020-09-24 19:04:57,579 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:04:57,600 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2020-09-24 19:04:57,606 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:57,611 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:57,640 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:57,640 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 56
[2020-09-24 19:04:57,640 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:57,641 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 32
[2020-09-24 19:04:57,641 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:57,642 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 19:04:57,642 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:57,642 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 18
[2020-09-24 19:04:57,643 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:04:57,663 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2020-09-24 19:04:57,667 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:57,672 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:57,696 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:57,697 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 50
[2020-09-24 19:04:57,697 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:57,697 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 27
[2020-09-24 19:04:57,698 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:57,698 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 19:04:57,699 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:57,699 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 14
[2020-09-24 19:04:57,699 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:04:57,720 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:04:57,723 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:57,726 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:57,741 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:57,741 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 27
[2020-09-24 19:04:57,742 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:57,742 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 17
[2020-09-24 19:04:57,742 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:57,743 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 19:04:57,743 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:57,744 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-24 19:04:57,744 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:04:57,765 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-24 19:04:57,767 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:57,768 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:57,772 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:57,773 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 19:04:57,773 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:57,773 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 19:04:57,774 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:57,774 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 19:04:57,775 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:57,775 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 3
[2020-09-24 19:04:57,775 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:04:57,790 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26
[2020-09-24 19:04:57,792 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:57,794 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:57,806 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:57,806 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-24 19:04:57,807 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:57,807 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 13
[2020-09-24 19:04:57,808 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:57,808 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 19:04:57,809 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:57,809 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 11
[2020-09-24 19:04:57,810 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-24 19:04:57,813 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2020-09-24 19:04:57,816 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:57,820 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:57,823 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:57,823 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-24 19:04:57,824 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:57,824 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 19:04:57,824 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:57,825 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:57,825 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:04:57,826 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:57,826 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:04:57,845 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262
[2020-09-24 19:04:57,848 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:57,850 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:57,852 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:57,852 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 19:04:57,853 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:57,853 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 19:04:57,853 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:57,854 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:57,854 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 19:04:57,854 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:57,855 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:04:57,858 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272
[2020-09-24 19:04:57,864 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:04:57,865 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:04:57,867 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:04:57,868 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 19:04:57,868 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:04:57,868 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 19:04:57,869 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:04:57,869 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:04:57,869 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 19:04:57,870 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:04:57,870 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:04:58,012 INFO  L134       CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked.
[2020-09-24 19:04:58,013 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1371015267]
[2020-09-24 19:04:58,013 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 19:04:58,014 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-24 19:04:58,014 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815195624]
[2020-09-24 19:04:58,015 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-24 19:04:58,016 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 19:04:58,016 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-24 19:04:58,018 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2020-09-24 19:04:58,018 INFO  L87              Difference]: Start difference. First operand 502 states and 587 transitions. Second operand 8 states.
[2020-09-24 19:04:58,706 WARN  L193               SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 210
[2020-09-24 19:04:59,775 WARN  L193               SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 210
[2020-09-24 19:05:05,362 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 19:05:05,363 INFO  L93              Difference]: Finished difference Result 1423 states and 1824 transitions.
[2020-09-24 19:05:05,364 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. 
[2020-09-24 19:05:05,365 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 284
[2020-09-24 19:05:05,365 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 19:05:05,380 INFO  L225             Difference]: With dead ends: 1423
[2020-09-24 19:05:05,380 INFO  L226             Difference]: Without dead ends: 1073
[2020-09-24 19:05:05,385 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 51 SyntacticMatches, 5 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380
[2020-09-24 19:05:05,387 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1073 states.
[2020-09-24 19:05:05,574 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 985.
[2020-09-24 19:05:05,574 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 985 states.
[2020-09-24 19:05:05,581 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 1197 transitions.
[2020-09-24 19:05:05,581 INFO  L78                 Accepts]: Start accepts. Automaton has 985 states and 1197 transitions. Word has length 284
[2020-09-24 19:05:05,582 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 19:05:05,582 INFO  L479      AbstractCegarLoop]: Abstraction has 985 states and 1197 transitions.
[2020-09-24 19:05:05,582 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-24 19:05:05,582 INFO  L276                IsEmpty]: Start isEmpty. Operand 985 states and 1197 transitions.
[2020-09-24 19:05:05,587 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 285
[2020-09-24 19:05:05,588 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 19:05:05,588 INFO  L422         BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 19:05:05,588 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-09-24 19:05:05,588 INFO  L427      AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 19:05:05,589 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 19:05:05,589 INFO  L82        PathProgramCache]: Analyzing trace with hash 1081847325, now seen corresponding path program 1 times
[2020-09-24 19:05:05,589 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 19:05:05,590 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1913203404]
[2020-09-24 19:05:05,590 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 19:05:05,654 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:05:05,731 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:05:06,303 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:05:06,661 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:05:06,662 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 341
[2020-09-24 19:05:06,662 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 19:05:06,662 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1003
[2020-09-24 19:05:06,662 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:05:06,663 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-24 19:05:06,663 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 279
[2020-09-24 19:05:06,663 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-24 19:05:06,663 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:05:06,989 WARN  L193               SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 208
[2020-09-24 19:05:06,991 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 19:05:07,001 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:05:07,012 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:05:07,121 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:05:07,121 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 93
[2020-09-24 19:05:07,122 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:05:07,122 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 119
[2020-09-24 19:05:07,122 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:05:07,123 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:05:07,123 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:05:07,123 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:05:07,124 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:05:07,178 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91
[2020-09-24 19:05:07,179 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:05:07,180 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:05:07,183 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:05:07,183 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-24 19:05:07,184 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:05:07,184 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 19:05:07,184 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:05:07,185 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:05:07,185 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:05:07,185 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:05:07,186 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:05:07,216 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95
[2020-09-24 19:05:07,219 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:05:07,225 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:05:07,250 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:05:07,251 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 93
[2020-09-24 19:05:07,251 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:05:07,251 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 30
[2020-09-24 19:05:07,251 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:05:07,252 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:05:07,252 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:05:07,252 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:05:07,252 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:05:07,260 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2020-09-24 19:05:07,261 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:05:07,263 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:05:07,265 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:05:07,265 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 19:05:07,265 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:05:07,266 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 19:05:07,266 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:05:07,266 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:05:07,267 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:05:07,267 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:05:07,267 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:05:07,270 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13
[2020-09-24 19:05:07,272 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:05:07,273 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:05:07,275 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:05:07,275 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 19:05:07,276 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:05:07,276 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 19:05:07,276 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:05:07,277 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:05:07,277 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:05:07,277 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:05:07,278 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:05:07,280 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25
[2020-09-24 19:05:07,281 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:05:07,282 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:05:07,284 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:05:07,285 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 19:05:07,285 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:05:07,285 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 19:05:07,285 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:05:07,286 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:05:07,286 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:05:07,286 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:05:07,286 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:05:07,288 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2020-09-24 19:05:07,289 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:05:07,290 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:05:07,292 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:05:07,292 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 19:05:07,292 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:05:07,292 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 19:05:07,292 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:05:07,293 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:05:07,293 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:05:07,293 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:05:07,293 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:05:07,295 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49
[2020-09-24 19:05:07,296 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:05:07,297 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:05:07,299 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:05:07,300 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 19:05:07,300 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:05:07,300 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 19:05:07,301 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:05:07,301 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:05:07,301 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:05:07,302 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:05:07,302 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:05:07,306 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61
[2020-09-24 19:05:07,307 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:05:07,308 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:05:07,310 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:05:07,310 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 19:05:07,311 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:05:07,311 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 19:05:07,311 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:05:07,312 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:05:07,312 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:05:07,312 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:05:07,313 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:05:07,321 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171
[2020-09-24 19:05:07,322 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:05:07,323 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:05:07,325 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:05:07,325 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 19:05:07,325 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:05:07,326 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 19:05:07,326 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:05:07,326 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:05:07,326 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:05:07,326 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:05:07,327 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:05:07,328 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181
[2020-09-24 19:05:07,329 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:05:07,330 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:05:07,331 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:05:07,331 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 19:05:07,331 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:05:07,332 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 19:05:07,332 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:05:07,333 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:05:07,333 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:05:07,333 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:05:07,333 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:05:07,344 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210
[2020-09-24 19:05:07,348 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:05:07,355 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:05:07,440 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:05:07,441 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 68
[2020-09-24 19:05:07,441 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:05:07,441 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 91
[2020-09-24 19:05:07,441 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:05:07,442 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-24 19:05:07,442 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 36
[2020-09-24 19:05:07,442 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-24 19:05:07,442 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:05:07,448 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2020-09-24 19:05:07,452 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:05:07,458 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:05:07,537 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:05:07,538 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 62
[2020-09-24 19:05:07,539 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:05:07,539 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 84
[2020-09-24 19:05:07,539 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:05:07,540 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-24 19:05:07,540 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 32
[2020-09-24 19:05:07,540 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-24 19:05:07,541 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:05:07,553 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2020-09-24 19:05:07,558 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:05:07,574 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:05:07,639 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:05:07,640 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 56
[2020-09-24 19:05:07,640 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:05:07,640 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 72
[2020-09-24 19:05:07,640 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:05:07,641 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-24 19:05:07,641 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 28
[2020-09-24 19:05:07,641 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-24 19:05:07,641 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:05:07,646 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2020-09-24 19:05:07,650 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:05:07,655 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:05:07,715 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:05:07,715 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 50
[2020-09-24 19:05:07,715 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:05:07,716 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 64
[2020-09-24 19:05:07,716 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:05:07,716 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-24 19:05:07,716 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 24
[2020-09-24 19:05:07,717 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-24 19:05:07,717 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:05:07,745 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:05:07,748 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:05:07,752 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:05:07,779 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:05:07,779 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 27
[2020-09-24 19:05:07,780 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:05:07,780 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 30
[2020-09-24 19:05:07,780 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:05:07,780 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 19:05:07,780 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:05:07,781 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 22
[2020-09-24 19:05:07,781 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:05:07,818 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-24 19:05:07,819 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:05:07,820 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:05:07,824 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:05:07,824 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 19:05:07,825 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:05:07,825 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 19:05:07,825 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:05:07,825 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:05:07,825 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:05:07,826 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:05:07,826 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:05:07,828 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26
[2020-09-24 19:05:07,829 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:05:07,831 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:05:07,835 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:05:07,836 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-24 19:05:07,836 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:05:07,836 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 19:05:07,836 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:05:07,837 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:05:07,837 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 12
[2020-09-24 19:05:07,837 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:05:07,837 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:05:07,839 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2020-09-24 19:05:07,840 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:05:07,841 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:05:07,843 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:05:07,843 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-24 19:05:07,844 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:05:07,844 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 19:05:07,844 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:05:07,845 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:05:07,845 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:05:07,845 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:05:07,846 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:05:07,852 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262
[2020-09-24 19:05:07,853 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:05:07,855 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:05:07,856 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:05:07,856 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 19:05:07,856 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:05:07,857 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 19:05:07,857 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:05:07,857 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:05:07,857 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 19:05:07,857 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:05:07,858 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:05:07,859 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272
[2020-09-24 19:05:07,860 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:05:07,861 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:05:07,863 FATAL L256   erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:05:07,863 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 19:05:07,863 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:05:07,863 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 19:05:07,863 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:05:07,864 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:05:07,864 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 19:05:07,864 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:05:07,864 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:05:07,931 INFO  L134       CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked.
[2020-09-24 19:05:07,932 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1913203404]
[2020-09-24 19:05:07,932 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 19:05:07,932 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11
[2020-09-24 19:05:07,932 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889157606]
[2020-09-24 19:05:07,933 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 11 states
[2020-09-24 19:05:07,933 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 19:05:07,934 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2020-09-24 19:05:07,934 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110
[2020-09-24 19:05:07,934 INFO  L87              Difference]: Start difference. First operand 985 states and 1197 transitions. Second operand 11 states.
[2020-09-24 19:05:10,464 WARN  L193               SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 211
[2020-09-24 19:05:10,822 WARN  L193               SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 213
[2020-09-24 19:05:11,168 WARN  L193               SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 215
[2020-09-24 19:05:11,544 WARN  L193               SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 211
[2020-09-24 19:05:11,892 WARN  L193               SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 213
[2020-09-24 19:05:12,215 WARN  L193               SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 211
[2020-09-24 19:05:14,048 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 19:05:14,049 INFO  L93              Difference]: Finished difference Result 1918 states and 2448 transitions.
[2020-09-24 19:05:14,049 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. 
[2020-09-24 19:05:14,049 INFO  L78                 Accepts]: Start accepts. Automaton has 11 states. Word has length 284
[2020-09-24 19:05:14,050 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 19:05:14,058 INFO  L225             Difference]: With dead ends: 1918
[2020-09-24 19:05:14,058 INFO  L226             Difference]: Without dead ends: 1085
[2020-09-24 19:05:14,063 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420
[2020-09-24 19:05:14,065 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1085 states.