/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=WIDEST --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/id_b2_o3.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 03:11:18,749 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 03:11:18,753 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 03:11:18,779 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 03:11:18,780 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 03:11:18,781 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 03:11:18,782 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
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[2020-09-25 03:11:18,789 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 03:11:18,790 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 03:11:18,791 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 03:11:18,793 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 03:11:18,794 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 03:11:18,798 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 03:11:18,800 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 03:11:18,802 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 03:11:18,805 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 03:11:18,808 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 03:11:18,810 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 03:11:18,811 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 03:11:18,817 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 03:11:18,818 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 03:11:18,818 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 03:11:18,821 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 03:11:18,821 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
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[2020-09-25 03:11:18,825 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 03:11:18,826 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 03:11:18,827 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 03:11:18,828 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 03:11:18,829 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 03:11:18,829 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
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[2020-09-25 03:11:18,831 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2020-09-25 03:11:18,845 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 03:11:18,847 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 03:11:18,897 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 03:11:18,898 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 03:11:18,900 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 03:11:18,900 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 03:11:18,900 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 03:11:18,900 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 03:11:18,901 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 03:11:18,901 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 03:11:18,901 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 03:11:18,901 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 03:11:18,902 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 03:11:18,903 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 03:11:18,903 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 03:11:18,903 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 03:11:18,903 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 03:11:18,904 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 03:11:18,904 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 03:11:18,904 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 03:11:18,904 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 03:11:18,904 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 03:11:18,905 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 03:11:18,905 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 03:11:18,905 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 03:11:18,905 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 03:11:18,905 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 03:11:18,906 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 03:11:18,906 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 03:11:18,906 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 03:11:18,906 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 03:11:18,906 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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;log-additional-information=true;
[2020-09-25 03:11:19,426 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 03:11:19,454 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 03:11:19,459 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 03:11:19,464 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 03:11:19,464 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 03:11:19,465 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_b2_o3.c
[2020-09-25 03:11:19,552 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6d6b9e2b8/6b2ec961920c4d37ae0b55b18f760182/FLAG8728c4ba0
[2020-09-25 03:11:20,090 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 03:11:20,091 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/id_b2_o3.c
[2020-09-25 03:11:20,100 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6d6b9e2b8/6b2ec961920c4d37ae0b55b18f760182/FLAG8728c4ba0
[2020-09-25 03:11:20,422 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6d6b9e2b8/6b2ec961920c4d37ae0b55b18f760182
[2020-09-25 03:11:20,436 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 03:11:20,441 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 03:11:20,442 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 03:11:20,442 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 03:11:20,447 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 03:11:20,448 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:11:20" (1/1) ...
[2020-09-25 03:11:20,453 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70996f09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:20, skipping insertion in model container
[2020-09-25 03:11:20,454 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:11:20" (1/1) ...
[2020-09-25 03:11:20,464 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 03:11:20,495 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 03:11:20,785 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 03:11:20,792 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 03:11:20,818 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 03:11:20,838 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 03:11:20,840 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:20 WrapperNode
[2020-09-25 03:11:20,840 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 03:11:20,841 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 03:11:20,842 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 03:11:20,842 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 03:11:20,860 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:20" (1/1) ...
[2020-09-25 03:11:20,868 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:20" (1/1) ...
[2020-09-25 03:11:20,875 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:20" (1/1) ...
[2020-09-25 03:11:20,876 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:20" (1/1) ...
[2020-09-25 03:11:20,883 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:20" (1/1) ...
[2020-09-25 03:11:20,887 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:20" (1/1) ...
[2020-09-25 03:11:20,889 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:20" (1/1) ...
[2020-09-25 03:11:20,891 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 03:11:20,892 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 03:11:20,892 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 03:11:20,892 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 03:11:20,893 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:20" (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 03:11:21,081 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 03:11:21,081 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 03:11:21,082 INFO  L138     BoogieDeclarations]: Found implementation of procedure id
[2020-09-25 03:11:21,083 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 03:11:21,083 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint
[2020-09-25 03:11:21,083 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 03:11:21,084 INFO  L130     BoogieDeclarations]: Found specification of procedure id
[2020-09-25 03:11:21,084 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 03:11:21,085 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 03:11:21,085 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 03:11:21,303 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 03:11:21,303 INFO  L295             CfgBuilder]: Removed 0 assume(true) statements.
[2020-09-25 03:11:21,308 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:11:21 BoogieIcfgContainer
[2020-09-25 03:11:21,309 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 03:11:21,310 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 03:11:21,311 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 03:11:21,315 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 03:11:21,315 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:11:20" (1/3) ...
[2020-09-25 03:11:21,316 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@479bcdab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:11:21, skipping insertion in model container
[2020-09-25 03:11:21,316 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:20" (2/3) ...
[2020-09-25 03:11:21,322 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@479bcdab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:11:21, skipping insertion in model container
[2020-09-25 03:11:21,322 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:11:21" (3/3) ...
[2020-09-25 03:11:21,325 INFO  L109   eAbstractionObserver]: Analyzing ICFG id_b2_o3.c
[2020-09-25 03:11:21,334 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 03:11:21,344 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 03:11:21,365 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 03:11:21,398 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 03:11:21,398 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 03:11:21,398 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 03:11:21,398 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 03:11:21,399 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 03:11:21,399 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 03:11:21,399 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 03:11:21,399 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 03:11:21,421 INFO  L276                IsEmpty]: Start isEmpty. Operand 27 states.
[2020-09-25 03:11:21,427 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2020-09-25 03:11:21,428 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 03:11:21,429 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 03:11:21,429 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 03:11:21,437 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 03:11:21,438 INFO  L82        PathProgramCache]: Analyzing trace with hash -1920796714, now seen corresponding path program 1 times
[2020-09-25 03:11:21,447 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 03:11:21,448 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1506776592]
[2020-09-25 03:11:21,448 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 03:11:21,578 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:11:21,606 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:11:21,663 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:11:21,663 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 25
[2020-09-25 03:11:21,664 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:11:21,664 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 79
[2020-09-25 03:11:21,666 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:11:21,666 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-25 03:11:21,666 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 18
[2020-09-25 03:11:21,666 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 03:11:21,666 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 03:11:21,737 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 03:11:21,738 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:11:21,744 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:11:21,749 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:11:21,750 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 03:11:21,750 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:11:21,750 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 03:11:21,750 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:11:21,751 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 03:11:21,751 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 03:11:21,751 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 03:11:21,751 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 03:11:21,768 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-09-25 03:11:21,785 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:11:21,803 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:11:21,832 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:11:21,832 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 03:11:21,832 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:11:21,839 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 45
[2020-09-25 03:11:21,839 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:11:21,839 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 3
[2020-09-25 03:11:21,840 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 03:11:21,840 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 03:11:21,840 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 03:11:21,878 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 03:11:21,879 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1506776592]
[2020-09-25 03:11:21,881 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 03:11:21,881 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 03:11:21,883 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493091407]
[2020-09-25 03:11:21,888 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 03:11:21,888 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 03:11:21,901 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 03:11:21,902 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-09-25 03:11:21,905 INFO  L87              Difference]: Start difference. First operand 27 states. Second operand 5 states.
[2020-09-25 03:11:21,992 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 03:11:21,993 INFO  L93              Difference]: Finished difference Result 40 states and 44 transitions.
[2020-09-25 03:11:21,993 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2020-09-25 03:11:21,995 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 16
[2020-09-25 03:11:21,996 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 03:11:22,010 INFO  L225             Difference]: With dead ends: 40
[2020-09-25 03:11:22,010 INFO  L226             Difference]: Without dead ends: 25
[2020-09-25 03:11:22,015 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 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 03:11:22,033 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25 states.
[2020-09-25 03:11:22,065 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25.
[2020-09-25 03:11:22,067 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 25 states.
[2020-09-25 03:11:22,068 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions.
[2020-09-25 03:11:22,071 INFO  L78                 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 16
[2020-09-25 03:11:22,071 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 03:11:22,071 INFO  L479      AbstractCegarLoop]: Abstraction has 25 states and 27 transitions.
[2020-09-25 03:11:22,072 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 03:11:22,072 INFO  L276                IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions.
[2020-09-25 03:11:22,074 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-09-25 03:11:22,074 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 03:11:22,075 INFO  L422         BasicCegarLoop]: trace histogram [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 03:11:22,075 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 03:11:22,076 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 03:11:22,076 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 03:11:22,076 INFO  L82        PathProgramCache]: Analyzing trace with hash -1151880470, now seen corresponding path program 1 times
[2020-09-25 03:11:22,076 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 03:11:22,077 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [788420215]
[2020-09-25 03:11:22,077 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 03:11:22,097 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:11:22,117 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:11:22,236 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:11:22,575 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:11:22,575 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 36
[2020-09-25 03:11:22,575 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 03:11:22,576 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 475
[2020-09-25 03:11:22,577 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:11:22,578 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-25 03:11:22,578 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 23
[2020-09-25 03:11:22,578 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 12
[2020-09-25 03:11:22,578 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 03:11:22,668 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 03:11:22,671 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:11:22,673 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:11:22,674 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:11:22,675 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 03:11:22,676 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:11:22,676 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 03:11:22,677 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:11:22,678 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 03:11:22,678 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 03:11:22,678 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 03:11:22,678 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 03:11:22,680 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-09-25 03:11:22,698 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:11:22,710 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:11:22,856 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:11:22,856 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 22
[2020-09-25 03:11:22,857 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:11:22,857 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 155
[2020-09-25 03:11:22,857 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:11:22,858 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-25 03:11:22,858 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 03:11:22,858 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 17
[2020-09-25 03:11:22,859 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 03:11:22,945 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 03:11:22,950 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:11:22,954 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:11:22,975 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:11:22,975 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 03:11:22,976 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:11:22,976 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 24
[2020-09-25 03:11:22,976 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:11:22,977 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 3
[2020-09-25 03:11:22,977 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 03:11:22,977 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 03:11:22,978 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 03:11:23,018 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-09-25 03:11:23,019 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [788420215]
[2020-09-25 03:11:23,020 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 03:11:23,020 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8
[2020-09-25 03:11:23,020 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860977990]
[2020-09-25 03:11:23,026 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-25 03:11:23,030 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 03:11:23,030 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-25 03:11:23,032 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-25 03:11:23,032 INFO  L87              Difference]: Start difference. First operand 25 states and 27 transitions. Second operand 8 states.
[2020-09-25 03:11:23,177 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 03:11:23,178 INFO  L93              Difference]: Finished difference Result 46 states and 51 transitions.
[2020-09-25 03:11:23,178 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2020-09-25 03:11:23,178 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 25
[2020-09-25 03:11:23,179 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 03:11:23,180 INFO  L225             Difference]: With dead ends: 46
[2020-09-25 03:11:23,180 INFO  L226             Difference]: Without dead ends: 31
[2020-09-25 03:11:23,182 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2020-09-25 03:11:23,182 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 31 states.
[2020-09-25 03:11:23,188 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31.
[2020-09-25 03:11:23,188 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 31 states.
[2020-09-25 03:11:23,190 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions.
[2020-09-25 03:11:23,190 INFO  L78                 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 25
[2020-09-25 03:11:23,191 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 03:11:23,191 INFO  L479      AbstractCegarLoop]: Abstraction has 31 states and 33 transitions.
[2020-09-25 03:11:23,191 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-25 03:11:23,191 INFO  L276                IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions.
[2020-09-25 03:11:23,192 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 35
[2020-09-25 03:11:23,193 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 03:11:23,193 INFO  L422         BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 03:11:23,193 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 03:11:23,193 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 03:11:23,194 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 03:11:23,194 INFO  L82        PathProgramCache]: Analyzing trace with hash 860037162, now seen corresponding path program 2 times
[2020-09-25 03:11:23,194 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 03:11:23,195 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [824210414]
[2020-09-25 03:11:23,195 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 03:11:23,208 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:11:23,219 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:11:23,394 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:11:23,586 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:11:23,587 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 47
[2020-09-25 03:11:23,587 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 03:11:23,587 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 377
[2020-09-25 03:11:23,588 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:11:23,588 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 10
[2020-09-25 03:11:23,588 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 28
[2020-09-25 03:11:23,588 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 18
[2020-09-25 03:11:23,589 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 03:11:23,654 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 03:11:23,656 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:11:23,657 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:11:23,658 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:11:23,659 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 03:11:23,659 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:11:23,659 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 03:11:23,660 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:11:23,660 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 03:11:23,660 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 03:11:23,660 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 03:11:23,660 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 03:11:23,663 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-09-25 03:11:23,670 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:11:23,682 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:11:23,855 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:11:23,856 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 33
[2020-09-25 03:11:23,856 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:11:23,856 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 182
[2020-09-25 03:11:23,857 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:11:23,857 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-09-25 03:11:23,857 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 03:11:23,857 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 28
[2020-09-25 03:11:23,857 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 03:11:23,912 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 03:11:23,918 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:11:23,924 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:11:23,972 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:11:23,972 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 22
[2020-09-25 03:11:23,972 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:11:23,973 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 52
[2020-09-25 03:11:23,973 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:11:23,973 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-25 03:11:23,973 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 03:11:23,974 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 17
[2020-09-25 03:11:23,974 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 03:11:24,031 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 03:11:24,034 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:11:24,037 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:11:24,049 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:11:24,050 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 03:11:24,050 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:11:24,050 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 15
[2020-09-25 03:11:24,051 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:11:24,051 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 3
[2020-09-25 03:11:24,051 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 03:11:24,052 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 03:11:24,052 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 03:11:24,082 INFO  L134       CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2020-09-25 03:11:24,083 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [824210414]
[2020-09-25 03:11:24,083 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 03:11:24,083 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11
[2020-09-25 03:11:24,084 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917191299]
[2020-09-25 03:11:24,084 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 11 states
[2020-09-25 03:11:24,085 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 03:11:24,085 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2020-09-25 03:11:24,085 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110
[2020-09-25 03:11:24,086 INFO  L87              Difference]: Start difference. First operand 31 states and 33 transitions. Second operand 11 states.
[2020-09-25 03:11:24,294 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 03:11:24,294 INFO  L93              Difference]: Finished difference Result 54 states and 60 transitions.
[2020-09-25 03:11:24,295 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2020-09-25 03:11:24,295 INFO  L78                 Accepts]: Start accepts. Automaton has 11 states. Word has length 34
[2020-09-25 03:11:24,296 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 03:11:24,297 INFO  L225             Difference]: With dead ends: 54
[2020-09-25 03:11:24,298 INFO  L226             Difference]: Without dead ends: 39
[2020-09-25 03:11:24,299 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240
[2020-09-25 03:11:24,300 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 39 states.
[2020-09-25 03:11:24,307 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37.
[2020-09-25 03:11:24,307 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 37 states.
[2020-09-25 03:11:24,308 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions.
[2020-09-25 03:11:24,309 INFO  L78                 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 34
[2020-09-25 03:11:24,309 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 03:11:24,310 INFO  L479      AbstractCegarLoop]: Abstraction has 37 states and 39 transitions.
[2020-09-25 03:11:24,310 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 11 states.
[2020-09-25 03:11:24,310 INFO  L276                IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions.
[2020-09-25 03:11:24,312 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 44
[2020-09-25 03:11:24,312 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 03:11:24,312 INFO  L422         BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 03:11:24,312 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 03:11:24,313 INFO  L427      AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 03:11:24,313 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 03:11:24,313 INFO  L82        PathProgramCache]: Analyzing trace with hash -1953505858, now seen corresponding path program 3 times
[2020-09-25 03:11:24,314 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 03:11:24,314 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [664839724]
[2020-09-25 03:11:24,314 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 03:11:24,327 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:11:24,341 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:11:24,521 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:11:25,153 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:11:25,153 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 58
[2020-09-25 03:11:25,153 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 03:11:25,154 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 823
[2020-09-25 03:11:25,154 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:11:25,154 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 10
[2020-09-25 03:11:25,154 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 33
[2020-09-25 03:11:25,154 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 18
[2020-09-25 03:11:25,155 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 03:11:25,168 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 03:11:25,169 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:11:25,170 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:11:25,171 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:11:25,172 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 03:11:25,172 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:11:25,172 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 03:11:25,172 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:11:25,172 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 03:11:25,173 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 03:11:25,173 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 03:11:25,173 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 03:11:25,175 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-09-25 03:11:25,183 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:11:25,193 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:11:25,405 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:11:25,405 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 44
[2020-09-25 03:11:25,405 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:11:25,405 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 220
[2020-09-25 03:11:25,406 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:11:25,406 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 10
[2020-09-25 03:11:25,406 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 20
[2020-09-25 03:11:25,406 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 18
[2020-09-25 03:11:25,407 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 03:11:25,479 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 03:11:25,488 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:11:25,498 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:11:25,651 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:11:25,651 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 33
[2020-09-25 03:11:25,651 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:11:25,652 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 161
[2020-09-25 03:11:25,652 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:11:25,652 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-09-25 03:11:25,652 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 03:11:25,653 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 28
[2020-09-25 03:11:25,653 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 03:11:25,705 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 03:11:25,709 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:11:25,713 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:11:25,759 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:11:25,759 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 22
[2020-09-25 03:11:25,760 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:11:25,760 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 49
[2020-09-25 03:11:25,760 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:11:25,760 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-25 03:11:25,761 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 03:11:25,761 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 17
[2020-09-25 03:11:25,761 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 03:11:25,815 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 03:11:25,818 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:11:25,820 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:11:25,829 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:11:25,830 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 03:11:25,830 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:11:25,830 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-25 03:11:25,831 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:11:25,831 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 3
[2020-09-25 03:11:25,831 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 03:11:25,831 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 03:11:25,832 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 03:11:25,857 INFO  L134       CoverageAnalysis]: Checked inductivity of 39 backedges. 8 proven. 16 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2020-09-25 03:11:25,857 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [664839724]
[2020-09-25 03:11:25,857 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 03:11:25,858 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11
[2020-09-25 03:11:25,858 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639781898]
[2020-09-25 03:11:25,859 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 11 states
[2020-09-25 03:11:25,859 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 03:11:25,860 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2020-09-25 03:11:25,860 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110
[2020-09-25 03:11:25,860 INFO  L87              Difference]: Start difference. First operand 37 states and 39 transitions. Second operand 11 states.
[2020-09-25 03:11:26,046 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 03:11:26,046 INFO  L93              Difference]: Finished difference Result 45 states and 48 transitions.
[2020-09-25 03:11:26,047 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2020-09-25 03:11:26,047 INFO  L78                 Accepts]: Start accepts. Automaton has 11 states. Word has length 43
[2020-09-25 03:11:26,048 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 03:11:26,048 INFO  L225             Difference]: With dead ends: 45
[2020-09-25 03:11:26,048 INFO  L226             Difference]: Without dead ends: 0
[2020-09-25 03:11:26,049 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272
[2020-09-25 03:11:26,049 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-09-25 03:11:26,050 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-09-25 03:11:26,050 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-09-25 03:11:26,050 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-09-25 03:11:26,050 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43
[2020-09-25 03:11:26,051 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 03:11:26,051 INFO  L479      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-09-25 03:11:26,051 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 11 states.
[2020-09-25 03:11:26,051 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-09-25 03:11:26,051 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2020-09-25 03:11:26,052 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-09-25 03:11:26,054 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2020-09-25 03:11:26,080 INFO  L271        CegarLoopResult]: At program point  ULTIMATE.initFINAL(line -1)  the Hoare annotation is:  true
[2020-09-25 03:11:26,080 INFO  L268        CegarLoopResult]: For program point  ULTIMATE.initEXIT(line -1)  no Hoare annotation was computed.
[2020-09-25 03:11:26,080 INFO  L268        CegarLoopResult]: For program point  ULTIMATE.startEXIT(line -1)  no Hoare annotation was computed.
[2020-09-25 03:11:26,081 INFO  L271        CegarLoopResult]: At program point  L-1(line -1)  the Hoare annotation is:  true
[2020-09-25 03:11:26,081 INFO  L271        CegarLoopResult]: At program point  ULTIMATE.startENTRY(line -1)  the Hoare annotation is:  true
[2020-09-25 03:11:26,081 INFO  L268        CegarLoopResult]: For program point  ULTIMATE.startFINAL(line -1)  no Hoare annotation was computed.
[2020-09-25 03:11:26,081 INFO  L268        CegarLoopResult]: For program point  mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15)  no Hoare annotation was computed.
[2020-09-25 03:11:26,081 INFO  L271        CegarLoopResult]: At program point  mainENTRY(lines 11 17)  the Hoare annotation is:  true
[2020-09-25 03:11:26,082 INFO  L268        CegarLoopResult]: For program point  mainEXIT(lines 11 17)  no Hoare annotation was computed.
[2020-09-25 03:11:26,082 INFO  L268        CegarLoopResult]: For program point  L15(line 15)  no Hoare annotation was computed.
[2020-09-25 03:11:26,082 INFO  L268        CegarLoopResult]: For program point  L14(lines 14 16)  no Hoare annotation was computed.
[2020-09-25 03:11:26,082 INFO  L271        CegarLoopResult]: At program point  L13(line 13)  the Hoare annotation is:  true
[2020-09-25 03:11:26,082 INFO  L268        CegarLoopResult]: For program point  L12(line 12)  no Hoare annotation was computed.
[2020-09-25 03:11:26,082 INFO  L268        CegarLoopResult]: For program point  L13-1(line 13)  no Hoare annotation was computed.
[2020-09-25 03:11:26,082 INFO  L268        CegarLoopResult]: For program point  L14-2(lines 11 17)  no Hoare annotation was computed.
[2020-09-25 03:11:26,083 INFO  L268        CegarLoopResult]: For program point  L13-2(line 13)  no Hoare annotation was computed.
[2020-09-25 03:11:26,083 INFO  L268        CegarLoopResult]: For program point  idFINAL(lines 4 9)  no Hoare annotation was computed.
[2020-09-25 03:11:26,083 INFO  L268        CegarLoopResult]: For program point  idEXIT(lines 4 9)  no Hoare annotation was computed.
[2020-09-25 03:11:26,083 INFO  L271        CegarLoopResult]: At program point  idENTRY(lines 4 9)  the Hoare annotation is:  true
[2020-09-25 03:11:26,083 INFO  L268        CegarLoopResult]: For program point  L8(line 8)  no Hoare annotation was computed.
[2020-09-25 03:11:26,083 INFO  L268        CegarLoopResult]: For program point  L7(line 7)  no Hoare annotation was computed.
[2020-09-25 03:11:26,084 INFO  L271        CegarLoopResult]: At program point  L6(line 6)  the Hoare annotation is:  true
[2020-09-25 03:11:26,084 INFO  L268        CegarLoopResult]: For program point  L7-1(line 7)  no Hoare annotation was computed.
[2020-09-25 03:11:26,084 INFO  L268        CegarLoopResult]: For program point  L5(line 5)  no Hoare annotation was computed.
[2020-09-25 03:11:26,084 INFO  L268        CegarLoopResult]: For program point  L6-1(line 6)  no Hoare annotation was computed.
[2020-09-25 03:11:26,084 INFO  L268        CegarLoopResult]: For program point  L5-1(line 5)  no Hoare annotation was computed.
[2020-09-25 03:11:26,084 INFO  L268        CegarLoopResult]: For program point  L6-2(line 6)  no Hoare annotation was computed.
[2020-09-25 03:11:26,092 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 03:11:26 BoogieIcfgContainer
[2020-09-25 03:11:26,092 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 03:11:26,096 INFO  L168              Benchmark]: Toolchain (without parser) took 5656.61 ms. Allocated memory was 146.8 MB in the beginning and 246.9 MB in the end (delta: 100.1 MB). Free memory was 103.7 MB in the beginning and 143.9 MB in the end (delta: -40.2 MB). Peak memory consumption was 59.9 MB. Max. memory is 7.1 GB.
[2020-09-25 03:11:26,097 INFO  L168              Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 146.8 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB.
[2020-09-25 03:11:26,098 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 398.70 ms. Allocated memory is still 146.8 MB. Free memory was 103.0 MB in the beginning and 93.4 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB.
[2020-09-25 03:11:26,099 INFO  L168              Benchmark]: Boogie Preprocessor took 49.80 ms. Allocated memory is still 146.8 MB. Free memory was 93.4 MB in the beginning and 92.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB.
[2020-09-25 03:11:26,100 INFO  L168              Benchmark]: RCFGBuilder took 417.44 ms. Allocated memory was 146.8 MB in the beginning and 202.9 MB in the end (delta: 56.1 MB). Free memory was 92.0 MB in the beginning and 170.6 MB in the end (delta: -78.5 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB.
[2020-09-25 03:11:26,101 INFO  L168              Benchmark]: TraceAbstraction took 4781.96 ms. Allocated memory was 202.9 MB in the beginning and 246.9 MB in the end (delta: 44.0 MB). Free memory was 169.9 MB in the beginning and 143.9 MB in the end (delta: 26.0 MB). Peak memory consumption was 70.0 MB. Max. memory is 7.1 GB.
[2020-09-25 03:11:26,105 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.30 ms. Allocated memory is still 146.8 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 398.70 ms. Allocated memory is still 146.8 MB. Free memory was 103.0 MB in the beginning and 93.4 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 49.80 ms. Allocated memory is still 146.8 MB. Free memory was 93.4 MB in the beginning and 92.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 417.44 ms. Allocated memory was 146.8 MB in the beginning and 202.9 MB in the end (delta: 56.1 MB). Free memory was 92.0 MB in the beginning and 170.6 MB in the end (delta: -78.5 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 4781.96 ms. Allocated memory was 202.9 MB in the beginning and 246.9 MB in the end (delta: 44.0 MB). Free memory was 169.9 MB in the beginning and 143.9 MB in the end (delta: 26.0 MB). Peak memory consumption was 70.0 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - PositiveResult [Line: 15]: call of __VERIFIER_error() unreachable
    For all program executions holds that call of __VERIFIER_error() unreachable at this location
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 4 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.6s, OverallIterations: 4, TraceHistogramMax: 4, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 100 SDtfs, 24 SDslu, 587 SDs, 0 SdLazy, 212 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 79 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 7 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 118 NumberOfCodeBlocks, 118 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 114 ConstructedInterpolants, 0 QuantifiedInterpolants, 13446 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 32/60 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 correct!
Received shutdown request...