/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product52.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 06:27:58,382 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 06:27:58,386 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 06:27:58,412 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 06:27:58,413 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 06:27:58,414 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 06:27:58,415 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 06:27:58,417 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 06:27:58,419 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 06:27:58,420 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 06:27:58,421 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 06:27:58,422 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 06:27:58,423 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 06:27:58,424 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 06:27:58,425 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 06:27:58,427 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 06:27:58,427 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 06:27:58,429 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 06:27:58,430 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 06:27:58,432 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 06:27:58,434 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 06:27:58,435 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 06:27:58,437 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 06:27:58,438 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 06:27:58,440 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 06:27:58,441 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 06:27:58,441 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 06:27:58,442 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 06:27:58,442 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 06:27:58,443 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 06:27:58,444 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 06:27:58,445 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 06:27:58,445 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 06:27:58,446 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 06:27:58,447 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 06:27:58,448 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 06:27:58,448 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 06:27:58,449 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 06:27:58,449 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 06:27:58,450 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 06:27:58,451 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 06:27:58,452 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-25 06:27:58,476 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 06:27:58,476 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 06:27:58,478 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 06:27:58,478 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 06:27:58,478 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 06:27:58,479 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 06:27:58,479 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 06:27:58,479 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 06:27:58,479 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 06:27:58,479 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 06:27:58,480 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 06:27:58,480 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 06:27:58,480 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 06:27:58,480 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 06:27:58,480 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 06:27:58,480 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 06:27:58,481 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 06:27:58,481 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 06:27:58,481 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 06:27:58,481 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 06:27:58,482 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 06:27:58,482 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 06:27:58,482 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 06:27:58,482 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 06:27:58,482 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 06:27:58,483 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 06:27:58,483 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 06:27:58,483 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 06:27:58,483 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 06:27:58,483 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;
[2020-09-25 06:27:58,957 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 06:27:58,977 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 06:27:58,982 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 06:27:58,983 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 06:27:58,983 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 06:27:58,985 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product52.cil.c
[2020-09-25 06:27:59,059 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0651a29d9/0dce0d8936274bbe80fc561f2c80bd82/FLAG837671e1e
[2020-09-25 06:27:59,757 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 06:27:59,758 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product52.cil.c
[2020-09-25 06:27:59,770 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0651a29d9/0dce0d8936274bbe80fc561f2c80bd82/FLAG837671e1e
[2020-09-25 06:27:59,945 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0651a29d9/0dce0d8936274bbe80fc561f2c80bd82
[2020-09-25 06:27:59,960 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 06:27:59,967 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 06:27:59,968 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 06:27:59,968 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 06:27:59,972 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 06:27:59,974 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:27:59" (1/1) ...
[2020-09-25 06:27:59,979 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ed0b866 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:27:59, skipping insertion in model container
[2020-09-25 06:27:59,980 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:27:59" (1/1) ...
[2020-09-25 06:27:59,990 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 06:28:00,066 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 06:28:00,580 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 06:28:00,608 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 06:28:00,754 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 06:28:00,795 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 06:28:00,795 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:00 WrapperNode
[2020-09-25 06:28:00,796 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 06:28:00,797 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 06:28:00,797 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 06:28:00,797 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 06:28:00,812 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:00" (1/1) ...
[2020-09-25 06:28:00,813 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:00" (1/1) ...
[2020-09-25 06:28:00,836 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:00" (1/1) ...
[2020-09-25 06:28:00,837 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:00" (1/1) ...
[2020-09-25 06:28:00,868 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:00" (1/1) ...
[2020-09-25 06:28:00,881 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:00" (1/1) ...
[2020-09-25 06:28:00,889 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:00" (1/1) ...
[2020-09-25 06:28:00,897 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 06:28:00,898 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 06:28:00,898 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 06:28:00,899 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 06:28:00,900 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:00" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 06:28:00,997 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 06:28:00,998 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 06:28:00,998 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 06:28:00,998 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 06:28:00,998 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 06:28:00,999 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 06:28:00,999 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 06:28:00,999 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 06:28:00,999 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 06:28:01,000 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-09-25 06:28:01,000 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-25 06:28:01,000 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 06:28:01,000 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-25 06:28:01,000 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-25 06:28:01,001 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 06:28:01,001 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 06:28:01,001 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 06:28:01,001 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 06:28:01,002 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 06:28:01,002 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 06:28:01,002 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-09-25 06:28:01,003 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-25 06:28:01,003 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-25 06:28:01,003 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-25 06:28:01,003 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 06:28:01,003 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 06:28:01,004 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 06:28:01,004 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 06:28:01,004 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 06:28:01,004 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 06:28:01,004 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 06:28:01,005 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 06:28:01,005 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 06:28:01,005 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 06:28:01,005 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 06:28:01,005 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 06:28:01,006 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 06:28:01,006 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 06:28:01,006 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 06:28:01,006 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 06:28:01,006 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 06:28:01,006 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1
[2020-09-25 06:28:01,007 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 06:28:01,007 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 06:28:01,007 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 06:28:01,007 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 06:28:01,007 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 06:28:01,007 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 06:28:01,008 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 06:28:01,008 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 06:28:01,008 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 06:28:01,008 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-09-25 06:28:01,008 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-25 06:28:01,009 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 06:28:01,009 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 06:28:01,009 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 06:28:01,009 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 06:28:01,009 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 06:28:01,009 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 06:28:01,010 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-25 06:28:01,010 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-25 06:28:01,010 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1
[2020-09-25 06:28:01,010 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 06:28:01,010 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-25 06:28:01,010 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-09-25 06:28:01,011 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-25 06:28:01,011 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-25 06:28:01,011 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 06:28:01,011 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 06:28:01,011 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 06:28:01,012 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 06:28:01,012 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 06:28:01,012 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 06:28:01,012 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 06:28:01,012 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 06:28:01,012 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 06:28:01,012 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 06:28:01,013 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 06:28:01,013 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 06:28:01,013 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 06:28:01,013 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 06:28:01,013 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 06:28:01,014 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 06:28:01,014 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 06:28:01,014 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 06:28:01,014 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 06:28:01,014 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 06:28:01,014 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 06:28:01,015 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 06:28:01,015 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 06:28:01,015 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 06:28:01,015 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 06:28:01,015 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 06:28:01,015 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 06:28:01,015 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 06:28:01,016 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 06:28:01,016 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 06:28:01,016 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 06:28:02,425 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 06:28:02,425 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 06:28:02,433 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:28:02 BoogieIcfgContainer
[2020-09-25 06:28:02,433 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 06:28:02,434 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 06:28:02,435 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 06:28:02,438 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 06:28:02,439 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:27:59" (1/3) ...
[2020-09-25 06:28:02,440 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5538a1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:28:02, skipping insertion in model container
[2020-09-25 06:28:02,440 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:00" (2/3) ...
[2020-09-25 06:28:02,440 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5538a1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:28:02, skipping insertion in model container
[2020-09-25 06:28:02,440 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:28:02" (3/3) ...
[2020-09-25 06:28:02,443 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec4_product52.cil.c
[2020-09-25 06:28:02,455 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 06:28:02,467 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 06:28:02,488 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 06:28:02,521 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 06:28:02,521 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 06:28:02,521 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 06:28:02,521 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 06:28:02,522 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 06:28:02,522 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 06:28:02,522 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 06:28:02,522 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 06:28:02,551 INFO  L276                IsEmpty]: Start isEmpty. Operand 322 states.
[2020-09-25 06:28:02,569 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 143
[2020-09-25 06:28:02,569 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 06:28:02,571 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 06:28:02,572 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 06:28:02,579 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 06:28:02,580 INFO  L82        PathProgramCache]: Analyzing trace with hash -1964738656, now seen corresponding path program 1 times
[2020-09-25 06:28:02,590 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 06:28:02,591 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1386492473]
[2020-09-25 06:28:02,591 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 06:28:02,942 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:28:03,122 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:03,300 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:04,663 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:05,668 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:07,977 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:28:07,979 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 173
[2020-09-25 06:28:07,979 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 4
[2020-09-25 06:28:07,979 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5026
[2020-09-25 06:28:07,984 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:28:07,985 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:28:07,993 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:28:07,995 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 129
[2020-09-25 06:28:07,996 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:28:07,996 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 16
[2020-09-25 06:28:08,533 WARN  L193               SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 06:28:08,536 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 06:28:08,550 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:28:08,560 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:08,675 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:28:08,676 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 06:28:08,676 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:28:08,676 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 124
[2020-09-25 06:28:08,676 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:28:08,677 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:28:08,677 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:28:08,677 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:28:08,677 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:28:08,678 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:28:08,747 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 06:28:08,748 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:28:08,750 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:08,752 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:28:08,752 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 06:28:08,752 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:28:08,752 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 06:28:08,753 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:28:08,753 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:28:08,753 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:28:08,753 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:28:08,754 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:28:08,754 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:28:08,755 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 06:28:08,756 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:28:08,757 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:08,760 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:28:08,760 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 06:28:08,760 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:28:08,760 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 06:28:08,761 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:28:08,761 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:28:08,761 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:28:08,761 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:28:08,761 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:28:08,762 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:28:08,763 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 06:28:08,764 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:28:08,766 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:08,771 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:28:08,772 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 06:28:08,772 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:28:08,772 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 06:28:08,772 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:28:08,773 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:28:08,773 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:28:08,773 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:28:08,773 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:28:08,774 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:28:08,776 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 06:28:08,776 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:28:08,778 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:08,780 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:28:08,780 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 06:28:08,780 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:28:08,780 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 06:28:08,781 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:28:08,781 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:28:08,781 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:28:08,781 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:28:08,782 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:28:08,782 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:28:08,783 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120
[2020-09-25 06:28:08,784 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:28:08,786 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:08,788 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:28:08,788 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 06:28:08,789 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:28:08,789 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 06:28:08,789 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:28:08,789 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:28:08,789 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:28:08,790 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 06:28:08,790 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:28:08,790 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:28:08,792 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130
[2020-09-25 06:28:08,793 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:28:08,795 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:08,798 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:28:08,798 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 06:28:08,798 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:28:08,798 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 06:28:08,799 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:28:08,799 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:28:08,799 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:28:08,799 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 06:28:08,800 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:28:08,800 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:28:08,830 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 06:28:08,831 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1386492473]
[2020-09-25 06:28:08,833 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 06:28:08,834 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-25 06:28:08,835 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726733842]
[2020-09-25 06:28:08,842 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-25 06:28:08,843 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 06:28:08,862 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-25 06:28:08,863 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-25 06:28:08,866 INFO  L87              Difference]: Start difference. First operand 322 states. Second operand 3 states.
[2020-09-25 06:28:10,434 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 06:28:10,436 INFO  L93              Difference]: Finished difference Result 512 states and 609 transitions.
[2020-09-25 06:28:10,437 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-09-25 06:28:10,438 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 142
[2020-09-25 06:28:10,440 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 06:28:10,466 INFO  L225             Difference]: With dead ends: 512
[2020-09-25 06:28:10,466 INFO  L226             Difference]: Without dead ends: 315
[2020-09-25 06:28:10,472 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-25 06:28:10,496 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 315 states.
[2020-09-25 06:28:10,586 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 271.
[2020-09-25 06:28:10,588 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 271 states.
[2020-09-25 06:28:10,590 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 295 transitions.
[2020-09-25 06:28:10,592 INFO  L78                 Accepts]: Start accepts. Automaton has 271 states and 295 transitions. Word has length 142
[2020-09-25 06:28:10,593 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 06:28:10,593 INFO  L479      AbstractCegarLoop]: Abstraction has 271 states and 295 transitions.
[2020-09-25 06:28:10,593 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-25 06:28:10,593 INFO  L276                IsEmpty]: Start isEmpty. Operand 271 states and 295 transitions.
[2020-09-25 06:28:10,597 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 144
[2020-09-25 06:28:10,598 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 06:28:10,598 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 06:28:10,598 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 06:28:10,599 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 06:28:10,599 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 06:28:10,599 INFO  L82        PathProgramCache]: Analyzing trace with hash -760083785, now seen corresponding path program 1 times
[2020-09-25 06:28:10,599 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 06:28:10,600 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [444630219]
[2020-09-25 06:28:10,600 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 06:28:10,660 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:28:10,716 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:10,819 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:12,266 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:12,919 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:15,674 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:28:15,674 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 174
[2020-09-25 06:28:15,674 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 4
[2020-09-25 06:28:15,674 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5010
[2020-09-25 06:28:15,675 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:28:15,675 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:28:15,675 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 06:28:15,675 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 128
[2020-09-25 06:28:15,676 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 3
[2020-09-25 06:28:15,676 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:28:16,046 WARN  L193               SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 06:28:16,048 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 06:28:16,063 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:28:16,089 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:16,209 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:28:16,209 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 06:28:16,209 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:28:16,210 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 142
[2020-09-25 06:28:16,210 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:28:16,210 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:28:16,210 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:28:16,211 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:28:16,211 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:28:16,211 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:28:16,252 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 06:28:16,253 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:28:16,254 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:16,256 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:28:16,256 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 06:28:16,256 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:28:16,257 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 06:28:16,257 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:28:16,258 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:28:16,258 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:28:16,259 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:28:16,259 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:28:16,260 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 06:28:16,261 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 06:28:16,262 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:28:16,263 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:16,265 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:28:16,265 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 06:28:16,266 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:28:16,266 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 06:28:16,266 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:28:16,267 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:28:16,267 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:28:16,268 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:28:16,268 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:28:16,268 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:28:16,269 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 06:28:16,270 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:28:16,272 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:16,276 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:28:16,276 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 06:28:16,277 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:28:16,277 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 06:28:16,278 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:28:16,278 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:28:16,278 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:28:16,279 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:28:16,279 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:28:16,279 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:28:16,281 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 06:28:16,282 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:28:16,283 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:16,285 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:28:16,286 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 06:28:16,286 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:28:16,286 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 06:28:16,287 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:28:16,287 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:28:16,287 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:28:16,288 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:28:16,288 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:28:16,289 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:28:16,290 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 06:28:16,291 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:28:16,293 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:16,294 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:28:16,295 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 06:28:16,295 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:28:16,296 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 06:28:16,296 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:28:16,296 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:28:16,297 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:28:16,297 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 06:28:16,297 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:28:16,298 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:28:16,299 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 06:28:16,300 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:28:16,302 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:16,304 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:28:16,304 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 06:28:16,305 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:28:16,305 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 06:28:16,305 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:28:16,306 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:28:16,306 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:28:16,307 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 06:28:16,307 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:28:16,307 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:28:16,347 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 06:28:16,347 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [444630219]
[2020-09-25 06:28:16,348 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 06:28:16,348 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-25 06:28:16,348 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995206630]
[2020-09-25 06:28:16,350 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-25 06:28:16,351 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 06:28:16,351 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-25 06:28:16,352 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-25 06:28:16,352 INFO  L87              Difference]: Start difference. First operand 271 states and 295 transitions. Second operand 4 states.
[2020-09-25 06:28:17,092 WARN  L193               SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 06:28:18,186 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 06:28:18,186 INFO  L93              Difference]: Finished difference Result 419 states and 472 transitions.
[2020-09-25 06:28:18,187 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-09-25 06:28:18,187 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 143
[2020-09-25 06:28:18,188 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 06:28:18,191 INFO  L225             Difference]: With dead ends: 419
[2020-09-25 06:28:18,191 INFO  L226             Difference]: Without dead ends: 298
[2020-09-25 06:28:18,193 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-09-25 06:28:18,195 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 298 states.
[2020-09-25 06:28:18,242 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 261.
[2020-09-25 06:28:18,242 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 261 states.
[2020-09-25 06:28:18,244 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 282 transitions.
[2020-09-25 06:28:18,244 INFO  L78                 Accepts]: Start accepts. Automaton has 261 states and 282 transitions. Word has length 143
[2020-09-25 06:28:18,245 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 06:28:18,245 INFO  L479      AbstractCegarLoop]: Abstraction has 261 states and 282 transitions.
[2020-09-25 06:28:18,245 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-25 06:28:18,245 INFO  L276                IsEmpty]: Start isEmpty. Operand 261 states and 282 transitions.
[2020-09-25 06:28:18,247 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 157
[2020-09-25 06:28:18,248 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 06:28:18,248 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 06:28:18,248 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 06:28:18,248 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 06:28:18,249 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 06:28:18,249 INFO  L82        PathProgramCache]: Analyzing trace with hash -815473591, now seen corresponding path program 1 times
[2020-09-25 06:28:18,249 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 06:28:18,249 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2025510523]
[2020-09-25 06:28:18,250 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 06:28:18,302 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:28:18,351 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:18,577 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:19,445 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:20,852 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:23,332 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:28:23,333 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 187
[2020-09-25 06:28:23,333 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 4
[2020-09-25 06:28:23,333 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5028
[2020-09-25 06:28:23,333 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:28:23,333 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:28:23,333 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 06:28:23,334 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 146
[2020-09-25 06:28:23,334 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-25 06:28:23,334 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 06:28:23,711 WARN  L193               SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 06:28:23,712 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 06:28:23,724 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:28:23,734 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:23,833 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:28:23,834 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 06:28:23,834 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:28:23,834 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 107
[2020-09-25 06:28:23,835 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:28:23,835 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:28:23,836 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:28:23,836 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:28:23,836 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:28:23,837 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:28:23,879 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 06:28:23,880 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:28:23,881 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:23,882 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:28:23,883 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 06:28:23,883 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:28:23,883 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 06:28:23,883 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:28:23,884 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:28:23,884 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:28:23,884 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:28:23,884 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:28:23,884 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:28:23,885 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 06:28:23,886 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:28:23,887 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:23,889 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:28:23,889 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 06:28:23,889 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:28:23,889 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 06:28:23,890 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:28:23,890 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:28:23,890 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:28:23,890 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:28:23,890 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:28:23,891 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:28:23,892 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 06:28:23,892 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:28:23,893 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:23,897 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:28:23,897 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 06:28:23,897 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:28:23,898 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 06:28:23,898 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:28:23,898 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:28:23,898 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:28:23,899 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:28:23,899 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:28:23,899 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:28:23,900 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 06:28:23,901 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:28:23,902 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:23,903 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:28:23,904 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 06:28:23,904 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:28:23,904 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 06:28:23,904 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:28:23,905 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:28:23,905 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:28:23,905 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:28:23,905 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:28:23,905 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:28:23,917 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124
[2020-09-25 06:28:23,919 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:28:23,920 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:23,931 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:28:23,932 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 06:28:23,935 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:28:23,935 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-25 06:28:23,936 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:28:23,936 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:28:23,937 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 06:28:23,937 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:28:23,937 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-25 06:28:23,938 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:28:23,944 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134
[2020-09-25 06:28:23,946 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:28:23,948 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:23,954 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:28:23,955 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 06:28:23,955 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:28:23,956 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 06:28:23,956 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:28:23,956 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:28:23,957 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:28:23,957 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 06:28:23,958 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:28:23,958 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:28:23,960 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144
[2020-09-25 06:28:23,961 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:28:23,963 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:23,965 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:28:23,965 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 06:28:23,965 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:28:23,966 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 06:28:23,966 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:28:23,966 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:28:23,967 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:28:23,967 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 06:28:23,968 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:28:23,968 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:28:24,017 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 06:28:24,018 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2025510523]
[2020-09-25 06:28:24,019 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 06:28:24,019 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 06:28:24,019 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756272727]
[2020-09-25 06:28:24,021 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 06:28:24,021 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 06:28:24,022 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 06:28:24,024 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-25 06:28:24,024 INFO  L87              Difference]: Start difference. First operand 261 states and 282 transitions. Second operand 5 states.
[2020-09-25 06:28:24,622 WARN  L193               SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 06:28:26,595 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 06:28:26,596 INFO  L93              Difference]: Finished difference Result 633 states and 733 transitions.
[2020-09-25 06:28:26,596 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-09-25 06:28:26,597 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 156
[2020-09-25 06:28:26,597 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 06:28:26,601 INFO  L225             Difference]: With dead ends: 633
[2020-09-25 06:28:26,602 INFO  L226             Difference]: Without dead ends: 482
[2020-09-25 06:28:26,603 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-09-25 06:28:26,604 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 482 states.
[2020-09-25 06:28:26,673 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 402.
[2020-09-25 06:28:26,674 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 402 states.
[2020-09-25 06:28:26,676 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 445 transitions.
[2020-09-25 06:28:26,677 INFO  L78                 Accepts]: Start accepts. Automaton has 402 states and 445 transitions. Word has length 156
[2020-09-25 06:28:26,677 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 06:28:26,678 INFO  L479      AbstractCegarLoop]: Abstraction has 402 states and 445 transitions.
[2020-09-25 06:28:26,678 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 06:28:26,678 INFO  L276                IsEmpty]: Start isEmpty. Operand 402 states and 445 transitions.
[2020-09-25 06:28:26,680 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 162
[2020-09-25 06:28:26,681 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 06:28:26,681 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 06:28:26,681 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 06:28:26,682 INFO  L427      AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 06:28:26,682 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 06:28:26,682 INFO  L82        PathProgramCache]: Analyzing trace with hash 870315564, now seen corresponding path program 1 times
[2020-09-25 06:28:26,682 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 06:28:26,683 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1768417038]
[2020-09-25 06:28:26,683 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 06:28:26,729 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:28:26,779 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:27,704 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:27,957 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:30,247 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:31,749 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:28:31,750 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 192
[2020-09-25 06:28:31,750 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 4
[2020-09-25 06:28:31,750 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5017
[2020-09-25 06:28:31,750 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:28:31,750 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:28:31,751 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 06:28:31,751 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 150
[2020-09-25 06:28:31,751 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 38
[2020-09-25 06:28:31,751 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 06:28:32,079 WARN  L193               SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 06:28:32,080 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 06:28:32,090 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:28:32,100 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:32,189 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:28:32,190 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 06:28:32,190 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:28:32,190 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 98
[2020-09-25 06:28:32,191 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:28:32,191 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:28:32,191 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:28:32,191 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:28:32,191 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:28:32,192 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:28:32,221 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 06:28:32,222 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:28:32,223 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:32,225 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:28:32,225 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 06:28:32,225 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:28:32,225 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 06:28:32,226 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:28:32,226 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:28:32,226 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:28:32,226 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:28:32,227 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:28:32,227 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:28:32,228 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 06:28:32,228 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:28:32,229 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:32,231 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:28:32,231 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 06:28:32,231 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:28:32,232 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 06:28:32,232 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:28:32,232 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:28:32,232 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:28:32,233 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:28:32,233 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:28:32,233 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:28:32,235 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 06:28:32,236 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:28:32,237 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:32,241 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:28:32,241 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 06:28:32,242 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:28:32,242 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 06:28:32,242 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:28:32,242 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:28:32,242 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:28:32,243 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:28:32,243 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:28:32,243 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:28:32,245 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 06:28:32,245 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:28:32,246 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:32,247 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:28:32,247 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 06:28:32,248 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:28:32,248 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 06:28:32,248 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:28:32,248 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:28:32,248 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:28:32,249 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:28:32,249 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:28:32,249 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 06:28:32,263 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128
[2020-09-25 06:28:32,265 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:28:32,266 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:32,271 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:28:32,271 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 06:28:32,271 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:28:32,271 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 06:28:32,272 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:28:32,272 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:28:32,272 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 06:28:32,272 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:28:32,272 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-25 06:28:32,273 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:28:32,275 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139
[2020-09-25 06:28:32,276 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:28:32,277 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:32,280 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:28:32,281 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 06:28:32,281 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:28:32,281 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 06:28:32,281 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:28:32,282 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:28:32,282 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 06:28:32,282 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:28:32,282 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 06:28:32,282 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:28:32,284 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149
[2020-09-25 06:28:32,287 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:28:32,289 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:32,295 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:28:32,295 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 06:28:32,295 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:28:32,295 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 06:28:32,296 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:28:32,296 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:28:32,296 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 06:28:32,297 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:28:32,297 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 06:28:32,297 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:28:32,351 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 06:28:32,352 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1768417038]
[2020-09-25 06:28:32,353 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 06:28:32,353 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2020-09-25 06:28:32,353 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550329359]
[2020-09-25 06:28:32,354 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-25 06:28:32,354 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 06:28:32,355 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-25 06:28:32,355 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2020-09-25 06:28:32,355 INFO  L87              Difference]: Start difference. First operand 402 states and 445 transitions. Second operand 9 states.
[2020-09-25 06:28:32,823 WARN  L193               SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 06:28:34,117 WARN  L193               SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 06:28:34,433 WARN  L193               SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 06:28:34,741 WARN  L193               SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 06:28:35,055 WARN  L193               SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 06:28:35,343 WARN  L193               SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 06:28:35,980 WARN  L193               SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 06:28:36,319 WARN  L193               SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 06:28:36,627 WARN  L193               SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 06:28:37,689 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 06:28:37,690 INFO  L93              Difference]: Finished difference Result 949 states and 1135 transitions.
[2020-09-25 06:28:37,690 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2020-09-25 06:28:37,691 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 161
[2020-09-25 06:28:37,692 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 06:28:37,697 INFO  L225             Difference]: With dead ends: 949
[2020-09-25 06:28:37,698 INFO  L226             Difference]: Without dead ends: 657
[2020-09-25 06:28:37,699 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342
[2020-09-25 06:28:37,701 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 657 states.
[2020-09-25 06:28:37,777 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 580.
[2020-09-25 06:28:37,777 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 580 states.
[2020-09-25 06:28:37,781 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 660 transitions.
[2020-09-25 06:28:37,782 INFO  L78                 Accepts]: Start accepts. Automaton has 580 states and 660 transitions. Word has length 161
[2020-09-25 06:28:37,782 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 06:28:37,783 INFO  L479      AbstractCegarLoop]: Abstraction has 580 states and 660 transitions.
[2020-09-25 06:28:37,783 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-09-25 06:28:37,783 INFO  L276                IsEmpty]: Start isEmpty. Operand 580 states and 660 transitions.
[2020-09-25 06:28:37,786 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 195
[2020-09-25 06:28:37,786 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 06:28:37,786 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 06:28:37,787 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-09-25 06:28:37,787 INFO  L427      AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 06:28:37,787 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 06:28:37,787 INFO  L82        PathProgramCache]: Analyzing trace with hash -1978598191, now seen corresponding path program 1 times
[2020-09-25 06:28:37,788 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 06:28:37,788 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [286337752]
[2020-09-25 06:28:37,788 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 06:28:37,832 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:28:37,881 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:38,263 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:42,842 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:28:42,842 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 235
[2020-09-25 06:28:42,843 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 06:28:42,843 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5006
[2020-09-25 06:28:42,843 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:28:42,843 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:28:42,844 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-25 06:28:42,844 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 183
[2020-09-25 06:28:42,844 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-25 06:28:42,844 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:28:43,188 WARN  L193               SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 06:28:43,189 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 06:28:43,196 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:28:43,205 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:43,287 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:28:43,287 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 06:28:43,287 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:28:43,288 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 90
[2020-09-25 06:28:43,288 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:28:43,288 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:28:43,288 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:28:43,288 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:28:43,288 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:28:43,288 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 06:28:43,314 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 06:28:43,315 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:28:43,316 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:43,317 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:28:43,317 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 06:28:43,317 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:28:43,318 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 06:28:43,318 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:28:43,318 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:28:43,318 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:28:43,318 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:28:43,319 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:28:43,319 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:28:43,320 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 06:28:43,320 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:28:43,321 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:43,322 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:28:43,323 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 06:28:43,323 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:28:43,323 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 06:28:43,323 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:28:43,323 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:28:43,324 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:28:43,324 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:28:43,324 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:28:43,324 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:28:43,325 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 06:28:43,326 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:28:43,327 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:43,330 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:28:43,330 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 06:28:43,330 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:28:43,330 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 06:28:43,330 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:28:43,330 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:28:43,331 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:28:43,331 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:28:43,331 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:28:43,331 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 06:28:43,332 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 06:28:43,333 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:28:43,334 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:43,335 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:28:43,335 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 06:28:43,335 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:28:43,336 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 06:28:43,336 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:28:43,336 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:28:43,336 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:28:43,337 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:28:43,337 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:28:43,337 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:28:43,344 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124
[2020-09-25 06:28:43,345 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:28:43,346 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:43,348 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:28:43,348 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 06:28:43,348 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:28:43,349 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 06:28:43,349 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:28:43,349 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:28:43,349 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:28:43,350 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:28:43,350 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:28:43,350 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:28:43,358 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 06:28:43,362 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:28:43,368 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:43,425 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:28:43,425 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 51
[2020-09-25 06:28:43,425 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:28:43,425 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 61
[2020-09-25 06:28:43,426 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:28:43,426 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:28:43,426 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-25 06:28:43,426 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 29
[2020-09-25 06:28:43,427 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-25 06:28:43,427 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:28:43,431 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 06:28:43,435 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:28:43,439 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:43,488 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:28:43,488 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 44
[2020-09-25 06:28:43,488 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:28:43,489 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 52
[2020-09-25 06:28:43,489 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:28:43,489 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:28:43,489 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-25 06:28:43,490 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 24
[2020-09-25 06:28:43,490 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-25 06:28:43,490 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:28:43,524 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 06:28:43,527 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:28:43,531 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:43,558 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:28:43,558 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 27
[2020-09-25 06:28:43,558 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:28:43,558 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 30
[2020-09-25 06:28:43,559 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:28:43,559 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:28:43,559 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 06:28:43,560 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:28:43,560 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 22
[2020-09-25 06:28:43,560 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:28:43,599 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 06:28:43,600 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:28:43,602 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:43,605 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:28:43,606 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 06:28:43,606 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:28:43,606 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 06:28:43,606 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:28:43,607 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:28:43,607 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:28:43,607 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:28:43,607 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:28:43,608 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:28:43,609 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26
[2020-09-25 06:28:43,610 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:28:43,611 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:43,613 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:28:43,614 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 06:28:43,614 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:28:43,614 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 06:28:43,614 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:28:43,615 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:28:43,615 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:28:43,615 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 6
[2020-09-25 06:28:43,615 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:28:43,615 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:28:43,618 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172
[2020-09-25 06:28:43,619 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:28:43,620 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:43,622 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:28:43,622 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 06:28:43,622 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:28:43,622 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 06:28:43,622 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:28:43,623 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:28:43,623 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:28:43,623 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 06:28:43,623 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:28:43,623 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 06:28:43,625 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182
[2020-09-25 06:28:43,625 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:28:43,627 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:28:43,628 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:28:43,628 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 06:28:43,628 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:28:43,629 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 06:28:43,629 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:28:43,629 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:28:43,630 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:28:43,630 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 06:28:43,630 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:28:43,630 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:28:43,678 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 06:28:43,678 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [286337752]
[2020-09-25 06:28:43,678 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 06:28:43,679 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2020-09-25 06:28:43,679 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288624377]
[2020-09-25 06:28:43,679 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 10 states
[2020-09-25 06:28:43,680 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 06:28:43,680 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2020-09-25 06:28:43,680 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90
[2020-09-25 06:28:43,680 INFO  L87              Difference]: Start difference. First operand 580 states and 660 transitions. Second operand 10 states.
[2020-09-25 06:28:45,090 WARN  L193               SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 06:28:45,402 WARN  L193               SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-25 06:28:45,697 WARN  L193               SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-25 06:28:46,043 WARN  L193               SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 06:28:46,361 WARN  L193               SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-25 06:28:46,652 WARN  L193               SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 06:28:47,822 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 06:28:47,822 INFO  L93              Difference]: Finished difference Result 1225 states and 1481 transitions.
[2020-09-25 06:28:47,823 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-25 06:28:47,823 INFO  L78                 Accepts]: Start accepts. Automaton has 10 states. Word has length 194
[2020-09-25 06:28:47,824 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 06:28:47,829 INFO  L225             Difference]: With dead ends: 1225
[2020-09-25 06:28:47,829 INFO  L226             Difference]: Without dead ends: 755
[2020-09-25 06:28:47,831 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272
[2020-09-25 06:28:47,832 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 755 states.
[2020-09-25 06:28:47,921 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 599.
[2020-09-25 06:28:47,922 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 599 states.
[2020-09-25 06:28:47,925 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 680 transitions.
[2020-09-25 06:28:47,926 INFO  L78                 Accepts]: Start accepts. Automaton has 599 states and 680 transitions. Word has length 194
[2020-09-25 06:28:47,926 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 06:28:47,927 INFO  L479      AbstractCegarLoop]: Abstraction has 599 states and 680 transitions.
[2020-09-25 06:28:47,927 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 10 states.
[2020-09-25 06:28:47,927 INFO  L276                IsEmpty]: Start isEmpty. Operand 599 states and 680 transitions.
[2020-09-25 06:28:47,930 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 195
[2020-09-25 06:28:47,930 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 06:28:47,930 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 06:28:47,931 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-09-25 06:28:47,931 INFO  L427      AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 06:28:47,931 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 06:28:47,931 INFO  L82        PathProgramCache]: Analyzing trace with hash 1342498929, now seen corresponding path program 1 times
[2020-09-25 06:28:47,931 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 06:28:47,932 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [639779732]
[2020-09-25 06:28:47,932 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 06:28:47,976 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat