/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product23.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 16:54:03,862 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 16:54:03,867 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 16:54:03,907 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 16:54:03,908 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 16:54:03,916 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 16:54:03,918 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 16:54:03,922 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 16:54:03,924 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 16:54:03,927 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 16:54:03,928 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 16:54:03,929 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 16:54:03,929 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 16:54:03,932 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 16:54:03,934 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 16:54:03,936 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 16:54:03,938 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 16:54:03,939 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 16:54:03,940 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 16:54:03,948 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 16:54:03,951 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 16:54:03,952 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 16:54:03,953 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 16:54:03,954 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 16:54:03,966 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 16:54:03,966 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 16:54:03,966 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 16:54:03,973 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 16:54:03,974 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 16:54:03,975 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 16:54:03,975 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 16:54:03,979 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 16:54:03,980 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 16:54:03,982 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 16:54:03,983 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 16:54:03,983 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 16:54:03,984 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 16:54:03,984 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 16:54:03,984 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 16:54:03,985 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 16:54:03,986 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 16:54:03,988 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-24 16:54:04,032 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 16:54:04,032 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 16:54:04,035 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 16:54:04,035 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 16:54:04,035 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 16:54:04,035 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 16:54:04,036 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 16:54:04,036 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 16:54:04,036 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 16:54:04,036 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 16:54:04,037 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 16:54:04,038 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 16:54:04,038 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 16:54:04,038 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 16:54:04,038 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 16:54:04,039 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 16:54:04,039 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 16:54:04,039 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 16:54:04,039 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 16:54:04,039 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 16:54:04,040 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 16:54:04,040 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 16:54:04,040 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 16:54:04,040 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 16:54:04,040 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 16:54:04,041 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 16:54:04,041 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 16:54:04,041 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 16:54:04,041 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 16:54:04,041 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true;
[2020-09-24 16:54:04,519 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 16:54:04,544 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 16:54:04,548 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 16:54:04,550 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 16:54:04,551 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 16:54:04,553 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product23.cil.c
[2020-09-24 16:54:04,647 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5073b2553/e97a2a4410a24097a17cd813aa5ceda2/FLAGb2bdaee32
[2020-09-24 16:54:05,290 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 16:54:05,291 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product23.cil.c
[2020-09-24 16:54:05,306 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5073b2553/e97a2a4410a24097a17cd813aa5ceda2/FLAGb2bdaee32
[2020-09-24 16:54:05,525 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5073b2553/e97a2a4410a24097a17cd813aa5ceda2
[2020-09-24 16:54:05,537 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 16:54:05,542 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 16:54:05,544 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 16:54:05,544 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 16:54:05,548 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 16:54:05,550 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:54:05" (1/1) ...
[2020-09-24 16:54:05,554 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@156a129e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:54:05, skipping insertion in model container
[2020-09-24 16:54:05,554 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:54:05" (1/1) ...
[2020-09-24 16:54:05,563 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 16:54:05,619 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 16:54:05,972 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:54:06,088 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 16:54:06,223 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:54:06,275 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 16:54:06,275 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:54:06 WrapperNode
[2020-09-24 16:54:06,276 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 16:54:06,276 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 16:54:06,277 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 16:54:06,277 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 16:54:06,290 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:54:06" (1/1) ...
[2020-09-24 16:54:06,291 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:54:06" (1/1) ...
[2020-09-24 16:54:06,311 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:54:06" (1/1) ...
[2020-09-24 16:54:06,312 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:54:06" (1/1) ...
[2020-09-24 16:54:06,342 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:54:06" (1/1) ...
[2020-09-24 16:54:06,352 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:54:06" (1/1) ...
[2020-09-24 16:54:06,357 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:54:06" (1/1) ...
[2020-09-24 16:54:06,365 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 16:54:06,366 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 16:54:06,366 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 16:54:06,366 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 16:54:06,368 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:54:06" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 16:54:06,440 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 16:54:06,441 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 16:54:06,441 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:54:06,441 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 16:54:06,441 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 16:54:06,442 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 16:54:06,442 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:54:06,442 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 16:54:06,442 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 16:54:06,442 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 16:54:06,443 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 16:54:06,443 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 16:54:06,443 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 16:54:06,443 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 16:54:06,443 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 16:54:06,444 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 16:54:06,444 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-24 16:54:06,444 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 16:54:06,444 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 16:54:06,445 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 16:54:06,445 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 16:54:06,445 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 16:54:06,445 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 16:54:06,445 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-24 16:54:06,445 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor
[2020-09-24 16:54:06,446 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 16:54:06,446 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 16:54:06,446 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 16:54:06,446 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 16:54:06,446 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 16:54:06,447 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 16:54:06,447 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-24 16:54:06,447 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-24 16:54:06,447 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1
[2020-09-24 16:54:06,447 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 16:54:06,447 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 16:54:06,448 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 16:54:06,448 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 16:54:06,448 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 16:54:06,448 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 16:54:06,448 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 16:54:06,449 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 16:54:06,449 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 16:54:06,449 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 16:54:06,449 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 16:54:06,449 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 16:54:06,449 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 16:54:06,449 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 16:54:06,450 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 16:54:06,450 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 16:54:06,450 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 16:54:06,450 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 16:54:06,450 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 16:54:06,450 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:54:06,451 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:54:06,451 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 16:54:06,451 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 16:54:06,451 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 16:54:06,451 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 16:54:06,452 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 16:54:06,452 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 16:54:06,452 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 16:54:06,452 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 16:54:06,452 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 16:54:06,452 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 16:54:06,453 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 16:54:06,453 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-24 16:54:06,453 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 16:54:06,453 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 16:54:06,453 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 16:54:06,453 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 16:54:06,453 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-24 16:54:06,454 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 16:54:06,454 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 16:54:06,454 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 16:54:06,454 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 16:54:06,454 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 16:54:06,455 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 16:54:06,455 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 16:54:06,455 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1
[2020-09-24 16:54:06,455 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 16:54:06,455 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-24 16:54:06,455 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-24 16:54:06,456 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor
[2020-09-24 16:54:06,456 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 16:54:06,456 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 16:54:06,456 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 16:54:06,456 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 16:54:06,456 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 16:54:06,457 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 16:54:06,457 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 16:54:06,457 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 16:54:07,730 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 16:54:07,730 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 16:54:07,741 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:54:07 BoogieIcfgContainer
[2020-09-24 16:54:07,742 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 16:54:07,743 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 16:54:07,744 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 16:54:07,747 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 16:54:07,748 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:54:05" (1/3) ...
[2020-09-24 16:54:07,748 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e7285b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:54:07, skipping insertion in model container
[2020-09-24 16:54:07,749 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:54:06" (2/3) ...
[2020-09-24 16:54:07,749 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e7285b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:54:07, skipping insertion in model container
[2020-09-24 16:54:07,750 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:54:07" (3/3) ...
[2020-09-24 16:54:07,753 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec4_product23.cil.c
[2020-09-24 16:54:07,764 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 16:54:07,777 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 16:54:07,799 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 16:54:07,826 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 16:54:07,826 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 16:54:07,826 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 16:54:07,826 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 16:54:07,826 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 16:54:07,826 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 16:54:07,826 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 16:54:07,826 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 16:54:07,855 INFO  L276                IsEmpty]: Start isEmpty. Operand 306 states.
[2020-09-24 16:54:07,873 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 143
[2020-09-24 16:54:07,873 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:54:07,875 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 16:54:07,875 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:54:07,882 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:54:07,883 INFO  L82        PathProgramCache]: Analyzing trace with hash 511028723, now seen corresponding path program 1 times
[2020-09-24 16:54:07,894 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:54:07,895 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [43252910]
[2020-09-24 16:54:07,895 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:54:08,206 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:54:08,419 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:08,615 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:09,863 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:10,849 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:20,267 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:22,256 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:54:22,257 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 173
[2020-09-24 16:54:22,257 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-24 16:54:22,258 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 14037
[2020-09-24 16:54:22,259 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:54:22,259 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-24 16:54:22,260 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 78
[2020-09-24 16:54:22,260 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 79
[2020-09-24 16:54:22,260 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-24 16:54:22,755 WARN  L193               SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 16:54:22,761 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:54:22,805 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:54:22,856 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:23,086 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:54:23,086 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 16:54:23,086 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:54:23,087 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 278
[2020-09-24 16:54:23,087 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:54:23,087 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:54:23,087 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:54:23,087 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 74
[2020-09-24 16:54:23,088 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:54:23,170 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 16:54:23,172 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:54:23,174 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:23,177 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:54:23,177 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:54:23,177 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:54:23,177 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:54:23,178 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:54:23,178 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:54:23,178 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:54:23,178 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:54:23,178 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:54:23,181 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 16:54:23,185 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:54:23,187 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:23,189 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:54:23,190 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:54:23,190 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:54:23,190 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:54:23,190 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:54:23,191 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:54:23,191 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:54:23,191 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:54:23,191 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:54:23,193 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 16:54:23,195 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:54:23,197 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:23,203 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:54:23,204 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:54:23,204 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:54:23,204 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 16:54:23,204 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:54:23,205 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:54:23,205 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:54:23,205 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:54:23,205 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:54:23,208 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 16:54:23,210 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:54:23,211 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:23,213 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:54:23,214 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:54:23,214 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:54:23,214 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:54:23,214 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:54:23,214 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:54:23,215 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:54:23,215 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:54:23,215 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:54:23,219 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120
[2020-09-24 16:54:23,221 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:54:23,222 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:23,229 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:54:23,230 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:54:23,230 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:54:23,230 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 16:54:23,231 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:54:23,232 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 16:54:23,232 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:54:23,233 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:54:23,233 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:54:23,261 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130
[2020-09-24 16:54:23,263 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:54:23,264 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:23,266 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:54:23,267 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:54:23,267 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:54:23,267 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:54:23,268 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:54:23,268 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:54:23,268 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:54:23,268 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:54:23,269 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:54:23,300 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 16:54:23,301 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [43252910]
[2020-09-24 16:54:23,303 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:54:23,304 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-24 16:54:23,305 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475413616]
[2020-09-24 16:54:23,313 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-24 16:54:23,314 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:54:23,331 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-24 16:54:23,333 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-24 16:54:23,335 INFO  L87              Difference]: Start difference. First operand 306 states. Second operand 8 states.
[2020-09-24 16:54:24,140 WARN  L193               SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:54:25,098 WARN  L193               SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:54:25,387 WARN  L193               SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:54:25,781 WARN  L193               SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:54:26,227 WARN  L193               SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:54:26,567 WARN  L193               SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:54:26,882 WARN  L193               SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:54:27,193 WARN  L193               SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:54:29,150 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:54:29,150 INFO  L93              Difference]: Finished difference Result 635 states and 783 transitions.
[2020-09-24 16:54:29,151 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-24 16:54:29,153 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 142
[2020-09-24 16:54:29,154 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:54:29,197 INFO  L225             Difference]: With dead ends: 635
[2020-09-24 16:54:29,197 INFO  L226             Difference]: Without dead ends: 440
[2020-09-24 16:54:29,211 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2020-09-24 16:54:29,235 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 440 states.
[2020-09-24 16:54:29,366 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 394.
[2020-09-24 16:54:29,368 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 394 states.
[2020-09-24 16:54:29,372 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 449 transitions.
[2020-09-24 16:54:29,374 INFO  L78                 Accepts]: Start accepts. Automaton has 394 states and 449 transitions. Word has length 142
[2020-09-24 16:54:29,375 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:54:29,375 INFO  L479      AbstractCegarLoop]: Abstraction has 394 states and 449 transitions.
[2020-09-24 16:54:29,375 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-24 16:54:29,375 INFO  L276                IsEmpty]: Start isEmpty. Operand 394 states and 449 transitions.
[2020-09-24 16:54:29,382 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 149
[2020-09-24 16:54:29,382 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:54:29,382 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 16:54:29,383 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 16:54:29,383 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:54:29,383 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:54:29,384 INFO  L82        PathProgramCache]: Analyzing trace with hash 1989410950, now seen corresponding path program 1 times
[2020-09-24 16:54:29,384 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:54:29,384 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [811160848]
[2020-09-24 16:54:29,384 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:54:29,434 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:54:29,482 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:29,565 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:30,488 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:34,829 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:37,911 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:54:37,911 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 181
[2020-09-24 16:54:37,911 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 4
[2020-09-24 16:54:37,911 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8474
[2020-09-24 16:54:37,911 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:54:37,912 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-24 16:54:37,912 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 81
[2020-09-24 16:54:37,912 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 67
[2020-09-24 16:54:37,912 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:54:38,206 WARN  L193               SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 16:54:38,207 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:54:38,238 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:54:38,269 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:38,431 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:54:38,432 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 16:54:38,432 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:54:38,432 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 192
[2020-09-24 16:54:38,432 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:54:38,433 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:54:38,433 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:54:38,433 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 77
[2020-09-24 16:54:38,433 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:54:38,471 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 16:54:38,472 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:54:38,473 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:38,475 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:54:38,475 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:54:38,476 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:54:38,476 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:54:38,476 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:54:38,476 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:54:38,476 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:54:38,477 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:54:38,477 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:54:38,478 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 16:54:38,479 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:54:38,480 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:38,482 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:54:38,482 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:54:38,482 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:54:38,482 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:54:38,482 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:54:38,483 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:54:38,483 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:54:38,483 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:54:38,483 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:54:38,484 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 16:54:38,485 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:54:38,487 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:38,492 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:54:38,493 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:54:38,493 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:54:38,493 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 16:54:38,493 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:54:38,493 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:54:38,494 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:54:38,494 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:54:38,494 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:54:38,495 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 16:54:38,496 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:54:38,497 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:38,499 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:54:38,499 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:54:38,500 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:54:38,500 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:54:38,500 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:54:38,500 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:54:38,500 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:54:38,501 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:54:38,501 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:54:38,507 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117
[2020-09-24 16:54:38,508 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:54:38,510 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:38,515 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:54:38,516 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 16:54:38,516 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:54:38,516 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 16:54:38,516 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:54:38,517 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:54:38,517 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:54:38,517 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-24 16:54:38,517 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:54:38,519 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126
[2020-09-24 16:54:38,519 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:54:38,521 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:38,522 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:54:38,522 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:54:38,522 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:54:38,523 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:54:38,523 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:54:38,523 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:54:38,523 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:54:38,524 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:54:38,524 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:54:38,525 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136
[2020-09-24 16:54:38,526 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:54:38,527 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:38,528 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:54:38,528 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:54:38,529 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:54:38,529 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:54:38,529 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:54:38,529 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:54:38,529 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:54:38,529 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:54:38,530 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:54:38,554 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 16:54:38,554 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [811160848]
[2020-09-24 16:54:38,555 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:54:38,555 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-24 16:54:38,559 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976284640]
[2020-09-24 16:54:38,562 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-24 16:54:38,563 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:54:38,563 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-24 16:54:38,563 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-24 16:54:38,564 INFO  L87              Difference]: Start difference. First operand 394 states and 449 transitions. Second operand 5 states.
[2020-09-24 16:54:39,054 WARN  L193               SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:54:41,522 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:54:41,522 INFO  L93              Difference]: Finished difference Result 1041 states and 1271 transitions.
[2020-09-24 16:54:41,525 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-09-24 16:54:41,526 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 148
[2020-09-24 16:54:41,527 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:54:41,533 INFO  L225             Difference]: With dead ends: 1041
[2020-09-24 16:54:41,533 INFO  L226             Difference]: Without dead ends: 757
[2020-09-24 16:54:41,536 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-09-24 16:54:41,537 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 757 states.
[2020-09-24 16:54:41,649 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 661.
[2020-09-24 16:54:41,650 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 661 states.
[2020-09-24 16:54:41,654 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 767 transitions.
[2020-09-24 16:54:41,655 INFO  L78                 Accepts]: Start accepts. Automaton has 661 states and 767 transitions. Word has length 148
[2020-09-24 16:54:41,656 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:54:41,656 INFO  L479      AbstractCegarLoop]: Abstraction has 661 states and 767 transitions.
[2020-09-24 16:54:41,656 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-24 16:54:41,656 INFO  L276                IsEmpty]: Start isEmpty. Operand 661 states and 767 transitions.
[2020-09-24 16:54:41,660 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 171
[2020-09-24 16:54:41,661 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:54:41,661 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 16:54:41,661 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 16:54:41,661 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:54:41,662 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:54:41,662 INFO  L82        PathProgramCache]: Analyzing trace with hash -319545397, now seen corresponding path program 1 times
[2020-09-24 16:54:41,662 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:54:41,662 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2075401208]
[2020-09-24 16:54:41,663 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:54:41,704 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:54:41,753 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:42,732 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:42,868 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:43,295 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:48,275 FATAL L256   erpolLogProxyWrapper]: Now shrinking...