/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/eca-rers2012/Problem02_label20.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 17:12:32,179 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 17:12:32,182 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 17:12:32,212 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 17:12:32,212 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 17:12:32,214 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 17:12:32,215 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 17:12:32,217 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 17:12:32,219 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 17:12:32,220 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 17:12:32,222 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 17:12:32,223 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 17:12:32,223 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 17:12:32,225 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 17:12:32,226 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 17:12:32,227 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 17:12:32,228 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 17:12:32,229 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 17:12:32,232 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 17:12:32,234 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 17:12:32,236 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 17:12:32,237 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 17:12:32,239 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 17:12:32,240 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 17:12:32,243 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 17:12:32,244 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 17:12:32,244 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 17:12:32,245 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 17:12:32,246 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 17:12:32,247 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 17:12:32,247 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 17:12:32,248 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 17:12:32,249 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 17:12:32,250 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 17:12:32,252 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 17:12:32,252 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 17:12:32,253 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 17:12:32,253 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 17:12:32,253 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 17:12:32,254 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 17:12:32,255 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 17:12:32,256 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 17:12:32,283 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 17:12:32,284 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 17:12:32,285 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 17:12:32,285 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 17:12:32,286 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 17:12:32,286 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 17:12:32,286 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 17:12:32,286 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 17:12:32,287 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 17:12:32,287 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 17:12:32,287 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 17:12:32,287 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 17:12:32,288 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 17:12:32,288 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 17:12:32,288 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 17:12:32,288 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 17:12:32,288 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 17:12:32,289 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 17:12:32,289 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 17:12:32,289 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 17:12:32,289 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 17:12:32,289 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 17:12:32,290 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 17:12:32,290 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 17:12:32,290 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 17:12:32,290 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 17:12:32,291 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 17:12:32,291 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 17:12:32,291 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 17:12:32,291 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 17:12:32,771 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 17:12:32,798 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 17:12:32,802 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 17:12:32,804 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 17:12:32,805 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 17:12:32,807 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label20.c
[2020-09-24 17:12:32,904 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c6ef03e6d/729bd3ac99c04746868131ab8073f2a5/FLAG4e5474504
[2020-09-24 17:12:33,563 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 17:12:33,564 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label20.c
[2020-09-24 17:12:33,580 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c6ef03e6d/729bd3ac99c04746868131ab8073f2a5/FLAG4e5474504
[2020-09-24 17:12:33,790 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c6ef03e6d/729bd3ac99c04746868131ab8073f2a5
[2020-09-24 17:12:33,805 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 17:12:33,811 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 17:12:33,812 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 17:12:33,812 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 17:12:33,816 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 17:12:33,817 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:12:33" (1/1) ...
[2020-09-24 17:12:33,821 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d72532b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:12:33, skipping insertion in model container
[2020-09-24 17:12:33,821 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:12:33" (1/1) ...
[2020-09-24 17:12:33,830 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 17:12:33,885 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 17:12:34,330 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 17:12:34,337 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 17:12:34,574 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 17:12:34,595 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 17:12:34,596 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:12:34 WrapperNode
[2020-09-24 17:12:34,596 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 17:12:34,597 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 17:12:34,597 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 17:12:34,597 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 17:12:34,624 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:12:34" (1/1) ...
[2020-09-24 17:12:34,625 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:12:34" (1/1) ...
[2020-09-24 17:12:34,645 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:12:34" (1/1) ...
[2020-09-24 17:12:34,645 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:12:34" (1/1) ...
[2020-09-24 17:12:34,688 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:12:34" (1/1) ...
[2020-09-24 17:12:34,707 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:12:34" (1/1) ...
[2020-09-24 17:12:34,712 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:12:34" (1/1) ...
[2020-09-24 17:12:34,724 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 17:12:34,725 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 17:12:34,725 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 17:12:34,725 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 17:12:34,727 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:12:34" (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 17:12:34,815 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 17:12:34,816 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 17:12:34,816 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output
[2020-09-24 17:12:34,816 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 17:12:34,816 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output
[2020-09-24 17:12:34,817 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 17:12:34,817 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 17:12:34,817 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2020-09-24 17:12:34,817 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 17:12:34,817 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 17:12:34,818 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 17:12:36,186 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 17:12:36,186 INFO  L295             CfgBuilder]: Removed 1 assume(true) statements.
[2020-09-24 17:12:36,198 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:12:36 BoogieIcfgContainer
[2020-09-24 17:12:36,199 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 17:12:36,200 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 17:12:36,200 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 17:12:36,206 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 17:12:36,207 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:12:33" (1/3) ...
[2020-09-24 17:12:36,208 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@590b40ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:12:36, skipping insertion in model container
[2020-09-24 17:12:36,208 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:12:34" (2/3) ...
[2020-09-24 17:12:36,209 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@590b40ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:12:36, skipping insertion in model container
[2020-09-24 17:12:36,209 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:12:36" (3/3) ...
[2020-09-24 17:12:36,212 INFO  L109   eAbstractionObserver]: Analyzing ICFG Problem02_label20.c
[2020-09-24 17:12:36,226 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 17:12:36,244 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 17:12:36,267 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 17:12:36,304 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 17:12:36,304 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 17:12:36,304 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 17:12:36,305 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 17:12:36,305 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 17:12:36,305 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 17:12:36,305 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 17:12:36,305 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 17:12:36,340 INFO  L276                IsEmpty]: Start isEmpty. Operand 527 states.
[2020-09-24 17:12:36,362 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 126
[2020-09-24 17:12:36,362 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 17:12:36,364 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]
[2020-09-24 17:12:36,364 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 17:12:36,372 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 17:12:36,373 INFO  L82        PathProgramCache]: Analyzing trace with hash -17794678, now seen corresponding path program 1 times
[2020-09-24 17:12:36,383 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 17:12:36,384 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [100677907]
[2020-09-24 17:12:36,384 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 17:12:36,635 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 17:12:36,769 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:12:37,154 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:12:37,456 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:12:39,452 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:12:39,806 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:12:42,152 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:12:42,568 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:12:44,636 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 17:12:44,637 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 134
[2020-09-24 17:12:44,637 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 7
[2020-09-24 17:12:44,637 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7994
[2020-09-24 17:12:44,639 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 17:12:44,639 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 23
[2020-09-24 17:12:44,639 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 17
[2020-09-24 17:12:44,639 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 106
[2020-09-24 17:12:44,640 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-24 17:12:45,123 WARN  L193               SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33
[2020-09-24 17:12:45,279 WARN  L193               SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33
[2020-09-24 17:12:45,436 WARN  L193               SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 32
[2020-09-24 17:12:46,091 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 17:12:46,100 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 17:12:46,107 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:12:46,159 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 17:12:46,160 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 25
[2020-09-24 17:12:46,160 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 17:12:46,160 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 58
[2020-09-24 17:12:46,161 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 17:12:46,161 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 17:12:46,161 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 17:12:46,161 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 18
[2020-09-24 17:12:46,162 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 17:12:46,361 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 17:12:46,362 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [100677907]
[2020-09-24 17:12:46,364 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 17:12:46,365 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21
[2020-09-24 17:12:46,366 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432177686]
[2020-09-24 17:12:46,373 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 21 states
[2020-09-24 17:12:46,373 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 17:12:46,388 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2020-09-24 17:12:46,390 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420
[2020-09-24 17:12:46,392 INFO  L87              Difference]: Start difference. First operand 527 states. Second operand 21 states.
[2020-09-24 17:12:47,170 WARN  L193               SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 82
[2020-09-24 17:12:47,498 WARN  L193               SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 82
[2020-09-24 17:12:47,767 WARN  L193               SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83
[2020-09-24 17:12:48,201 WARN  L193               SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87
[2020-09-24 17:12:48,709 WARN  L193               SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82
[2020-09-24 17:12:49,149 WARN  L193               SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72
[2020-09-24 17:12:49,398 WARN  L193               SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75
[2020-09-24 17:12:49,658 WARN  L193               SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82
[2020-09-24 17:12:49,881 WARN  L193               SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79
[2020-09-24 17:12:50,102 WARN  L193               SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75
[2020-09-24 17:12:50,382 WARN  L193               SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82
[2020-09-24 17:12:50,955 WARN  L193               SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82
[2020-09-24 17:12:51,460 WARN  L193               SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76
[2020-09-24 17:12:52,034 WARN  L193               SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80
[2020-09-24 17:12:52,495 WARN  L193               SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75
[2020-09-24 17:12:52,775 WARN  L193               SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75
[2020-09-24 17:12:53,182 WARN  L193               SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82
[2020-09-24 17:12:53,429 WARN  L193               SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75
[2020-09-24 17:12:54,527 WARN  L193               SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75
[2020-09-24 17:12:55,140 WARN  L193               SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75
[2020-09-24 17:12:55,899 WARN  L193               SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80
[2020-09-24 17:12:56,792 WARN  L193               SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61
[2020-09-24 17:12:57,208 WARN  L193               SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62
[2020-09-24 17:12:58,615 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 17:12:58,616 INFO  L93              Difference]: Finished difference Result 1742 states and 2476 transitions.
[2020-09-24 17:12:58,616 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. 
[2020-09-24 17:12:58,618 INFO  L78                 Accepts]: Start accepts. Automaton has 21 states. Word has length 125
[2020-09-24 17:12:58,619 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 17:12:58,646 INFO  L225             Difference]: With dead ends: 1742
[2020-09-24 17:12:58,646 INFO  L226             Difference]: Without dead ends: 1009
[2020-09-24 17:12:58,658 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1143 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=1084, Invalid=2948, Unknown=0, NotChecked=0, Total=4032
[2020-09-24 17:12:58,680 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1009 states.
[2020-09-24 17:12:58,769 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1009 to 892.
[2020-09-24 17:12:58,771 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 892 states.
[2020-09-24 17:12:58,780 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 892 states to 892 states and 1068 transitions.
[2020-09-24 17:12:58,784 INFO  L78                 Accepts]: Start accepts. Automaton has 892 states and 1068 transitions. Word has length 125
[2020-09-24 17:12:58,785 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 17:12:58,785 INFO  L479      AbstractCegarLoop]: Abstraction has 892 states and 1068 transitions.
[2020-09-24 17:12:58,786 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 21 states.
[2020-09-24 17:12:58,786 INFO  L276                IsEmpty]: Start isEmpty. Operand 892 states and 1068 transitions.
[2020-09-24 17:12:58,796 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 143
[2020-09-24 17:12:58,796 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 17:12:58,797 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 17:12:58,797 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 17:12:58,798 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 17:12:58,798 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 17:12:58,798 INFO  L82        PathProgramCache]: Analyzing trace with hash 1966462065, now seen corresponding path program 1 times
[2020-09-24 17:12:58,799 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 17:12:58,799 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1204113137]
[2020-09-24 17:12:58,799 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 17:12:58,841 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 17:12:58,876 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:12:59,008 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:12:59,159 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:13:00,409 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:13:00,465 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:13:00,927 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:13:01,919 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:13:04,508 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 17:13:04,509 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 153
[2020-09-24 17:13:04,509 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 7
[2020-09-24 17:13:04,509 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5666
[2020-09-24 17:13:04,509 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 17:13:04,510 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 24
[2020-09-24 17:13:04,510 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 17
[2020-09-24 17:13:04,510 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 110
[2020-09-24 17:13:04,510 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 17:13:05,429 WARN  L193               SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 43
[2020-09-24 17:13:05,602 WARN  L193               SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 41
[2020-09-24 17:13:05,762 WARN  L193               SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 41
[2020-09-24 17:13:05,920 WARN  L193               SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 37
[2020-09-24 17:13:06,109 WARN  L193               SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 38
[2020-09-24 17:13:06,328 WARN  L193               SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 35
[2020-09-24 17:13:06,510 WARN  L193               SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 33
[2020-09-24 17:13:06,847 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 17:13:06,855 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 17:13:06,861 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:13:06,902 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 17:13:06,902 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 25
[2020-09-24 17:13:06,902 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 17:13:06,903 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 46
[2020-09-24 17:13:06,903 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 17:13:06,903 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 17:13:06,903 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 17:13:06,903 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 18
[2020-09-24 17:13:06,904 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 17:13:07,013 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28
[2020-09-24 17:13:07,018 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 17:13:07,021 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:13:07,041 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:13:07,066 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 17:13:07,066 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 13
[2020-09-24 17:13:07,066 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 17:13:07,066 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 46
[2020-09-24 17:13:07,067 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 17:13:07,067 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 17:13:07,067 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-09-24 17:13:07,067 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 12
[2020-09-24 17:13:07,068 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 17:13:07,328 INFO  L134       CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 17:13:07,329 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1204113137]
[2020-09-24 17:13:07,330 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-24 17:13:07,330 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24
[2020-09-24 17:13:07,330 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518110645]
[2020-09-24 17:13:07,335 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 24 states
[2020-09-24 17:13:07,336 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 17:13:07,336 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants.
[2020-09-24 17:13:07,336 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552
[2020-09-24 17:13:07,337 INFO  L87              Difference]: Start difference. First operand 892 states and 1068 transitions. Second operand 24 states.
[2020-09-24 17:13:08,081 WARN  L193               SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82
[2020-09-24 17:13:08,362 WARN  L193               SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 100
[2020-09-24 17:13:08,795 WARN  L193               SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 103
[2020-09-24 17:13:08,983 WARN  L193               SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54
[2020-09-24 17:13:10,036 WARN  L193               SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83
[2020-09-24 17:13:11,366 WARN  L193               SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 105
[2020-09-24 17:13:11,520 WARN  L193               SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59
[2020-09-24 17:13:11,749 WARN  L193               SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55
[2020-09-24 17:13:12,080 WARN  L193               SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 84
[2020-09-24 17:13:12,888 WARN  L193               SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 101
[2020-09-24 17:13:13,525 WARN  L193               SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 101
[2020-09-24 17:13:13,813 WARN  L193               SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83
[2020-09-24 17:13:14,132 WARN  L193               SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101
[2020-09-24 17:13:14,479 WARN  L193               SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 98
[2020-09-24 17:13:15,020 WARN  L193               SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 98
[2020-09-24 17:13:15,345 WARN  L193               SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86
[2020-09-24 17:13:15,742 WARN  L193               SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 104
[2020-09-24 17:13:16,286 WARN  L193               SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84
[2020-09-24 17:13:16,644 WARN  L193               SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 96
[2020-09-24 17:13:16,877 WARN  L193               SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53
[2020-09-24 17:13:17,151 WARN  L193               SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 95
[2020-09-24 17:13:17,424 WARN  L193               SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51
[2020-09-24 17:13:17,751 WARN  L193               SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58
[2020-09-24 17:13:18,111 WARN  L193               SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 103
[2020-09-24 17:13:18,621 WARN  L193               SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87
[2020-09-24 17:13:18,965 WARN  L193               SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90
[2020-09-24 17:13:19,248 WARN  L193               SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50
[2020-09-24 17:13:19,478 WARN  L193               SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 103
[2020-09-24 17:13:19,746 WARN  L193               SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87
[2020-09-24 17:13:20,206 WARN  L193               SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85
[2020-09-24 17:13:20,541 WARN  L193               SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 99
[2020-09-24 17:13:20,782 WARN  L193               SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81
[2020-09-24 17:13:21,440 WARN  L193               SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 99
[2020-09-24 17:13:22,069 WARN  L193               SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77
[2020-09-24 17:13:22,615 WARN  L193               SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 97
[2020-09-24 17:13:22,906 WARN  L193               SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54
[2020-09-24 17:13:23,069 WARN  L193               SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 96
[2020-09-24 17:13:23,417 WARN  L193               SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 102
[2020-09-24 17:13:23,607 WARN  L193               SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52
[2020-09-24 17:13:23,818 WARN  L193               SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82
[2020-09-24 17:13:24,057 WARN  L193               SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59
[2020-09-24 17:13:24,796 WARN  L193               SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 102
[2020-09-24 17:13:24,986 WARN  L193               SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 91
[2020-09-24 17:13:25,223 WARN  L193               SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51
[2020-09-24 17:13:25,433 WARN  L193               SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 88
[2020-09-24 17:13:25,699 WARN  L193               SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78
[2020-09-24 17:13:26,062 WARN  L193               SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99