/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_product35.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 16:57:52,928 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 16:57:52,931 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 16:57:52,956 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 16:57:52,957 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 16:57:52,958 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 16:57:52,960 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 16:57:52,962 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 16:57:52,964 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 16:57:52,965 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 16:57:52,966 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 16:57:52,967 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 16:57:52,967 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 16:57:52,969 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 16:57:52,970 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 16:57:52,971 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 16:57:52,972 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 16:57:52,973 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 16:57:52,975 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 16:57:52,977 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 16:57:52,978 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 16:57:52,979 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 16:57:52,981 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 16:57:52,982 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 16:57:52,984 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 16:57:52,985 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 16:57:52,985 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 16:57:52,986 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 16:57:52,987 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 16:57:52,988 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 16:57:52,988 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 16:57:52,989 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 16:57:52,990 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 16:57:52,991 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 16:57:52,993 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 16:57:52,993 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 16:57:52,994 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 16:57:52,994 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 16:57:52,994 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 16:57:52,995 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 16:57:52,996 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 16:57:52,997 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 16:57:53,024 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 16:57:53,024 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 16:57:53,026 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 16:57:53,026 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 16:57:53,026 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 16:57:53,026 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 16:57:53,027 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 16:57:53,027 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 16:57:53,027 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 16:57:53,027 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 16:57:53,027 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 16:57:53,028 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 16:57:53,028 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 16:57:53,028 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 16:57:53,028 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 16:57:53,029 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 16:57:53,029 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 16:57:53,029 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 16:57:53,029 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 16:57:53,029 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 16:57:53,030 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 16:57:53,030 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 16:57:53,030 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 16:57:53,030 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 16:57:53,031 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 16:57:53,031 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 16:57:53,031 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 16:57:53,031 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 16:57:53,031 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 16:57:53,032 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 16:57:53,486 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 16:57:53,503 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 16:57:53,507 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 16:57:53,509 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 16:57:53,509 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 16:57:53,511 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product35.cil.c
[2020-09-24 16:57:53,604 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7620a78f9/1e07f295393f4e1584f4fabb26c4a63e/FLAGe7dd7a28a
[2020-09-24 16:57:54,224 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 16:57:54,225 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product35.cil.c
[2020-09-24 16:57:54,244 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7620a78f9/1e07f295393f4e1584f4fabb26c4a63e/FLAGe7dd7a28a
[2020-09-24 16:57:54,489 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7620a78f9/1e07f295393f4e1584f4fabb26c4a63e
[2020-09-24 16:57:54,505 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 16:57:54,511 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 16:57:54,512 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 16:57:54,513 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 16:57:54,517 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 16:57:54,518 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:57:54" (1/1) ...
[2020-09-24 16:57:54,522 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27030054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:57:54, skipping insertion in model container
[2020-09-24 16:57:54,523 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:57:54" (1/1) ...
[2020-09-24 16:57:54,532 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 16:57:54,583 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 16:57:55,235 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:57:55,251 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 16:57:55,324 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:57:55,373 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 16:57:55,374 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:57:55 WrapperNode
[2020-09-24 16:57:55,374 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 16:57:55,375 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 16:57:55,375 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 16:57:55,375 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 16:57:55,389 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:57:55" (1/1) ...
[2020-09-24 16:57:55,389 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:57:55" (1/1) ...
[2020-09-24 16:57:55,410 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:57:55" (1/1) ...
[2020-09-24 16:57:55,410 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:57:55" (1/1) ...
[2020-09-24 16:57:55,463 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:57:55" (1/1) ...
[2020-09-24 16:57:55,482 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:57:55" (1/1) ...
[2020-09-24 16:57:55,489 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:57:55" (1/1) ...
[2020-09-24 16:57:55,496 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 16:57:55,497 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 16:57:55,497 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 16:57:55,497 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 16:57:55,499 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:57:55" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 16:57:55,577 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 16:57:55,578 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 16:57:55,579 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:57:55,579 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 16:57:55,579 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 16:57:55,579 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 16:57:55,580 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 16:57:55,580 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 16:57:55,580 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 16:57:55,581 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 16:57:55,582 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 16:57:55,582 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:57:55,582 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 16:57:55,582 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 16:57:55,582 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 16:57:55,583 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 16:57:55,583 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 16:57:55,584 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 16:57:55,584 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 16:57:55,584 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 16:57:55,585 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 16:57:55,585 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 16:57:55,585 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 16:57:55,585 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 16:57:55,587 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 16:57:55,588 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 16:57:55,588 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-09-24 16:57:55,588 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 16:57:55,588 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-24 16:57:55,589 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 16:57:55,589 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 16:57:55,589 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 16:57:55,589 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 16:57:55,589 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 16:57:55,589 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 16:57:55,590 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-09-24 16:57:55,590 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-24 16:57:55,590 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1
[2020-09-24 16:57:55,590 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2
[2020-09-24 16:57:55,590 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3
[2020-09-24 16:57:55,590 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 16:57:55,590 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 16:57:55,591 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 16:57:55,591 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 16:57:55,591 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 16:57:55,591 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 16:57:55,591 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 16:57:55,591 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 16:57:55,592 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 16:57:55,592 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 16:57:55,592 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 16:57:55,592 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1
[2020-09-24 16:57:55,592 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 16:57:55,593 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 16:57:55,593 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 16:57:55,593 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 16:57:55,594 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 16:57:55,594 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 16:57:55,594 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 16:57:55,594 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 16:57:55,594 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 16:57:55,594 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 16:57:55,594 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 16:57:55,595 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 16:57:55,595 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 16:57:55,595 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 16:57:55,596 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 16:57:55,596 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 16:57:55,596 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:57:55,596 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:57:55,596 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 16:57:55,597 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 16:57:55,598 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 16:57:55,598 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 16:57:55,599 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 16:57:55,599 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 16:57:55,599 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-24 16:57:55,599 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 16:57:55,600 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 16:57:55,600 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 16:57:55,600 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 16:57:55,600 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-09-24 16:57:55,600 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 16:57:55,600 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 16:57:55,600 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 16:57:55,601 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2
[2020-09-24 16:57:55,601 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3
[2020-09-24 16:57:55,602 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 16:57:55,602 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-24 16:57:55,602 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-09-24 16:57:55,602 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 16:57:55,602 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 16:57:55,603 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 16:57:55,603 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 16:57:56,773 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 16:57:56,774 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 16:57:56,783 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:57:56 BoogieIcfgContainer
[2020-09-24 16:57:56,784 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 16:57:56,785 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 16:57:56,785 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 16:57:56,789 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 16:57:56,789 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:57:54" (1/3) ...
[2020-09-24 16:57:56,790 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b0184c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:57:56, skipping insertion in model container
[2020-09-24 16:57:56,790 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:57:55" (2/3) ...
[2020-09-24 16:57:56,791 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b0184c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:57:56, skipping insertion in model container
[2020-09-24 16:57:56,791 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:57:56" (3/3) ...
[2020-09-24 16:57:56,794 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec5_product35.cil.c
[2020-09-24 16:57:56,805 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 16:57:56,817 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 16:57:56,842 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 16:57:56,877 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 16:57:56,877 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 16:57:56,877 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 16:57:56,878 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 16:57:56,878 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 16:57:56,878 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 16:57:56,878 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 16:57:56,878 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 16:57:56,909 INFO  L276                IsEmpty]: Start isEmpty. Operand 300 states.
[2020-09-24 16:57:56,927 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 161
[2020-09-24 16:57:56,927 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:57:56,929 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 16:57:56,929 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:57:56,937 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:57:56,938 INFO  L82        PathProgramCache]: Analyzing trace with hash -956249494, now seen corresponding path program 1 times
[2020-09-24 16:57:56,949 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:57:56,949 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1726393996]
[2020-09-24 16:57:56,950 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:57:57,345 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:57:57,561 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:57:57,755 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:57:59,308 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:57:59,521 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:02,520 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:12,144 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:12,145 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 197
[2020-09-24 16:58:12,147 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-24 16:58:12,147 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 14779
[2020-09-24 16:58:12,149 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:12,150 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-24 16:58:12,151 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 161
[2020-09-24 16:58:12,151 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 31
[2020-09-24 16:58:12,152 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-24 16:58:12,778 WARN  L193               SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 16:58:12,783 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:58:12,809 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:12,822 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:12,924 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:12,925 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-24 16:58:12,925 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:12,925 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 113
[2020-09-24 16:58:12,925 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:12,926 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:58:12,926 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:12,926 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:58:12,926 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:13,005 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-24 16:58:13,008 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:13,009 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:13,011 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:13,011 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:58:13,011 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:13,011 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:58:13,012 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:13,012 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:58:13,013 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:13,013 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:58:13,013 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:58:13,015 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-24 16:58:13,016 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:13,017 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:13,024 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:13,024 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:58:13,024 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:13,025 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 16:58:13,025 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:13,025 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:58:13,025 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:13,026 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:58:13,026 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:13,028 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-24 16:58:13,029 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:13,031 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:13,040 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:13,040 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:58:13,041 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:13,041 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-24 16:58:13,041 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:13,041 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:58:13,042 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:13,042 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:58:13,042 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:13,044 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-24 16:58:13,044 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:13,046 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:13,048 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:13,048 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:58:13,048 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:13,049 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:58:13,049 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:13,049 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:58:13,049 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:13,050 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:58:13,050 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:13,066 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-24 16:58:13,068 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:13,070 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:13,072 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:13,072 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-24 16:58:13,073 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:13,073 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:58:13,073 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:13,073 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:58:13,074 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:13,074 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:58:13,074 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:13,078 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120
[2020-09-24 16:58:13,083 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:13,084 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:13,087 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:13,087 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 19
[2020-09-24 16:58:13,087 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:13,088 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:58:13,088 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:13,089 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:58:13,089 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:13,089 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:58:13,090 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:58:13,094 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:58:13,095 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:13,096 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:13,099 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:13,099 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:58:13,099 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:13,100 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:58:13,100 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:13,100 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:58:13,100 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:13,101 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:58:13,101 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:13,104 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137
[2020-09-24 16:58:13,107 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:13,109 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:13,111 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:13,111 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:58:13,112 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:13,112 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:58:13,112 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:13,112 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:58:13,113 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:13,113 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:58:13,113 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:13,116 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147
[2020-09-24 16:58:13,117 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:13,119 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:13,127 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:13,127 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:58:13,128 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:13,133 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-24 16:58:13,133 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:13,133 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 16:58:13,133 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:13,134 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:58:13,134 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:13,215 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 16:58:13,216 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1726393996]
[2020-09-24 16:58:13,218 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:58:13,218 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2020-09-24 16:58:13,219 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114428668]
[2020-09-24 16:58:13,229 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-24 16:58:13,230 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:58:13,257 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-24 16:58:13,259 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2020-09-24 16:58:13,262 INFO  L87              Difference]: Start difference. First operand 300 states. Second operand 9 states.
[2020-09-24 16:58:14,015 WARN  L193               SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-24 16:58:14,839 WARN  L193               SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 192
[2020-09-24 16:58:15,213 WARN  L193               SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 195
[2020-09-24 16:58:16,654 WARN  L193               SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:58:16,985 WARN  L193               SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-24 16:58:17,367 WARN  L193               SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:58:18,004 WARN  L193               SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-24 16:58:18,339 WARN  L193               SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-24 16:58:18,639 WARN  L193               SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-24 16:58:19,019 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:58:19,020 INFO  L93              Difference]: Finished difference Result 561 states and 684 transitions.
[2020-09-24 16:58:19,027 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2020-09-24 16:58:19,028 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 160
[2020-09-24 16:58:19,029 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:58:19,050 INFO  L225             Difference]: With dead ends: 561
[2020-09-24 16:58:19,050 INFO  L226             Difference]: Without dead ends: 385
[2020-09-24 16:58:19,057 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342
[2020-09-24 16:58:19,079 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 385 states.
[2020-09-24 16:58:19,174 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 336.
[2020-09-24 16:58:19,176 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 336 states.
[2020-09-24 16:58:19,181 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 377 transitions.
[2020-09-24 16:58:19,184 INFO  L78                 Accepts]: Start accepts. Automaton has 336 states and 377 transitions. Word has length 160
[2020-09-24 16:58:19,185 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:58:19,186 INFO  L479      AbstractCegarLoop]: Abstraction has 336 states and 377 transitions.
[2020-09-24 16:58:19,186 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-09-24 16:58:19,186 INFO  L276                IsEmpty]: Start isEmpty. Operand 336 states and 377 transitions.
[2020-09-24 16:58:19,192 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 195
[2020-09-24 16:58:19,192 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:58:19,193 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]
[2020-09-24 16:58:19,193 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 16:58:19,193 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:58:19,194 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:58:19,194 INFO  L82        PathProgramCache]: Analyzing trace with hash 640183005, now seen corresponding path program 1 times
[2020-09-24 16:58:19,194 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:58:19,195 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [619629512]
[2020-09-24 16:58:19,195 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:58:19,254 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:19,313 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:19,410 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:21,228 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:21,228 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 239
[2020-09-24 16:58:21,228 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 16:58:21,229 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1970
[2020-09-24 16:58:21,229 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:21,229 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-24 16:58:21,229 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 188
[2020-09-24 16:58:21,229 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-24 16:58:21,230 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:21,590 WARN  L193               SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 16:58:21,592 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:58:21,605 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:21,615 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:21,703 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:21,703 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-24 16:58:21,704 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:21,704 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 97
[2020-09-24 16:58:21,704 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:21,704 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:58:21,704 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:21,705 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:58:21,705 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:21,740 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-24 16:58:21,741 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:21,742 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:21,744 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:21,744 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:58:21,744 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:21,744 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:58:21,744 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:21,745 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:58:21,745 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:21,745 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:58:21,745 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:21,747 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-24 16:58:21,747 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:21,748 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:21,750 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:21,750 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:58:21,750 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:21,751 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:58:21,751 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:21,751 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:58:21,751 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:21,751 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:58:21,751 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:21,753 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-24 16:58:21,753 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:21,755 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:21,758 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:21,758 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:58:21,759 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:21,759 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:58:21,759 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:21,759 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:58:21,759 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:21,760 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:58:21,760 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:21,761 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-24 16:58:21,762 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:21,763 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:21,764 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:21,765 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:58:21,765 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:21,765 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:58:21,765 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:21,765 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:58:21,766 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:21,766 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:58:21,766 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:21,774 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-24 16:58:21,775 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:21,777 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:21,781 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:21,781 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-24 16:58:21,781 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:21,782 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 16:58:21,782 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:21,782 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:58:21,782 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:21,782 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:58:21,783 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:21,784 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-24 16:58:21,785 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:21,786 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:21,788 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:21,788 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 19
[2020-09-24 16:58:21,789 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:21,789 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:58:21,789 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:21,789 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:58:21,789 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:21,790 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:58:21,790 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:21,792 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:58:21,792 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:21,794 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:21,795 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:21,796 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:58:21,796 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:21,796 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:58:21,796 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:21,797 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:58:21,797 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:21,797 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:58:21,797 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:21,811 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135
[2020-09-24 16:58:21,814 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:21,819 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:21,875 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:21,875 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 44
[2020-09-24 16:58:21,876 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:21,876 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 60
[2020-09-24 16:58:21,876 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:21,876 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-24 16:58:21,876 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 24
[2020-09-24 16:58:21,877 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-24 16:58:21,877 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:21,938 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 16:58:21,941 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:21,946 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:21,988 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:21,989 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 27
[2020-09-24 16:58:21,989 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:21,989 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 45
[2020-09-24 16:58:21,989 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:21,990 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 16:58:21,990 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:21,990 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 22
[2020-09-24 16:58:21,990 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:22,039 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-24 16:58:22,040 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:22,041 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:22,044 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:22,045 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 16:58:22,045 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:22,045 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:58:22,046 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:22,046 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:58:22,046 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:22,046 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:58:22,047 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:22,049 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26
[2020-09-24 16:58:22,049 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:22,051 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:22,053 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:22,054 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-24 16:58:22,054 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:22,054 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:58:22,055 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:22,055 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:58:22,055 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 6
[2020-09-24 16:58:22,055 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:58:22,056 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:58:22,059 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171
[2020-09-24 16:58:22,060 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:22,062 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:22,063 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:22,064 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:58:22,064 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:22,064 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:58:22,064 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:22,065 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:58:22,065 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:58:22,065 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:58:22,065 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:22,067 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181
[2020-09-24 16:58:22,068 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:22,070 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:22,072 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:22,072 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:58:22,072 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:22,073 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:58:22,073 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:22,073 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:58:22,073 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:58:22,073 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:58:22,074 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:22,121 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 16:58:22,121 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [619629512]
[2020-09-24 16:58:22,121 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:58:22,122 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2020-09-24 16:58:22,122 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759101830]
[2020-09-24 16:58:22,126 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 10 states
[2020-09-24 16:58:22,127 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:58:22,128 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2020-09-24 16:58:22,128 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90
[2020-09-24 16:58:22,128 INFO  L87              Difference]: Start difference. First operand 336 states and 377 transitions. Second operand 10 states.
[2020-09-24 16:58:23,773 WARN  L193               SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:58:24,089 WARN  L193               SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 192
[2020-09-24 16:58:24,415 WARN  L193               SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 194
[2020-09-24 16:58:24,747 WARN  L193               SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-24 16:58:25,100 WARN  L193               SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 194
[2020-09-24 16:58:25,429 WARN  L193               SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-24 16:58:26,033 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:58:26,034 INFO  L93              Difference]: Finished difference Result 649 states and 782 transitions.
[2020-09-24 16:58:26,036 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-24 16:58:26,036 INFO  L78                 Accepts]: Start accepts. Automaton has 10 states. Word has length 194
[2020-09-24 16:58:26,037 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:58:26,043 INFO  L225             Difference]: With dead ends: 649
[2020-09-24 16:58:26,043 INFO  L226             Difference]: Without dead ends: 428
[2020-09-24 16:58:26,046 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272
[2020-09-24 16:58:26,047 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 428 states.
[2020-09-24 16:58:26,102 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 350.
[2020-09-24 16:58:26,102 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 350 states.
[2020-09-24 16:58:26,105 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 394 transitions.
[2020-09-24 16:58:26,106 INFO  L78                 Accepts]: Start accepts. Automaton has 350 states and 394 transitions. Word has length 194
[2020-09-24 16:58:26,106 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:58:26,107 INFO  L479      AbstractCegarLoop]: Abstraction has 350 states and 394 transitions.
[2020-09-24 16:58:26,107 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 10 states.
[2020-09-24 16:58:26,107 INFO  L276                IsEmpty]: Start isEmpty. Operand 350 states and 394 transitions.
[2020-09-24 16:58:26,111 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 231
[2020-09-24 16:58:26,111 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:58:26,112 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]
[2020-09-24 16:58:26,112 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 16:58:26,112 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:58:26,113 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:58:26,113 INFO  L82        PathProgramCache]: Analyzing trace with hash 132380341, now seen corresponding path program 1 times
[2020-09-24 16:58:26,113 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:58:26,113 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1287201367]
[2020-09-24 16:58:26,114 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:58:26,170 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:26,236 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:26,354 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:26,495 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:26,709 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:28,562 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:37,276 FATAL L256   erpolLogProxyWrapper]: Now shrinking...