/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_spec5_product39.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 16:58:06,235 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 16:58:06,239 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 16:58:06,265 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 16:58:06,265 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 16:58:06,266 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 16:58:06,268 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 16:58:06,270 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 16:58:06,271 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 16:58:06,272 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 16:58:06,274 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 16:58:06,275 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 16:58:06,275 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 16:58:06,276 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 16:58:06,277 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 16:58:06,279 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 16:58:06,280 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 16:58:06,281 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 16:58:06,283 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 16:58:06,285 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 16:58:06,286 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 16:58:06,287 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 16:58:06,289 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 16:58:06,290 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 16:58:06,292 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 16:58:06,292 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 16:58:06,293 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 16:58:06,294 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 16:58:06,294 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 16:58:06,295 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 16:58:06,295 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 16:58:06,296 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 16:58:06,297 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 16:58:06,298 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 16:58:06,299 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 16:58:06,300 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 16:58:06,303 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 16:58:06,303 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 16:58:06,304 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 16:58:06,305 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 16:58:06,306 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 16:58:06,306 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 16:58:06,333 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 16:58:06,333 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 16:58:06,335 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 16:58:06,335 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 16:58:06,335 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 16:58:06,335 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 16:58:06,335 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 16:58:06,336 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 16:58:06,336 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 16:58:06,336 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 16:58:06,336 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 16:58:06,336 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 16:58:06,337 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 16:58:06,337 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 16:58:06,337 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 16:58:06,337 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 16:58:06,338 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 16:58:06,338 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 16:58:06,338 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 16:58:06,338 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 16:58:06,338 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 16:58:06,339 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 16:58:06,339 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 16:58:06,339 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 16:58:06,339 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 16:58:06,340 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 16:58:06,340 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 16:58:06,340 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 16:58:06,340 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 16:58:06,340 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 16:58:06,812 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 16:58:06,827 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 16:58:06,832 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 16:58:06,836 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 16:58:06,837 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 16:58:06,839 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product39.cil.c
[2020-09-24 16:58:06,925 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/273cb6b52/fc79b0f70b60498fafb4e7c6ad7e4b2c/FLAGd3fb252ab
[2020-09-24 16:58:07,499 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 16:58:07,500 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product39.cil.c
[2020-09-24 16:58:07,517 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/273cb6b52/fc79b0f70b60498fafb4e7c6ad7e4b2c/FLAGd3fb252ab
[2020-09-24 16:58:07,792 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/273cb6b52/fc79b0f70b60498fafb4e7c6ad7e4b2c
[2020-09-24 16:58:07,808 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 16:58:07,815 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 16:58:07,818 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 16:58:07,818 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 16:58:07,822 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 16:58:07,823 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:58:07" (1/1) ...
[2020-09-24 16:58:07,828 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7845d484 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:07, skipping insertion in model container
[2020-09-24 16:58:07,829 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:58:07" (1/1) ...
[2020-09-24 16:58:07,839 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 16:58:07,912 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 16:58:08,313 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:58:08,417 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 16:58:08,548 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:58:08,592 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 16:58:08,592 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:08 WrapperNode
[2020-09-24 16:58:08,593 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 16:58:08,593 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 16:58:08,594 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 16:58:08,594 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 16:58:08,607 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:08" (1/1) ...
[2020-09-24 16:58:08,607 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:08" (1/1) ...
[2020-09-24 16:58:08,628 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:08" (1/1) ...
[2020-09-24 16:58:08,629 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:08" (1/1) ...
[2020-09-24 16:58:08,664 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:08" (1/1) ...
[2020-09-24 16:58:08,676 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:08" (1/1) ...
[2020-09-24 16:58:08,681 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:08" (1/1) ...
[2020-09-24 16:58:08,689 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 16:58:08,689 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 16:58:08,689 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 16:58:08,690 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 16:58:08,691 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:08" (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 16:58:08,763 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 16:58:08,764 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 16:58:08,764 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:58:08,764 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 16:58:08,764 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 16:58:08,764 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 16:58:08,765 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 16:58:08,765 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 16:58:08,765 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 16:58:08,765 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-24 16:58:08,765 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-24 16:58:08,766 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 16:58:08,766 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 16:58:08,766 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 16:58:08,766 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 16:58:08,766 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 16:58:08,767 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 16:58:08,767 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-09-24 16:58:08,767 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-24 16:58:08,767 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 16:58:08,767 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 16:58:08,767 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 16:58:08,768 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 16:58:08,768 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 16:58:08,768 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 16:58:08,768 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1
[2020-09-24 16:58:08,768 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2
[2020-09-24 16:58:08,769 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3
[2020-09-24 16:58:08,769 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 16:58:08,769 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 16:58:08,769 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:58:08,769 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 16:58:08,769 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 16:58:08,770 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 16:58:08,770 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 16:58:08,770 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 16:58:08,770 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 16:58:08,770 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 16:58:08,770 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 16:58:08,770 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 16:58:08,771 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-09-24 16:58:08,771 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 16:58:08,771 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 16:58:08,771 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 16:58:08,771 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 16:58:08,771 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 16:58:08,771 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 16:58:08,771 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 16:58:08,772 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 16:58:08,772 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 16:58:08,772 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 16:58:08,772 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 16:58:08,772 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-09-24 16:58:08,772 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 16:58:08,772 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 16:58:08,772 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 16:58:08,773 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 16:58:08,773 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 16:58:08,773 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-24 16:58:08,773 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2
[2020-09-24 16:58:08,773 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3
[2020-09-24 16:58:08,773 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 16:58:08,773 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-24 16:58:08,773 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-09-24 16:58:08,774 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-24 16:58:08,774 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 16:58:08,774 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 16:58:08,774 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 16:58:08,774 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 16:58:08,774 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 16:58:08,774 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 16:58:08,774 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 16:58:08,775 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1
[2020-09-24 16:58:08,775 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 16:58:08,775 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 16:58:08,775 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 16:58:08,775 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 16:58:08,775 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 16:58:08,776 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 16:58:08,776 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 16:58:08,776 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 16:58:08,776 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 16:58:08,776 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 16:58:08,776 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 16:58:08,776 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 16:58:08,777 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 16:58:08,777 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 16:58:08,777 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:58:08,777 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:58:08,777 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 16:58:08,777 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 16:58:08,778 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 16:58:08,778 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 16:58:08,778 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 16:58:08,778 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 16:58:08,778 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 16:58:09,874 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 16:58:09,874 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 16:58:09,882 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:58:09 BoogieIcfgContainer
[2020-09-24 16:58:09,882 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 16:58:09,883 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 16:58:09,883 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 16:58:09,887 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 16:58:09,887 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:58:07" (1/3) ...
[2020-09-24 16:58:09,888 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@292de125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:58:09, skipping insertion in model container
[2020-09-24 16:58:09,888 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:08" (2/3) ...
[2020-09-24 16:58:09,889 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@292de125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:58:09, skipping insertion in model container
[2020-09-24 16:58:09,889 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:58:09" (3/3) ...
[2020-09-24 16:58:09,891 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec5_product39.cil.c
[2020-09-24 16:58:09,902 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 16:58:09,913 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 16:58:09,932 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 16:58:09,962 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 16:58:09,962 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 16:58:09,963 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 16:58:09,963 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 16:58:09,963 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 16:58:09,963 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 16:58:09,963 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 16:58:09,963 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 16:58:09,992 INFO  L276                IsEmpty]: Start isEmpty. Operand 325 states.
[2020-09-24 16:58:10,011 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 161
[2020-09-24 16:58:10,011 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:58:10,012 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 16:58:10,013 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:58:10,020 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:58:10,021 INFO  L82        PathProgramCache]: Analyzing trace with hash 938593778, now seen corresponding path program 1 times
[2020-09-24 16:58:10,029 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:58:10,030 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2057937245]
[2020-09-24 16:58:10,030 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:58:10,367 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:10,507 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:10,689 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:12,043 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:12,229 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:14,995 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:22,579 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:22,580 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 197
[2020-09-24 16:58:22,581 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-24 16:58:22,582 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 12202
[2020-09-24 16:58:22,583 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:22,583 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-24 16:58:22,584 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 77
[2020-09-24 16:58:22,592 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 115
[2020-09-24 16:58:22,594 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 11
[2020-09-24 16:58:23,067 WARN  L193               SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 16:58:23,070 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:58:23,112 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:23,183 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:23,378 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:23,378 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-24 16:58:23,379 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:23,379 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 265
[2020-09-24 16:58:23,379 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:23,379 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:58:23,379 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:23,380 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 73
[2020-09-24 16:58:23,380 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:23,444 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-24 16:58:23,445 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:23,446 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:23,449 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:23,450 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:58:23,450 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:23,450 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:58:23,450 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:23,451 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:58:23,451 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:23,451 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:58:23,451 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:23,453 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-24 16:58:23,454 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:23,456 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:23,459 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:23,459 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:58:23,459 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:23,459 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:58:23,460 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:23,460 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:58:23,460 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:23,460 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:58:23,461 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:23,462 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-24 16:58:23,463 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:23,465 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:23,472 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:23,472 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:58:23,473 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:23,473 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 16:58:23,473 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:23,473 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:58:23,474 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:23,474 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:58:23,474 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:23,476 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-24 16:58:23,477 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:23,478 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:23,481 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:23,481 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:58:23,481 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:23,482 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:58:23,482 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:23,482 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:58:23,482 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:23,483 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:58:23,483 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:23,497 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-24 16:58:23,498 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:23,500 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:23,502 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:23,503 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-24 16:58:23,503 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:23,503 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:58:23,503 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:23,504 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:58:23,504 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:23,504 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-09-24 16:58:23,504 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:23,506 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120
[2020-09-24 16:58:23,508 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:23,511 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:23,518 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:23,518 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 19
[2020-09-24 16:58:23,519 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:23,519 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-24 16:58:23,519 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:23,519 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:58:23,520 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:23,520 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 15
[2020-09-24 16:58:23,520 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:23,522 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:58:23,523 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:23,524 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:23,526 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:23,526 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:58:23,526 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:23,527 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:58:23,527 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:23,527 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:58:23,527 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:23,527 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:58:23,528 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:23,530 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137
[2020-09-24 16:58:23,531 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:23,533 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:23,535 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:23,535 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:58:23,535 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:23,536 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:58:23,536 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:23,536 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:58:23,536 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:23,537 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:58:23,537 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:23,539 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147
[2020-09-24 16:58:23,540 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:23,541 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:23,548 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:23,548 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:58:23,548 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:23,549 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 16:58:23,549 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:23,549 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 16:58:23,549 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:23,550 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:58:23,550 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:23,609 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-09-24 16:58:23,610 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2057937245]
[2020-09-24 16:58:23,612 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:58:23,612 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2020-09-24 16:58:23,613 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002438399]
[2020-09-24 16:58:23,620 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-24 16:58:23,620 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:58:23,637 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-24 16:58:23,638 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2020-09-24 16:58:23,641 INFO  L87              Difference]: Start difference. First operand 325 states. Second operand 9 states.
[2020-09-24 16:58:24,194 WARN  L193               SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-24 16:58:24,933 WARN  L193               SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-24 16:58:25,220 WARN  L193               SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-24 16:58:26,635 WARN  L193               SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-24 16:58:26,933 WARN  L193               SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-24 16:58:27,275 WARN  L193               SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:58:27,829 WARN  L193               SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-24 16:58:28,132 WARN  L193               SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-24 16:58:28,445 WARN  L193               SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-24 16:58:29,028 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:58:29,028 INFO  L93              Difference]: Finished difference Result 619 states and 754 transitions.
[2020-09-24 16:58:29,029 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2020-09-24 16:58:29,031 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 160
[2020-09-24 16:58:29,032 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:58:29,054 INFO  L225             Difference]: With dead ends: 619
[2020-09-24 16:58:29,054 INFO  L226             Difference]: Without dead ends: 418
[2020-09-24 16:58:29,061 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342
[2020-09-24 16:58:29,083 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 418 states.
[2020-09-24 16:58:29,189 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 369.
[2020-09-24 16:58:29,191 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 369 states.
[2020-09-24 16:58:29,194 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 415 transitions.
[2020-09-24 16:58:29,197 INFO  L78                 Accepts]: Start accepts. Automaton has 369 states and 415 transitions. Word has length 160
[2020-09-24 16:58:29,200 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:58:29,201 INFO  L479      AbstractCegarLoop]: Abstraction has 369 states and 415 transitions.
[2020-09-24 16:58:29,201 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-09-24 16:58:29,201 INFO  L276                IsEmpty]: Start isEmpty. Operand 369 states and 415 transitions.
[2020-09-24 16:58:29,214 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 209
[2020-09-24 16:58:29,216 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:58:29,216 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 16:58:29,217 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 16:58:29,217 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:58:29,217 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:58:29,217 INFO  L82        PathProgramCache]: Analyzing trace with hash -1165066921, now seen corresponding path program 1 times
[2020-09-24 16:58:29,218 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:58:29,218 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [958377394]
[2020-09-24 16:58:29,218 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:58:29,285 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:29,351 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:30,122 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:30,123 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 253
[2020-09-24 16:58:30,123 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:30,123 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 832
[2020-09-24 16:58:30,124 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:30,124 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-24 16:58:30,124 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 200
[2020-09-24 16:58:30,125 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-24 16:58:30,125 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:58:30,408 WARN  L193               SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 16:58:30,409 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:58:30,417 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:30,428 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:30,521 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:30,522 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-24 16:58:30,522 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:30,522 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 101
[2020-09-24 16:58:30,522 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:30,523 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:58:30,523 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:30,523 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:58:30,523 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:30,607 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-24 16:58:30,607 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:30,608 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:30,609 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:30,610 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:58:30,610 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:30,610 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 16:58:30,611 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:30,611 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:58:30,611 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:30,612 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:58:30,612 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:58:30,613 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-24 16:58:30,614 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:30,615 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:30,616 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:30,617 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:58:30,617 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:30,617 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:58:30,617 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:30,618 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:58:30,618 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:30,618 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:58:30,619 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:58:30,620 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-24 16:58:30,620 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:30,622 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:30,626 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:30,626 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:58:30,626 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:30,626 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:58:30,627 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:30,627 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:58:30,627 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:30,627 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:58:30,627 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:30,629 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-24 16:58:30,630 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:30,631 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:30,633 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:30,633 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:58:30,634 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:30,634 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:58:30,634 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:30,635 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:58:30,635 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:30,635 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:58:30,635 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:58:30,644 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-24 16:58:30,645 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:30,649 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:30,650 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:30,650 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-24 16:58:30,650 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:30,651 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:58:30,651 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:30,651 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:58:30,651 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:30,652 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:58:30,652 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:30,655 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130
[2020-09-24 16:58:30,656 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:30,657 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:30,659 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:30,659 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 19
[2020-09-24 16:58:30,659 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:30,659 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:58:30,660 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:30,660 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:58:30,660 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:30,660 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:58:30,660 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:30,662 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:58:30,663 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:30,664 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:30,666 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:30,666 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:58:30,666 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:30,666 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:58:30,667 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:30,667 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:58:30,667 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:30,667 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:58:30,667 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:30,681 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144
[2020-09-24 16:58:30,685 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:30,691 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:30,758 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:30,758 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 51
[2020-09-24 16:58:30,758 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:30,759 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 71
[2020-09-24 16:58:30,759 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:30,759 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-24 16:58:30,760 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 29
[2020-09-24 16:58:30,760 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-24 16:58:30,760 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:58:30,770 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 16:58:30,773 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:30,781 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:30,835 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:30,835 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 44
[2020-09-24 16:58:30,835 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:30,836 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 60
[2020-09-24 16:58:30,836 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:30,836 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-24 16:58:30,836 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 24
[2020-09-24 16:58:30,837 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-24 16:58:30,837 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:58:30,860 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 16:58:30,863 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:30,867 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:30,900 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:30,900 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 27
[2020-09-24 16:58:30,901 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:30,901 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 36
[2020-09-24 16:58:30,901 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:30,901 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 16:58:30,902 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:30,902 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 22
[2020-09-24 16:58:30,902 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:30,949 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-24 16:58:30,950 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:30,952 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:30,956 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:30,956 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 16:58:30,956 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:30,956 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:58:30,957 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:30,957 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:58:30,957 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:30,957 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:58:30,958 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:58:30,960 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26
[2020-09-24 16:58:30,961 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:30,962 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:30,964 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:30,964 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-24 16:58:30,964 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:30,965 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:58:30,965 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:30,965 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:58:30,965 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 6
[2020-09-24 16:58:30,966 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:58:30,966 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:30,969 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185
[2020-09-24 16:58:30,970 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:30,971 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:30,972 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:30,973 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:58:30,973 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:30,973 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:58:30,973 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:30,973 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:58:30,974 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:58:30,974 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:58:30,974 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:30,976 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195
[2020-09-24 16:58:30,976 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:30,978 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:30,979 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:30,979 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:58:30,979 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:30,979 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:58:30,979 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:30,980 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:58:30,980 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:58:30,980 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:58:30,980 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:31,025 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2020-09-24 16:58:31,026 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [958377394]
[2020-09-24 16:58:31,026 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:58:31,026 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2020-09-24 16:58:31,026 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758433174]
[2020-09-24 16:58:31,029 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 10 states
[2020-09-24 16:58:31,029 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:58:31,029 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2020-09-24 16:58:31,029 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90
[2020-09-24 16:58:31,030 INFO  L87              Difference]: Start difference. First operand 369 states and 415 transitions. Second operand 10 states.
[2020-09-24 16:58:32,609 WARN  L193               SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-24 16:58:32,951 WARN  L193               SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 194
[2020-09-24 16:58:33,274 WARN  L193               SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 197
[2020-09-24 16:58:33,590 WARN  L193               SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:58:33,903 WARN  L193               SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 192
[2020-09-24 16:58:34,199 WARN  L193               SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:58:35,081 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:58:35,081 INFO  L93              Difference]: Finished difference Result 719 states and 868 transitions.
[2020-09-24 16:58:35,081 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-24 16:58:35,082 INFO  L78                 Accepts]: Start accepts. Automaton has 10 states. Word has length 208
[2020-09-24 16:58:35,083 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:58:35,088 INFO  L225             Difference]: With dead ends: 719
[2020-09-24 16:58:35,088 INFO  L226             Difference]: Without dead ends: 465
[2020-09-24 16:58:35,091 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272
[2020-09-24 16:58:35,093 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 465 states.
[2020-09-24 16:58:35,147 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 386.
[2020-09-24 16:58:35,147 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 386 states.
[2020-09-24 16:58:35,150 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 438 transitions.
[2020-09-24 16:58:35,151 INFO  L78                 Accepts]: Start accepts. Automaton has 386 states and 438 transitions. Word has length 208
[2020-09-24 16:58:35,152 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:58:35,152 INFO  L479      AbstractCegarLoop]: Abstraction has 386 states and 438 transitions.
[2020-09-24 16:58:35,152 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 10 states.
[2020-09-24 16:58:35,152 INFO  L276                IsEmpty]: Start isEmpty. Operand 386 states and 438 transitions.
[2020-09-24 16:58:35,155 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 236
[2020-09-24 16:58:35,155 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:58:35,156 INFO  L422         BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:35,156 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 16:58:35,156 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:58:35,156 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:58:35,157 INFO  L82        PathProgramCache]: Analyzing trace with hash 1193818671, now seen corresponding path program 1 times
[2020-09-24 16:58:35,157 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:58:35,157 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1417298823]
[2020-09-24 16:58:35,157 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:58:35,209 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:35,272 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:35,372 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:35,512 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:35,717 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:37,992 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:46,045 FATAL L256   erpolLogProxyWrapper]: Now shrinking...