/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_spec3_product55.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 16:52:13,476 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 16:52:13,480 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 16:52:13,506 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 16:52:13,506 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 16:52:13,507 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 16:52:13,509 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 16:52:13,510 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 16:52:13,512 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 16:52:13,513 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 16:52:13,514 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 16:52:13,517 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 16:52:13,517 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 16:52:13,519 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 16:52:13,520 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 16:52:13,521 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 16:52:13,522 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 16:52:13,523 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 16:52:13,525 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 16:52:13,527 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 16:52:13,528 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 16:52:13,529 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 16:52:13,530 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 16:52:13,531 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 16:52:13,534 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 16:52:13,534 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 16:52:13,534 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 16:52:13,535 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 16:52:13,536 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 16:52:13,537 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 16:52:13,537 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 16:52:13,538 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 16:52:13,539 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 16:52:13,540 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 16:52:13,541 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 16:52:13,541 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 16:52:13,542 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 16:52:13,542 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 16:52:13,542 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 16:52:13,543 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 16:52:13,544 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 16:52:13,545 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 16:52:13,571 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 16:52:13,571 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 16:52:13,573 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 16:52:13,573 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 16:52:13,573 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 16:52:13,573 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 16:52:13,574 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 16:52:13,574 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 16:52:13,574 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 16:52:13,574 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 16:52:13,574 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 16:52:13,575 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 16:52:13,575 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 16:52:13,575 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 16:52:13,575 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 16:52:13,575 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 16:52:13,576 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 16:52:13,576 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 16:52:13,576 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 16:52:13,576 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 16:52:13,576 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 16:52:13,577 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 16:52:13,577 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 16:52:13,577 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 16:52:13,577 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 16:52:13,577 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 16:52:13,578 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 16:52:13,578 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 16:52:13,578 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 16:52:13,578 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 16:52:14,073 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 16:52:14,091 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 16:52:14,097 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 16:52:14,100 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 16:52:14,101 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 16:52:14,103 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product55.cil.c
[2020-09-24 16:52:14,195 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/315e397d7/d5c7eab39dbb4ae189da2a50f3b63234/FLAGd0d984e38
[2020-09-24 16:52:14,905 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 16:52:14,906 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product55.cil.c
[2020-09-24 16:52:14,922 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/315e397d7/d5c7eab39dbb4ae189da2a50f3b63234/FLAGd0d984e38
[2020-09-24 16:52:15,094 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/315e397d7/d5c7eab39dbb4ae189da2a50f3b63234
[2020-09-24 16:52:15,108 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 16:52:15,114 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 16:52:15,115 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 16:52:15,115 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 16:52:15,119 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 16:52:15,121 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:52:15" (1/1) ...
[2020-09-24 16:52:15,125 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@361633d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:52:15, skipping insertion in model container
[2020-09-24 16:52:15,125 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:52:15" (1/1) ...
[2020-09-24 16:52:15,134 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 16:52:15,213 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 16:52:15,675 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:52:15,692 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 16:52:15,782 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:52:15,836 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 16:52:15,837 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:52:15 WrapperNode
[2020-09-24 16:52:15,838 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 16:52:15,839 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 16:52:15,839 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 16:52:15,839 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 16:52:15,854 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:52:15" (1/1) ...
[2020-09-24 16:52:15,854 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:52:15" (1/1) ...
[2020-09-24 16:52:15,874 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:52:15" (1/1) ...
[2020-09-24 16:52:15,875 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:52:15" (1/1) ...
[2020-09-24 16:52:15,908 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:52:15" (1/1) ...
[2020-09-24 16:52:15,919 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:52:15" (1/1) ...
[2020-09-24 16:52:15,925 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:52:15" (1/1) ...
[2020-09-24 16:52:15,934 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 16:52:15,934 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 16:52:15,935 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 16:52:15,935 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 16:52:15,936 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:52:15" (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 16:52:16,010 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 16:52:16,010 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 16:52:16,011 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:52:16,011 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 16:52:16,011 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 16:52:16,012 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 16:52:16,012 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 16:52:16,013 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 16:52:16,013 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 16:52:16,014 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 16:52:16,014 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 16:52:16,014 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 16:52:16,015 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 16:52:16,015 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-09-24 16:52:16,015 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-24 16:52:16,016 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 16:52:16,016 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 16:52:16,016 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 16:52:16,016 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:52:16,017 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 16:52:16,018 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 16:52:16,018 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 16:52:16,018 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 16:52:16,018 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 16:52:16,019 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 16:52:16,021 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 16:52:16,021 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 16:52:16,021 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 16:52:16,021 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-24 16:52:16,021 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-24 16:52:16,022 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor
[2020-09-24 16:52:16,022 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 16:52:16,022 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 16:52:16,022 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 16:52:16,022 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 16:52:16,023 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 16:52:16,023 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 16:52:16,023 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-09-24 16:52:16,023 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-24 16:52:16,023 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-24 16:52:16,023 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-24 16:52:16,024 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 16:52:16,024 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 16:52:16,024 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 16:52:16,024 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 16:52:16,024 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 16:52:16,024 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 16:52:16,025 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 16:52:16,025 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 16:52:16,025 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 16:52:16,025 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 16:52:16,025 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 16:52:16,026 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 16:52:16,026 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 16:52:16,026 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 16:52:16,027 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-09-24 16:52:16,027 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-24 16:52:16,027 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 16:52:16,027 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 16:52:16,027 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 16:52:16,027 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 16:52:16,028 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 16:52:16,028 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 16:52:16,028 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 16:52:16,028 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 16:52:16,028 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 16:52:16,028 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 16:52:16,029 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 16:52:16,029 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 16:52:16,029 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:52:16,029 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:52:16,030 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 16:52:16,031 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 16:52:16,031 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 16:52:16,032 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 16:52:16,032 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 16:52:16,032 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 16:52:16,032 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 16:52:16,033 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 16:52:16,033 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 16:52:16,033 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 16:52:16,033 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 16:52:16,034 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 16:52:16,034 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 16:52:16,034 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 16:52:16,035 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 16:52:16,035 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-24 16:52:16,035 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-24 16:52:16,035 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 16:52:16,035 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-24 16:52:16,035 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-09-24 16:52:16,035 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-24 16:52:16,036 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-24 16:52:16,036 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor
[2020-09-24 16:52:16,036 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 16:52:16,036 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 16:52:16,036 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 16:52:16,036 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 16:52:17,235 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 16:52:17,235 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 16:52:17,250 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:52:17 BoogieIcfgContainer
[2020-09-24 16:52:17,250 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 16:52:17,252 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 16:52:17,252 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 16:52:17,257 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 16:52:17,258 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:52:15" (1/3) ...
[2020-09-24 16:52:17,259 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@503daad3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:52:17, skipping insertion in model container
[2020-09-24 16:52:17,259 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:52:15" (2/3) ...
[2020-09-24 16:52:17,260 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@503daad3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:52:17, skipping insertion in model container
[2020-09-24 16:52:17,261 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:52:17" (3/3) ...
[2020-09-24 16:52:17,263 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product55.cil.c
[2020-09-24 16:52:17,276 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 16:52:17,292 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 16:52:17,318 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 16:52:17,359 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 16:52:17,359 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 16:52:17,359 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 16:52:17,359 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 16:52:17,360 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 16:52:17,361 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 16:52:17,361 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 16:52:17,361 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 16:52:17,401 INFO  L276                IsEmpty]: Start isEmpty. Operand 349 states.
[2020-09-24 16:52:17,427 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-24 16:52:17,427 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:52:17,429 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]
[2020-09-24 16:52:17,429 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:52:17,437 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:52:17,438 INFO  L82        PathProgramCache]: Analyzing trace with hash 1599034145, now seen corresponding path program 1 times
[2020-09-24 16:52:17,449 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:52:17,450 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [829428279]
[2020-09-24 16:52:17,450 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:52:17,821 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:52:17,946 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:18,160 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:19,540 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:23,696 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:52:23,697 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-24 16:52:23,697 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 16:52:23,698 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5866
[2020-09-24 16:52:23,699 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:52:23,699 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:52:23,699 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 129
[2020-09-24 16:52:23,700 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:52:23,700 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-24 16:52:24,065 WARN  L193               SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 16:52:24,067 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:52:24,078 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:52:24,087 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:24,198 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:52:24,198 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 16:52:24,199 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:52:24,199 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 119
[2020-09-24 16:52:24,199 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:52:24,199 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:52:24,200 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:52:24,200 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:52:24,200 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:52:24,260 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 16:52:24,261 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:52:24,262 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:24,264 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:52:24,264 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:52:24,265 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:52:24,265 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:52:24,265 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:52:24,265 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:52:24,266 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:52:24,266 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:52:24,266 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:52:24,268 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 16:52:24,268 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:52:24,270 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:24,272 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:52:24,272 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:52:24,272 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:52:24,272 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:52:24,272 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:52:24,273 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:52:24,273 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:52:24,273 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:52:24,273 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:52:24,275 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 16:52:24,276 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:52:24,277 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:24,281 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:52:24,282 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:52:24,282 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:52:24,282 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 16:52:24,282 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:52:24,283 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:52:24,283 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:52:24,283 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:52:24,283 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:52:24,285 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 16:52:24,286 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:52:24,287 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:24,290 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:52:24,290 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:52:24,290 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:52:24,290 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:52:24,291 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:52:24,291 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:52:24,291 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:52:24,291 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:52:24,292 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:52:24,293 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-24 16:52:24,294 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:52:24,296 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:24,298 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:52:24,299 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:52:24,299 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:52:24,299 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:52:24,299 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:52:24,300 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:52:24,300 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:52:24,300 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:52:24,300 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:52:24,302 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-24 16:52:24,303 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:52:24,305 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:24,307 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:52:24,308 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:52:24,308 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:52:24,308 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:52:24,308 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:52:24,309 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:52:24,309 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:52:24,309 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:52:24,309 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:52:24,311 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-24 16:52:24,312 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:52:24,314 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:24,316 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:52:24,316 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:52:24,317 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:52:24,317 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:52:24,317 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:52:24,317 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:52:24,318 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:52:24,318 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:52:24,318 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:52:24,347 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 16:52:24,348 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [829428279]
[2020-09-24 16:52:24,350 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:52:24,351 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-24 16:52:24,352 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280614173]
[2020-09-24 16:52:24,359 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-24 16:52:24,360 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:52:24,379 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-24 16:52:24,380 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 16:52:24,383 INFO  L87              Difference]: Start difference. First operand 349 states. Second operand 3 states.
[2020-09-24 16:52:25,997 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:52:25,998 INFO  L93              Difference]: Finished difference Result 567 states and 676 transitions.
[2020-09-24 16:52:26,005 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-09-24 16:52:26,006 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 153
[2020-09-24 16:52:26,008 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:52:26,028 INFO  L225             Difference]: With dead ends: 567
[2020-09-24 16:52:26,028 INFO  L226             Difference]: Without dead ends: 343
[2020-09-24 16:52:26,035 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 16:52:26,056 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 343 states.
[2020-09-24 16:52:26,152 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 298.
[2020-09-24 16:52:26,156 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 298 states.
[2020-09-24 16:52:26,158 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 328 transitions.
[2020-09-24 16:52:26,161 INFO  L78                 Accepts]: Start accepts. Automaton has 298 states and 328 transitions. Word has length 153
[2020-09-24 16:52:26,162 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:52:26,162 INFO  L479      AbstractCegarLoop]: Abstraction has 298 states and 328 transitions.
[2020-09-24 16:52:26,162 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-24 16:52:26,163 INFO  L276                IsEmpty]: Start isEmpty. Operand 298 states and 328 transitions.
[2020-09-24 16:52:26,168 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 155
[2020-09-24 16:52:26,168 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:52:26,168 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]
[2020-09-24 16:52:26,169 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 16:52:26,169 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:52:26,169 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:52:26,170 INFO  L82        PathProgramCache]: Analyzing trace with hash 1907459970, now seen corresponding path program 1 times
[2020-09-24 16:52:26,170 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:52:26,170 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1300273766]
[2020-09-24 16:52:26,170 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:52:26,223 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:52:26,278 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:26,421 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:28,385 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:34,405 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:52:34,405 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 187
[2020-09-24 16:52:34,406 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 16:52:34,406 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8179
[2020-09-24 16:52:34,406 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:52:34,406 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-24 16:52:34,407 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 77
[2020-09-24 16:52:34,407 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 94
[2020-09-24 16:52:34,407 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:52:34,839 WARN  L193               SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 16:52:34,842 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:52:34,892 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:52:34,930 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:35,183 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:52:35,183 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 16:52:35,184 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:52:35,184 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 288
[2020-09-24 16:52:35,184 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:52:35,184 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:52:35,184 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:52:35,185 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 73
[2020-09-24 16:52:35,185 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:52:35,231 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 16:52:35,232 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:52:35,234 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:35,237 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:52:35,237 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:52:35,237 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:52:35,238 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:52:35,238 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:52:35,238 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:52:35,239 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:52:35,239 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:52:35,239 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:52:35,241 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 16:52:35,241 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:52:35,243 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:35,245 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:52:35,246 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:52:35,246 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:52:35,246 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:52:35,246 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:52:35,247 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:52:35,247 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:52:35,247 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:52:35,247 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:52:35,249 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 16:52:35,250 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:52:35,252 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:35,259 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:52:35,260 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:52:35,260 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:52:35,260 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 16:52:35,261 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:52:35,261 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:52:35,261 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:52:35,262 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:52:35,262 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:52:35,264 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 16:52:35,265 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:52:35,266 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:35,269 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:52:35,269 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:52:35,270 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:52:35,270 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:52:35,270 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:52:35,270 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:52:35,270 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:52:35,271 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:52:35,271 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:52:35,273 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122
[2020-09-24 16:52:35,274 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:52:35,275 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:35,279 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:52:35,279 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:52:35,279 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:52:35,279 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:52:35,280 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:52:35,280 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:52:35,280 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:52:35,280 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:52:35,280 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:52:35,282 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132
[2020-09-24 16:52:35,284 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:52:35,285 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:35,293 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:52:35,294 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:52:35,294 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:52:35,295 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-24 16:52:35,295 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:52:35,295 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 16:52:35,296 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:52:35,296 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:52:35,296 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:52:35,346 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142
[2020-09-24 16:52:35,347 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:52:35,349 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:35,350 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:52:35,350 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:52:35,351 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:52:35,351 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:52:35,351 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:52:35,351 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:52:35,353 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:52:35,354 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:52:35,354 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-24 16:52:35,385 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 16:52:35,387 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1300273766]
[2020-09-24 16:52:35,387 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:52:35,387 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-24 16:52:35,388 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272685492]
[2020-09-24 16:52:35,390 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-24 16:52:35,391 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:52:35,391 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-24 16:52:35,391 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-24 16:52:35,391 INFO  L87              Difference]: Start difference. First operand 298 states and 328 transitions. Second operand 8 states.
[2020-09-24 16:52:35,939 WARN  L193               SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:52:37,894 WARN  L193               SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-24 16:52:38,314 WARN  L193               SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 192
[2020-09-24 16:52:38,781 WARN  L193               SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:52:39,230 WARN  L193               SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 16:52:39,557 WARN  L193               SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:52:39,942 WARN  L193               SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:52:40,255 WARN  L193               SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:52:41,709 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:52:41,709 INFO  L93              Difference]: Finished difference Result 718 states and 860 transitions.
[2020-09-24 16:52:41,710 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-24 16:52:41,710 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 154
[2020-09-24 16:52:41,711 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:52:41,717 INFO  L225             Difference]: With dead ends: 718
[2020-09-24 16:52:41,717 INFO  L226             Difference]: Without dead ends: 530
[2020-09-24 16:52:41,721 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 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 16:52:41,722 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 530 states.
[2020-09-24 16:52:41,809 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 480.
[2020-09-24 16:52:41,809 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 480 states.
[2020-09-24 16:52:41,813 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 549 transitions.
[2020-09-24 16:52:41,813 INFO  L78                 Accepts]: Start accepts. Automaton has 480 states and 549 transitions. Word has length 154
[2020-09-24 16:52:41,814 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:52:41,814 INFO  L479      AbstractCegarLoop]: Abstraction has 480 states and 549 transitions.
[2020-09-24 16:52:41,814 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-24 16:52:41,814 INFO  L276                IsEmpty]: Start isEmpty. Operand 480 states and 549 transitions.
[2020-09-24 16:52:41,818 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 160
[2020-09-24 16:52:41,818 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:52:41,818 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]
[2020-09-24 16:52:41,819 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 16:52:41,819 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:52:41,819 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:52:41,819 INFO  L82        PathProgramCache]: Analyzing trace with hash -1604298218, now seen corresponding path program 1 times
[2020-09-24 16:52:41,820 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:52:41,820 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [682779418]
[2020-09-24 16:52:41,820 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:52:41,874 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:52:41,933 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:42,031 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:42,213 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:47,030 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:47,755 FATAL L256   erpolLogProxyWrapper]: Now shrinking...