/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 log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 16:44:52,777 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 16:44:52,781 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 16:44:52,825 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 16:44:52,826 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 16:44:52,835 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 16:44:52,838 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 16:44:52,841 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 16:44:52,844 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 16:44:52,847 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 16:44:52,848 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 16:44:52,850 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 16:44:52,850 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 16:44:52,853 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 16:44:52,855 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 16:44:52,857 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 16:44:52,859 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 16:44:52,860 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 16:44:52,861 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 16:44:52,870 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 16:44:52,872 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 16:44:52,873 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 16:44:52,874 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 16:44:52,875 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 16:44:52,892 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 16:44:52,893 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 16:44:52,893 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 16:44:52,897 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 16:44:52,898 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 16:44:52,899 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 16:44:52,899 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 16:44:52,900 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 16:44:52,901 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 16:44:52,901 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 16:44:52,905 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 16:44:52,905 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 16:44:52,906 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 16:44:52,906 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 16:44:52,907 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 16:44:52,908 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 16:44:52,909 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 16:44:52,910 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-24 16:44:52,953 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 16:44:52,953 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 16:44:52,956 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 16:44:52,957 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 16:44:52,957 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 16:44:52,957 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 16:44:52,958 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 16:44:52,958 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 16:44:52,958 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 16:44:52,958 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 16:44:52,959 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 16:44:52,960 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 16:44:52,960 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 16:44:52,960 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 16:44:52,961 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 16:44:52,961 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 16:44:52,961 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 16:44:52,961 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 16:44:52,961 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 16:44:52,962 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 16:44:52,962 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 16:44:52,962 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 16:44:52,962 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 16:44:52,962 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 16:44:52,962 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 16:44:52,963 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 16:44:52,963 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 16:44:52,963 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 16:44:52,963 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 16:44:52,963 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;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;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;log-additional-information=true;
[2020-09-24 16:44:53,407 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 16:44:53,434 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 16:44:53,439 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 16:44:53,441 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 16:44:53,441 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 16:44:53,443 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c
[2020-09-24 16:44:53,524 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aa019c0be/a22ab519bd6b4d929fc7350551cacacb/FLAG7e43df011
[2020-09-24 16:44:54,097 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 16:44:54,098 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c
[2020-09-24 16:44:54,121 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aa019c0be/a22ab519bd6b4d929fc7350551cacacb/FLAG7e43df011
[2020-09-24 16:44:54,394 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aa019c0be/a22ab519bd6b4d929fc7350551cacacb
[2020-09-24 16:44:54,409 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 16:44:54,414 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 16:44:54,417 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 16:44:54,417 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 16:44:54,422 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 16:44:54,423 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:44:54" (1/1) ...
[2020-09-24 16:44:54,429 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64fec7e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:54, skipping insertion in model container
[2020-09-24 16:44:54,429 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:44:54" (1/1) ...
[2020-09-24 16:44:54,439 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 16:44:54,518 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 16:44:55,055 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:44:55,076 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 16:44:55,156 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:44:55,204 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 16:44:55,206 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:55 WrapperNode
[2020-09-24 16:44:55,206 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 16:44:55,207 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 16:44:55,207 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 16:44:55,207 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 16:44:55,224 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:55" (1/1) ...
[2020-09-24 16:44:55,224 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:55" (1/1) ...
[2020-09-24 16:44:55,245 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:55" (1/1) ...
[2020-09-24 16:44:55,245 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:55" (1/1) ...
[2020-09-24 16:44:55,282 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:55" (1/1) ...
[2020-09-24 16:44:55,294 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:55" (1/1) ...
[2020-09-24 16:44:55,300 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:55" (1/1) ...
[2020-09-24 16:44:55,309 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 16:44:55,309 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 16:44:55,309 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 16:44:55,310 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 16:44:55,311 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:55" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 16:44:55,415 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 16:44:55,416 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 16:44:55,416 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:44:55,417 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 16:44:55,417 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 16:44:55,417 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 16:44:55,417 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 16:44:55,418 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 16:44:55,418 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 16:44:55,419 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-24 16:44:55,419 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-24 16:44:55,420 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor
[2020-09-24 16:44:55,420 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 16:44:55,420 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 16:44:55,420 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 16:44:55,421 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 16:44:55,421 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 16:44:55,422 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 16:44:55,422 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-09-24 16:44:55,422 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-24 16:44:55,422 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-24 16:44:55,422 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 16:44:55,423 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 16:44:55,423 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 16:44:55,423 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 16:44:55,424 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 16:44:55,424 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 16:44:55,424 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-09-24 16:44:55,425 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-24 16:44:55,425 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 16:44:55,425 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 16:44:55,425 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 16:44:55,425 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 16:44:55,425 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 16:44:55,425 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 16:44:55,426 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1
[2020-09-24 16:44:55,426 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 16:44:55,426 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 16:44:55,426 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:44:55,426 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 16:44:55,426 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 16:44:55,426 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 16:44:55,427 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 16:44:55,427 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 16:44:55,427 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 16:44:55,427 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 16:44:55,427 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 16:44:55,427 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 16:44:55,428 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 16:44:55,428 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 16:44:55,428 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 16:44:55,428 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-24 16:44:55,429 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 16:44:55,429 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 16:44:55,429 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 16:44:55,429 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 16:44:55,429 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 16:44:55,430 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 16:44:55,430 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-09-24 16:44:55,430 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-24 16:44:55,430 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 16:44:55,430 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 16:44:55,430 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 16:44:55,431 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 16:44:55,431 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1
[2020-09-24 16:44:55,431 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 16:44:55,431 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-24 16:44:55,431 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-09-24 16:44:55,431 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-24 16:44:55,432 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-24 16:44:55,432 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor
[2020-09-24 16:44:55,433 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 16:44:55,433 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 16:44:55,433 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 16:44:55,434 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 16:44:55,435 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 16:44:55,435 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 16:44:55,435 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 16:44:55,435 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 16:44:55,435 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 16:44:55,435 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 16:44:55,435 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 16:44:55,436 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 16:44:55,437 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 16:44:55,437 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 16:44:55,437 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 16:44:55,437 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 16:44:55,437 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 16:44:55,437 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 16:44:55,437 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:44:55,438 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:44:55,438 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 16:44:55,438 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 16:44:55,438 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 16:44:55,438 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 16:44:55,438 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 16:44:55,439 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 16:44:55,439 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 16:44:56,763 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 16:44:56,763 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 16:44:56,775 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:44:56 BoogieIcfgContainer
[2020-09-24 16:44:56,775 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 16:44:56,778 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 16:44:56,778 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 16:44:56,782 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 16:44:56,783 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:44:54" (1/3) ...
[2020-09-24 16:44:56,784 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32802f3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:44:56, skipping insertion in model container
[2020-09-24 16:44:56,784 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:55" (2/3) ...
[2020-09-24 16:44:56,785 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32802f3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:44:56, skipping insertion in model container
[2020-09-24 16:44:56,786 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:44:56" (3/3) ...
[2020-09-24 16:44:56,788 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec1_product55.cil.c
[2020-09-24 16:44:56,801 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 16:44:56,818 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 16:44:56,842 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 16:44:56,885 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 16:44:56,886 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 16:44:56,886 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 16:44:56,886 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 16:44:56,886 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 16:44:56,886 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 16:44:56,886 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 16:44:56,887 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 16:44:56,917 INFO  L276                IsEmpty]: Start isEmpty. Operand 338 states.
[2020-09-24 16:44:56,937 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 143
[2020-09-24 16:44:56,938 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:44:56,939 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 16:44:56,940 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:44:56,948 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:44:56,948 INFO  L82        PathProgramCache]: Analyzing trace with hash 2046718669, now seen corresponding path program 1 times
[2020-09-24 16:44:56,958 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:44:56,959 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1748003244]
[2020-09-24 16:44:56,959 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:44:57,284 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:44:57,495 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:57,673 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:58,997 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:59,964 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:01,728 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:12,535 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:12,536 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 173
[2020-09-24 16:45:12,536 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-24 16:45:12,536 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 15241
[2020-09-24 16:45:12,538 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:12,538 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-24 16:45:12,538 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 77
[2020-09-24 16:45:12,539 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 92
[2020-09-24 16:45:12,539 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-24 16:45:13,045 WARN  L193               SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 16:45:13,049 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:45:13,117 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:13,193 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:13,377 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:13,378 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 16:45:13,378 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:45:13,378 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 257
[2020-09-24 16:45:13,379 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:13,379 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:45:13,379 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:45:13,379 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 73
[2020-09-24 16:45:13,379 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:45:13,464 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 16:45:13,466 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:13,468 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:13,477 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:13,478 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:45:13,478 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:45:13,478 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-24 16:45:13,479 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:13,479 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:45:13,479 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:45:13,480 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:45:13,480 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:45:13,484 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 16:45:13,487 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:13,489 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:13,492 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:13,492 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:45:13,493 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:45:13,493 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:45:13,493 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:13,493 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:45:13,494 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:45:13,494 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:45:13,495 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:45:13,497 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 16:45:13,498 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:13,501 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:13,508 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:13,508 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:45:13,509 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:45:13,509 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-24 16:45:13,509 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:13,509 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:45:13,510 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:45:13,510 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:45:13,510 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:45:13,518 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 16:45:13,520 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:13,521 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:13,523 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:13,524 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:45:13,524 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:45:13,524 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:45:13,524 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:13,525 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:45:13,525 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:45:13,525 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:45:13,525 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:45:13,529 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120
[2020-09-24 16:45:13,530 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:13,531 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:13,534 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:13,534 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:45:13,535 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:45:13,535 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:45:13,535 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:13,535 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:45:13,535 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:45:13,536 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:45:13,536 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:45:13,538 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130
[2020-09-24 16:45:13,539 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:13,540 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:13,546 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:13,546 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:45:13,546 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:45:13,546 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 16:45:13,546 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:13,547 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 16:45:13,547 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:45:13,547 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:45:13,547 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:45:13,607 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 16:45:13,608 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1748003244]
[2020-09-24 16:45:13,610 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:45:13,610 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-24 16:45:13,611 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313846160]
[2020-09-24 16:45:13,619 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-24 16:45:13,620 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:45:13,638 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-24 16:45:13,639 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-24 16:45:13,642 INFO  L87              Difference]: Start difference. First operand 338 states. Second operand 8 states.
[2020-09-24 16:45:14,272 WARN  L193               SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:45:15,613 WARN  L193               SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:45:15,951 WARN  L193               SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:45:16,294 WARN  L193               SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:45:16,649 WARN  L193               SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:45:16,970 WARN  L193               SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:45:17,824 WARN  L193               SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:45:18,115 WARN  L193               SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:45:18,471 WARN  L193               SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 16:45:19,944 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:45:19,945 INFO  L93              Difference]: Finished difference Result 664 states and 833 transitions.
[2020-09-24 16:45:19,946 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2020-09-24 16:45:19,948 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 142
[2020-09-24 16:45:19,949 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:45:19,971 INFO  L225             Difference]: With dead ends: 664
[2020-09-24 16:45:19,972 INFO  L226             Difference]: Without dead ends: 437
[2020-09-24 16:45:19,979 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272
[2020-09-24 16:45:20,000 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 437 states.
[2020-09-24 16:45:20,114 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 393.
[2020-09-24 16:45:20,119 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 393 states.
[2020-09-24 16:45:20,122 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 454 transitions.
[2020-09-24 16:45:20,125 INFO  L78                 Accepts]: Start accepts. Automaton has 393 states and 454 transitions. Word has length 142
[2020-09-24 16:45:20,126 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:45:20,126 INFO  L479      AbstractCegarLoop]: Abstraction has 393 states and 454 transitions.
[2020-09-24 16:45:20,126 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-24 16:45:20,126 INFO  L276                IsEmpty]: Start isEmpty. Operand 393 states and 454 transitions.
[2020-09-24 16:45:20,132 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 196
[2020-09-24 16:45:20,132 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:45:20,133 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 16:45:20,133 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 16:45:20,133 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:45:20,134 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:45:20,134 INFO  L82        PathProgramCache]: Analyzing trace with hash 1051506646, now seen corresponding path program 1 times
[2020-09-24 16:45:20,134 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:45:20,134 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1466017557]
[2020-09-24 16:45:20,135 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:45:20,184 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:20,236 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:20,614 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:24,754 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:24,755 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 236
[2020-09-24 16:45:24,755 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 16:45:24,755 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4567
[2020-09-24 16:45:24,755 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:24,755 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 12
[2020-09-24 16:45:24,756 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 80
[2020-09-24 16:45:24,756 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 140
[2020-09-24 16:45:24,756 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:45:25,166 WARN  L193               SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 16:45:25,167 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:45:25,202 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:25,241 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:25,427 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:25,427 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 16:45:25,427 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:45:25,428 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 221
[2020-09-24 16:45:25,428 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:25,428 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:45:25,428 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:45:25,428 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 76
[2020-09-24 16:45:25,429 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:45:25,476 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 16:45:25,477 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:25,478 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:25,481 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:25,482 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:45:25,482 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:45:25,482 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:45:25,482 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:25,482 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:45:25,483 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:45:25,483 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:45:25,483 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:45:25,484 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 16:45:25,485 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:25,488 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:25,491 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:25,491 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:45:25,491 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:45:25,491 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 16:45:25,492 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:25,492 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:45:25,492 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:45:25,492 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:45:25,493 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:45:25,494 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 16:45:25,495 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:25,497 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:25,504 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:25,505 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:45:25,505 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:45:25,505 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 16:45:25,505 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:25,505 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:45:25,506 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:45:25,506 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:45:25,506 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:45:25,509 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 16:45:25,509 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:25,511 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:25,513 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:25,513 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:45:25,514 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:45:25,514 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:45:25,514 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:25,514 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:45:25,514 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:45:25,515 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:45:25,515 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:45:25,526 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127
[2020-09-24 16:45:25,531 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:25,540 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:25,549 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:25,680 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:25,680 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 58
[2020-09-24 16:45:25,680 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 16:45:25,681 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 147
[2020-09-24 16:45:25,681 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:25,681 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:45:25,682 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:45:25,682 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 54
[2020-09-24 16:45:25,682 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:45:25,688 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 16:45:25,695 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:25,698 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:25,705 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:25,782 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:25,783 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 51
[2020-09-24 16:45:25,783 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 16:45:25,784 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 86
[2020-09-24 16:45:25,784 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:25,784 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 16:45:25,785 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 21
[2020-09-24 16:45:25,785 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-24 16:45:25,785 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:45:25,791 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 16:45:25,794 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:25,800 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:25,849 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:25,849 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 44
[2020-09-24 16:45:25,850 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:45:25,850 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 54
[2020-09-24 16:45:25,850 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:25,851 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 16:45:25,856 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 16
[2020-09-24 16:45:25,857 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-24 16:45:25,857 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 6
[2020-09-24 16:45:25,862 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 16:45:25,864 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:25,868 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:25,910 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:25,911 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 27
[2020-09-24 16:45:25,911 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:45:25,911 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 44
[2020-09-24 16:45:25,912 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:25,912 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 16:45:25,912 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 11
[2020-09-24 16:45:25,916 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-24 16:45:25,916 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-24 16:45:25,945 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-24 16:45:25,946 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:25,948 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:25,952 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:25,953 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 16:45:25,953 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:45:25,953 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 16:45:25,953 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:25,954 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-24 16:45:25,954 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:45:25,954 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:45:25,954 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:45:25,983 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26
[2020-09-24 16:45:25,984 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:25,985 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:25,987 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:25,987 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-24 16:45:25,988 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:45:25,988 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:45:25,988 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:25,988 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:45:25,988 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 6
[2020-09-24 16:45:25,989 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:45:25,989 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:45:25,994 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173
[2020-09-24 16:45:25,995 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:25,998 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:26,013 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:26,014 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:45:26,014 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:45:26,014 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 17
[2020-09-24 16:45:26,014 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:26,014 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 16:45:26,014 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:45:26,015 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:45:26,015 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:45:26,091 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183
[2020-09-24 16:45:26,092 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:26,096 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:26,098 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:45:26,098 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:45:26,099 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:45:26,103 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 16:45:26,103 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:45:26,103 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:45:26,104 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:45:26,104 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:45:26,104 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:45:26,168 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 16:45:26,168 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1466017557]
[2020-09-24 16:45:26,168 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:45:26,169 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13
[2020-09-24 16:45:26,169 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673563407]
[2020-09-24 16:45:26,172 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 13 states
[2020-09-24 16:45:26,173 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:45:26,173 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2020-09-24 16:45:26,174 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156
[2020-09-24 16:45:26,175 INFO  L87              Difference]: Start difference. First operand 393 states and 454 transitions. Second operand 13 states.
[2020-09-24 16:45:26,746 WARN  L193               SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 16:45:28,206 WARN  L193               SmtUtils]: Spent 570.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 189
[2020-09-24 16:45:28,871 WARN  L193               SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 191
[2020-09-24 16:45:29,227 WARN  L193               SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-24 16:45:29,618 WARN  L193               SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-24 16:45:29,965 WARN  L193               SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-24 16:45:30,467 WARN  L193               SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:45:30,848 WARN  L193               SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 192
[2020-09-24 16:45:31,219 WARN  L193               SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-24 16:45:31,575 WARN  L193               SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:45:31,955 WARN  L193               SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 200
[2020-09-24 16:45:32,305 WARN  L193               SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 192
[2020-09-24 16:45:32,665 WARN  L193               SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:45:33,020 WARN  L193               SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 16:45:33,462 WARN  L193               SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 16:45:33,802 WARN  L193               SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-24 16:45:34,179 WARN  L193               SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 16:45:34,562 WARN  L193               SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-24 16:45:34,902 WARN  L193               SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 16:45:35,511 WARN  L193               SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 192
[2020-09-24 16:45:37,971 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:45:37,972 INFO  L93              Difference]: Finished difference Result 1101 states and 1471 transitions.
[2020-09-24 16:45:37,975 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. 
[2020-09-24 16:45:37,975 INFO  L78                 Accepts]: Start accepts. Automaton has 13 states. Word has length 195
[2020-09-24 16:45:37,976 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:45:37,986 INFO  L225             Difference]: With dead ends: 1101
[2020-09-24 16:45:37,986 INFO  L226             Difference]: Without dead ends: 772
[2020-09-24 16:45:37,993 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 30 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=198, Invalid=992, Unknown=0, NotChecked=0, Total=1190
[2020-09-24 16:45:37,995 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 772 states.
[2020-09-24 16:45:38,109 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 647.
[2020-09-24 16:45:38,109 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 647 states.
[2020-09-24 16:45:38,113 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 753 transitions.
[2020-09-24 16:45:38,114 INFO  L78                 Accepts]: Start accepts. Automaton has 647 states and 753 transitions. Word has length 195
[2020-09-24 16:45:38,115 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:45:38,115 INFO  L479      AbstractCegarLoop]: Abstraction has 647 states and 753 transitions.
[2020-09-24 16:45:38,115 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 13 states.
[2020-09-24 16:45:38,115 INFO  L276                IsEmpty]: Start isEmpty. Operand 647 states and 753 transitions.
[2020-09-24 16:45:38,120 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 226
[2020-09-24 16:45:38,120 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:45:38,121 INFO  L422         BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 16:45:38,121 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 16:45:38,121 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:45:38,122 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:45:38,122 INFO  L82        PathProgramCache]: Analyzing trace with hash -1436218862, now seen corresponding path program 1 times
[2020-09-24 16:45:38,122 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:45:38,122 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [603454200]
[2020-09-24 16:45:38,123 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:45:38,186 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:45:38,250 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:38,401 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:38,505 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:38,613 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:38,804 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:45:40,779 FATAL L256   erpolLogProxyWrapper]: Now shrinking...