/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_spec4_product27.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 16:54:07,940 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 16:54:07,945 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 16:54:07,988 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 16:54:07,990 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 16:54:08,000 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 16:54:08,003 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 16:54:08,006 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 16:54:08,007 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 16:54:08,009 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 16:54:08,009 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 16:54:08,012 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 16:54:08,012 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 16:54:08,016 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 16:54:08,019 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 16:54:08,021 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 16:54:08,023 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 16:54:08,025 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 16:54:08,027 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 16:54:08,033 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 16:54:08,036 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 16:54:08,037 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 16:54:08,038 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 16:54:08,039 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 16:54:08,044 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 16:54:08,044 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 16:54:08,044 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 16:54:08,048 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 16:54:08,048 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 16:54:08,050 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 16:54:08,050 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 16:54:08,051 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 16:54:08,052 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 16:54:08,054 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 16:54:08,055 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 16:54:08,056 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 16:54:08,056 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 16:54:08,056 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 16:54:08,057 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 16:54:08,057 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 16:54:08,059 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 16:54:08,060 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 16:54:08,109 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 16:54:08,109 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 16:54:08,111 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 16:54:08,112 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 16:54:08,112 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 16:54:08,112 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 16:54:08,112 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 16:54:08,113 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 16:54:08,113 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 16:54:08,113 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 16:54:08,114 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 16:54:08,114 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 16:54:08,115 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 16:54:08,115 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 16:54:08,115 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 16:54:08,115 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 16:54:08,116 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 16:54:08,116 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 16:54:08,116 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 16:54:08,116 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 16:54:08,117 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 16:54:08,117 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 16:54:08,117 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 16:54:08,117 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 16:54:08,117 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 16:54:08,118 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 16:54:08,118 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 16:54:08,118 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 16:54:08,118 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 16:54:08,118 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 16:54:08,566 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 16:54:08,586 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 16:54:08,590 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 16:54:08,592 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 16:54:08,593 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 16:54:08,595 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product27.cil.c
[2020-09-24 16:54:08,685 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/de6e5ce84/4b452275e53d4eb4930bf0f92688e0b3/FLAG3f00ea0f2
[2020-09-24 16:54:09,279 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 16:54:09,280 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product27.cil.c
[2020-09-24 16:54:09,295 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/de6e5ce84/4b452275e53d4eb4930bf0f92688e0b3/FLAG3f00ea0f2
[2020-09-24 16:54:09,576 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/de6e5ce84/4b452275e53d4eb4930bf0f92688e0b3
[2020-09-24 16:54:09,590 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 16:54:09,596 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 16:54:09,599 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 16:54:09,600 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 16:54:09,604 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 16:54:09,605 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:54:09" (1/1) ...
[2020-09-24 16:54:09,610 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b54cc27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:54:09, skipping insertion in model container
[2020-09-24 16:54:09,610 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:54:09" (1/1) ...
[2020-09-24 16:54:09,620 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 16:54:09,671 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 16:54:10,032 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:54:10,047 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 16:54:10,255 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:54:10,290 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 16:54:10,291 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:54:10 WrapperNode
[2020-09-24 16:54:10,291 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 16:54:10,292 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 16:54:10,292 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 16:54:10,292 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 16:54:10,308 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:54:10" (1/1) ...
[2020-09-24 16:54:10,308 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:54:10" (1/1) ...
[2020-09-24 16:54:10,329 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:54:10" (1/1) ...
[2020-09-24 16:54:10,330 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:54:10" (1/1) ...
[2020-09-24 16:54:10,363 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:54:10" (1/1) ...
[2020-09-24 16:54:10,375 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:54:10" (1/1) ...
[2020-09-24 16:54:10,380 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:54:10" (1/1) ...
[2020-09-24 16:54:10,388 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 16:54:10,388 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 16:54:10,389 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 16:54:10,389 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 16:54:10,390 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:54:10" (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 16:54:10,485 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 16:54:10,486 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 16:54:10,486 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:54:10,486 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 16:54:10,486 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 16:54:10,487 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 16:54:10,487 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 16:54:10,487 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 16:54:10,487 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 16:54:10,487 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1
[2020-09-24 16:54:10,488 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 16:54:10,488 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 16:54:10,488 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 16:54:10,488 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 16:54:10,488 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 16:54:10,489 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 16:54:10,489 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-24 16:54:10,489 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 16:54:10,489 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 16:54:10,489 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-24 16:54:10,490 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 16:54:10,490 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor
[2020-09-24 16:54:10,490 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 16:54:10,490 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 16:54:10,490 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 16:54:10,490 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 16:54:10,491 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 16:54:10,491 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-24 16:54:10,491 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-24 16:54:10,491 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 16:54:10,491 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 16:54:10,491 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 16:54:10,492 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 16:54:10,492 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 16:54:10,492 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 16:54:10,492 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:54:10,492 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 16:54:10,492 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 16:54:10,493 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 16:54:10,493 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 16:54:10,493 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 16:54:10,493 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 16:54:10,493 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 16:54:10,493 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 16:54:10,494 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 16:54:10,494 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 16:54:10,494 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 16:54:10,494 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 16:54:10,494 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 16:54:10,494 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 16:54:10,494 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 16:54:10,495 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 16:54:10,495 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 16:54:10,495 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 16:54:10,495 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 16:54:10,495 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 16:54:10,496 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 16:54:10,496 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 16:54:10,496 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1
[2020-09-24 16:54:10,496 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 16:54:10,496 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 16:54:10,496 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 16:54:10,497 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-24 16:54:10,497 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 16:54:10,497 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-24 16:54:10,497 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 16:54:10,497 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 16:54:10,497 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 16:54:10,498 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-24 16:54:10,498 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-24 16:54:10,498 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor
[2020-09-24 16:54:10,498 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 16:54:10,498 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 16:54:10,498 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 16:54:10,498 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 16:54:10,499 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 16:54:10,499 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 16:54:10,499 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 16:54:10,499 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 16:54:10,499 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 16:54:10,500 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 16:54:10,500 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 16:54:10,500 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 16:54:10,500 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:54:10,500 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:54:10,500 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 16:54:10,501 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 16:54:10,501 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 16:54:10,501 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 16:54:10,501 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 16:54:10,501 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 16:54:10,501 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 16:54:11,650 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 16:54:11,650 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 16:54:11,657 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:54:11 BoogieIcfgContainer
[2020-09-24 16:54:11,658 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 16:54:11,659 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 16:54:11,659 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 16:54:11,663 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 16:54:11,663 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:54:09" (1/3) ...
[2020-09-24 16:54:11,664 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2245c33e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:54:11, skipping insertion in model container
[2020-09-24 16:54:11,664 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:54:10" (2/3) ...
[2020-09-24 16:54:11,664 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2245c33e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:54:11, skipping insertion in model container
[2020-09-24 16:54:11,665 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:54:11" (3/3) ...
[2020-09-24 16:54:11,667 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec4_product27.cil.c
[2020-09-24 16:54:11,678 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 16:54:11,690 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 16:54:11,712 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 16:54:11,742 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 16:54:11,742 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 16:54:11,742 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 16:54:11,742 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 16:54:11,742 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 16:54:11,742 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 16:54:11,742 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 16:54:11,743 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 16:54:11,767 INFO  L276                IsEmpty]: Start isEmpty. Operand 281 states.
[2020-09-24 16:54:11,784 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 143
[2020-09-24 16:54:11,784 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:54:11,786 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 16:54:11,786 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:54:11,792 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:54:11,793 INFO  L82        PathProgramCache]: Analyzing trace with hash 2005054536, now seen corresponding path program 1 times
[2020-09-24 16:54:11,804 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:54:11,805 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2039698924]
[2020-09-24 16:54:11,805 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:54:12,098 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:54:12,250 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:12,510 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:13,816 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:15,044 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:25,150 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:27,294 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:54:27,295 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 173
[2020-09-24 16:54:27,295 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-24 16:54:27,295 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 15186
[2020-09-24 16:54:27,297 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:54:27,297 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-24 16:54:27,299 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 78
[2020-09-24 16:54:27,299 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 79
[2020-09-24 16:54:27,299 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-24 16:54:27,802 WARN  L193               SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 16:54:27,805 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:54:27,857 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:54:27,921 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:28,136 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:54:28,136 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 16:54:28,136 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:54:28,137 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 277
[2020-09-24 16:54:28,137 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:54:28,137 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:54:28,137 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:54:28,138 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 74
[2020-09-24 16:54:28,138 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:54:28,231 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 16:54:28,233 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:54:28,234 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:28,237 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:54:28,237 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:54:28,237 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:54:28,238 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:54:28,238 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:54:28,238 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:54:28,238 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:54:28,238 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:54:28,239 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:54:28,241 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 16:54:28,245 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:54:28,247 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:28,250 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:54:28,250 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:54:28,250 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:54:28,250 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:54:28,251 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:54:28,251 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:54:28,251 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:54:28,251 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:54:28,251 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:54:28,254 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 16:54:28,255 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:54:28,258 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:28,265 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:54:28,266 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:54:28,266 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:54:28,266 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-24 16:54:28,267 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:54:28,267 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:54:28,267 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:54:28,267 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:54:28,267 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:54:28,270 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 16:54:28,272 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:54:28,274 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:28,277 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:54:28,277 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:54:28,278 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:54:28,278 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:54:28,278 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:54:28,278 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:54:28,278 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:54:28,279 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:54:28,279 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:54:28,283 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120
[2020-09-24 16:54:28,285 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:54:28,286 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:28,292 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:54:28,293 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:54:28,293 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:54:28,293 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 16:54:28,293 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:54:28,294 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 16:54:28,294 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:54:28,294 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:54:28,294 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:54:28,322 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130
[2020-09-24 16:54:28,324 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:54:28,326 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:28,327 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:54:28,329 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:54:28,329 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:54:28,330 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:54:28,330 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:54:28,330 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:54:28,330 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:54:28,331 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:54:28,331 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:54:28,366 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 16:54:28,368 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2039698924]
[2020-09-24 16:54:28,370 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:54:28,371 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-24 16:54:28,372 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802323097]
[2020-09-24 16:54:28,383 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-24 16:54:28,383 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:54:28,402 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-24 16:54:28,403 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-24 16:54:28,406 INFO  L87              Difference]: Start difference. First operand 281 states. Second operand 8 states.
[2020-09-24 16:54:29,108 WARN  L193               SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:54:30,172 WARN  L193               SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:54:30,540 WARN  L193               SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:54:30,998 WARN  L193               SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:54:31,365 WARN  L193               SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:54:31,700 WARN  L193               SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:54:32,032 WARN  L193               SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:54:32,348 WARN  L193               SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:54:34,096 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:54:34,097 INFO  L93              Difference]: Finished difference Result 556 states and 690 transitions.
[2020-09-24 16:54:34,098 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-24 16:54:34,100 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 142
[2020-09-24 16:54:34,101 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:54:34,122 INFO  L225             Difference]: With dead ends: 556
[2020-09-24 16:54:34,122 INFO  L226             Difference]: Without dead ends: 386
[2020-09-24 16:54:34,129 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2020-09-24 16:54:34,153 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 386 states.
[2020-09-24 16:54:34,257 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 342.
[2020-09-24 16:54:34,259 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 342 states.
[2020-09-24 16:54:34,263 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 388 transitions.
[2020-09-24 16:54:34,265 INFO  L78                 Accepts]: Start accepts. Automaton has 342 states and 388 transitions. Word has length 142
[2020-09-24 16:54:34,266 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:54:34,266 INFO  L479      AbstractCegarLoop]: Abstraction has 342 states and 388 transitions.
[2020-09-24 16:54:34,267 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-24 16:54:34,267 INFO  L276                IsEmpty]: Start isEmpty. Operand 342 states and 388 transitions.
[2020-09-24 16:54:34,273 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 149
[2020-09-24 16:54:34,273 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:54:34,273 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]
[2020-09-24 16:54:34,274 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 16:54:34,274 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:54:34,275 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:54:34,275 INFO  L82        PathProgramCache]: Analyzing trace with hash 297309340, now seen corresponding path program 1 times
[2020-09-24 16:54:34,275 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:54:34,276 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [590653638]
[2020-09-24 16:54:34,276 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:54:34,332 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:54:34,384 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:34,483 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:35,436 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:40,041 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:43,386 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:54:43,387 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 181
[2020-09-24 16:54:43,387 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 4
[2020-09-24 16:54:43,387 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9049
[2020-09-24 16:54:43,387 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:54:43,387 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-24 16:54:43,388 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 81
[2020-09-24 16:54:43,388 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 67
[2020-09-24 16:54:43,388 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:54:43,702 WARN  L193               SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 16:54:43,704 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:54:43,756 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:54:43,791 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:43,975 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:54:43,975 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 16:54:43,975 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:54:43,976 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 215
[2020-09-24 16:54:43,976 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:54:43,976 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:54:43,976 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:54:43,976 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 77
[2020-09-24 16:54:43,977 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:54:44,017 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 16:54:44,018 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:54:44,020 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:44,022 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:54:44,023 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:54:44,023 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:54:44,023 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:54:44,023 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:54:44,024 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:54:44,024 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:54:44,024 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:54:44,024 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:54:44,026 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 16:54:44,026 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:54:44,028 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:44,030 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:54:44,030 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:54:44,030 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:54:44,031 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:54:44,031 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:54:44,031 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:54:44,031 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:54:44,032 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:54:44,032 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:54:44,033 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 16:54:44,034 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:54:44,036 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:44,043 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:54:44,043 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:54:44,043 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:54:44,043 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 16:54:44,044 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:54:44,044 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:54:44,044 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:54:44,044 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:54:44,044 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:54:44,046 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 16:54:44,047 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:54:44,048 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:44,050 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:54:44,051 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:54:44,051 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:54:44,051 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:54:44,051 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:54:44,052 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:54:44,052 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:54:44,052 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:54:44,052 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:54:44,067 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117
[2020-09-24 16:54:44,068 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:54:44,070 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:44,075 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:54:44,076 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 16:54:44,076 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:54:44,076 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 16:54:44,076 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:54:44,077 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:54:44,077 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:54:44,077 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-24 16:54:44,077 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:54:44,079 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126
[2020-09-24 16:54:44,080 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:54:44,082 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:44,083 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:54:44,083 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:54:44,083 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:54:44,084 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:54:44,084 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:54:44,084 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:54:44,084 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:54:44,084 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:54:44,085 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:54:44,086 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136
[2020-09-24 16:54:44,087 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:54:44,088 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:44,090 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:54:44,090 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:54:44,090 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:54:44,090 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:54:44,091 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:54:44,091 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:54:44,091 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:54:44,091 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:54:44,091 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:54:44,120 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 16:54:44,121 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [590653638]
[2020-09-24 16:54:44,121 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:54:44,121 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-24 16:54:44,122 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98321207]
[2020-09-24 16:54:44,124 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-24 16:54:44,124 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:54:44,124 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-24 16:54:44,125 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-24 16:54:44,125 INFO  L87              Difference]: Start difference. First operand 342 states and 388 transitions. Second operand 5 states.
[2020-09-24 16:54:44,846 WARN  L193               SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:54:47,027 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:54:47,027 INFO  L93              Difference]: Finished difference Result 881 states and 1082 transitions.
[2020-09-24 16:54:47,028 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-09-24 16:54:47,028 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 148
[2020-09-24 16:54:47,029 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:54:47,047 INFO  L225             Difference]: With dead ends: 881
[2020-09-24 16:54:47,049 INFO  L226             Difference]: Without dead ends: 649
[2020-09-24 16:54:47,059 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-09-24 16:54:47,063 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 649 states.
[2020-09-24 16:54:47,226 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 561.
[2020-09-24 16:54:47,227 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 561 states.
[2020-09-24 16:54:47,231 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 651 transitions.
[2020-09-24 16:54:47,231 INFO  L78                 Accepts]: Start accepts. Automaton has 561 states and 651 transitions. Word has length 148
[2020-09-24 16:54:47,232 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:54:47,232 INFO  L479      AbstractCegarLoop]: Abstraction has 561 states and 651 transitions.
[2020-09-24 16:54:47,232 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-24 16:54:47,233 INFO  L276                IsEmpty]: Start isEmpty. Operand 561 states and 651 transitions.
[2020-09-24 16:54:47,237 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 157
[2020-09-24 16:54:47,237 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:54:47,237 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 16:54:47,237 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 16:54:47,238 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:54:47,238 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:54:47,238 INFO  L82        PathProgramCache]: Analyzing trace with hash -104151563, now seen corresponding path program 1 times
[2020-09-24 16:54:47,238 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:54:47,239 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2114155275]
[2020-09-24 16:54:47,239 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:54:47,280 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:54:47,322 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:47,403 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:47,522 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:52,410 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:52,541 FATAL L256   erpolLogProxyWrapper]: Now shrinking...