/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=1.0 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product27.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 08:38:40,984 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 08:38:40,988 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 08:38:41,017 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 08:38:41,017 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 08:38:41,019 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 08:38:41,020 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 08:38:41,022 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 08:38:41,024 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 08:38:41,025 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 08:38:41,027 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 08:38:41,028 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 08:38:41,028 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 08:38:41,030 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 08:38:41,031 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 08:38:41,033 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 08:38:41,034 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 08:38:41,035 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 08:38:41,037 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 08:38:41,039 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 08:38:41,041 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 08:38:41,043 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 08:38:41,044 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 08:38:41,045 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 08:38:41,048 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 08:38:41,049 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 08:38:41,049 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 08:38:41,050 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 08:38:41,051 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 08:38:41,052 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 08:38:41,052 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 08:38:41,053 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 08:38:41,054 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 08:38:41,055 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 08:38:41,056 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 08:38:41,057 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 08:38:41,058 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 08:38:41,058 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 08:38:41,058 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 08:38:41,059 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 08:38:41,060 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 08:38:41,061 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 08:38:41,102 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 08:38:41,102 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 08:38:41,105 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 08:38:41,106 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 08:38:41,106 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 08:38:41,106 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 08:38:41,106 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 08:38:41,107 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 08:38:41,107 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 08:38:41,107 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 08:38:41,108 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 08:38:41,108 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 08:38:41,109 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 08:38:41,109 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 08:38:41,109 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 08:38:41,110 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 08:38:41,110 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 08:38:41,110 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 08:38:41,111 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 08:38:41,111 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 08:38:41,111 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 08:38:41,112 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 08:38:41,112 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 08:38:41,112 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 08:38:41,112 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 08:38:41,113 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 08:38:41,113 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 08:38:41,113 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 08:38:41,114 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 08:38:41,114 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=1.0;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=1.0;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=1.0;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=1.0;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=1.0;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=1.0;log-additional-information=true;
[2020-09-25 08:38:41,566 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 08:38:41,584 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 08:38:41,588 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 08:38:41,590 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 08:38:41,590 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 08:38:41,591 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product27.cil.c
[2020-09-25 08:38:41,676 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d665b922b/229eb665a5a04a5fa78b6e804a266c92/FLAG44e9bbaa8
[2020-09-25 08:38:42,335 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 08:38:42,336 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product27.cil.c
[2020-09-25 08:38:42,351 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d665b922b/229eb665a5a04a5fa78b6e804a266c92/FLAG44e9bbaa8
[2020-09-25 08:38:42,588 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d665b922b/229eb665a5a04a5fa78b6e804a266c92
[2020-09-25 08:38:42,608 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 08:38:42,615 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 08:38:42,619 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 08:38:42,620 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 08:38:42,624 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 08:38:42,625 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:38:42" (1/1) ...
[2020-09-25 08:38:42,631 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26e5903c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:42, skipping insertion in model container
[2020-09-25 08:38:42,631 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:38:42" (1/1) ...
[2020-09-25 08:38:42,642 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 08:38:42,718 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 08:38:43,064 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 08:38:43,182 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 08:38:43,278 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 08:38:43,326 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 08:38:43,328 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:43 WrapperNode
[2020-09-25 08:38:43,328 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 08:38:43,329 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 08:38:43,329 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 08:38:43,330 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 08:38:43,345 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:43" (1/1) ...
[2020-09-25 08:38:43,346 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:43" (1/1) ...
[2020-09-25 08:38:43,372 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:43" (1/1) ...
[2020-09-25 08:38:43,373 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:43" (1/1) ...
[2020-09-25 08:38:43,420 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:43" (1/1) ...
[2020-09-25 08:38:43,434 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:43" (1/1) ...
[2020-09-25 08:38:43,439 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:43" (1/1) ...
[2020-09-25 08:38:43,458 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 08:38:43,462 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 08:38:43,462 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 08:38:43,463 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 08:38:43,466 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:43" (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 08:38:43,573 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 08:38:43,573 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 08:38:43,573 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 08:38:43,574 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 08:38:43,574 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 08:38:43,574 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 08:38:43,574 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 08:38:43,575 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 08:38:43,575 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 08:38:43,575 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1
[2020-09-25 08:38:43,575 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2
[2020-09-25 08:38:43,575 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 08:38:43,576 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 08:38:43,576 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 08:38:43,576 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 08:38:43,576 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 08:38:43,577 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 08:38:43,577 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-25 08:38:43,577 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 08:38:43,577 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 08:38:43,578 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 08:38:43,578 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 08:38:43,578 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 08:38:43,578 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 08:38:43,578 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 08:38:43,578 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 08:38:43,579 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 08:38:43,579 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 08:38:43,579 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 08:38:43,579 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-25 08:38:43,579 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 08:38:43,579 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor
[2020-09-25 08:38:43,580 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 08:38:43,580 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 08:38:43,580 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 08:38:43,580 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 08:38:43,580 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 08:38:43,580 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-25 08:38:43,580 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-25 08:38:43,581 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 08:38:43,581 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 08:38:43,581 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 08:38:43,581 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 08:38:43,581 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 08:38:43,581 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 08:38:43,582 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 08:38:43,582 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 08:38:43,582 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 08:38:43,582 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 08:38:43,582 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 08:38:43,583 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 08:38:43,583 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 08:38:43,583 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 08:38:43,583 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 08:38:43,583 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 08:38:43,583 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 08:38:43,584 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 08:38:43,584 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 08:38:43,584 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 08:38:43,584 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 08:38:43,584 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 08:38:43,584 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 08:38:43,584 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 08:38:43,585 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1
[2020-09-25 08:38:43,585 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2
[2020-09-25 08:38:43,585 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 08:38:43,585 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 08:38:43,585 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 08:38:43,585 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 08:38:43,586 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 08:38:43,586 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-25 08:38:43,586 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 08:38:43,586 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 08:38:43,586 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 08:38:43,586 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 08:38:43,587 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 08:38:43,587 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 08:38:43,587 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 08:38:43,587 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 08:38:43,587 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 08:38:43,588 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 08:38:43,588 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 08:38:43,588 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-25 08:38:43,588 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 08:38:43,588 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 08:38:43,588 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 08:38:43,589 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 08:38:43,589 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-25 08:38:43,589 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-25 08:38:43,589 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor
[2020-09-25 08:38:43,589 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 08:38:43,589 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 08:38:43,589 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 08:38:43,590 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 08:38:44,821 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 08:38:44,822 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 08:38:44,829 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:38:44 BoogieIcfgContainer
[2020-09-25 08:38:44,829 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 08:38:44,831 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 08:38:44,831 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 08:38:44,835 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 08:38:44,835 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:38:42" (1/3) ...
[2020-09-25 08:38:44,836 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33feea1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:38:44, skipping insertion in model container
[2020-09-25 08:38:44,836 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:43" (2/3) ...
[2020-09-25 08:38:44,837 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33feea1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:38:44, skipping insertion in model container
[2020-09-25 08:38:44,837 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:38:44" (3/3) ...
[2020-09-25 08:38:44,839 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec2_product27.cil.c
[2020-09-25 08:38:44,851 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 08:38:44,863 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 08:38:44,885 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 08:38:44,916 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 08:38:44,916 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 08:38:44,916 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 08:38:44,917 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 08:38:44,917 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 08:38:44,917 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 08:38:44,917 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 08:38:44,917 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 08:38:44,946 INFO  L276                IsEmpty]: Start isEmpty. Operand 306 states.
[2020-09-25 08:38:44,964 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 149
[2020-09-25 08:38:44,965 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 08:38:44,966 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 08:38:44,967 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 08:38:44,974 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 08:38:44,975 INFO  L82        PathProgramCache]: Analyzing trace with hash -814474831, now seen corresponding path program 1 times
[2020-09-25 08:38:44,986 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 08:38:44,986 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [861011227]
[2020-09-25 08:38:44,987 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 08:38:45,309 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:45,486 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:45,696 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:47,294 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:48,185 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:48,829 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:50,352 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:50,353 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 181
[2020-09-25 08:38:50,354 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-25 08:38:50,355 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5033
[2020-09-25 08:38:50,360 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:50,360 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:50,361 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:50,361 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 136
[2020-09-25 08:38:50,362 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:50,371 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 16
[2020-09-25 08:38:50,992 WARN  L193               SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 08:38:50,997 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 08:38:51,028 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:51,041 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:51,151 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:51,152 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-25 08:38:51,152 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:51,152 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 121
[2020-09-25 08:38:51,153 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:51,153 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:51,153 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:51,153 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:51,154 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:51,154 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:51,237 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-25 08:38:51,238 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:51,240 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:51,242 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:51,242 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:38:51,242 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:51,243 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:38:51,243 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:51,243 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:51,243 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:51,243 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:51,244 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:51,244 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:51,248 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-25 08:38:51,249 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:51,251 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:51,252 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:51,253 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:38:51,253 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:51,253 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:38:51,253 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:51,254 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:51,254 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:51,254 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:51,254 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:51,254 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:51,256 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-25 08:38:51,258 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:51,259 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:51,274 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:51,274 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:38:51,274 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:51,275 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 15
[2020-09-25 08:38:51,275 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:51,275 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:51,275 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:51,276 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:51,276 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:51,276 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:51,281 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-25 08:38:51,282 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:51,283 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:51,285 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:51,285 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:38:51,285 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:51,286 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:38:51,286 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:51,286 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:51,286 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:51,287 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:51,288 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:51,289 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 08:38:51,298 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-25 08:38:51,299 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:51,301 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:51,302 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:51,302 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 08:38:51,303 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:51,303 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:38:51,303 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:51,303 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:51,303 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:51,304 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:51,304 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:51,304 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:51,307 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125
[2020-09-25 08:38:51,309 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:51,311 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:51,313 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:51,314 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:38:51,314 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:51,314 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:38:51,315 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:51,315 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:51,315 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:51,315 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 08:38:51,316 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:51,316 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:51,319 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135
[2020-09-25 08:38:51,320 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:51,322 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:51,323 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:51,324 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:38:51,324 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:51,324 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:38:51,324 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:51,325 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:51,325 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:51,325 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 08:38:51,325 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:51,326 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:51,366 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 08:38:51,367 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [861011227]
[2020-09-25 08:38:51,370 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 08:38:51,371 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-25 08:38:51,372 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023503380]
[2020-09-25 08:38:51,384 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-25 08:38:51,389 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 08:38:51,439 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-25 08:38:51,440 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2020-09-25 08:38:51,442 INFO  L87              Difference]: Start difference. First operand 306 states. Second operand 4 states.
[2020-09-25 08:38:52,612 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 08:38:52,612 INFO  L93              Difference]: Finished difference Result 441 states and 525 transitions.
[2020-09-25 08:38:52,613 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2020-09-25 08:38:52,614 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 148
[2020-09-25 08:38:52,616 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 08:38:52,636 INFO  L225             Difference]: With dead ends: 441
[2020-09-25 08:38:52,636 INFO  L226             Difference]: Without dead ends: 287
[2020-09-25 08:38:52,642 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2020-09-25 08:38:52,667 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 287 states.
[2020-09-25 08:38:52,754 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 239.
[2020-09-25 08:38:52,757 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 239 states.
[2020-09-25 08:38:52,762 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 259 transitions.
[2020-09-25 08:38:52,767 INFO  L78                 Accepts]: Start accepts. Automaton has 239 states and 259 transitions. Word has length 148
[2020-09-25 08:38:52,770 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 08:38:52,770 INFO  L479      AbstractCegarLoop]: Abstraction has 239 states and 259 transitions.
[2020-09-25 08:38:52,771 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-25 08:38:52,771 INFO  L276                IsEmpty]: Start isEmpty. Operand 239 states and 259 transitions.
[2020-09-25 08:38:52,781 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 150
[2020-09-25 08:38:52,781 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 08:38:52,782 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 08:38:52,783 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 08:38:52,783 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 08:38:52,783 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 08:38:52,783 INFO  L82        PathProgramCache]: Analyzing trace with hash 350182576, now seen corresponding path program 1 times
[2020-09-25 08:38:52,784 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 08:38:52,784 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [890008530]
[2020-09-25 08:38:52,784 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 08:38:52,871 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:52,926 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:53,016 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:54,472 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:55,237 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:55,869 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:57,456 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:57,923 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:57,923 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 182
[2020-09-25 08:38:57,924 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 6
[2020-09-25 08:38:57,924 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5048
[2020-09-25 08:38:57,924 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:57,924 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:57,925 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:38:57,925 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 135
[2020-09-25 08:38:57,925 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 3
[2020-09-25 08:38:57,925 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:58,256 WARN  L193               SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 08:38:58,257 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 08:38:58,267 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:58,278 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:58,372 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:58,373 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-25 08:38:58,373 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:58,373 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 103
[2020-09-25 08:38:58,373 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:58,374 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:58,374 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:58,374 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:58,374 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:58,375 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:58,413 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-25 08:38:58,414 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:58,415 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:58,417 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:58,417 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:38:58,417 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:58,418 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:38:58,418 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:58,418 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:58,418 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:58,419 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:58,419 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:58,419 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:58,420 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-25 08:38:58,421 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:58,423 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:58,424 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:58,425 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:38:58,425 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:58,425 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:38:58,426 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:58,426 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:58,426 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:58,426 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:58,427 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:58,427 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:58,428 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-25 08:38:58,429 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:58,430 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:58,436 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:58,436 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:38:58,436 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:58,437 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 08:38:58,437 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:58,437 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:58,437 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:58,437 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:58,438 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:58,438 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:58,440 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-25 08:38:58,440 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:58,441 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:58,443 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:58,443 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:38:58,443 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:58,443 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:38:58,475 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:58,476 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:58,476 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:58,476 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:58,476 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:58,477 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:58,491 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-25 08:38:58,492 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:58,493 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:58,494 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:58,494 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 08:38:58,494 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:58,494 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 08:38:58,494 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:58,495 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:58,495 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:58,495 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:58,495 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:58,495 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 08:38:58,497 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126
[2020-09-25 08:38:58,497 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:58,499 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:58,500 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:58,500 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:38:58,500 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:58,501 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:38:58,501 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:58,501 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:58,501 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:58,502 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 08:38:58,502 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:58,502 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:58,503 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136
[2020-09-25 08:38:58,504 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:58,505 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:58,507 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:58,507 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:38:58,507 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:58,508 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:38:58,508 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:58,508 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:58,508 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:58,509 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 08:38:58,509 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:58,509 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:58,534 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 08:38:58,535 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [890008530]
[2020-09-25 08:38:58,535 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 08:38:58,535 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 08:38:58,536 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274806847]
[2020-09-25 08:38:58,538 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 08:38:58,538 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 08:38:58,539 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 08:38:58,539 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-25 08:38:58,539 INFO  L87              Difference]: Start difference. First operand 239 states and 259 transitions. Second operand 5 states.
[2020-09-25 08:38:59,217 WARN  L193               SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 08:39:00,137 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 08:39:00,138 INFO  L93              Difference]: Finished difference Result 364 states and 412 transitions.
[2020-09-25 08:39:00,140 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-09-25 08:39:00,140 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 149
[2020-09-25 08:39:00,141 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 08:39:00,147 INFO  L225             Difference]: With dead ends: 364
[2020-09-25 08:39:00,147 INFO  L226             Difference]: Without dead ends: 276
[2020-09-25 08:39:00,151 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 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 08:39:00,152 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 276 states.
[2020-09-25 08:39:00,241 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 229.
[2020-09-25 08:39:00,241 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 229 states.
[2020-09-25 08:39:00,244 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 246 transitions.
[2020-09-25 08:39:00,244 INFO  L78                 Accepts]: Start accepts. Automaton has 229 states and 246 transitions. Word has length 149
[2020-09-25 08:39:00,247 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 08:39:00,247 INFO  L479      AbstractCegarLoop]: Abstraction has 229 states and 246 transitions.
[2020-09-25 08:39:00,248 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 08:39:00,248 INFO  L276                IsEmpty]: Start isEmpty. Operand 229 states and 246 transitions.
[2020-09-25 08:39:00,252 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 159
[2020-09-25 08:39:00,253 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 08:39:00,253 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 08:39:00,253 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 08:39:00,254 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 08:39:00,254 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 08:39:00,254 INFO  L82        PathProgramCache]: Analyzing trace with hash 1011133408, now seen corresponding path program 1 times
[2020-09-25 08:39:00,254 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 08:39:00,255 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [680376058]
[2020-09-25 08:39:00,255 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 08:39:00,316 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:00,370 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:00,950 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:01,778 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:03,055 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:04,019 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:05,337 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:05,338 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 189
[2020-09-25 08:39:05,338 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-25 08:39:05,339 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5019
[2020-09-25 08:39:05,339 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:05,340 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:05,340 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 12
[2020-09-25 08:39:05,341 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 80
[2020-09-25 08:39:05,341 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 92
[2020-09-25 08:39:05,341 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:05,759 WARN  L193               SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 08:39:05,760 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 08:39:05,793 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:05,831 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:06,028 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:06,028 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-25 08:39:06,029 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:06,029 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 233
[2020-09-25 08:39:06,029 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:06,029 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:06,029 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:39:06,030 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:06,030 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 76
[2020-09-25 08:39:06,030 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 08:39:06,073 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-25 08:39:06,074 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:06,075 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:06,077 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:06,078 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:39:06,078 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:06,078 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:39:06,078 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:06,078 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:06,079 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:39:06,079 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:06,079 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 08:39:06,079 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:06,080 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-25 08:39:06,081 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:06,082 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:06,085 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:06,085 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:39:06,085 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:06,085 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:39:06,086 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:06,086 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:06,086 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:39:06,086 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:06,086 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 08:39:06,086 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:06,088 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-25 08:39:06,089 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:06,090 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:06,097 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:06,097 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:39:06,098 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:06,098 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 08:39:06,098 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:06,098 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:06,098 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:39:06,099 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:06,099 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 08:39:06,099 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:06,101 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-25 08:39:06,102 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:06,103 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:06,105 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:06,105 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:39:06,105 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:06,106 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:39:06,106 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:06,106 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:06,106 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:39:06,106 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:06,106 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 08:39:06,107 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 08:39:06,118 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-25 08:39:06,120 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:06,121 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:06,124 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:06,124 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 08:39:06,124 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:06,125 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:39:06,125 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:06,125 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:06,125 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:39:06,125 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:06,126 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-09-25 08:39:06,126 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:06,127 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135
[2020-09-25 08:39:06,128 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:06,130 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:06,136 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:06,136 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:39:06,137 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:06,137 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 08:39:06,137 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:06,137 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:06,138 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 08:39:06,138 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:06,138 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 08:39:06,138 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:06,160 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145
[2020-09-25 08:39:06,161 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:06,163 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:06,164 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:06,164 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:39:06,164 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:06,165 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:39:06,165 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:06,165 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:06,165 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:06,165 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 08:39:06,166 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:06,166 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:06,197 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 08:39:06,198 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [680376058]
[2020-09-25 08:39:06,198 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 08:39:06,198 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2020-09-25 08:39:06,199 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976609611]
[2020-09-25 08:39:06,199 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-25 08:39:06,200 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 08:39:06,200 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-25 08:39:06,200 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2020-09-25 08:39:06,200 INFO  L87              Difference]: Start difference. First operand 229 states and 246 transitions. Second operand 9 states.
[2020-09-25 08:39:06,764 WARN  L193               SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-25 08:39:08,280 WARN  L193               SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-25 08:39:08,571 WARN  L193               SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-25 08:39:08,979 WARN  L193               SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-25 08:39:09,315 WARN  L193               SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-25 08:39:09,592 WARN  L193               SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-25 08:39:09,954 WARN  L193               SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-25 08:39:10,277 WARN  L193               SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-25 08:39:10,765 WARN  L193               SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 08:39:11,577 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 08:39:11,578 INFO  L93              Difference]: Finished difference Result 508 states and 595 transitions.
[2020-09-25 08:39:11,578 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. 
[2020-09-25 08:39:11,578 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 158
[2020-09-25 08:39:11,579 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 08:39:11,583 INFO  L225             Difference]: With dead ends: 508
[2020-09-25 08:39:11,583 INFO  L226             Difference]: Without dead ends: 394
[2020-09-25 08:39:11,585 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380
[2020-09-25 08:39:11,586 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 394 states.
[2020-09-25 08:39:11,637 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 325.
[2020-09-25 08:39:11,637 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 325 states.
[2020-09-25 08:39:11,639 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 357 transitions.
[2020-09-25 08:39:11,639 INFO  L78                 Accepts]: Start accepts. Automaton has 325 states and 357 transitions. Word has length 158
[2020-09-25 08:39:11,640 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 08:39:11,640 INFO  L479      AbstractCegarLoop]: Abstraction has 325 states and 357 transitions.
[2020-09-25 08:39:11,640 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-09-25 08:39:11,640 INFO  L276                IsEmpty]: Start isEmpty. Operand 325 states and 357 transitions.
[2020-09-25 08:39:11,642 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 164
[2020-09-25 08:39:11,643 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 08:39:11,643 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]
[2020-09-25 08:39:11,643 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 08:39:11,643 INFO  L427      AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 08:39:11,643 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 08:39:11,644 INFO  L82        PathProgramCache]: Analyzing trace with hash -205614873, now seen corresponding path program 1 times
[2020-09-25 08:39:11,644 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 08:39:11,644 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [439713331]
[2020-09-25 08:39:11,645 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 08:39:11,691 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:11,743 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:12,302 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:12,749 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:13,236 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:16,706 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:16,706 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 196
[2020-09-25 08:39:16,707 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 4
[2020-09-25 08:39:16,707 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5012
[2020-09-25 08:39:16,707 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:16,707 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:16,707 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 08:39:16,708 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 83
[2020-09-25 08:39:16,708 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 79
[2020-09-25 08:39:16,708 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 08:39:17,042 WARN  L193               SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 08:39:17,043 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 08:39:17,076 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:17,121 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:17,322 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:17,323 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-25 08:39:17,323 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:17,323 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 245
[2020-09-25 08:39:17,323 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:17,324 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:17,324 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:39:17,324 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:17,324 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 79
[2020-09-25 08:39:17,325 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:17,369 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-25 08:39:17,370 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:17,371 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:17,373 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:17,373 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:39:17,374 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:17,374 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:39:17,374 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:17,374 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:17,374 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:39:17,375 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:17,375 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 08:39:17,375 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 08:39:17,376 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-25 08:39:17,378 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:17,379 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:17,382 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:17,382 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:39:17,382 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:17,382 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:39:17,383 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:17,383 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:17,383 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:39:17,383 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:17,383 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 08:39:17,384 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:17,385 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-25 08:39:17,386 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:17,389 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:17,395 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:17,396 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:39:17,396 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:17,396 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 08:39:17,396 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:17,396 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:17,397 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:39:17,397 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:17,397 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 08:39:17,397 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:17,400 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-25 08:39:17,401 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:17,402 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:17,404 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:17,404 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:39:17,405 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:17,405 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:39:17,405 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:17,405 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:17,405 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:39:17,406 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:17,406 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 08:39:17,406 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:17,417 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-25 08:39:17,418 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:17,419 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:17,421 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:17,422 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 08:39:17,422 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:17,422 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:39:17,422 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:17,422 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:17,423 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:39:17,423 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:17,423 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-09-25 08:39:17,423 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:17,434 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125
[2020-09-25 08:39:17,435 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:17,437 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:17,441 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:17,441 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 08:39:17,441 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:17,441 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 08:39:17,442 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:17,442 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:17,442 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:39:17,442 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:17,442 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 08:39:17,443 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:17,444 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140
[2020-09-25 08:39:17,445 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:17,446 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:17,448 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:17,448 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:39:17,448 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:17,448 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:39:17,448 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:17,449 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:17,449 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:17,449 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 08:39:17,449 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:17,449 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:17,451 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150
[2020-09-25 08:39:17,452 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:17,453 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:17,454 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:17,454 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:39:17,454 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:17,455 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:39:17,455 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:17,455 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:17,455 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:17,455 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 08:39:17,456 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:17,456 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:17,489 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 08:39:17,489 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [439713331]
[2020-09-25 08:39:17,490 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 08:39:17,490 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-09-25 08:39:17,490 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280696818]
[2020-09-25 08:39:17,491 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-25 08:39:17,491 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 08:39:17,491 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-25 08:39:17,492 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-25 08:39:17,492 INFO  L87              Difference]: Start difference. First operand 325 states and 357 transitions. Second operand 6 states.
[2020-09-25 08:39:18,020 WARN  L193               SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-25 08:39:19,880 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 08:39:19,881 INFO  L93              Difference]: Finished difference Result 874 states and 1033 transitions.
[2020-09-25 08:39:19,881 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2020-09-25 08:39:19,882 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 163
[2020-09-25 08:39:19,883 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 08:39:19,888 INFO  L225             Difference]: With dead ends: 874
[2020-09-25 08:39:19,888 INFO  L226             Difference]: Without dead ends: 664
[2020-09-25 08:39:19,891 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110
[2020-09-25 08:39:19,892 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 664 states.
[2020-09-25 08:39:19,963 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 526.
[2020-09-25 08:39:19,963 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 526 states.
[2020-09-25 08:39:19,966 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 591 transitions.
[2020-09-25 08:39:19,967 INFO  L78                 Accepts]: Start accepts. Automaton has 526 states and 591 transitions. Word has length 163
[2020-09-25 08:39:19,967 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 08:39:19,967 INFO  L479      AbstractCegarLoop]: Abstraction has 526 states and 591 transitions.
[2020-09-25 08:39:19,968 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-09-25 08:39:19,968 INFO  L276                IsEmpty]: Start isEmpty. Operand 526 states and 591 transitions.
[2020-09-25 08:39:19,970 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 172
[2020-09-25 08:39:19,971 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 08:39:19,971 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]
[2020-09-25 08:39:19,971 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-09-25 08:39:19,971 INFO  L427      AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 08:39:19,971 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 08:39:19,972 INFO  L82        PathProgramCache]: Analyzing trace with hash 1322428812, now seen corresponding path program 1 times
[2020-09-25 08:39:19,972 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 08:39:19,972 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1607540769]
[2020-09-25 08:39:19,972 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 08:39:20,013 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:20,055 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:20,188 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:20,650 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:22,553 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:25,040 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:25,040 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 208
[2020-09-25 08:39:25,041 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 4
[2020-09-25 08:39:25,041 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5025
[2020-09-25 08:39:25,041 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:25,041 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:25,041 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 08:39:25,041 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 124
[2020-09-25 08:39:25,042 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 80
[2020-09-25 08:39:25,042 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 08:39:25,382 WARN  L193               SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 08:39:25,383 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 08:39:25,391 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:25,400 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:25,474 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:25,474 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-25 08:39:25,474 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:25,474 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 81
[2020-09-25 08:39:25,475 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:25,475 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:25,475 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:25,475 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:25,475 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:25,475 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 08:39:25,502 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-25 08:39:25,503 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:25,504 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:25,505 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:25,505 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:39:25,505 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:25,505 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 08:39:25,505 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:25,506 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:25,506 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:25,506 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:25,506 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:25,506 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 08:39:25,507 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-25 08:39:25,508 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:25,509 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:25,510 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:25,510 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:39:25,510 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:25,510 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 08:39:25,511 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:25,511 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:25,511 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:25,511 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:25,511 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:25,512 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 08:39:25,513 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-25 08:39:25,513 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:25,514 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:25,517 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:25,518 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:39:25,518 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:25,518 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:39:25,518 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:25,519 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:25,519 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:25,519 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:25,519 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:25,519 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:25,521 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-25 08:39:25,522 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:25,522 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:25,523 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:25,524 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:39:25,524 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:25,524 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 08:39:25,524 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:25,524 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:25,525 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:25,525 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:25,525 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:25,525 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 08:39:25,537 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-25 08:39:25,538 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:25,540 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:25,542 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:25,542 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 08:39:25,542 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:25,542 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:39:25,543 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:25,543 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:25,543 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:39:25,543 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:25,543 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-25 08:39:25,543 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 08:39:25,553 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125
[2020-09-25 08:39:25,554 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:25,556 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:25,561 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:25,561 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 08:39:25,561 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:25,562 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 08:39:25,562 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:25,562 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:25,562 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:39:25,562 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:25,563 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 08:39:25,563 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:25,577 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137
[2020-09-25 08:39:25,578 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:25,579 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:25,582 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:25,582 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-25 08:39:25,582 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:25,582 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:39:25,582 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:25,583 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:25,583 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:39:25,583 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:25,583 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 11
[2020-09-25 08:39:25,583 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 08:39:25,585 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 08:39:25,585 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:25,586 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:25,587 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:25,587 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:39:25,587 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:25,587 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 08:39:25,588 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:25,588 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:25,588 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:25,588 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:25,588 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:25,589 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:25,590 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148
[2020-09-25 08:39:25,591 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:25,592 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:25,594 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:25,594 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:39:25,595 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:25,595 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:39:25,595 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:25,595 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:25,595 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:39:25,596 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:25,596 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 08:39:25,596 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:25,598 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158
[2020-09-25 08:39:25,599 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:25,600 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:25,602 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:25,602 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:39:25,602 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:25,602 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:39:25,603 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:25,603 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:25,603 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:39:25,603 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:25,603 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 08:39:25,604 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:25,638 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 08:39:25,639 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1607540769]
[2020-09-25 08:39:25,639 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 08:39:25,639 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-09-25 08:39:25,639 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129344349]
[2020-09-25 08:39:25,640 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-09-25 08:39:25,640 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 08:39:25,640 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-09-25 08:39:25,641 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2020-09-25 08:39:25,641 INFO  L87              Difference]: Start difference. First operand 526 states and 591 transitions. Second operand 7 states.
[2020-09-25 08:39:26,229 WARN  L193               SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-25 08:39:28,650 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 08:39:28,650 INFO  L93              Difference]: Finished difference Result 1463 states and 1901 transitions.
[2020-09-25 08:39:28,651 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. 
[2020-09-25 08:39:28,651 INFO  L78                 Accepts]: Start accepts. Automaton has 7 states. Word has length 171
[2020-09-25 08:39:28,651 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 08:39:28,661 INFO  L225             Difference]: With dead ends: 1463
[2020-09-25 08:39:28,662 INFO  L226             Difference]: Without dead ends: 1460
[2020-09-25 08:39:28,663 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342
[2020-09-25 08:39:28,665 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1460 states.
[2020-09-25 08:39:28,840 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1460 to 755.
[2020-09-25 08:39:28,840 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 755 states.
[2020-09-25 08:39:28,844 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 858 transitions.
[2020-09-25 08:39:28,845 INFO  L78                 Accepts]: Start accepts. Automaton has 755 states and 858 transitions. Word has length 171
[2020-09-25 08:39:28,845 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 08:39:28,845 INFO  L479      AbstractCegarLoop]: Abstraction has 755 states and 858 transitions.
[2020-09-25 08:39:28,846 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-09-25 08:39:28,846 INFO  L276                IsEmpty]: Start isEmpty. Operand 755 states and 858 transitions.
[2020-09-25 08:39:28,850 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 219
[2020-09-25 08:39:28,850 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 08:39:28,851 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:39:28,851 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-09-25 08:39:28,851 INFO  L427      AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 08:39:28,852 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 08:39:28,852 INFO  L82        PathProgramCache]: Analyzing trace with hash -887449225, now seen corresponding path program 1 times
[2020-09-25 08:39:28,852 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 08:39:28,852 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1429517849]
[2020-09-25 08:39:28,852 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 08:39:28,899 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:28,951 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:29,082 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:29,217 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:30,294 FATAL L256   erpolLogProxyWrapper]: Now shrinking...