/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_spec1_product43.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 16:44:06,892 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 16:44:06,896 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 16:44:06,923 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 16:44:06,923 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 16:44:06,924 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 16:44:06,926 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 16:44:06,927 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 16:44:06,929 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 16:44:06,930 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 16:44:06,931 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 16:44:06,932 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 16:44:06,933 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 16:44:06,934 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 16:44:06,935 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 16:44:06,936 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 16:44:06,937 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 16:44:06,938 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 16:44:06,940 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 16:44:06,942 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 16:44:06,943 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 16:44:06,944 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 16:44:06,946 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 16:44:06,946 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 16:44:06,949 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 16:44:06,953 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 16:44:06,953 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 16:44:06,954 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 16:44:06,955 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 16:44:06,956 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 16:44:06,956 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 16:44:06,957 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 16:44:06,958 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 16:44:06,958 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 16:44:06,963 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 16:44:06,964 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 16:44:06,965 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 16:44:06,965 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 16:44:06,965 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 16:44:06,966 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 16:44:06,967 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 16:44:06,968 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 16:44:07,024 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 16:44:07,024 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 16:44:07,026 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 16:44:07,026 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 16:44:07,026 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 16:44:07,027 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 16:44:07,027 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 16:44:07,027 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 16:44:07,027 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 16:44:07,027 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 16:44:07,027 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 16:44:07,031 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 16:44:07,031 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 16:44:07,031 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 16:44:07,031 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 16:44:07,031 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 16:44:07,032 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 16:44:07,032 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 16:44:07,032 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 16:44:07,032 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 16:44:07,033 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 16:44:07,033 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 16:44:07,033 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 16:44:07,033 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 16:44:07,033 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 16:44:07,034 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 16:44:07,035 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 16:44:07,035 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 16:44:07,035 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 16:44:07,035 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 16:44:07,522 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 16:44:07,542 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 16:44:07,546 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 16:44:07,548 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 16:44:07,550 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 16:44:07,551 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product43.cil.c
[2020-09-24 16:44:07,634 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/056500aff/6b09b5ab535b44fba5c9c95a9dabbda6/FLAGc0f33af8a
[2020-09-24 16:44:08,262 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 16:44:08,266 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product43.cil.c
[2020-09-24 16:44:08,289 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/056500aff/6b09b5ab535b44fba5c9c95a9dabbda6/FLAGc0f33af8a
[2020-09-24 16:44:08,475 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/056500aff/6b09b5ab535b44fba5c9c95a9dabbda6
[2020-09-24 16:44:08,490 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 16:44:08,499 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 16:44:08,502 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 16:44:08,502 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 16:44:08,506 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 16:44:08,508 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:44:08" (1/1) ...
[2020-09-24 16:44:08,512 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@af20ea9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:08, skipping insertion in model container
[2020-09-24 16:44:08,512 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:44:08" (1/1) ...
[2020-09-24 16:44:08,523 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 16:44:08,594 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 16:44:09,036 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:44:09,155 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 16:44:09,264 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:44:09,303 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 16:44:09,304 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:09 WrapperNode
[2020-09-24 16:44:09,304 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 16:44:09,305 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 16:44:09,305 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 16:44:09,305 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 16:44:09,322 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:09" (1/1) ...
[2020-09-24 16:44:09,323 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:09" (1/1) ...
[2020-09-24 16:44:09,345 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:09" (1/1) ...
[2020-09-24 16:44:09,346 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:09" (1/1) ...
[2020-09-24 16:44:09,380 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:09" (1/1) ...
[2020-09-24 16:44:09,391 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:09" (1/1) ...
[2020-09-24 16:44:09,397 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:09" (1/1) ...
[2020-09-24 16:44:09,406 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 16:44:09,406 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 16:44:09,409 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 16:44:09,409 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 16:44:09,411 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:09" (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 16:44:09,505 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 16:44:09,506 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 16:44:09,506 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:44:09,507 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 16:44:09,507 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 16:44:09,507 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 16:44:09,507 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 16:44:09,507 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 16:44:09,508 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 16:44:09,509 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-09-24 16:44:09,509 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 16:44:09,509 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-24 16:44:09,509 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 16:44:09,509 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor
[2020-09-24 16:44:09,509 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 16:44:09,510 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 16:44:09,511 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 16:44:09,511 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 16:44:09,511 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 16:44:09,512 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-09-24 16:44:09,512 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-24 16:44:09,512 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 16:44:09,512 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 16:44:09,513 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1
[2020-09-24 16:44:09,513 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 16:44:09,514 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 16:44:09,514 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 16:44:09,514 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 16:44:09,514 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 16:44:09,514 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 16:44:09,515 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 16:44:09,515 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:44:09,515 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 16:44:09,515 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 16:44:09,515 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 16:44:09,515 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 16:44:09,516 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 16:44:09,516 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 16:44:09,516 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 16:44:09,516 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 16:44:09,516 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 16:44:09,516 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 16:44:09,516 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 16:44:09,517 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 16:44:09,517 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 16:44:09,517 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 16:44:09,517 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 16:44:09,517 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 16:44:09,517 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-09-24 16:44:09,517 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 16:44:09,518 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 16:44:09,518 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 16:44:09,518 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 16:44:09,518 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 16:44:09,519 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 16:44:09,519 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-24 16:44:09,519 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1
[2020-09-24 16:44:09,519 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 16:44:09,519 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-24 16:44:09,519 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-09-24 16:44:09,520 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor
[2020-09-24 16:44:09,520 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 16:44:09,520 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 16:44:09,520 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 16:44:09,520 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 16:44:09,520 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 16:44:09,521 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 16:44:09,521 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 16:44:09,521 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 16:44:09,521 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 16:44:09,521 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 16:44:09,522 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 16:44:09,523 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 16:44:09,523 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 16:44:09,524 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 16:44:09,524 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 16:44:09,524 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 16:44:09,524 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 16:44:09,525 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 16:44:09,525 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 16:44:09,525 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 16:44:09,525 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 16:44:09,525 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:44:09,526 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:44:09,526 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 16:44:09,526 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 16:44:09,527 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 16:44:09,527 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 16:44:09,527 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 16:44:09,527 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 16:44:09,527 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 16:44:09,527 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 16:44:10,705 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 16:44:10,705 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 16:44:10,712 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:44:10 BoogieIcfgContainer
[2020-09-24 16:44:10,713 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 16:44:10,714 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 16:44:10,714 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 16:44:10,718 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 16:44:10,718 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:44:08" (1/3) ...
[2020-09-24 16:44:10,719 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ca5eda1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:44:10, skipping insertion in model container
[2020-09-24 16:44:10,720 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:09" (2/3) ...
[2020-09-24 16:44:10,720 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ca5eda1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:44:10, skipping insertion in model container
[2020-09-24 16:44:10,720 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:44:10" (3/3) ...
[2020-09-24 16:44:10,723 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec1_product43.cil.c
[2020-09-24 16:44:10,735 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 16:44:10,747 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 16:44:10,770 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 16:44:10,804 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 16:44:10,805 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 16:44:10,805 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 16:44:10,805 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 16:44:10,805 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 16:44:10,805 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 16:44:10,806 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 16:44:10,806 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 16:44:10,838 INFO  L276                IsEmpty]: Start isEmpty. Operand 304 states.
[2020-09-24 16:44:10,855 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 143
[2020-09-24 16:44:10,856 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:44:10,857 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 16:44:10,858 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:44:10,866 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:44:10,867 INFO  L82        PathProgramCache]: Analyzing trace with hash 1378033390, now seen corresponding path program 1 times
[2020-09-24 16:44:10,880 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:44:10,881 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [165405851]
[2020-09-24 16:44:10,881 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:44:11,223 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:44:11,382 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:11,657 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:12,956 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:14,046 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:15,604 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:28,186 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:44:28,186 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 173
[2020-09-24 16:44:28,187 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-24 16:44:28,187 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 16953
[2020-09-24 16:44:28,189 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:44:28,189 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 12
[2020-09-24 16:44:28,189 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 78
[2020-09-24 16:44:28,189 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 79
[2020-09-24 16:44:28,190 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-24 16:44:28,689 WARN  L193               SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 16:44:28,692 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:44:28,729 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:44:28,768 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:28,985 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:44:28,985 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 16:44:28,985 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:44:28,986 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 254
[2020-09-24 16:44:28,986 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:44:28,986 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:44:28,986 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:44:28,986 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 74
[2020-09-24 16:44:28,987 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:44:29,086 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 16:44:29,089 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:44:29,090 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:29,096 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:44:29,096 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:44:29,097 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:44:29,097 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 16:44:29,097 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:44:29,098 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:44:29,098 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:44:29,098 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:44:29,099 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:44:29,101 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 16:44:29,107 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:44:29,115 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:29,118 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:44:29,119 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:44:29,119 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:44:29,119 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-24 16:44:29,119 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:44:29,120 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:44:29,120 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:44:29,120 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:44:29,121 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:44:29,123 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 16:44:29,125 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:44:29,127 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:29,148 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:44:29,148 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:44:29,149 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:44:29,149 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 22
[2020-09-24 16:44:29,149 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:44:29,150 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:44:29,150 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:44:29,150 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:44:29,150 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:44:29,153 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 16:44:29,154 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:44:29,157 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:29,160 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:44:29,160 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:44:29,160 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:44:29,161 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:44:29,161 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:44:29,161 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:44:29,161 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:44:29,162 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:44:29,162 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:44:29,166 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120
[2020-09-24 16:44:29,168 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:44:29,169 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:29,177 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:44:29,177 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:44:29,177 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:44:29,178 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 16:44:29,178 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:44:29,178 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 16:44:29,178 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:44:29,179 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:44:29,179 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:44:29,206 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130
[2020-09-24 16:44:29,207 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:44:29,208 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:29,215 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:44:29,215 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:44:29,215 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:44:29,215 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 16:44:29,216 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:44:29,216 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:44:29,216 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:44:29,216 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:44:29,217 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:44:29,255 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 16:44:29,256 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [165405851]
[2020-09-24 16:44:29,259 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:44:29,259 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-24 16:44:29,261 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117962959]
[2020-09-24 16:44:29,269 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-24 16:44:29,270 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:44:29,289 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-24 16:44:29,290 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-24 16:44:29,293 INFO  L87              Difference]: Start difference. First operand 304 states. Second operand 8 states.
[2020-09-24 16:44:29,836 WARN  L193               SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:44:30,994 WARN  L193               SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:44:31,338 WARN  L193               SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:44:31,686 WARN  L193               SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:44:32,050 WARN  L193               SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:44:32,403 WARN  L193               SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:44:33,140 WARN  L193               SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:44:33,488 WARN  L193               SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:44:33,948 WARN  L193               SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 16:44:35,327 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:44:35,327 INFO  L93              Difference]: Finished difference Result 639 states and 775 transitions.
[2020-09-24 16:44:35,333 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2020-09-24 16:44:35,335 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 142
[2020-09-24 16:44:35,336 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:44:35,358 INFO  L225             Difference]: With dead ends: 639
[2020-09-24 16:44:35,358 INFO  L226             Difference]: Without dead ends: 429
[2020-09-24 16:44:35,370 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272
[2020-09-24 16:44:35,394 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 429 states.
[2020-09-24 16:44:35,502 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 371.
[2020-09-24 16:44:35,504 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 371 states.
[2020-09-24 16:44:35,507 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 409 transitions.
[2020-09-24 16:44:35,509 INFO  L78                 Accepts]: Start accepts. Automaton has 371 states and 409 transitions. Word has length 142
[2020-09-24 16:44:35,510 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:44:35,511 INFO  L479      AbstractCegarLoop]: Abstraction has 371 states and 409 transitions.
[2020-09-24 16:44:35,511 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-24 16:44:35,511 INFO  L276                IsEmpty]: Start isEmpty. Operand 371 states and 409 transitions.
[2020-09-24 16:44:35,520 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 158
[2020-09-24 16:44:35,520 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:44:35,520 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]
[2020-09-24 16:44:35,521 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 16:44:35,521 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:44:35,522 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:44:35,522 INFO  L82        PathProgramCache]: Analyzing trace with hash 1097537555, now seen corresponding path program 1 times
[2020-09-24 16:44:35,522 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:44:35,522 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1732335324]
[2020-09-24 16:44:35,523 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:44:35,571 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:44:35,621 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:36,159 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:38,268 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:41,316 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:44:41,317 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 188
[2020-09-24 16:44:41,317 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 16:44:41,317 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5742
[2020-09-24 16:44:41,317 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:44:41,318 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 14
[2020-09-24 16:44:41,318 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 79
[2020-09-24 16:44:41,318 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 105
[2020-09-24 16:44:41,318 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:44:41,619 WARN  L193               SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 16:44:41,620 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:44:41,651 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:44:41,689 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:41,866 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:44:41,866 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 16:44:41,866 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:44:41,867 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 212
[2020-09-24 16:44:41,867 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:44:41,867 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:44:41,867 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:44:41,867 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 75
[2020-09-24 16:44:41,868 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:44:41,909 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 16:44:41,911 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:44:41,912 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:41,915 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:44:41,915 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:44:41,915 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:44:41,915 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:44:41,916 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:44:41,916 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:44:41,916 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:44:41,916 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:44:41,916 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:44:41,918 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 16:44:41,918 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:44:41,921 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:41,924 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:44:41,925 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:44:41,925 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:44:41,925 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:44:41,926 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:44:41,926 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:44:41,926 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:44:41,926 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:44:41,926 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:44:41,927 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 16:44:41,930 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:44:41,932 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:41,938 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:44:41,938 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:44:41,939 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:44:41,939 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 16:44:41,939 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:44:41,939 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:44:41,940 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:44:41,940 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:44:41,940 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:44:41,942 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 16:44:41,943 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:44:41,944 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:41,946 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:44:41,946 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:44:41,946 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:44:41,946 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:44:41,946 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:44:41,947 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:44:41,947 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:44:41,947 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:44:41,947 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:44:41,962 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120
[2020-09-24 16:44:41,963 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:44:41,965 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:41,969 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:44:41,969 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 16:44:41,970 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:44:41,970 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 16:44:41,970 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:44:41,970 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:44:41,970 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:44:41,971 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-24 16:44:41,971 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:44:41,972 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135
[2020-09-24 16:44:41,973 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:44:41,975 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:41,978 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:44:41,978 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:44:41,978 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:44:41,978 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:44:41,979 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:44:41,979 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:44:41,979 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:44:41,979 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:44:41,979 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:44:41,981 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145
[2020-09-24 16:44:41,982 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:44:41,984 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:41,990 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:44:41,990 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:44:41,990 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:44:41,990 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 16:44:41,991 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:44:41,991 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 16:44:41,991 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:44:41,991 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:44:41,991 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:44:42,064 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 16:44:42,064 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1732335324]
[2020-09-24 16:44:42,065 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:44:42,065 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2020-09-24 16:44:42,065 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078093938]
[2020-09-24 16:44:42,067 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-24 16:44:42,068 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:44:42,068 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-24 16:44:42,068 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2020-09-24 16:44:42,069 INFO  L87              Difference]: Start difference. First operand 371 states and 409 transitions. Second operand 9 states.
[2020-09-24 16:44:42,576 WARN  L193               SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:44:43,858 WARN  L193               SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-24 16:44:44,192 WARN  L193               SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 192
[2020-09-24 16:44:44,544 WARN  L193               SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:44:44,857 WARN  L193               SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:44:45,152 WARN  L193               SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:44:46,437 WARN  L193               SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 16:44:46,765 WARN  L193               SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:44:47,097 WARN  L193               SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 16:44:47,634 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:44:47,634 INFO  L93              Difference]: Finished difference Result 886 states and 1074 transitions.
[2020-09-24 16:44:47,635 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2020-09-24 16:44:47,635 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 157
[2020-09-24 16:44:47,637 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:44:47,648 INFO  L225             Difference]: With dead ends: 886
[2020-09-24 16:44:47,648 INFO  L226             Difference]: Without dead ends: 625
[2020-09-24 16:44:47,653 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342
[2020-09-24 16:44:47,654 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 625 states.
[2020-09-24 16:44:47,769 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 533.
[2020-09-24 16:44:47,769 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 533 states.
[2020-09-24 16:44:47,773 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 617 transitions.
[2020-09-24 16:44:47,774 INFO  L78                 Accepts]: Start accepts. Automaton has 533 states and 617 transitions. Word has length 157
[2020-09-24 16:44:47,775 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:44:47,775 INFO  L479      AbstractCegarLoop]: Abstraction has 533 states and 617 transitions.
[2020-09-24 16:44:47,775 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-09-24 16:44:47,775 INFO  L276                IsEmpty]: Start isEmpty. Operand 533 states and 617 transitions.
[2020-09-24 16:44:47,780 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 262
[2020-09-24 16:44:47,780 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:44:47,781 INFO  L422         BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:44:47,781 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 16:44:47,781 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:44:47,782 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:44:47,782 INFO  L82        PathProgramCache]: Analyzing trace with hash 1959341444, now seen corresponding path program 1 times
[2020-09-24 16:44:47,782 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:44:47,782 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2077107636]
[2020-09-24 16:44:47,783 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:44:47,851 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:44:47,912 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:48,032 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:48,141 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:48,233 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:48,323 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:49,519 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:49,619 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:44:51,989 FATAL L256   erpolLogProxyWrapper]: Now shrinking...