/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 enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/sum_10x0-2.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-25 02:04:01,717 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-25 02:04:01,722 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 02:04:01,764 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 02:04:01,765 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 02:04:01,775 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 02:04:01,777 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 02:04:01,779 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 02:04:01,782 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 02:04:01,783 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 02:04:01,785 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 02:04:01,786 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 02:04:01,787 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 02:04:01,787 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 02:04:01,790 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 02:04:01,793 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 02:04:01,794 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 02:04:01,797 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 02:04:01,800 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 02:04:01,804 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 02:04:01,806 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 02:04:01,810 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 02:04:01,812 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 02:04:01,813 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 02:04:01,818 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 02:04:01,818 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 02:04:01,818 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 02:04:01,821 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 02:04:01,821 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 02:04:01,823 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 02:04:01,823 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 02:04:01,824 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 02:04:01,825 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 02:04:01,826 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 02:04:01,827 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 02:04:01,827 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 02:04:01,828 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 02:04:01,828 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 02:04:01,828 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 02:04:01,829 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 02:04:01,830 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 02:04:01,831 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
[2020-09-25 02:04:01,856 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-25 02:04:01,856 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 02:04:01,858 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 02:04:01,858 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-25 02:04:01,858 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-25 02:04:01,858 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 02:04:01,859 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-25 02:04:01,859 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-25 02:04:01,859 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-25 02:04:01,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-25 02:04:01,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 02:04:01,859 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 02:04:01,860 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 02:04:01,860 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-25 02:04:01,860 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-25 02:04:01,860 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-25 02:04:01,860 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-25 02:04:01,861 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 02:04:01,861 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-25 02:04:01,861 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-25 02:04:01,861 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-25 02:04:01,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 02:04:01,862 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 02:04:01,862 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 02:04:01,862 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 02:04:01,862 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-25 02:04:01,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 02:04:01,863 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 02:04:01,863 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-25 02:04:01,863 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;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;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;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;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;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;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;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;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;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;
[2020-09-25 02:04:02,314 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 02:04:02,331 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 02:04:02,336 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 02:04:02,338 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-25 02:04:02,338 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-25 02:04:02,339 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/sum_10x0-2.c
[2020-09-25 02:04:02,427 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a1c9343cf/26309ce8f7354f7ea8926dbba78dd1d3/FLAG2d316786c
[2020-09-25 02:04:02,933 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-25 02:04:02,934 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/sum_10x0-2.c
[2020-09-25 02:04:02,944 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a1c9343cf/26309ce8f7354f7ea8926dbba78dd1d3/FLAG2d316786c
[2020-09-25 02:04:03,296 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a1c9343cf/26309ce8f7354f7ea8926dbba78dd1d3
[2020-09-25 02:04:03,309 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 02:04:03,314 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 02:04:03,315 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 02:04:03,315 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 02:04:03,319 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 02:04:03,320 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:04:03" (1/1) ...
[2020-09-25 02:04:03,324 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@528baabb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:04:03, skipping insertion in model container
[2020-09-25 02:04:03,324 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:04:03" (1/1) ...
[2020-09-25 02:04:03,333 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-25 02:04:03,356 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-25 02:04:03,555 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 02:04:03,560 INFO L203 MainTranslator]: Completed pre-run
[2020-09-25 02:04:03,579 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 02:04:03,597 INFO L208 MainTranslator]: Completed translation
[2020-09-25 02:04:03,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:04:03 WrapperNode
[2020-09-25 02:04:03,597 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 02:04:03,598 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 02:04:03,598 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 02:04:03,599 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 02:04:03,615 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:04:03" (1/1) ...
[2020-09-25 02:04:03,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:04:03" (1/1) ...
[2020-09-25 02:04:03,621 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:04:03" (1/1) ...
[2020-09-25 02:04:03,621 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:04:03" (1/1) ...
[2020-09-25 02:04:03,624 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:04:03" (1/1) ...
[2020-09-25 02:04:03,627 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:04:03" (1/1) ...
[2020-09-25 02:04:03,628 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:04:03" (1/1) ...
[2020-09-25 02:04:03,629 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 02:04:03,630 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 02:04:03,630 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 02:04:03,630 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-25 02:04:03,631 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:04:03" (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
[2020-09-25 02:04:03,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 02:04:03,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 02:04:03,778 INFO L138 BoogieDeclarations]: Found implementation of procedure sum
[2020-09-25 02:04:03,778 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 02:04:03,778 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 02:04:03,778 INFO L130 BoogieDeclarations]: Found specification of procedure sum
[2020-09-25 02:04:03,778 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-25 02:04:03,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 02:04:03,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 02:04:03,982 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 02:04:03,982 INFO L295 CfgBuilder]: Removed 0 assume(true) statements.
[2020-09-25 02:04:03,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:04:03 BoogieIcfgContainer
[2020-09-25 02:04:03,988 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 02:04:04,004 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 02:04:04,004 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 02:04:04,009 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-25 02:04:04,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:04:03" (1/3) ...
[2020-09-25 02:04:04,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73234926 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:04:04, skipping insertion in model container
[2020-09-25 02:04:04,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:04:03" (2/3) ...
[2020-09-25 02:04:04,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73234926 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:04:04, skipping insertion in model container
[2020-09-25 02:04:04,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:04:03" (3/3) ...
[2020-09-25 02:04:04,016 INFO L109 eAbstractionObserver]: Analyzing ICFG sum_10x0-2.c
[2020-09-25 02:04:04,048 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 02:04:04,058 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 02:04:04,095 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 02:04:04,126 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-25 02:04:04,126 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-25 02:04:04,126 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 02:04:04,126 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 02:04:04,127 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 02:04:04,127 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-25 02:04:04,127 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 02:04:04,128 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 02:04:04,151 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states.
[2020-09-25 02:04:04,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2020-09-25 02:04:04,158 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 02:04:04,159 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 02:04:04,160 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 02:04:04,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 02:04:04,166 INFO L82 PathProgramCache]: Analyzing trace with hash 989240825, now seen corresponding path program 1 times
[2020-09-25 02:04:04,174 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 02:04:04,175 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [779835774]
[2020-09-25 02:04:04,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 02:04:04,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:04,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:04,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:04,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:04,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27
[2020-09-25 02:04:04,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 02:04:04,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207
[2020-09-25 02:04:04,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:04,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-25 02:04:04,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11
[2020-09-25 02:04:04,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-25 02:04:04,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7
[2020-09-25 02:04:04,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 02:04:04,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:04,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:04,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:04,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:04:04,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:04,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 02:04:04,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:04,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:04:04,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:04,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:04:04,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:04,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-09-25 02:04:04,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:04,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:04,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:04,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 02:04:04,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:04,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69
[2020-09-25 02:04:04,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:04,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-25 02:04:04,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-25 02:04:04,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-25 02:04:04,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:04:04,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 02:04:04,736 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [779835774]
[2020-09-25 02:04:04,739 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 02:04:04,739 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 02:04:04,740 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451977678]
[2020-09-25 02:04:04,746 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 02:04:04,747 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 02:04:04,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 02:04:04,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-09-25 02:04:04,769 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 5 states.
[2020-09-25 02:04:04,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 02:04:04,885 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions.
[2020-09-25 02:04:04,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-09-25 02:04:04,887 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18
[2020-09-25 02:04:04,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 02:04:04,903 INFO L225 Difference]: With dead ends: 39
[2020-09-25 02:04:04,904 INFO L226 Difference]: Without dead ends: 25
[2020-09-25 02:04:04,914 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-25 02:04:04,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states.
[2020-09-25 02:04:04,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25.
[2020-09-25 02:04:04,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states.
[2020-09-25 02:04:04,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions.
[2020-09-25 02:04:04,970 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 18
[2020-09-25 02:04:04,970 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 02:04:04,970 INFO L479 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions.
[2020-09-25 02:04:04,970 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 02:04:04,971 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions.
[2020-09-25 02:04:04,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2020-09-25 02:04:04,973 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 02:04:04,973 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 02:04:04,974 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 02:04:04,974 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 02:04:04,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 02:04:04,975 INFO L82 PathProgramCache]: Analyzing trace with hash 1852726759, now seen corresponding path program 1 times
[2020-09-25 02:04:04,975 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 02:04:04,975 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [141042849]
[2020-09-25 02:04:04,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 02:04:04,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:04,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:05,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:05,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:05,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38
[2020-09-25 02:04:05,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 02:04:05,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 484
[2020-09-25 02:04:05,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:05,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-25 02:04:05,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11
[2020-09-25 02:04:05,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14
[2020-09-25 02:04:05,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:04:05,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 02:04:05,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:05,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:05,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:05,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:04:05,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:05,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 02:04:05,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:05,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:04:05,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:05,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:04:05,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:04:05,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-09-25 02:04:05,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:05,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:05,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:05,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23
[2020-09-25 02:04:05,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:05,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50
[2020-09-25 02:04:05,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:05,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-25 02:04:05,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-25 02:04:05,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19
[2020-09-25 02:04:05,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:04:05,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 02:04:05,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:05,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:05,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:05,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 02:04:05,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:05,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17
[2020-09-25 02:04:05,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:05,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 02:04:05,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:05,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-25 02:04:05,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 16
[2020-09-25 02:04:05,647 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2020-09-25 02:04:05,647 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [141042849]
[2020-09-25 02:04:05,648 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 02:04:05,648 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7
[2020-09-25 02:04:05,648 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414344649]
[2020-09-25 02:04:05,650 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-09-25 02:04:05,651 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 02:04:05,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-09-25 02:04:05,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2020-09-25 02:04:05,652 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 7 states.
[2020-09-25 02:04:05,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 02:04:05,726 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions.
[2020-09-25 02:04:05,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-09-25 02:04:05,727 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27
[2020-09-25 02:04:05,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 02:04:05,729 INFO L225 Difference]: With dead ends: 36
[2020-09-25 02:04:05,729 INFO L226 Difference]: Without dead ends: 30
[2020-09-25 02:04:05,731 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72
[2020-09-25 02:04:05,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states.
[2020-09-25 02:04:05,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30.
[2020-09-25 02:04:05,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states.
[2020-09-25 02:04:05,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions.
[2020-09-25 02:04:05,739 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 27
[2020-09-25 02:04:05,739 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 02:04:05,739 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions.
[2020-09-25 02:04:05,740 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-09-25 02:04:05,740 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions.
[2020-09-25 02:04:05,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37
[2020-09-25 02:04:05,741 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 02:04:05,741 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 02:04:05,742 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 02:04:05,742 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 02:04:05,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 02:04:05,743 INFO L82 PathProgramCache]: Analyzing trace with hash -175020829, now seen corresponding path program 2 times
[2020-09-25 02:04:05,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 02:04:05,743 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [619548728]
[2020-09-25 02:04:05,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 02:04:05,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:05,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:05,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:06,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:06,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49
[2020-09-25 02:04:06,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 02:04:06,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 568
[2020-09-25 02:04:06,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:06,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 02:04:06,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11
[2020-09-25 02:04:06,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20
[2020-09-25 02:04:06,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:06,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 02:04:06,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:06,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:06,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:06,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:04:06,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:06,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 02:04:06,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:06,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:04:06,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:06,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:04:06,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6
[2020-09-25 02:04:06,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-09-25 02:04:06,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:06,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:06,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:06,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34
[2020-09-25 02:04:06,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:06,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97
[2020-09-25 02:04:06,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:06,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 02:04:06,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-25 02:04:06,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30
[2020-09-25 02:04:06,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:06,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 02:04:06,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:06,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:06,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:06,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23
[2020-09-25 02:04:06,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:06,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49
[2020-09-25 02:04:06,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:06,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-25 02:04:06,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:06,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20
[2020-09-25 02:04:06,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:06,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 02:04:06,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:06,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:06,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:06,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 02:04:06,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:06,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12
[2020-09-25 02:04:06,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:06,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 02:04:06,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:06,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-25 02:04:06,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:04:06,614 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2020-09-25 02:04:06,615 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [619548728]
[2020-09-25 02:04:06,615 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 02:04:06,615 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8
[2020-09-25 02:04:06,615 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759285389]
[2020-09-25 02:04:06,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-25 02:04:06,616 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 02:04:06,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-25 02:04:06,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2020-09-25 02:04:06,617 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 8 states.
[2020-09-25 02:04:06,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 02:04:06,695 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions.
[2020-09-25 02:04:06,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2020-09-25 02:04:06,695 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 36
[2020-09-25 02:04:06,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 02:04:06,697 INFO L225 Difference]: With dead ends: 41
[2020-09-25 02:04:06,697 INFO L226 Difference]: Without dead ends: 35
[2020-09-25 02:04:06,698 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110
[2020-09-25 02:04:06,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states.
[2020-09-25 02:04:06,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35.
[2020-09-25 02:04:06,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states.
[2020-09-25 02:04:06,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions.
[2020-09-25 02:04:06,706 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 36
[2020-09-25 02:04:06,707 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 02:04:06,707 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions.
[2020-09-25 02:04:06,707 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-25 02:04:06,707 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions.
[2020-09-25 02:04:06,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46
[2020-09-25 02:04:06,709 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 02:04:06,709 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 02:04:06,709 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 02:04:06,709 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 02:04:06,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 02:04:06,710 INFO L82 PathProgramCache]: Analyzing trace with hash -1021564803, now seen corresponding path program 3 times
[2020-09-25 02:04:06,710 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 02:04:06,711 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [177679250]
[2020-09-25 02:04:06,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 02:04:06,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:06,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:06,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:07,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:07,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60
[2020-09-25 02:04:07,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 02:04:07,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 788
[2020-09-25 02:04:07,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:07,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10
[2020-09-25 02:04:07,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11
[2020-09-25 02:04:07,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26
[2020-09-25 02:04:07,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:07,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 02:04:07,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:07,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:07,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:07,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:04:07,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:07,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 02:04:07,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:07,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:04:07,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:07,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:04:07,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:07,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-09-25 02:04:07,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:07,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:07,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:07,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45
[2020-09-25 02:04:07,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:07,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171
[2020-09-25 02:04:07,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:07,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10
[2020-09-25 02:04:07,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-25 02:04:07,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41
[2020-09-25 02:04:07,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:07,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 02:04:07,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:07,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:07,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:07,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34
[2020-09-25 02:04:07,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:07,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95
[2020-09-25 02:04:07,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:07,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-09-25 02:04:07,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:07,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31
[2020-09-25 02:04:07,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:07,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 02:04:07,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:07,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:07,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:07,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23
[2020-09-25 02:04:07,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:07,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47
[2020-09-25 02:04:07,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:07,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-25 02:04:07,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:07,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20
[2020-09-25 02:04:07,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:07,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 02:04:07,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:07,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:07,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:07,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 02:04:07,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:07,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15
[2020-09-25 02:04:07,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:07,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 02:04:07,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:07,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-25 02:04:07,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:07,991 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 27 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2020-09-25 02:04:07,992 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [177679250]
[2020-09-25 02:04:07,992 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 02:04:07,993 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9
[2020-09-25 02:04:07,993 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342973927]
[2020-09-25 02:04:07,993 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-25 02:04:07,994 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 02:04:07,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-25 02:04:07,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72
[2020-09-25 02:04:07,995 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand 9 states.
[2020-09-25 02:04:08,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 02:04:08,108 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions.
[2020-09-25 02:04:08,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2020-09-25 02:04:08,109 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 45
[2020-09-25 02:04:08,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 02:04:08,110 INFO L225 Difference]: With dead ends: 46
[2020-09-25 02:04:08,110 INFO L226 Difference]: Without dead ends: 40
[2020-09-25 02:04:08,111 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156
[2020-09-25 02:04:08,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states.
[2020-09-25 02:04:08,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40.
[2020-09-25 02:04:08,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states.
[2020-09-25 02:04:08,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions.
[2020-09-25 02:04:08,119 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 45
[2020-09-25 02:04:08,119 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 02:04:08,119 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions.
[2020-09-25 02:04:08,120 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-09-25 02:04:08,120 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions.
[2020-09-25 02:04:08,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55
[2020-09-25 02:04:08,121 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 02:04:08,121 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 02:04:08,122 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-09-25 02:04:08,122 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 02:04:08,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 02:04:08,122 INFO L82 PathProgramCache]: Analyzing trace with hash -263249715, now seen corresponding path program 4 times
[2020-09-25 02:04:08,122 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 02:04:08,123 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [536749506]
[2020-09-25 02:04:08,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 02:04:08,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:08,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:08,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:10,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:10,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71
[2020-09-25 02:04:10,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 02:04:10,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1894
[2020-09-25 02:04:10,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:10,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12
[2020-09-25 02:04:10,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11
[2020-09-25 02:04:10,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32
[2020-09-25 02:04:10,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:04:10,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 02:04:10,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:10,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:10,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:10,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:04:10,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:10,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 02:04:10,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:10,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:04:10,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:10,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:04:10,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:04:10,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-09-25 02:04:10,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:10,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:10,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:10,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56
[2020-09-25 02:04:10,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:10,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239
[2020-09-25 02:04:10,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:10,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12
[2020-09-25 02:04:10,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-25 02:04:10,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52
[2020-09-25 02:04:10,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:04:10,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 02:04:10,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:10,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:10,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:10,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45
[2020-09-25 02:04:10,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:10,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189
[2020-09-25 02:04:10,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:10,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11
[2020-09-25 02:04:10,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:10,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42
[2020-09-25 02:04:10,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:04:10,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 02:04:10,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:10,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:10,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:10,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34
[2020-09-25 02:04:10,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:10,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126
[2020-09-25 02:04:10,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:10,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-09-25 02:04:10,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:10,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31
[2020-09-25 02:04:10,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:04:10,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 02:04:10,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:10,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:10,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:10,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23
[2020-09-25 02:04:10,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:10,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44
[2020-09-25 02:04:10,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:10,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-25 02:04:10,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:10,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20
[2020-09-25 02:04:10,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:04:10,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 02:04:10,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:10,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:10,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:10,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 02:04:10,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:10,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16
[2020-09-25 02:04:10,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:10,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 02:04:10,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:10,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-25 02:04:10,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:10,918 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked.
[2020-09-25 02:04:10,918 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [536749506]
[2020-09-25 02:04:10,919 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 02:04:10,919 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9
[2020-09-25 02:04:10,919 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018484808]
[2020-09-25 02:04:10,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-25 02:04:10,920 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 02:04:10,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-25 02:04:10,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72
[2020-09-25 02:04:10,921 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand 9 states.
[2020-09-25 02:04:11,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 02:04:11,032 INFO L93 Difference]: Finished difference Result 51 states and 52 transitions.
[2020-09-25 02:04:11,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2020-09-25 02:04:11,033 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 54
[2020-09-25 02:04:11,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 02:04:11,034 INFO L225 Difference]: With dead ends: 51
[2020-09-25 02:04:11,035 INFO L226 Difference]: Without dead ends: 45
[2020-09-25 02:04:11,035 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182
[2020-09-25 02:04:11,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states.
[2020-09-25 02:04:11,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45.
[2020-09-25 02:04:11,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states.
[2020-09-25 02:04:11,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions.
[2020-09-25 02:04:11,043 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 54
[2020-09-25 02:04:11,044 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 02:04:11,044 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions.
[2020-09-25 02:04:11,044 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-09-25 02:04:11,044 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions.
[2020-09-25 02:04:11,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2020-09-25 02:04:11,045 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 02:04:11,046 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 02:04:11,046 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-09-25 02:04:11,046 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 02:04:11,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 02:04:11,047 INFO L82 PathProgramCache]: Analyzing trace with hash 1884999187, now seen corresponding path program 5 times
[2020-09-25 02:04:11,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 02:04:11,047 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [895335286]
[2020-09-25 02:04:11,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 02:04:11,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:11,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:11,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:14,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:14,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82
[2020-09-25 02:04:14,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 02:04:14,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3675
[2020-09-25 02:04:14,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:14,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14
[2020-09-25 02:04:14,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11
[2020-09-25 02:04:14,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38
[2020-09-25 02:04:14,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:14,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 02:04:14,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:14,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:14,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:14,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:04:14,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:14,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 02:04:14,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:14,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:04:14,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:14,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:04:14,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:14,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-09-25 02:04:14,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:14,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:15,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:15,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67
[2020-09-25 02:04:15,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:15,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 283
[2020-09-25 02:04:15,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:15,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14
[2020-09-25 02:04:15,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-25 02:04:15,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63
[2020-09-25 02:04:15,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:15,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 02:04:15,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:15,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:15,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:15,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56
[2020-09-25 02:04:15,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:15,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238
[2020-09-25 02:04:15,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:15,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13
[2020-09-25 02:04:15,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:15,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53
[2020-09-25 02:04:15,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:15,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 02:04:15,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:15,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:15,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:15,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45
[2020-09-25 02:04:15,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:15,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142
[2020-09-25 02:04:15,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:15,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11
[2020-09-25 02:04:15,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:15,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42
[2020-09-25 02:04:15,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:15,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 02:04:15,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:15,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:15,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:15,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34
[2020-09-25 02:04:15,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:15,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68
[2020-09-25 02:04:15,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:15,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-09-25 02:04:15,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:15,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31
[2020-09-25 02:04:15,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:15,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 02:04:15,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:15,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:15,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:15,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23
[2020-09-25 02:04:15,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:15,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44
[2020-09-25 02:04:15,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:15,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-25 02:04:15,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:15,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20
[2020-09-25 02:04:15,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:15,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 02:04:15,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:15,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:15,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:15,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 02:04:15,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:15,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14
[2020-09-25 02:04:15,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:15,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 02:04:15,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:15,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-25 02:04:15,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:15,755 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 8 proven. 72 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked.
[2020-09-25 02:04:15,756 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [895335286]
[2020-09-25 02:04:15,757 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 02:04:15,757 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11
[2020-09-25 02:04:15,757 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446391114]
[2020-09-25 02:04:15,758 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states
[2020-09-25 02:04:15,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 02:04:15,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2020-09-25 02:04:15,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110
[2020-09-25 02:04:15,759 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand 11 states.
[2020-09-25 02:04:15,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 02:04:15,894 INFO L93 Difference]: Finished difference Result 56 states and 57 transitions.
[2020-09-25 02:04:15,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2020-09-25 02:04:15,895 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 63
[2020-09-25 02:04:15,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 02:04:15,896 INFO L225 Difference]: With dead ends: 56
[2020-09-25 02:04:15,897 INFO L226 Difference]: Without dead ends: 50
[2020-09-25 02:04:15,897 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272
[2020-09-25 02:04:15,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states.
[2020-09-25 02:04:15,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50.
[2020-09-25 02:04:15,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states.
[2020-09-25 02:04:15,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions.
[2020-09-25 02:04:15,912 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 63
[2020-09-25 02:04:15,912 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 02:04:15,912 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions.
[2020-09-25 02:04:15,913 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states.
[2020-09-25 02:04:15,913 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions.
[2020-09-25 02:04:15,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73
[2020-09-25 02:04:15,917 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 02:04:15,917 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 02:04:15,917 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2020-09-25 02:04:15,919 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 02:04:15,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 02:04:15,919 INFO L82 PathProgramCache]: Analyzing trace with hash -441437769, now seen corresponding path program 6 times
[2020-09-25 02:04:15,920 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 02:04:15,920 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [835131426]
[2020-09-25 02:04:15,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 02:04:15,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:15,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:16,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:19,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:19,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93
[2020-09-25 02:04:19,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 02:04:19,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3917
[2020-09-25 02:04:19,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:19,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 02:04:19,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11
[2020-09-25 02:04:19,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44
[2020-09-25 02:04:19,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:04:19,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 02:04:19,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:19,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:19,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:19,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:04:19,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:19,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 02:04:19,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:19,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:04:19,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:19,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:04:19,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:04:19,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-09-25 02:04:19,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:19,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:20,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:20,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78
[2020-09-25 02:04:20,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:20,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 358
[2020-09-25 02:04:20,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:20,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 02:04:20,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-25 02:04:20,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74
[2020-09-25 02:04:20,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:20,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 02:04:20,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:20,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:20,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:20,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67
[2020-09-25 02:04:20,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:20,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 260
[2020-09-25 02:04:20,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:20,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15
[2020-09-25 02:04:20,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:20,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64
[2020-09-25 02:04:20,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:20,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 02:04:20,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:20,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:20,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:20,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56
[2020-09-25 02:04:20,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:20,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184
[2020-09-25 02:04:20,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:20,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13
[2020-09-25 02:04:20,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:20,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53
[2020-09-25 02:04:20,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:20,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 02:04:20,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:20,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:20,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:20,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45
[2020-09-25 02:04:20,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:20,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126
[2020-09-25 02:04:20,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:20,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11
[2020-09-25 02:04:20,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:20,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42
[2020-09-25 02:04:20,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:20,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 02:04:20,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:20,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:21,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:21,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34
[2020-09-25 02:04:21,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:21,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84
[2020-09-25 02:04:21,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:21,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-09-25 02:04:21,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:21,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31
[2020-09-25 02:04:21,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:21,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 02:04:21,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:21,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:21,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:21,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23
[2020-09-25 02:04:21,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:21,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35
[2020-09-25 02:04:21,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:21,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-25 02:04:21,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:21,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20
[2020-09-25 02:04:21,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:21,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 02:04:21,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:21,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:21,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:21,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 02:04:21,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:21,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-25 02:04:21,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:21,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 02:04:21,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:21,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-25 02:04:21,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:21,221 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 104 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked.
[2020-09-25 02:04:21,222 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [835131426]
[2020-09-25 02:04:21,222 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 02:04:21,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12
[2020-09-25 02:04:21,224 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405041483]
[2020-09-25 02:04:21,226 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states
[2020-09-25 02:04:21,226 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 02:04:21,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2020-09-25 02:04:21,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132
[2020-09-25 02:04:21,227 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand 12 states.
[2020-09-25 02:04:21,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 02:04:21,383 INFO L93 Difference]: Finished difference Result 61 states and 62 transitions.
[2020-09-25 02:04:21,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2020-09-25 02:04:21,383 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 72
[2020-09-25 02:04:21,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 02:04:21,385 INFO L225 Difference]: With dead ends: 61
[2020-09-25 02:04:21,385 INFO L226 Difference]: Without dead ends: 55
[2020-09-25 02:04:21,388 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=222, Unknown=0, NotChecked=0, Total=342
[2020-09-25 02:04:21,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states.
[2020-09-25 02:04:21,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55.
[2020-09-25 02:04:21,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states.
[2020-09-25 02:04:21,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 56 transitions.
[2020-09-25 02:04:21,401 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 56 transitions. Word has length 72
[2020-09-25 02:04:21,401 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 02:04:21,401 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 56 transitions.
[2020-09-25 02:04:21,401 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states.
[2020-09-25 02:04:21,401 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 56 transitions.
[2020-09-25 02:04:21,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2020-09-25 02:04:21,403 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 02:04:21,406 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 02:04:21,406 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2020-09-25 02:04:21,406 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 02:04:21,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 02:04:21,407 INFO L82 PathProgramCache]: Analyzing trace with hash 999943849, now seen corresponding path program 7 times
[2020-09-25 02:04:21,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 02:04:21,408 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [601824222]
[2020-09-25 02:04:21,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 02:04:21,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:21,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:21,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:26,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:26,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104
[2020-09-25 02:04:26,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 02:04:26,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4820
[2020-09-25 02:04:26,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:26,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18
[2020-09-25 02:04:26,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11
[2020-09-25 02:04:26,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50
[2020-09-25 02:04:26,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:26,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 02:04:26,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:26,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:26,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:26,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:04:26,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:26,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 02:04:26,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:26,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:04:26,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:26,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:04:26,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:04:26,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-09-25 02:04:26,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:26,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:26,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:26,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89
[2020-09-25 02:04:26,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:26,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 355
[2020-09-25 02:04:26,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:26,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18
[2020-09-25 02:04:26,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-25 02:04:26,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85
[2020-09-25 02:04:26,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:26,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 02:04:26,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:26,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:27,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:27,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78
[2020-09-25 02:04:27,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:27,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 369
[2020-09-25 02:04:27,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:27,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17
[2020-09-25 02:04:27,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:27,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75
[2020-09-25 02:04:27,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:27,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 02:04:27,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:27,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:27,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:27,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67
[2020-09-25 02:04:27,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:27,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 263
[2020-09-25 02:04:27,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:27,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15
[2020-09-25 02:04:27,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:27,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64
[2020-09-25 02:04:27,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:27,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 02:04:27,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:27,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:27,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:27,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56
[2020-09-25 02:04:27,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:27,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184
[2020-09-25 02:04:27,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:27,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13
[2020-09-25 02:04:27,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:27,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53
[2020-09-25 02:04:27,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:27,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 02:04:27,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:27,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:27,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:27,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45
[2020-09-25 02:04:27,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:27,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111
[2020-09-25 02:04:27,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:27,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11
[2020-09-25 02:04:27,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:27,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42
[2020-09-25 02:04:27,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:27,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 02:04:27,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:27,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:27,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:27,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34
[2020-09-25 02:04:27,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:27,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81
[2020-09-25 02:04:27,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:27,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-09-25 02:04:27,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:27,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31
[2020-09-25 02:04:27,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:27,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 02:04:27,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:27,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:27,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:27,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23
[2020-09-25 02:04:27,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:27,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36
[2020-09-25 02:04:27,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:27,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-25 02:04:27,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:27,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20
[2020-09-25 02:04:27,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:27,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 02:04:27,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:27,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:27,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:27,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 02:04:27,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:27,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16
[2020-09-25 02:04:27,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:27,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 02:04:27,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:27,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-25 02:04:27,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:04:28,026 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 15 proven. 149 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked.
[2020-09-25 02:04:28,026 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [601824222]
[2020-09-25 02:04:28,026 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 02:04:28,027 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14
[2020-09-25 02:04:28,027 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721118064]
[2020-09-25 02:04:28,027 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states
[2020-09-25 02:04:28,028 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 02:04:28,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2020-09-25 02:04:28,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182
[2020-09-25 02:04:28,028 INFO L87 Difference]: Start difference. First operand 55 states and 56 transitions. Second operand 14 states.
[2020-09-25 02:04:28,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 02:04:28,165 INFO L93 Difference]: Finished difference Result 66 states and 67 transitions.
[2020-09-25 02:04:28,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2020-09-25 02:04:28,165 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 81
[2020-09-25 02:04:28,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 02:04:28,167 INFO L225 Difference]: With dead ends: 66
[2020-09-25 02:04:28,167 INFO L226 Difference]: Without dead ends: 60
[2020-09-25 02:04:28,168 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=159, Invalid=303, Unknown=0, NotChecked=0, Total=462
[2020-09-25 02:04:28,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states.
[2020-09-25 02:04:28,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60.
[2020-09-25 02:04:28,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states.
[2020-09-25 02:04:28,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 61 transitions.
[2020-09-25 02:04:28,174 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 61 transitions. Word has length 81
[2020-09-25 02:04:28,175 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 02:04:28,175 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 61 transitions.
[2020-09-25 02:04:28,175 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states.
[2020-09-25 02:04:28,175 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 61 transitions.
[2020-09-25 02:04:28,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91
[2020-09-25 02:04:28,176 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 02:04:28,176 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 02:04:28,177 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2020-09-25 02:04:28,177 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 02:04:28,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 02:04:28,177 INFO L82 PathProgramCache]: Analyzing trace with hash 1356134305, now seen corresponding path program 8 times
[2020-09-25 02:04:28,177 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 02:04:28,178 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1424315658]
[2020-09-25 02:04:28,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 02:04:28,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:28,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:28,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:33,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:33,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115
[2020-09-25 02:04:33,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 02:04:33,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999
[2020-09-25 02:04:33,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:33,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20
[2020-09-25 02:04:33,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11
[2020-09-25 02:04:33,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56
[2020-09-25 02:04:33,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:33,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 02:04:33,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:33,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:33,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:33,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:04:33,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:33,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 02:04:33,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:33,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:04:33,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:33,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:04:33,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:33,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-09-25 02:04:33,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:33,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:33,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:33,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100
[2020-09-25 02:04:33,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:33,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 452
[2020-09-25 02:04:33,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:33,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20
[2020-09-25 02:04:33,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-25 02:04:33,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96
[2020-09-25 02:04:33,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:33,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 02:04:33,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:33,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:34,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:34,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89
[2020-09-25 02:04:34,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:34,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 409
[2020-09-25 02:04:34,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:34,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19
[2020-09-25 02:04:34,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:34,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86
[2020-09-25 02:04:34,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:34,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 02:04:34,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:34,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:34,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:34,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78
[2020-09-25 02:04:34,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:34,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 279
[2020-09-25 02:04:34,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:34,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17
[2020-09-25 02:04:34,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:34,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75
[2020-09-25 02:04:34,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:34,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 02:04:34,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:34,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:34,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:34,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67
[2020-09-25 02:04:34,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:34,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 212
[2020-09-25 02:04:34,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:34,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15
[2020-09-25 02:04:34,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:34,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64
[2020-09-25 02:04:34,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:34,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 02:04:34,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:34,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:34,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:34,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56
[2020-09-25 02:04:34,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:34,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160
[2020-09-25 02:04:34,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:34,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13
[2020-09-25 02:04:34,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:34,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53
[2020-09-25 02:04:34,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:34,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 02:04:34,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:34,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:35,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:35,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45
[2020-09-25 02:04:35,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:35,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112
[2020-09-25 02:04:35,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:35,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11
[2020-09-25 02:04:35,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:35,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42
[2020-09-25 02:04:35,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:35,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 02:04:35,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:35,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:35,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:35,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34
[2020-09-25 02:04:35,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:35,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65
[2020-09-25 02:04:35,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:35,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-09-25 02:04:35,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:35,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31
[2020-09-25 02:04:35,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:35,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 02:04:35,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:35,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:35,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:35,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23
[2020-09-25 02:04:35,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:35,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33
[2020-09-25 02:04:35,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:35,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-25 02:04:35,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:35,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20
[2020-09-25 02:04:35,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:35,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 02:04:35,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:35,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:35,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:35,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 02:04:35,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:35,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-25 02:04:35,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:35,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 02:04:35,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:35,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-25 02:04:35,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:35,336 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 21 proven. 200 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked.
[2020-09-25 02:04:35,337 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1424315658]
[2020-09-25 02:04:35,337 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 02:04:35,337 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15
[2020-09-25 02:04:35,337 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341337764]
[2020-09-25 02:04:35,338 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states
[2020-09-25 02:04:35,338 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 02:04:35,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2020-09-25 02:04:35,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210
[2020-09-25 02:04:35,339 INFO L87 Difference]: Start difference. First operand 60 states and 61 transitions. Second operand 15 states.
[2020-09-25 02:04:35,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 02:04:35,514 INFO L93 Difference]: Finished difference Result 71 states and 72 transitions.
[2020-09-25 02:04:35,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2020-09-25 02:04:35,515 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 90
[2020-09-25 02:04:35,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 02:04:35,517 INFO L225 Difference]: With dead ends: 71
[2020-09-25 02:04:35,517 INFO L226 Difference]: Without dead ends: 65
[2020-09-25 02:04:35,519 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=191, Invalid=361, Unknown=0, NotChecked=0, Total=552
[2020-09-25 02:04:35,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states.
[2020-09-25 02:04:35,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65.
[2020-09-25 02:04:35,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states.
[2020-09-25 02:04:35,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 66 transitions.
[2020-09-25 02:04:35,525 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 66 transitions. Word has length 90
[2020-09-25 02:04:35,525 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 02:04:35,525 INFO L479 AbstractCegarLoop]: Abstraction has 65 states and 66 transitions.
[2020-09-25 02:04:35,525 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states.
[2020-09-25 02:04:35,526 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 66 transitions.
[2020-09-25 02:04:35,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100
[2020-09-25 02:04:35,527 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 02:04:35,527 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 02:04:35,527 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2020-09-25 02:04:35,527 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 02:04:35,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 02:04:35,527 INFO L82 PathProgramCache]: Analyzing trace with hash -928437697, now seen corresponding path program 9 times
[2020-09-25 02:04:35,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 02:04:35,528 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1946441039]
[2020-09-25 02:04:35,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 02:04:35,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:35,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:35,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:40,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:40,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126
[2020-09-25 02:04:40,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 02:04:40,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001
[2020-09-25 02:04:40,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:40,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22
[2020-09-25 02:04:40,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11
[2020-09-25 02:04:40,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62
[2020-09-25 02:04:40,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:40,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 02:04:40,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:40,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:40,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:40,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:04:40,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:40,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 02:04:40,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:40,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:04:40,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:40,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:04:40,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:40,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-09-25 02:04:40,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:40,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:41,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:41,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111
[2020-09-25 02:04:41,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:41,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 502
[2020-09-25 02:04:41,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:41,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22
[2020-09-25 02:04:41,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-25 02:04:41,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107
[2020-09-25 02:04:41,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:41,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 02:04:41,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:41,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:41,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:41,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100
[2020-09-25 02:04:41,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:41,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 441
[2020-09-25 02:04:41,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:41,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21
[2020-09-25 02:04:41,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:41,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97
[2020-09-25 02:04:41,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:41,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 02:04:41,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:41,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:41,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:41,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89
[2020-09-25 02:04:41,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:41,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 354
[2020-09-25 02:04:41,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:41,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19
[2020-09-25 02:04:41,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:41,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86
[2020-09-25 02:04:41,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:41,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 02:04:41,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:41,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:42,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:42,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78
[2020-09-25 02:04:42,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:42,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 278
[2020-09-25 02:04:42,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:42,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17
[2020-09-25 02:04:42,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:42,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75
[2020-09-25 02:04:42,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:42,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 02:04:42,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:42,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:42,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:42,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67
[2020-09-25 02:04:42,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:42,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218
[2020-09-25 02:04:42,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:42,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15
[2020-09-25 02:04:42,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:42,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64
[2020-09-25 02:04:42,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:42,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 02:04:42,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:42,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:42,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:42,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56
[2020-09-25 02:04:42,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:42,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162
[2020-09-25 02:04:42,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:42,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13
[2020-09-25 02:04:42,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:42,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53
[2020-09-25 02:04:42,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:04:42,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 02:04:42,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:42,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:42,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:42,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45
[2020-09-25 02:04:42,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:42,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134
[2020-09-25 02:04:42,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:42,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11
[2020-09-25 02:04:42,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:42,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42
[2020-09-25 02:04:42,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:42,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 02:04:42,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:42,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:42,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:42,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34
[2020-09-25 02:04:42,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:42,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77
[2020-09-25 02:04:43,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:43,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-09-25 02:04:43,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:43,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31
[2020-09-25 02:04:43,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:04:43,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 02:04:43,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:43,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:43,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:43,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23
[2020-09-25 02:04:43,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:43,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37
[2020-09-25 02:04:43,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:43,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-25 02:04:43,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:43,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20
[2020-09-25 02:04:43,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:04:43,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 02:04:43,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:04:43,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:04:43,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:04:43,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 02:04:43,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:04:43,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 02:04:43,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST
[2020-09-25 02:04:43,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 02:04:43,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:04:43,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-25 02:04:43,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:04:43,155 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 9 proven. 259 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked.
[2020-09-25 02:04:43,155 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1946441039]
[2020-09-25 02:04:43,155 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 02:04:43,156 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15
[2020-09-25 02:04:43,156 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790433791]
[2020-09-25 02:04:43,156 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states
[2020-09-25 02:04:43,157 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 02:04:43,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2020-09-25 02:04:43,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210
[2020-09-25 02:04:43,157 INFO L87 Difference]: Start difference. First operand 65 states and 66 transitions. Second operand 15 states.
[2020-09-25 02:04:43,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 02:04:43,351 INFO L93 Difference]: Finished difference Result 76 states and 77 transitions.
[2020-09-25 02:04:43,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2020-09-25 02:04:43,351 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 99
[2020-09-25 02:04:43,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 02:04:43,353 INFO L225 Difference]: With dead ends: 76
[2020-09-25 02:04:43,353 INFO L226 Difference]: Without dead ends: 70
[2020-09-25 02:04:43,354 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=213, Invalid=387, Unknown=0, NotChecked=0, Total=600
[2020-09-25 02:04:43,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states.
[2020-09-25 02:04:43,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70.
[2020-09-25 02:04:43,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states.
[2020-09-25 02:04:43,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 71 transitions.
[2020-09-25 02:04:43,361 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 71 transitions. Word has length 99
[2020-09-25 02:04:43,361 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 02:04:43,361 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 71 transitions.
[2020-09-25 02:04:43,361 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states.
[2020-09-25 02:04:43,362 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 71 transitions.
[2020-09-25 02:04:43,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109
[2020-09-25 02:04:43,363 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 02:04:43,363 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 02:04:43,363 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2020-09-25 02:04:43,363 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 02:04:43,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 02:04:43,363 INFO L82 PathProgramCache]: Analyzing trace with hash -276966773, now seen corresponding path program 10 times
[2020-09-25 02:04:43,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 02:04:43,364 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1752722811]
[2020-09-25 02:04:43,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 02:04:43,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 02:04:43,383 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 02:04:43,383 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 02:04:43,388 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2020-09-25 02:04:43,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:04:43 BoogieIcfgContainer
[2020-09-25 02:04:43,410 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 02:04:43,413 INFO L168 Benchmark]: Toolchain (without parser) took 40101.34 ms. Allocated memory was 139.5 MB in the beginning and 416.3 MB in the end (delta: 276.8 MB). Free memory was 102.7 MB in the beginning and 182.1 MB in the end (delta: -79.3 MB). Peak memory consumption was 197.5 MB. Max. memory is 7.1 GB.
[2020-09-25 02:04:43,414 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-09-25 02:04:43,415 INFO L168 Benchmark]: CACSL2BoogieTranslator took 283.14 ms. Allocated memory is still 139.5 MB. Free memory was 102.1 MB in the beginning and 92.5 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB.
[2020-09-25 02:04:43,415 INFO L168 Benchmark]: Boogie Preprocessor took 31.31 ms. Allocated memory is still 139.5 MB. Free memory was 92.5 MB in the beginning and 91.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB.
[2020-09-25 02:04:43,416 INFO L168 Benchmark]: RCFGBuilder took 358.15 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 91.1 MB in the beginning and 170.1 MB in the end (delta: -79.0 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB.
[2020-09-25 02:04:43,417 INFO L168 Benchmark]: TraceAbstraction took 39406.42 ms. Allocated memory was 202.4 MB in the beginning and 416.3 MB in the end (delta: 213.9 MB). Free memory was 169.5 MB in the beginning and 182.1 MB in the end (delta: -12.6 MB). Peak memory consumption was 201.3 MB. Max. memory is 7.1 GB.
[2020-09-25 02:04:43,421 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.26 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 283.14 ms. Allocated memory is still 139.5 MB. Free memory was 102.1 MB in the beginning and 92.5 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 31.31 ms. Allocated memory is still 139.5 MB. Free memory was 92.5 MB in the beginning and 91.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 358.15 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 91.1 MB in the beginning and 170.1 MB in the end (delta: -79.0 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 39406.42 ms. Allocated memory was 202.4 MB in the beginning and 416.3 MB in the end (delta: 213.9 MB). Free memory was 169.5 MB in the beginning and 182.1 MB in the end (delta: -12.6 MB). Peak memory consumption was 201.3 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- CounterExampleResult [Line: 16]: a call of __VERIFIER_error() is reachable
a call of __VERIFIER_error() is reachable
We found a FailurePath:
[L12] int a = 10;
[L13] int b = 0;
[L14] CALL, EXPR sum(a, b)
[L4] COND FALSE !(n <= 0)
[L7] CALL, EXPR sum(n - 1, m + 1)
[L4] COND FALSE !(n <= 0)
[L7] CALL, EXPR sum(n - 1, m + 1)
[L4] COND FALSE !(n <= 0)
[L7] CALL, EXPR sum(n - 1, m + 1)
[L4] COND FALSE !(n <= 0)
[L7] CALL, EXPR sum(n - 1, m + 1)
[L4] COND FALSE !(n <= 0)
[L7] CALL, EXPR sum(n - 1, m + 1)
[L4] COND FALSE !(n <= 0)
[L7] CALL, EXPR sum(n - 1, m + 1)
[L4] COND FALSE !(n <= 0)
[L7] CALL, EXPR sum(n - 1, m + 1)
[L4] COND FALSE !(n <= 0)
[L7] CALL, EXPR sum(n - 1, m + 1)
[L4] COND FALSE !(n <= 0)
[L7] CALL, EXPR sum(n - 1, m + 1)
[L4] COND FALSE !(n <= 0)
[L7] CALL, EXPR sum(n - 1, m + 1)
[L4] COND TRUE n <= 0
[L5] return m + n;
[L7] RET, EXPR sum(n - 1, m + 1)
[L7] return sum(n - 1, m + 1);
[L7] RET, EXPR sum(n - 1, m + 1)
[L7] return sum(n - 1, m + 1);
[L7] RET, EXPR sum(n - 1, m + 1)
[L7] return sum(n - 1, m + 1);
[L7] RET, EXPR sum(n - 1, m + 1)
[L7] return sum(n - 1, m + 1);
[L7] RET, EXPR sum(n - 1, m + 1)
[L7] return sum(n - 1, m + 1);
[L7] RET, EXPR sum(n - 1, m + 1)
[L7] return sum(n - 1, m + 1);
[L7] RET, EXPR sum(n - 1, m + 1)
[L7] return sum(n - 1, m + 1);
[L7] RET, EXPR sum(n - 1, m + 1)
[L7] return sum(n - 1, m + 1);
[L7] RET, EXPR sum(n - 1, m + 1)
[L7] return sum(n - 1, m + 1);
[L7] RET, EXPR sum(n - 1, m + 1)
[L7] return sum(n - 1, m + 1);
[L14] RET, EXPR sum(a, b)
[L14] int result = sum(a, b);
[L15] COND TRUE result == a + b
[L16] __VERIFIER_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 39.2s, OverallIterations: 11, TraceHistogramMax: 11, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 183 SDtfs, 536 SDslu, 731 SDs, 0 SdLazy, 362 SolverSat, 74 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 270 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=70occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 37.3s InterpolantComputationTime, 693 NumberOfCodeBlocks, 693 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 575 ConstructedInterpolants, 0 QuantifiedInterpolants, 103948 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 438/1305 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
Received shutdown request...