/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=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product52.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 04:11:01,087 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 04:11:01,091 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 04:11:01,118 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 04:11:01,119 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 04:11:01,120 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 04:11:01,121 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 04:11:01,123 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 04:11:01,125 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 04:11:01,126 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 04:11:01,128 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 04:11:01,129 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 04:11:01,129 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 04:11:01,130 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 04:11:01,132 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 04:11:01,133 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 04:11:01,134 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 04:11:01,135 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 04:11:01,137 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 04:11:01,139 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 04:11:01,141 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 04:11:01,143 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 04:11:01,147 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 04:11:01,155 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 04:11:01,158 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 04:11:01,158 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 04:11:01,159 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 04:11:01,160 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 04:11:01,160 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 04:11:01,161 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 04:11:01,162 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 04:11:01,162 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 04:11:01,163 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 04:11:01,164 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 04:11:01,165 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 04:11:01,166 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 04:11:01,167 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 04:11:01,167 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 04:11:01,167 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 04:11:01,168 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 04:11:01,169 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 04:11:01,170 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 04:11:01,197 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 04:11:01,197 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 04:11:01,199 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 04:11:01,199 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 04:11:01,199 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 04:11:01,199 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 04:11:01,200 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 04:11:01,200 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 04:11:01,200 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 04:11:01,200 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 04:11:01,200 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 04:11:01,201 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 04:11:01,201 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 04:11:01,201 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 04:11:01,201 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 04:11:01,201 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 04:11:01,202 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 04:11:01,202 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 04:11:01,202 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 04:11:01,202 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 04:11:01,202 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 04:11:01,203 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 04:11:01,203 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 04:11:01,203 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 04:11:01,203 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 04:11:01,204 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 04:11:01,204 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 04:11:01,204 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 04:11:01,204 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 04:11:01,204 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=0.2;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true;
[2020-09-25 04:11:01,695 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 04:11:01,721 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 04:11:01,727 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 04:11:01,728 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 04:11:01,729 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 04:11:01,730 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product52.cil.c
[2020-09-25 04:11:01,807 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/47332b39c/d59f2684806a40e3a63ed4080e01ae77/FLAG86435ec5c
[2020-09-25 04:11:02,437 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 04:11:02,438 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product52.cil.c
[2020-09-25 04:11:02,459 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/47332b39c/d59f2684806a40e3a63ed4080e01ae77/FLAG86435ec5c
[2020-09-25 04:11:02,668 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/47332b39c/d59f2684806a40e3a63ed4080e01ae77
[2020-09-25 04:11:02,680 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 04:11:02,686 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 04:11:02,687 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 04:11:02,687 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 04:11:02,691 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 04:11:02,692 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:11:02" (1/1) ...
[2020-09-25 04:11:02,697 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61445f01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:11:02, skipping insertion in model container
[2020-09-25 04:11:02,697 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:11:02" (1/1) ...
[2020-09-25 04:11:02,706 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 04:11:02,783 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 04:11:03,178 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 04:11:03,197 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 04:11:03,388 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 04:11:03,429 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 04:11:03,429 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:11:03 WrapperNode
[2020-09-25 04:11:03,430 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 04:11:03,431 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 04:11:03,431 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 04:11:03,431 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 04:11:03,446 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:11:03" (1/1) ...
[2020-09-25 04:11:03,447 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:11:03" (1/1) ...
[2020-09-25 04:11:03,469 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:11:03" (1/1) ...
[2020-09-25 04:11:03,469 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:11:03" (1/1) ...
[2020-09-25 04:11:03,502 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:11:03" (1/1) ...
[2020-09-25 04:11:03,513 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:11:03" (1/1) ...
[2020-09-25 04:11:03,519 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:11:03" (1/1) ...
[2020-09-25 04:11:03,527 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 04:11:03,527 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 04:11:03,527 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 04:11:03,528 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 04:11:03,529 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:11:03" (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 04:11:03,606 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 04:11:03,606 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 04:11:03,607 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 04:11:03,607 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 04:11:03,607 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 04:11:03,607 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 04:11:03,607 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 04:11:03,608 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 04:11:03,608 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 04:11:03,608 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-09-25 04:11:03,608 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-25 04:11:03,608 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 04:11:03,608 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-25 04:11:03,609 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-25 04:11:03,609 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 04:11:03,609 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 04:11:03,609 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 04:11:03,609 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 04:11:03,610 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 04:11:03,610 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 04:11:03,610 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-09-25 04:11:03,610 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-25 04:11:03,611 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-25 04:11:03,611 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-25 04:11:03,611 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 04:11:03,611 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 04:11:03,611 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 04:11:03,611 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 04:11:03,612 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 04:11:03,612 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 04:11:03,612 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 04:11:03,612 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 04:11:03,612 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 04:11:03,613 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 04:11:03,613 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 04:11:03,613 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 04:11:03,613 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 04:11:03,613 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 04:11:03,613 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 04:11:03,614 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 04:11:03,614 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 04:11:03,614 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1
[2020-09-25 04:11:03,614 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 04:11:03,614 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 04:11:03,614 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 04:11:03,615 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 04:11:03,615 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 04:11:03,615 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 04:11:03,615 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 04:11:03,615 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 04:11:03,615 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 04:11:03,616 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-09-25 04:11:03,616 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-25 04:11:03,616 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 04:11:03,616 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 04:11:03,616 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 04:11:03,616 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 04:11:03,617 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 04:11:03,617 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 04:11:03,617 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-25 04:11:03,617 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-25 04:11:03,617 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1
[2020-09-25 04:11:03,617 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 04:11:03,618 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-25 04:11:03,618 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-09-25 04:11:03,618 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-25 04:11:03,618 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-25 04:11:03,618 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 04:11:03,618 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 04:11:03,619 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 04:11:03,619 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 04:11:03,619 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 04:11:03,619 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 04:11:03,619 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 04:11:03,619 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 04:11:03,620 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 04:11:03,620 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 04:11:03,620 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 04:11:03,620 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 04:11:03,620 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 04:11:03,620 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 04:11:03,621 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 04:11:03,621 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 04:11:03,621 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 04:11:03,621 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 04:11:03,621 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 04:11:03,621 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 04:11:03,622 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 04:11:03,622 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 04:11:03,622 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 04:11:03,622 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 04:11:03,622 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 04:11:03,622 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 04:11:03,622 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 04:11:03,623 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 04:11:03,623 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 04:11:03,623 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 04:11:03,623 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 04:11:04,954 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 04:11:04,954 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 04:11:04,967 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:11:04 BoogieIcfgContainer
[2020-09-25 04:11:04,967 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 04:11:04,971 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 04:11:04,971 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 04:11:04,975 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 04:11:04,976 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:11:02" (1/3) ...
[2020-09-25 04:11:04,977 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ece7d1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:11:04, skipping insertion in model container
[2020-09-25 04:11:04,977 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:11:03" (2/3) ...
[2020-09-25 04:11:04,978 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ece7d1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:11:04, skipping insertion in model container
[2020-09-25 04:11:04,978 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:11:04" (3/3) ...
[2020-09-25 04:11:04,981 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec4_product52.cil.c
[2020-09-25 04:11:04,993 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 04:11:05,008 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 04:11:05,033 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 04:11:05,072 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 04:11:05,072 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 04:11:05,072 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 04:11:05,073 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 04:11:05,073 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 04:11:05,073 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 04:11:05,073 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 04:11:05,073 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 04:11:05,102 INFO  L276                IsEmpty]: Start isEmpty. Operand 322 states.
[2020-09-25 04:11:05,120 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 143
[2020-09-25 04:11:05,121 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 04:11:05,122 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 04:11:05,123 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 04:11:05,129 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 04:11:05,130 INFO  L82        PathProgramCache]: Analyzing trace with hash -1964738656, now seen corresponding path program 1 times
[2020-09-25 04:11:05,141 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 04:11:05,142 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [463865106]
[2020-09-25 04:11:05,142 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 04:11:05,501 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:05,692 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:05,904 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:07,307 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:08,339 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:10,560 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:10,561 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 173
[2020-09-25 04:11:10,561 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 4
[2020-09-25 04:11:10,561 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5050
[2020-09-25 04:11:10,565 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:10,565 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:10,566 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:10,566 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 129
[2020-09-25 04:11:10,566 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:10,566 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-25 04:11:10,992 WARN  L193               SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 04:11:10,996 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 04:11:11,032 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:11,045 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:11,168 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:11,169 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 04:11:11,169 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:11,169 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 134
[2020-09-25 04:11:11,169 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:11,170 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:11,170 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:11,170 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:11,170 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:11,171 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:11,242 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 04:11:11,243 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:11,244 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:11,246 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:11,246 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:11:11,247 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:11,247 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 04:11:11,247 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:11,247 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:11,248 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:11,248 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:11,248 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:11,248 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:11,250 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 04:11:11,251 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:11,252 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:11,254 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:11,254 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:11:11,254 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:11,255 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 04:11:11,255 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:11,255 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:11,255 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:11,256 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:11,256 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:11,256 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:11,257 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 04:11:11,258 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:11,259 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:11,264 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:11,264 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:11:11,264 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:11,265 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 04:11:11,265 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:11,265 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:11,265 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:11,266 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:11,266 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:11,266 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:11,268 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 04:11:11,269 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:11,270 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:11,272 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:11,272 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:11:11,272 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:11,272 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 04:11:11,272 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:11,273 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:11,273 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:11,273 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:11,273 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:11,274 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:11,275 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120
[2020-09-25 04:11:11,276 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:11,277 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:11,280 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:11,280 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:11:11,280 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:11,280 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 04:11:11,281 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:11,281 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:11,281 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:11,281 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 04:11:11,281 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:11,282 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:11,283 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130
[2020-09-25 04:11:11,285 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:11,286 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:11,288 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:11,288 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:11:11,289 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:11,289 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 04:11:11,289 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:11,289 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:11,289 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:11,290 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 04:11:11,290 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:11,290 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:11,344 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 04:11:11,345 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [463865106]
[2020-09-25 04:11:11,348 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 04:11:11,348 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-25 04:11:11,349 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681947734]
[2020-09-25 04:11:11,356 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-25 04:11:11,357 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 04:11:11,374 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-25 04:11:11,375 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-25 04:11:11,378 INFO  L87              Difference]: Start difference. First operand 322 states. Second operand 3 states.
[2020-09-25 04:11:12,909 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 04:11:12,910 INFO  L93              Difference]: Finished difference Result 512 states and 609 transitions.
[2020-09-25 04:11:12,910 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-09-25 04:11:12,912 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 142
[2020-09-25 04:11:12,913 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 04:11:12,933 INFO  L225             Difference]: With dead ends: 512
[2020-09-25 04:11:12,933 INFO  L226             Difference]: Without dead ends: 315
[2020-09-25 04:11:12,940 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-25 04:11:12,964 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 315 states.
[2020-09-25 04:11:13,049 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 271.
[2020-09-25 04:11:13,051 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 271 states.
[2020-09-25 04:11:13,054 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 295 transitions.
[2020-09-25 04:11:13,056 INFO  L78                 Accepts]: Start accepts. Automaton has 271 states and 295 transitions. Word has length 142
[2020-09-25 04:11:13,057 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 04:11:13,057 INFO  L479      AbstractCegarLoop]: Abstraction has 271 states and 295 transitions.
[2020-09-25 04:11:13,057 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-25 04:11:13,058 INFO  L276                IsEmpty]: Start isEmpty. Operand 271 states and 295 transitions.
[2020-09-25 04:11:13,062 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 144
[2020-09-25 04:11:13,063 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 04:11:13,063 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 04:11:13,063 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 04:11:13,064 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 04:11:13,064 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 04:11:13,064 INFO  L82        PathProgramCache]: Analyzing trace with hash -760083785, now seen corresponding path program 1 times
[2020-09-25 04:11:13,064 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 04:11:13,065 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1120078559]
[2020-09-25 04:11:13,065 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 04:11:13,128 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:13,195 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:13,305 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:14,735 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:15,394 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:18,182 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:18,183 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 174
[2020-09-25 04:11:18,183 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 4
[2020-09-25 04:11:18,184 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5049
[2020-09-25 04:11:18,184 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:18,185 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:18,185 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 04:11:18,185 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 128
[2020-09-25 04:11:18,186 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 3
[2020-09-25 04:11:18,186 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:18,612 WARN  L193               SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 04:11:18,614 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 04:11:18,634 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:18,652 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:18,756 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:18,757 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 04:11:18,757 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:18,757 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 119
[2020-09-25 04:11:18,757 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:18,758 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:18,758 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:18,758 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:18,758 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:18,758 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:18,794 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 04:11:18,795 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:18,797 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:18,798 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:18,798 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:11:18,799 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:18,799 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 04:11:18,799 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:18,800 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:18,800 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:18,800 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:18,800 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:18,801 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:18,803 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 04:11:18,804 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:18,805 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:18,807 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:18,807 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:11:18,808 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:18,808 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 04:11:18,808 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:18,808 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:18,809 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:18,809 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:18,809 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:18,809 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:18,811 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 04:11:18,812 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:18,814 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:18,817 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:18,818 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:11:18,818 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:18,818 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 04:11:18,818 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:18,819 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:18,819 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:18,819 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:18,819 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:18,819 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:18,821 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 04:11:18,822 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:18,823 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:18,825 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:18,825 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:11:18,826 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:18,826 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 04:11:18,826 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:18,827 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:18,827 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:18,827 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:18,827 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:18,827 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:18,829 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 04:11:18,830 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:18,832 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:18,834 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:18,834 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:11:18,835 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:18,835 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 04:11:18,835 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:18,835 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:18,836 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:18,836 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 04:11:18,836 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:18,836 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:18,838 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 04:11:18,839 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:18,840 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:18,842 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:18,842 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:11:18,842 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:18,842 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 04:11:18,843 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:18,843 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:18,843 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:18,843 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 04:11:18,843 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:18,844 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:18,874 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 04:11:18,877 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1120078559]
[2020-09-25 04:11:18,877 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 04:11:18,878 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-25 04:11:18,878 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273974410]
[2020-09-25 04:11:18,881 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-25 04:11:18,881 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 04:11:18,882 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-25 04:11:18,882 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-25 04:11:18,882 INFO  L87              Difference]: Start difference. First operand 271 states and 295 transitions. Second operand 4 states.
[2020-09-25 04:11:19,530 WARN  L193               SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 04:11:20,593 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 04:11:20,593 INFO  L93              Difference]: Finished difference Result 419 states and 472 transitions.
[2020-09-25 04:11:20,594 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-09-25 04:11:20,594 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 143
[2020-09-25 04:11:20,596 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 04:11:20,600 INFO  L225             Difference]: With dead ends: 419
[2020-09-25 04:11:20,600 INFO  L226             Difference]: Without dead ends: 298
[2020-09-25 04:11:20,602 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-09-25 04:11:20,603 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 298 states.
[2020-09-25 04:11:20,648 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 261.
[2020-09-25 04:11:20,648 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 261 states.
[2020-09-25 04:11:20,650 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 282 transitions.
[2020-09-25 04:11:20,650 INFO  L78                 Accepts]: Start accepts. Automaton has 261 states and 282 transitions. Word has length 143
[2020-09-25 04:11:20,651 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 04:11:20,651 INFO  L479      AbstractCegarLoop]: Abstraction has 261 states and 282 transitions.
[2020-09-25 04:11:20,651 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-25 04:11:20,651 INFO  L276                IsEmpty]: Start isEmpty. Operand 261 states and 282 transitions.
[2020-09-25 04:11:20,654 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 157
[2020-09-25 04:11:20,656 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 04:11:20,656 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 04:11:20,656 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 04:11:20,657 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 04:11:20,657 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 04:11:20,657 INFO  L82        PathProgramCache]: Analyzing trace with hash -815473591, now seen corresponding path program 1 times
[2020-09-25 04:11:20,657 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 04:11:20,658 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [47046714]
[2020-09-25 04:11:20,658 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 04:11:20,709 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:20,758 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:20,965 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:21,870 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:23,235 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:25,718 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:25,719 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 187
[2020-09-25 04:11:25,719 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 4
[2020-09-25 04:11:25,719 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5007
[2020-09-25 04:11:25,720 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:25,720 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:25,720 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 04:11:25,720 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 146
[2020-09-25 04:11:25,721 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-25 04:11:25,721 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:26,044 WARN  L193               SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 04:11:26,045 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 04:11:26,053 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:26,062 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:26,149 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:26,149 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 04:11:26,149 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:26,150 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 94
[2020-09-25 04:11:26,150 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:26,150 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:26,151 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:26,151 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:26,151 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:26,151 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:26,184 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 04:11:26,185 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:26,186 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:26,187 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:26,188 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:11:26,188 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:26,188 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 04:11:26,188 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:26,189 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:26,189 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:26,189 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:26,189 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:26,189 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:26,190 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 04:11:26,191 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:26,192 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:26,193 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:26,193 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:11:26,194 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:26,194 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 04:11:26,194 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:26,194 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:26,194 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:26,195 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:26,195 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:26,195 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:26,196 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 04:11:26,197 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:26,198 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:26,201 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:26,202 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:11:26,202 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:26,202 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 04:11:26,202 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:26,203 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:26,203 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:26,203 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:26,203 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:26,203 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:26,205 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 04:11:26,206 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:26,207 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:26,208 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:26,208 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:11:26,208 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:26,208 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 04:11:26,209 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:26,209 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:26,209 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:26,209 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:26,209 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:26,210 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:26,219 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124
[2020-09-25 04:11:26,221 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:26,222 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:26,225 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:26,225 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 04:11:26,226 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:26,226 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 04:11:26,226 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:26,226 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:26,227 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 04:11:26,227 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:26,227 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-25 04:11:26,227 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:26,230 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134
[2020-09-25 04:11:26,230 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:26,232 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:26,233 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:26,234 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:11:26,234 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:26,234 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 04:11:26,234 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:26,235 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:26,235 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:26,235 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 04:11:26,235 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:26,235 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 04:11:26,237 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144
[2020-09-25 04:11:26,238 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:26,239 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:26,241 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:26,241 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:11:26,241 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:26,241 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 04:11:26,242 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:26,242 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:26,242 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:26,242 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 04:11:26,242 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:26,243 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:26,304 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 04:11:26,304 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [47046714]
[2020-09-25 04:11:26,305 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 04:11:26,305 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 04:11:26,305 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535043471]
[2020-09-25 04:11:26,306 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 04:11:26,306 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 04:11:26,306 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 04:11:26,307 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-25 04:11:26,307 INFO  L87              Difference]: Start difference. First operand 261 states and 282 transitions. Second operand 5 states.
[2020-09-25 04:11:26,864 WARN  L193               SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 04:11:29,013 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 04:11:29,014 INFO  L93              Difference]: Finished difference Result 633 states and 733 transitions.
[2020-09-25 04:11:29,016 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-09-25 04:11:29,016 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 156
[2020-09-25 04:11:29,017 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 04:11:29,022 INFO  L225             Difference]: With dead ends: 633
[2020-09-25 04:11:29,022 INFO  L226             Difference]: Without dead ends: 482
[2020-09-25 04:11:29,024 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 04:11:29,025 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 482 states.
[2020-09-25 04:11:29,087 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 402.
[2020-09-25 04:11:29,088 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 402 states.
[2020-09-25 04:11:29,091 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 445 transitions.
[2020-09-25 04:11:29,091 INFO  L78                 Accepts]: Start accepts. Automaton has 402 states and 445 transitions. Word has length 156
[2020-09-25 04:11:29,092 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 04:11:29,092 INFO  L479      AbstractCegarLoop]: Abstraction has 402 states and 445 transitions.
[2020-09-25 04:11:29,092 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 04:11:29,092 INFO  L276                IsEmpty]: Start isEmpty. Operand 402 states and 445 transitions.
[2020-09-25 04:11:29,095 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 162
[2020-09-25 04:11:29,095 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 04:11:29,096 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 04:11:29,096 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 04:11:29,096 INFO  L427      AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 04:11:29,096 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 04:11:29,096 INFO  L82        PathProgramCache]: Analyzing trace with hash 870315564, now seen corresponding path program 1 times
[2020-09-25 04:11:29,097 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 04:11:29,097 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [432709200]
[2020-09-25 04:11:29,097 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 04:11:29,145 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:29,198 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:30,076 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:30,326 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:32,437 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:34,193 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:34,193 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 192
[2020-09-25 04:11:34,194 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 4
[2020-09-25 04:11:34,194 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5046
[2020-09-25 04:11:34,194 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:34,194 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:34,194 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-25 04:11:34,194 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 157
[2020-09-25 04:11:34,194 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 31
[2020-09-25 04:11:34,195 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 04:11:34,627 WARN  L193               SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 04:11:34,629 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 04:11:34,640 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:34,650 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:34,751 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:34,752 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 04:11:34,752 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:34,752 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 110
[2020-09-25 04:11:34,753 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:34,753 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:34,754 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:34,754 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:34,754 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:34,755 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:34,797 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 04:11:34,798 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:34,799 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:34,800 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:34,801 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:11:34,801 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:34,801 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 04:11:34,801 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:34,802 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:34,802 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:34,802 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:34,803 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:34,803 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:34,804 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 04:11:34,805 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:34,806 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:34,807 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:34,808 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:11:34,808 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:34,808 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 04:11:34,809 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:34,809 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:34,809 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:34,810 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:34,810 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:34,810 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:34,811 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 04:11:34,812 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:34,813 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:34,816 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:34,817 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:11:34,817 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:34,817 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 04:11:34,817 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:34,817 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:34,818 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:34,818 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:34,818 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:34,818 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:34,820 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 04:11:34,820 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:34,822 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:34,823 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:34,823 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:11:34,824 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:34,824 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 04:11:34,824 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:34,825 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:34,825 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:34,825 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:34,826 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:34,826 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:34,846 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128
[2020-09-25 04:11:34,847 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:34,849 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:34,850 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:34,851 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 04:11:34,851 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:34,852 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 04:11:34,852 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:34,852 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:34,853 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:34,853 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:34,853 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:34,854 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:34,855 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139
[2020-09-25 04:11:34,857 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:34,858 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:34,861 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:34,861 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:11:34,862 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:34,862 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 04:11:34,862 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:34,863 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:34,863 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 04:11:34,863 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:34,864 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 04:11:34,864 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:34,866 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149
[2020-09-25 04:11:34,867 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:34,869 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:34,875 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:34,875 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:11:34,876 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:34,876 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 04:11:34,876 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:34,876 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:34,876 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 04:11:34,877 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:34,877 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 04:11:34,877 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:34,959 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 04:11:34,960 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [432709200]
[2020-09-25 04:11:34,960 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 04:11:34,960 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2020-09-25 04:11:34,961 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179429466]
[2020-09-25 04:11:34,962 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-25 04:11:34,962 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 04:11:34,962 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-25 04:11:34,963 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2020-09-25 04:11:34,963 INFO  L87              Difference]: Start difference. First operand 402 states and 445 transitions. Second operand 9 states.
[2020-09-25 04:11:35,490 WARN  L193               SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 04:11:36,779 WARN  L193               SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 04:11:37,121 WARN  L193               SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 04:11:37,456 WARN  L193               SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 04:11:37,823 WARN  L193               SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-25 04:11:38,170 WARN  L193               SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-25 04:11:38,817 WARN  L193               SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 04:11:39,152 WARN  L193               SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 04:11:39,530 WARN  L193               SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 04:11:40,609 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 04:11:40,609 INFO  L93              Difference]: Finished difference Result 949 states and 1135 transitions.
[2020-09-25 04:11:40,610 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2020-09-25 04:11:40,610 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 161
[2020-09-25 04:11:40,611 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 04:11:40,617 INFO  L225             Difference]: With dead ends: 949
[2020-09-25 04:11:40,617 INFO  L226             Difference]: Without dead ends: 657
[2020-09-25 04:11:40,620 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342
[2020-09-25 04:11:40,621 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 657 states.
[2020-09-25 04:11:40,722 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 580.
[2020-09-25 04:11:40,723 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 580 states.
[2020-09-25 04:11:40,726 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 660 transitions.
[2020-09-25 04:11:40,727 INFO  L78                 Accepts]: Start accepts. Automaton has 580 states and 660 transitions. Word has length 161
[2020-09-25 04:11:40,728 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 04:11:40,728 INFO  L479      AbstractCegarLoop]: Abstraction has 580 states and 660 transitions.
[2020-09-25 04:11:40,728 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-09-25 04:11:40,728 INFO  L276                IsEmpty]: Start isEmpty. Operand 580 states and 660 transitions.
[2020-09-25 04:11:40,731 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 195
[2020-09-25 04:11:40,731 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 04:11:40,732 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 04:11:40,732 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-09-25 04:11:40,732 INFO  L427      AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 04:11:40,732 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 04:11:40,733 INFO  L82        PathProgramCache]: Analyzing trace with hash -1978598191, now seen corresponding path program 1 times
[2020-09-25 04:11:40,733 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 04:11:40,733 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1889128429]
[2020-09-25 04:11:40,733 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 04:11:40,779 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:40,830 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:41,221 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:45,790 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:45,790 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 235
[2020-09-25 04:11:45,790 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 04:11:45,790 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5008
[2020-09-25 04:11:45,790 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:45,791 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:45,791 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-25 04:11:45,791 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 183
[2020-09-25 04:11:45,791 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-25 04:11:45,791 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 04:11:46,089 WARN  L193               SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 04:11:46,090 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 04:11:46,096 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:46,104 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:46,185 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:46,186 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 04:11:46,186 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:46,186 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 88
[2020-09-25 04:11:46,186 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:46,187 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:46,187 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:46,187 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:46,187 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:46,187 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:46,216 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 04:11:46,217 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:46,218 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:46,219 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:46,220 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:11:46,220 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:46,220 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 04:11:46,220 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:46,221 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:46,221 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:46,221 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:46,221 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:46,221 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:46,223 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 04:11:46,223 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:46,224 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:46,225 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:46,225 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:11:46,226 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:46,226 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 04:11:46,226 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:46,226 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:46,226 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:46,227 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:46,227 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:46,227 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 04:11:46,228 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 04:11:46,229 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:46,230 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:46,233 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:46,234 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:11:46,234 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:46,234 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 04:11:46,234 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:46,235 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:46,235 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:46,235 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:46,235 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:46,235 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 04:11:46,237 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 04:11:46,237 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:46,238 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:46,239 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:46,240 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 04:11:46,240 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:46,240 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 04:11:46,240 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:46,240 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:46,241 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:46,241 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:46,241 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:46,241 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:46,252 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124
[2020-09-25 04:11:46,252 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:46,253 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:46,256 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:46,256 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 04:11:46,256 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:46,257 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 04:11:46,257 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:46,257 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:46,257 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:46,257 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:46,258 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:46,258 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 04:11:46,266 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 04:11:46,269 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:46,274 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:46,325 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:46,326 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 51
[2020-09-25 04:11:46,326 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:46,326 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 55
[2020-09-25 04:11:46,326 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:46,326 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:46,326 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-25 04:11:46,327 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 29
[2020-09-25 04:11:46,327 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-25 04:11:46,327 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 04:11:46,333 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 04:11:46,336 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:46,339 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:46,384 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:46,385 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 44
[2020-09-25 04:11:46,385 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:46,385 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 48
[2020-09-25 04:11:46,385 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:46,386 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:46,386 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-25 04:11:46,386 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 24
[2020-09-25 04:11:46,386 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-25 04:11:46,386 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 04:11:46,413 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 04:11:46,416 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:46,419 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:46,444 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:46,445 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 27
[2020-09-25 04:11:46,445 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:46,445 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 28
[2020-09-25 04:11:46,445 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:46,445 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:46,446 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 04:11:46,446 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:46,446 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 22
[2020-09-25 04:11:46,446 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:46,494 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 04:11:46,495 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:46,496 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:46,500 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:46,500 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 04:11:46,500 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:46,501 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 04:11:46,501 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:46,501 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:46,501 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:46,502 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 04:11:46,502 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:46,502 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:46,504 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26
[2020-09-25 04:11:46,505 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:46,506 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:46,507 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:46,508 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 04:11:46,508 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:46,508 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 04:11:46,508 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:46,509 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:46,509 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:46,509 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 6
[2020-09-25 04:11:46,509 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:46,510 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 04:11:46,513 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172
[2020-09-25 04:11:46,514 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:46,515 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:46,516 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:46,516 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:11:46,516 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:46,517 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 04:11:46,517 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:46,517 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:46,517 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:46,517 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 04:11:46,518 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:46,518 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 04:11:46,519 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182
[2020-09-25 04:11:46,520 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:46,521 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:46,522 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 04:11:46,522 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 04:11:46,523 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 04:11:46,523 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 04:11:46,523 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 04:11:46,523 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 04:11:46,523 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 04:11:46,524 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 04:11:46,524 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 04:11:46,524 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 04:11:46,565 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 04:11:46,566 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1889128429]
[2020-09-25 04:11:46,566 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 04:11:46,566 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2020-09-25 04:11:46,566 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546868434]
[2020-09-25 04:11:46,567 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 10 states
[2020-09-25 04:11:46,567 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 04:11:46,568 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2020-09-25 04:11:46,568 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90
[2020-09-25 04:11:46,568 INFO  L87              Difference]: Start difference. First operand 580 states and 660 transitions. Second operand 10 states.
[2020-09-25 04:11:48,014 WARN  L193               SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 04:11:48,333 WARN  L193               SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-25 04:11:48,639 WARN  L193               SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-25 04:11:48,977 WARN  L193               SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 04:11:49,313 WARN  L193               SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-25 04:11:49,633 WARN  L193               SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 04:11:50,819 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 04:11:50,820 INFO  L93              Difference]: Finished difference Result 1225 states and 1481 transitions.
[2020-09-25 04:11:50,821 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-25 04:11:50,821 INFO  L78                 Accepts]: Start accepts. Automaton has 10 states. Word has length 194
[2020-09-25 04:11:50,822 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 04:11:50,828 INFO  L225             Difference]: With dead ends: 1225
[2020-09-25 04:11:50,828 INFO  L226             Difference]: Without dead ends: 755
[2020-09-25 04:11:50,830 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 04:11:50,831 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 755 states.
[2020-09-25 04:11:50,912 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 599.
[2020-09-25 04:11:50,912 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 599 states.
[2020-09-25 04:11:50,916 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 680 transitions.
[2020-09-25 04:11:50,917 INFO  L78                 Accepts]: Start accepts. Automaton has 599 states and 680 transitions. Word has length 194
[2020-09-25 04:11:50,917 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 04:11:50,917 INFO  L479      AbstractCegarLoop]: Abstraction has 599 states and 680 transitions.
[2020-09-25 04:11:50,918 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 10 states.
[2020-09-25 04:11:50,918 INFO  L276                IsEmpty]: Start isEmpty. Operand 599 states and 680 transitions.
[2020-09-25 04:11:50,920 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 195
[2020-09-25 04:11:50,921 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 04:11:50,921 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 04:11:50,921 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-09-25 04:11:50,921 INFO  L427      AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 04:11:50,922 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 04:11:50,922 INFO  L82        PathProgramCache]: Analyzing trace with hash 1342498929, now seen corresponding path program 1 times
[2020-09-25 04:11:50,922 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 04:11:50,922 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1032353303]
[2020-09-25 04:11:50,923 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 04:11:50,967 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 04:11:51,021 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 04:11:51,392 FATAL L256   erpolLogProxyWrapper]: Now shrinking...