/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_product45.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 16:55:09,140 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 16:55:09,144 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 16:55:09,192 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 16:55:09,194 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 16:55:09,205 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 16:55:09,207 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 16:55:09,211 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 16:55:09,212 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 16:55:09,214 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 16:55:09,215 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 16:55:09,218 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 16:55:09,218 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 16:55:09,223 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 16:55:09,226 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 16:55:09,228 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 16:55:09,229 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 16:55:09,232 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 16:55:09,234 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 16:55:09,241 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 16:55:09,244 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 16:55:09,245 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 16:55:09,246 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 16:55:09,247 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 16:55:09,252 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 16:55:09,252 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 16:55:09,253 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 16:55:09,256 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 16:55:09,256 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 16:55:09,257 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 16:55:09,258 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 16:55:09,258 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 16:55:09,259 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 16:55:09,260 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 16:55:09,261 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 16:55:09,261 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 16:55:09,262 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 16:55:09,262 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 16:55:09,263 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 16:55:09,264 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 16:55:09,265 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 16:55:09,266 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 16:55:09,314 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 16:55:09,314 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 16:55:09,316 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 16:55:09,317 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 16:55:09,317 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 16:55:09,317 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 16:55:09,318 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 16:55:09,318 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 16:55:09,318 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 16:55:09,318 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 16:55:09,319 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 16:55:09,320 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 16:55:09,320 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 16:55:09,320 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 16:55:09,321 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 16:55:09,321 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 16:55:09,321 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 16:55:09,321 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 16:55:09,321 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 16:55:09,322 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 16:55:09,322 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 16:55:09,322 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 16:55:09,322 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 16:55:09,323 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 16:55:09,323 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 16:55:09,323 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 16:55:09,323 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 16:55:09,323 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 16:55:09,323 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 16:55:09,324 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 16:55:09,768 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 16:55:09,786 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 16:55:09,790 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 16:55:09,792 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 16:55:09,793 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 16:55:09,794 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product45.cil.c
[2020-09-24 16:55:09,875 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c0bd46472/b27e298de25a47d893e0ed30d69f5a96/FLAG70e190987
[2020-09-24 16:55:10,525 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 16:55:10,527 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product45.cil.c
[2020-09-24 16:55:10,548 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c0bd46472/b27e298de25a47d893e0ed30d69f5a96/FLAG70e190987
[2020-09-24 16:55:10,795 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c0bd46472/b27e298de25a47d893e0ed30d69f5a96
[2020-09-24 16:55:10,808 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 16:55:10,813 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 16:55:10,814 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 16:55:10,815 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 16:55:10,819 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 16:55:10,820 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:55:10" (1/1) ...
[2020-09-24 16:55:10,825 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7405883a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:55:10, skipping insertion in model container
[2020-09-24 16:55:10,825 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:55:10" (1/1) ...
[2020-09-24 16:55:10,833 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 16:55:10,883 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 16:55:11,377 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:55:11,405 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 16:55:11,500 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:55:11,547 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 16:55:11,548 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:55:11 WrapperNode
[2020-09-24 16:55:11,548 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 16:55:11,549 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 16:55:11,549 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 16:55:11,550 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 16:55:11,565 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:55:11" (1/1) ...
[2020-09-24 16:55:11,566 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:55:11" (1/1) ...
[2020-09-24 16:55:11,587 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:55:11" (1/1) ...
[2020-09-24 16:55:11,588 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:55:11" (1/1) ...
[2020-09-24 16:55:11,623 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:55:11" (1/1) ...
[2020-09-24 16:55:11,634 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:55:11" (1/1) ...
[2020-09-24 16:55:11,640 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:55:11" (1/1) ...
[2020-09-24 16:55:11,648 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 16:55:11,648 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 16:55:11,648 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 16:55:11,649 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 16:55:11,650 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:55:11" (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 16:55:11,732 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 16:55:11,732 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 16:55:11,733 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:55:11,733 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 16:55:11,733 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 16:55:11,733 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-24 16:55:11,733 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery
[2020-09-24 16:55:11,734 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 16:55:11,734 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor
[2020-09-24 16:55:11,735 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 16:55:11,735 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 16:55:11,735 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 16:55:11,735 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 16:55:11,735 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 16:55:11,736 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-09-24 16:55:11,736 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 16:55:11,736 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 16:55:11,736 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 16:55:11,736 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:55:11,737 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 16:55:11,737 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 16:55:11,737 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 16:55:11,737 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1
[2020-09-24 16:55:11,738 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 16:55:11,738 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 16:55:11,738 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 16:55:11,738 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 16:55:11,738 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 16:55:11,739 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 16:55:11,739 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 16:55:11,739 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 16:55:11,739 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 16:55:11,739 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 16:55:11,739 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 16:55:11,740 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-09-24 16:55:11,740 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 16:55:11,740 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 16:55:11,740 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 16:55:11,740 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 16:55:11,741 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 16:55:11,741 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 16:55:11,741 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 16:55:11,741 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 16:55:11,741 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 16:55:11,741 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 16:55:11,742 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 16:55:11,742 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 16:55:11,742 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 16:55:11,742 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 16:55:11,742 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 16:55:11,742 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-09-24 16:55:11,743 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 16:55:11,743 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 16:55:11,743 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 16:55:11,743 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 16:55:11,743 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1
[2020-09-24 16:55:11,743 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 16:55:11,744 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-24 16:55:11,744 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-09-24 16:55:11,744 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery
[2020-09-24 16:55:11,744 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 16:55:11,744 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor
[2020-09-24 16:55:11,744 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 16:55:11,745 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 16:55:11,745 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 16:55:11,745 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 16:55:11,745 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 16:55:11,745 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 16:55:11,745 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 16:55:11,746 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 16:55:11,746 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 16:55:11,746 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 16:55:11,746 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 16:55:11,746 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 16:55:11,746 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:55:11,747 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:55:11,747 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 16:55:11,747 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 16:55:11,747 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 16:55:11,747 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 16:55:11,747 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 16:55:11,748 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 16:55:11,748 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 16:55:11,748 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 16:55:11,748 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 16:55:11,748 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 16:55:11,748 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 16:55:11,749 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 16:55:11,749 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 16:55:11,749 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 16:55:11,749 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 16:55:11,749 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 16:55:12,939 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 16:55:12,940 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 16:55:12,947 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:55:12 BoogieIcfgContainer
[2020-09-24 16:55:12,948 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 16:55:12,949 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 16:55:12,949 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 16:55:12,953 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 16:55:12,954 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:55:10" (1/3) ...
[2020-09-24 16:55:12,955 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d88c2d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:55:12, skipping insertion in model container
[2020-09-24 16:55:12,955 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:55:11" (2/3) ...
[2020-09-24 16:55:12,955 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d88c2d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:55:12, skipping insertion in model container
[2020-09-24 16:55:12,956 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:55:12" (3/3) ...
[2020-09-24 16:55:12,958 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec4_product45.cil.c
[2020-09-24 16:55:12,970 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 16:55:12,981 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 16:55:13,002 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 16:55:13,033 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 16:55:13,033 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 16:55:13,033 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 16:55:13,033 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 16:55:13,033 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 16:55:13,034 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 16:55:13,034 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 16:55:13,034 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 16:55:13,060 INFO  L276                IsEmpty]: Start isEmpty. Operand 315 states.
[2020-09-24 16:55:13,077 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 143
[2020-09-24 16:55:13,078 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:55:13,079 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 16:55:13,080 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:55:13,087 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:55:13,088 INFO  L82        PathProgramCache]: Analyzing trace with hash 2095519096, now seen corresponding path program 1 times
[2020-09-24 16:55:13,099 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:55:13,100 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [215500148]
[2020-09-24 16:55:13,100 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:55:13,448 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:55:13,595 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:13,844 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:14,548 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:15,774 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:15,971 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:34,822 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:55:34,823 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 173
[2020-09-24 16:55:34,823 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-24 16:55:34,823 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 21365
[2020-09-24 16:55:34,825 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:55:34,826 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:55:34,826 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 129
[2020-09-24 16:55:34,826 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:55:34,826 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-24 16:55:35,225 WARN  L193               SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 16:55:35,230 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:55:35,257 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:55:35,269 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:35,370 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:55:35,371 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 16:55:35,371 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:55:35,371 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 112
[2020-09-24 16:55:35,372 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:55:35,372 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:55:35,372 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:55:35,373 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:55:35,373 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:55:35,452 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 16:55:35,454 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:55:35,455 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:35,457 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:55:35,457 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:55:35,457 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:55:35,458 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:55:35,458 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:55:35,458 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:55:35,458 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:55:35,459 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:55:35,459 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:55:35,462 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 16:55:35,465 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:55:35,467 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:35,469 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:55:35,469 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:55:35,469 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:55:35,470 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:55:35,470 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:55:35,470 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:55:35,470 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:55:35,471 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:55:35,471 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:55:35,473 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 16:55:35,474 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:55:35,475 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:35,479 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:55:35,479 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:55:35,480 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:55:35,480 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:55:35,480 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:55:35,480 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:55:35,480 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:55:35,481 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:55:35,481 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:55:35,482 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 16:55:35,483 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:55:35,485 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:35,486 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:55:35,486 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:55:35,486 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:55:35,487 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:55:35,487 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:55:35,487 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:55:35,487 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:55:35,487 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:55:35,488 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:55:35,489 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120
[2020-09-24 16:55:35,490 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:55:35,491 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:35,492 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:55:35,493 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:55:35,493 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:55:35,493 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:55:35,493 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:55:35,494 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:55:35,494 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:55:35,494 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:55:35,494 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:55:35,496 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130
[2020-09-24 16:55:35,499 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:55:35,500 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:35,502 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:55:35,502 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:55:35,502 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:55:35,503 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:55:35,503 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:55:35,503 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:55:35,503 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:55:35,503 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:55:35,504 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:55:35,538 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 16:55:35,539 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [215500148]
[2020-09-24 16:55:35,541 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:55:35,542 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-24 16:55:35,543 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221791084]
[2020-09-24 16:55:35,553 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-24 16:55:35,553 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:55:35,571 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-24 16:55:35,573 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 16:55:35,575 INFO  L87              Difference]: Start difference. First operand 315 states. Second operand 3 states.
[2020-09-24 16:55:37,005 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:55:37,006 INFO  L93              Difference]: Finished difference Result 497 states and 590 transitions.
[2020-09-24 16:55:37,007 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-09-24 16:55:37,008 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 142
[2020-09-24 16:55:37,010 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:55:37,030 INFO  L225             Difference]: With dead ends: 497
[2020-09-24 16:55:37,030 INFO  L226             Difference]: Without dead ends: 307
[2020-09-24 16:55:37,037 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 16:55:37,059 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 307 states.
[2020-09-24 16:55:37,145 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 264.
[2020-09-24 16:55:37,147 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 264 states.
[2020-09-24 16:55:37,149 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 287 transitions.
[2020-09-24 16:55:37,152 INFO  L78                 Accepts]: Start accepts. Automaton has 264 states and 287 transitions. Word has length 142
[2020-09-24 16:55:37,153 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:55:37,153 INFO  L479      AbstractCegarLoop]: Abstraction has 264 states and 287 transitions.
[2020-09-24 16:55:37,154 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-24 16:55:37,154 INFO  L276                IsEmpty]: Start isEmpty. Operand 264 states and 287 transitions.
[2020-09-24 16:55:37,159 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 144
[2020-09-24 16:55:37,159 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:55:37,159 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]
[2020-09-24 16:55:37,160 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 16:55:37,160 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:55:37,160 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:55:37,160 INFO  L82        PathProgramCache]: Analyzing trace with hash -89616240, now seen corresponding path program 1 times
[2020-09-24 16:55:37,161 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:55:37,161 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1489362668]
[2020-09-24 16:55:37,161 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:55:37,205 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:55:37,252 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:37,337 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:37,711 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:38,633 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:42,277 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:03,344 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:03,344 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 174
[2020-09-24 16:56:03,345 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-24 16:56:03,345 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 26136
[2020-09-24 16:56:03,346 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:03,346 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:56:03,347 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 128
[2020-09-24 16:56:03,347 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 3
[2020-09-24 16:56:03,347 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:56:03,694 WARN  L193               SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 16:56:03,695 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:56:03,704 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:03,713 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:03,803 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:03,804 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 16:56:03,804 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:03,804 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 98
[2020-09-24 16:56:03,805 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:03,805 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:56:03,805 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:56:03,805 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:56:03,805 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:56:03,839 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 16:56:03,839 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:03,840 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:03,842 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:03,842 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:56:03,842 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:03,842 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 16:56:03,843 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:03,843 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:56:03,843 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:56:03,843 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:56:03,843 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:56:03,846 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 16:56:03,847 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:03,848 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:03,849 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:03,850 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:56:03,850 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:03,850 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:56:03,850 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:03,851 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:56:03,851 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:56:03,851 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:56:03,852 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:56:03,855 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 16:56:03,857 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:03,858 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:03,862 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:03,862 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:56:03,862 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:03,862 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:56:03,862 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:03,863 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:56:03,863 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:56:03,863 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:56:03,863 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:56:03,867 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 16:56:03,867 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:03,868 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:03,873 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:03,873 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:56:03,873 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:03,874 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:56:03,874 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:03,874 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:56:03,874 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:56:03,874 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:56:03,875 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:56:03,876 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-24 16:56:03,878 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:03,881 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:03,882 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:03,883 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:56:03,883 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:03,883 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:56:03,883 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:03,883 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:56:03,884 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:56:03,884 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:56:03,884 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:56:03,885 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-24 16:56:03,886 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:03,888 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:03,889 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:03,889 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:56:03,889 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:03,890 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:56:03,890 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:03,890 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:56:03,890 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:56:03,891 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:56:03,891 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:56:03,918 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 16:56:03,919 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1489362668]
[2020-09-24 16:56:03,919 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:56:03,919 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-24 16:56:03,920 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512125630]
[2020-09-24 16:56:03,923 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-24 16:56:03,923 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:56:03,924 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-24 16:56:03,924 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-24 16:56:03,924 INFO  L87              Difference]: Start difference. First operand 264 states and 287 transitions. Second operand 4 states.
[2020-09-24 16:56:04,605 WARN  L193               SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 16:56:05,728 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:56:05,729 INFO  L93              Difference]: Finished difference Result 414 states and 465 transitions.
[2020-09-24 16:56:05,729 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-09-24 16:56:05,730 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 143
[2020-09-24 16:56:05,731 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:56:05,735 INFO  L225             Difference]: With dead ends: 414
[2020-09-24 16:56:05,735 INFO  L226             Difference]: Without dead ends: 290
[2020-09-24 16:56:05,737 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-09-24 16:56:05,738 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 290 states.
[2020-09-24 16:56:05,778 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 254.
[2020-09-24 16:56:05,778 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 254 states.
[2020-09-24 16:56:05,780 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 274 transitions.
[2020-09-24 16:56:05,781 INFO  L78                 Accepts]: Start accepts. Automaton has 254 states and 274 transitions. Word has length 143
[2020-09-24 16:56:05,782 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:56:05,782 INFO  L479      AbstractCegarLoop]: Abstraction has 254 states and 274 transitions.
[2020-09-24 16:56:05,782 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-24 16:56:05,782 INFO  L276                IsEmpty]: Start isEmpty. Operand 254 states and 274 transitions.
[2020-09-24 16:56:05,785 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 153
[2020-09-24 16:56:05,785 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:56:05,785 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]
[2020-09-24 16:56:05,785 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 16:56:05,786 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:56:05,786 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:56:05,786 INFO  L82        PathProgramCache]: Analyzing trace with hash -407616120, now seen corresponding path program 1 times
[2020-09-24 16:56:05,786 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:56:05,787 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2094421805]
[2020-09-24 16:56:05,787 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:56:05,827 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:05,874 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:06,047 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:06,716 FATAL L256   erpolLogProxyWrapper]: Now shrinking...