/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 SequenceOfStatements --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=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/sum_20x0-1.c
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This is Ultimate 0.1.25-adbd35c
[2020-10-12 18:26:20,995 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-10-12 18:26:20,998 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-10-12 18:26:21,021 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-10-12 18:26:21,022 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-10-12 18:26:21,023 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-10-12 18:26:21,024 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-10-12 18:26:21,026 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-10-12 18:26:21,027 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-10-12 18:26:21,028 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-10-12 18:26:21,029 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-10-12 18:26:21,030 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-10-12 18:26:21,030 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-10-12 18:26:21,031 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-10-12 18:26:21,032 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-10-12 18:26:21,033 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-10-12 18:26:21,034 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-10-12 18:26:21,035 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-10-12 18:26:21,036 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-10-12 18:26:21,038 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-10-12 18:26:21,040 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-10-12 18:26:21,041 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-10-12 18:26:21,042 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-10-12 18:26:21,043 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-10-12 18:26:21,045 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-10-12 18:26:21,045 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-10-12 18:26:21,046 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-10-12 18:26:21,046 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-10-12 18:26:21,047 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-10-12 18:26:21,048 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-10-12 18:26:21,048 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-10-12 18:26:21,049 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-10-12 18:26:21,049 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-10-12 18:26:21,050 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-10-12 18:26:21,051 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-10-12 18:26:21,051 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-10-12 18:26:21,052 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-10-12 18:26:21,052 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-10-12 18:26:21,052 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-10-12 18:26:21,053 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-10-12 18:26:21,054 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-10-12 18:26:21,055 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
[2020-10-12 18:26:21,090 INFO L113 SettingsManager]: Loading preferences was successful
[2020-10-12 18:26:21,092 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-10-12 18:26:21,093 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-10-12 18:26:21,094 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-10-12 18:26:21,094 INFO L138 SettingsManager]: * Use SBE=true
[2020-10-12 18:26:21,094 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-10-12 18:26:21,094 INFO L138 SettingsManager]: * sizeof long=4
[2020-10-12 18:26:21,094 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-10-12 18:26:21,095 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-10-12 18:26:21,095 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-10-12 18:26:21,095 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-10-12 18:26:21,095 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-10-12 18:26:21,095 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-10-12 18:26:21,096 INFO L138 SettingsManager]: * sizeof long double=12
[2020-10-12 18:26:21,096 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-10-12 18:26:21,096 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-10-12 18:26:21,101 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-10-12 18:26:21,101 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-10-12 18:26:21,102 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-10-12 18:26:21,102 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-10-12 18:26:21,102 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-10-12 18:26:21,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-10-12 18:26:21,102 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-10-12 18:26:21,103 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-10-12 18:26:21,103 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-10-12 18:26:21,104 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-10-12 18:26:21,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-10-12 18:26:21,104 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-10-12 18:26:21,105 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-10-12 18:26:21,105 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 -> SequenceOfStatements
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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=true;
[2020-10-12 18:26:21,406 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-10-12 18:26:21,425 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-10-12 18:26:21,429 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-10-12 18:26:21,431 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-10-12 18:26:21,432 INFO L275 PluginConnector]: CDTParser initialized
[2020-10-12 18:26:21,433 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/sum_20x0-1.c
[2020-10-12 18:26:21,490 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2e611ebf0/197f0196ce41405daf5cffa9fa2194f8/FLAGa47744510
[2020-10-12 18:26:21,881 INFO L306 CDTParser]: Found 1 translation units.
[2020-10-12 18:26:21,882 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/sum_20x0-1.c
[2020-10-12 18:26:21,888 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2e611ebf0/197f0196ce41405daf5cffa9fa2194f8/FLAGa47744510
[2020-10-12 18:26:22,237 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2e611ebf0/197f0196ce41405daf5cffa9fa2194f8
[2020-10-12 18:26:22,247 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-10-12 18:26:22,249 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-10-12 18:26:22,252 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-10-12 18:26:22,252 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-10-12 18:26:22,255 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-10-12 18:26:22,256 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:26:22" (1/1) ...
[2020-10-12 18:26:22,259 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d2a8928 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:26:22, skipping insertion in model container
[2020-10-12 18:26:22,259 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:26:22" (1/1) ...
[2020-10-12 18:26:22,267 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-10-12 18:26:22,285 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-10-12 18:26:22,469 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-10-12 18:26:22,476 INFO L203 MainTranslator]: Completed pre-run
[2020-10-12 18:26:22,499 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-10-12 18:26:22,515 INFO L208 MainTranslator]: Completed translation
[2020-10-12 18:26:22,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:26:22 WrapperNode
[2020-10-12 18:26:22,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-10-12 18:26:22,518 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-10-12 18:26:22,518 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-10-12 18:26:22,518 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-10-12 18:26:22,532 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:26:22" (1/1) ...
[2020-10-12 18:26:22,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:26:22" (1/1) ...
[2020-10-12 18:26:22,539 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:26:22" (1/1) ...
[2020-10-12 18:26:22,539 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:26:22" (1/1) ...
[2020-10-12 18:26:22,543 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:26:22" (1/1) ...
[2020-10-12 18:26:22,546 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:26:22" (1/1) ...
[2020-10-12 18:26:22,547 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:26:22" (1/1) ...
[2020-10-12 18:26:22,549 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-10-12 18:26:22,549 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-10-12 18:26:22,549 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-10-12 18:26:22,549 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-10-12 18:26:22,550 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:26:22" (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
[2020-10-12 18:26:22,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-10-12 18:26:22,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-10-12 18:26:22,709 INFO L138 BoogieDeclarations]: Found implementation of procedure sum
[2020-10-12 18:26:22,709 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-10-12 18:26:22,709 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-10-12 18:26:22,709 INFO L130 BoogieDeclarations]: Found specification of procedure sum
[2020-10-12 18:26:22,709 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-10-12 18:26:22,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-10-12 18:26:22,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-10-12 18:26:22,861 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-10-12 18:26:22,862 INFO L295 CfgBuilder]: Removed 0 assume(true) statements.
[2020-10-12 18:26:22,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:26:22 BoogieIcfgContainer
[2020-10-12 18:26:22,866 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-10-12 18:26:22,867 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-10-12 18:26:22,868 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-10-12 18:26:22,871 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-10-12 18:26:22,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 06:26:22" (1/3) ...
[2020-10-12 18:26:22,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d6f16cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:26:22, skipping insertion in model container
[2020-10-12 18:26:22,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:26:22" (2/3) ...
[2020-10-12 18:26:22,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d6f16cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:26:22, skipping insertion in model container
[2020-10-12 18:26:22,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:26:22" (3/3) ...
[2020-10-12 18:26:22,874 INFO L109 eAbstractionObserver]: Analyzing ICFG sum_20x0-1.c
[2020-10-12 18:26:22,884 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-10-12 18:26:22,891 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-10-12 18:26:22,904 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-10-12 18:26:22,927 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-10-12 18:26:22,927 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-10-12 18:26:22,928 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-10-12 18:26:22,928 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-10-12 18:26:22,928 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-10-12 18:26:22,928 INFO L380 AbstractCegarLoop]: Difference is false
[2020-10-12 18:26:22,928 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-10-12 18:26:22,929 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-10-12 18:26:22,946 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states.
[2020-10-12 18:26:22,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2020-10-12 18:26:22,952 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-12 18:26:22,953 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-12 18:26:22,954 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-12 18:26:22,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-12 18:26:22,960 INFO L82 PathProgramCache]: Analyzing trace with hash 2001781660, now seen corresponding path program 1 times
[2020-10-12 18:26:22,967 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-12 18:26:22,968 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2108772072]
[2020-10-12 18:26:22,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-12 18:26:23,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:23,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:23,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:23,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21
[2020-10-12 18:26:23,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:23,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107
[2020-10-12 18:26:23,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:23,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-10-12 18:26:23,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10
[2020-10-12 18:26:23,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-10-12 18:26:23,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-10-12 18:26:23,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-12 18:26:23,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:23,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:23,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:23,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 18:26:23,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:23,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-12 18:26:23,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:23,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-12 18:26:23,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:23,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-12 18:26:23,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:23,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2020-10-12 18:26:23,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:23,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:23,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:23,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-10-12 18:26:23,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:23,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42
[2020-10-12 18:26:23,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:23,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-10-12 18:26:23,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-10-12 18:26:23,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-10-12 18:26:23,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:23,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-12 18:26:23,321 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2108772072]
[2020-10-12 18:26:23,323 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-12 18:26:23,324 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-10-12 18:26:23,325 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368645398]
[2020-10-12 18:26:23,330 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-10-12 18:26:23,331 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-12 18:26:23,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-10-12 18:26:23,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-10-12 18:26:23,344 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 5 states.
[2020-10-12 18:26:23,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-12 18:26:23,424 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions.
[2020-10-12 18:26:23,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-10-12 18:26:23,427 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13
[2020-10-12 18:26:23,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-12 18:26:23,441 INFO L225 Difference]: With dead ends: 30
[2020-10-12 18:26:23,442 INFO L226 Difference]: Without dead ends: 18
[2020-10-12 18:26:23,454 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
[2020-10-12 18:26:23,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states.
[2020-10-12 18:26:23,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18.
[2020-10-12 18:26:23,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states.
[2020-10-12 18:26:23,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions.
[2020-10-12 18:26:23,510 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13
[2020-10-12 18:26:23,510 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-12 18:26:23,510 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions.
[2020-10-12 18:26:23,511 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-10-12 18:26:23,511 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions.
[2020-10-12 18:26:23,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2020-10-12 18:26:23,513 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-12 18:26:23,513 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-12 18:26:23,513 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-10-12 18:26:23,514 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-12 18:26:23,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-12 18:26:23,514 INFO L82 PathProgramCache]: Analyzing trace with hash -118151420, now seen corresponding path program 1 times
[2020-10-12 18:26:23,515 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-12 18:26:23,515 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [618553169]
[2020-10-12 18:26:23,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-12 18:26:23,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:23,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:23,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:23,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29
[2020-10-12 18:26:23,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:23,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179
[2020-10-12 18:26:23,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:23,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-10-12 18:26:23,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10
[2020-10-12 18:26:23,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11
[2020-10-12 18:26:23,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8
[2020-10-12 18:26:23,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-12 18:26:23,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:23,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:23,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:23,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 18:26:23,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:23,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-12 18:26:23,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:23,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-12 18:26:23,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:23,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-12 18:26:23,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:23,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2020-10-12 18:26:23,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:23,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:23,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:23,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17
[2020-10-12 18:26:23,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:23,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64
[2020-10-12 18:26:23,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:23,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-10-12 18:26:23,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-10-12 18:26:23,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14
[2020-10-12 18:26:23,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:23,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:23,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:23,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:23,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:23,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-10-12 18:26:23,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:23,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20
[2020-10-12 18:26:23,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:23,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-10-12 18:26:23,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:23,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-10-12 18:26:23,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:23,914 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-10-12 18:26:23,915 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [618553169]
[2020-10-12 18:26:23,915 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-10-12 18:26:23,916 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6
[2020-10-12 18:26:23,916 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873885684]
[2020-10-12 18:26:23,918 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-10-12 18:26:23,918 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-12 18:26:23,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-10-12 18:26:23,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2020-10-12 18:26:23,919 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 6 states.
[2020-10-12 18:26:23,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-12 18:26:23,973 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions.
[2020-10-12 18:26:23,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-10-12 18:26:23,973 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19
[2020-10-12 18:26:23,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-12 18:26:23,975 INFO L225 Difference]: With dead ends: 25
[2020-10-12 18:26:23,975 INFO L226 Difference]: Without dead ends: 21
[2020-10-12 18:26:23,976 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56
[2020-10-12 18:26:23,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states.
[2020-10-12 18:26:23,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21.
[2020-10-12 18:26:23,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states.
[2020-10-12 18:26:23,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions.
[2020-10-12 18:26:23,983 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 19
[2020-10-12 18:26:23,984 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-12 18:26:23,984 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions.
[2020-10-12 18:26:23,984 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-10-12 18:26:23,984 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions.
[2020-10-12 18:26:23,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-10-12 18:26:23,985 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-12 18:26:23,986 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-12 18:26:23,986 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-10-12 18:26:23,986 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-12 18:26:23,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-12 18:26:23,987 INFO L82 PathProgramCache]: Analyzing trace with hash 764931548, now seen corresponding path program 2 times
[2020-10-12 18:26:23,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-12 18:26:23,987 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1164947252]
[2020-10-12 18:26:23,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-12 18:26:23,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:24,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:24,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:24,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37
[2020-10-12 18:26:24,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:24,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133
[2020-10-12 18:26:24,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:24,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-10-12 18:26:24,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10
[2020-10-12 18:26:24,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16
[2020-10-12 18:26:24,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:24,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-12 18:26:24,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:24,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:24,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:24,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 18:26:24,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:24,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-12 18:26:24,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:24,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-12 18:26:24,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:24,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-12 18:26:24,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:24,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2020-10-12 18:26:24,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:24,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:24,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:24,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25
[2020-10-12 18:26:24,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:24,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90
[2020-10-12 18:26:24,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:24,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-10-12 18:26:24,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-10-12 18:26:24,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22
[2020-10-12 18:26:24,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:24,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:24,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:24,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:24,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:24,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17
[2020-10-12 18:26:24,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:24,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68
[2020-10-12 18:26:24,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:24,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-10-12 18:26:24,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:24,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15
[2020-10-12 18:26:24,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:24,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:24,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:24,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:24,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:24,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-10-12 18:26:24,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:24,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14
[2020-10-12 18:26:24,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:24,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-10-12 18:26:24,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:24,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-10-12 18:26:24,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5
[2020-10-12 18:26:24,475 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2020-10-12 18:26:24,476 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1164947252]
[2020-10-12 18:26:24,476 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-10-12 18:26:24,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8
[2020-10-12 18:26:24,477 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963763172]
[2020-10-12 18:26:24,477 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-10-12 18:26:24,478 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-12 18:26:24,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-10-12 18:26:24,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2020-10-12 18:26:24,480 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 8 states.
[2020-10-12 18:26:24,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-12 18:26:24,564 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions.
[2020-10-12 18:26:24,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2020-10-12 18:26:24,568 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25
[2020-10-12 18:26:24,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-12 18:26:24,569 INFO L225 Difference]: With dead ends: 28
[2020-10-12 18:26:24,569 INFO L226 Difference]: Without dead ends: 24
[2020-10-12 18:26:24,570 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
[2020-10-12 18:26:24,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states.
[2020-10-12 18:26:24,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24.
[2020-10-12 18:26:24,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states.
[2020-10-12 18:26:24,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions.
[2020-10-12 18:26:24,584 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 25
[2020-10-12 18:26:24,584 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-12 18:26:24,584 INFO L479 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions.
[2020-10-12 18:26:24,585 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-10-12 18:26:24,585 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions.
[2020-10-12 18:26:24,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2020-10-12 18:26:24,586 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-12 18:26:24,586 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-12 18:26:24,586 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-10-12 18:26:24,587 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-12 18:26:24,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-12 18:26:24,588 INFO L82 PathProgramCache]: Analyzing trace with hash 601942852, now seen corresponding path program 3 times
[2020-10-12 18:26:24,588 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-12 18:26:24,588 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [927402217]
[2020-10-12 18:26:24,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-12 18:26:24,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:24,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:24,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:24,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45
[2020-10-12 18:26:24,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:24,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115
[2020-10-12 18:26:24,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:24,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10
[2020-10-12 18:26:24,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10
[2020-10-12 18:26:24,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21
[2020-10-12 18:26:24,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:24,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-12 18:26:24,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:24,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:24,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:24,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 18:26:24,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:24,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-12 18:26:24,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:24,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-12 18:26:24,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:24,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-12 18:26:24,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:24,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2020-10-12 18:26:24,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:24,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:24,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:24,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33
[2020-10-12 18:26:24,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:24,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108
[2020-10-12 18:26:24,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:24,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10
[2020-10-12 18:26:24,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-10-12 18:26:24,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30
[2020-10-12 18:26:24,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:24,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:24,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:24,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:24,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:24,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25
[2020-10-12 18:26:24,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:24,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60
[2020-10-12 18:26:24,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:24,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-10-12 18:26:24,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:24,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23
[2020-10-12 18:26:24,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:24,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:24,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:25,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:25,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:25,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17
[2020-10-12 18:26:25,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:25,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46
[2020-10-12 18:26:25,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:25,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-10-12 18:26:25,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:25,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15
[2020-10-12 18:26:25,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:25,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:25,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:25,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:25,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:25,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-10-12 18:26:25,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:25,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-10-12 18:26:25,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:25,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-10-12 18:26:25,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:25,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-10-12 18:26:25,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:25,112 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 15 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2020-10-12 18:26:25,114 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [927402217]
[2020-10-12 18:26:25,114 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-10-12 18:26:25,114 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9
[2020-10-12 18:26:25,115 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022005525]
[2020-10-12 18:26:25,116 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-10-12 18:26:25,116 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-12 18:26:25,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-10-12 18:26:25,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72
[2020-10-12 18:26:25,117 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 9 states.
[2020-10-12 18:26:25,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-12 18:26:25,222 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions.
[2020-10-12 18:26:25,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2020-10-12 18:26:25,222 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 31
[2020-10-12 18:26:25,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-12 18:26:25,224 INFO L225 Difference]: With dead ends: 31
[2020-10-12 18:26:25,224 INFO L226 Difference]: Without dead ends: 27
[2020-10-12 18:26:25,224 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
[2020-10-12 18:26:25,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states.
[2020-10-12 18:26:25,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27.
[2020-10-12 18:26:25,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states.
[2020-10-12 18:26:25,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions.
[2020-10-12 18:26:25,231 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 31
[2020-10-12 18:26:25,231 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-12 18:26:25,232 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions.
[2020-10-12 18:26:25,232 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-10-12 18:26:25,232 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions.
[2020-10-12 18:26:25,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38
[2020-10-12 18:26:25,233 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-12 18:26:25,233 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-12 18:26:25,234 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-10-12 18:26:25,234 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-12 18:26:25,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-12 18:26:25,234 INFO L82 PathProgramCache]: Analyzing trace with hash -183109604, now seen corresponding path program 4 times
[2020-10-12 18:26:25,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-12 18:26:25,235 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1295072463]
[2020-10-12 18:26:25,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-12 18:26:25,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:25,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:25,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:25,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53
[2020-10-12 18:26:25,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:25,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107
[2020-10-12 18:26:25,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:25,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12
[2020-10-12 18:26:25,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10
[2020-10-12 18:26:25,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26
[2020-10-12 18:26:25,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:25,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-12 18:26:25,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:25,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:25,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:25,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 18:26:25,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:25,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-12 18:26:25,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:25,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-12 18:26:25,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:25,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-12 18:26:25,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:25,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2020-10-12 18:26:25,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:25,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:25,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:25,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41
[2020-10-12 18:26:25,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:25,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84
[2020-10-12 18:26:25,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:25,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12
[2020-10-12 18:26:25,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-10-12 18:26:25,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38
[2020-10-12 18:26:25,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:25,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:25,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:25,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:25,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:25,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33
[2020-10-12 18:26:25,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:25,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67
[2020-10-12 18:26:25,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:25,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11
[2020-10-12 18:26:25,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:25,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31
[2020-10-12 18:26:25,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:25,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:25,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:25,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:25,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:25,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25
[2020-10-12 18:26:25,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:25,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45
[2020-10-12 18:26:25,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:25,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-10-12 18:26:25,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:25,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23
[2020-10-12 18:26:25,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:25,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:25,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:25,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:25,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:25,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17
[2020-10-12 18:26:25,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:25,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31
[2020-10-12 18:26:25,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:25,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-10-12 18:26:25,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:25,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15
[2020-10-12 18:26:25,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:25,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:25,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:25,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:25,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:25,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-10-12 18:26:25,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:25,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-10-12 18:26:25,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:25,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-10-12 18:26:25,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:25,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-10-12 18:26:25,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:25,738 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 34 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked.
[2020-10-12 18:26:25,739 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1295072463]
[2020-10-12 18:26:25,739 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-10-12 18:26:25,739 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10
[2020-10-12 18:26:25,740 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833924552]
[2020-10-12 18:26:25,740 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states
[2020-10-12 18:26:25,741 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-12 18:26:25,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2020-10-12 18:26:25,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90
[2020-10-12 18:26:25,741 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 10 states.
[2020-10-12 18:26:25,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-12 18:26:25,867 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions.
[2020-10-12 18:26:25,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2020-10-12 18:26:25,868 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 37
[2020-10-12 18:26:25,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-12 18:26:25,869 INFO L225 Difference]: With dead ends: 34
[2020-10-12 18:26:25,869 INFO L226 Difference]: Without dead ends: 30
[2020-10-12 18:26:25,870 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210
[2020-10-12 18:26:25,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states.
[2020-10-12 18:26:25,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30.
[2020-10-12 18:26:25,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states.
[2020-10-12 18:26:25,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions.
[2020-10-12 18:26:25,882 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 37
[2020-10-12 18:26:25,882 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-12 18:26:25,882 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions.
[2020-10-12 18:26:25,883 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states.
[2020-10-12 18:26:25,883 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions.
[2020-10-12 18:26:25,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44
[2020-10-12 18:26:25,887 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-12 18:26:25,887 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-12 18:26:25,888 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-10-12 18:26:25,888 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-12 18:26:25,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-12 18:26:25,889 INFO L82 PathProgramCache]: Analyzing trace with hash -155447420, now seen corresponding path program 5 times
[2020-10-12 18:26:25,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-12 18:26:25,889 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1912682271]
[2020-10-12 18:26:25,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-12 18:26:25,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:25,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:26,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:26,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61
[2020-10-12 18:26:26,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:26,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236
[2020-10-12 18:26:26,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:26,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14
[2020-10-12 18:26:26,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10
[2020-10-12 18:26:26,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31
[2020-10-12 18:26:26,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-10-12 18:26:26,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-12 18:26:26,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:26,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:26,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:26,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 18:26:26,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:26,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-12 18:26:26,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:26,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-12 18:26:26,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:26,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-12 18:26:26,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:26,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2020-10-12 18:26:26,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:26,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:26,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:26,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49
[2020-10-12 18:26:26,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:26,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196
[2020-10-12 18:26:26,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:26,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14
[2020-10-12 18:26:26,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-10-12 18:26:26,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46
[2020-10-12 18:26:26,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:26,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:26,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:26,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:26,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:26,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41
[2020-10-12 18:26:26,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:26,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167
[2020-10-12 18:26:26,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:26,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13
[2020-10-12 18:26:26,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:26,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39
[2020-10-12 18:26:26,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:26,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:26,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:26,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:26,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:26,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33
[2020-10-12 18:26:26,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:26,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75
[2020-10-12 18:26:26,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:26,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11
[2020-10-12 18:26:26,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:26,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31
[2020-10-12 18:26:26,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:26,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:26,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:26,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:26,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:26,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25
[2020-10-12 18:26:26,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:26,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50
[2020-10-12 18:26:26,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:26,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-10-12 18:26:26,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:26,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23
[2020-10-12 18:26:26,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:26,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:26,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:26,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:26,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:26,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17
[2020-10-12 18:26:26,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:26,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29
[2020-10-12 18:26:26,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:26,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-10-12 18:26:26,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:26,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15
[2020-10-12 18:26:26,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:26,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:26,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:26,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:26,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:26,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-10-12 18:26:26,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:26,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-10-12 18:26:26,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:26,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-10-12 18:26:26,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:26,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-10-12 18:26:26,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:26,911 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 8 proven. 51 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked.
[2020-10-12 18:26:26,911 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1912682271]
[2020-10-12 18:26:26,911 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-10-12 18:26:26,912 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12
[2020-10-12 18:26:26,912 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532105679]
[2020-10-12 18:26:26,912 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states
[2020-10-12 18:26:26,913 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-12 18:26:26,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2020-10-12 18:26:26,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132
[2020-10-12 18:26:26,914 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 12 states.
[2020-10-12 18:26:27,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-12 18:26:27,022 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions.
[2020-10-12 18:26:27,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2020-10-12 18:26:27,022 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 43
[2020-10-12 18:26:27,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-12 18:26:27,024 INFO L225 Difference]: With dead ends: 37
[2020-10-12 18:26:27,024 INFO L226 Difference]: Without dead ends: 33
[2020-10-12 18:26:27,025 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=104, Invalid=202, Unknown=0, NotChecked=0, Total=306
[2020-10-12 18:26:27,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states.
[2020-10-12 18:26:27,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33.
[2020-10-12 18:26:27,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states.
[2020-10-12 18:26:27,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions.
[2020-10-12 18:26:27,031 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 43
[2020-10-12 18:26:27,032 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-12 18:26:27,032 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions.
[2020-10-12 18:26:27,032 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states.
[2020-10-12 18:26:27,032 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions.
[2020-10-12 18:26:27,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50
[2020-10-12 18:26:27,033 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-12 18:26:27,034 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-12 18:26:27,034 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2020-10-12 18:26:27,034 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-12 18:26:27,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-12 18:26:27,035 INFO L82 PathProgramCache]: Analyzing trace with hash 1716183644, now seen corresponding path program 6 times
[2020-10-12 18:26:27,035 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-12 18:26:27,035 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1167742057]
[2020-10-12 18:26:27,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-12 18:26:27,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:27,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:27,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:27,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69
[2020-10-12 18:26:27,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:27,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202
[2020-10-12 18:26:27,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:27,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-10-12 18:26:27,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10
[2020-10-12 18:26:27,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36
[2020-10-12 18:26:27,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:27,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-12 18:26:27,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:27,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:27,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:27,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 18:26:27,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:27,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-12 18:26:27,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:27,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-12 18:26:27,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:27,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-12 18:26:27,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:27,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2020-10-12 18:26:27,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:27,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:27,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:27,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57
[2020-10-12 18:26:27,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:27,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 255
[2020-10-12 18:26:27,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:27,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-10-12 18:26:27,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-10-12 18:26:27,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54
[2020-10-12 18:26:27,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:27,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:27,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:27,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:27,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:27,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49
[2020-10-12 18:26:27,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:27,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190
[2020-10-12 18:26:27,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:27,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15
[2020-10-12 18:26:27,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:27,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47
[2020-10-12 18:26:27,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:27,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:27,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:27,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:27,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:27,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41
[2020-10-12 18:26:27,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:27,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102
[2020-10-12 18:26:27,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:27,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13
[2020-10-12 18:26:27,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:27,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39
[2020-10-12 18:26:27,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:27,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:27,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:27,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:28,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:28,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33
[2020-10-12 18:26:28,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:28,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70
[2020-10-12 18:26:28,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:28,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11
[2020-10-12 18:26:28,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:28,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31
[2020-10-12 18:26:28,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:28,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:28,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:28,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:28,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:28,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25
[2020-10-12 18:26:28,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:28,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43
[2020-10-12 18:26:28,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:28,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-10-12 18:26:28,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:28,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23
[2020-10-12 18:26:28,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:28,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:28,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:28,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:28,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:28,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17
[2020-10-12 18:26:28,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:28,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21
[2020-10-12 18:26:28,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:28,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-10-12 18:26:28,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:28,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15
[2020-10-12 18:26:28,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:28,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:28,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:28,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:28,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:28,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-10-12 18:26:28,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:28,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-10-12 18:26:28,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:28,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-10-12 18:26:28,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:28,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-10-12 18:26:28,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:28,184 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 6 proven. 69 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked.
[2020-10-12 18:26:28,185 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1167742057]
[2020-10-12 18:26:28,185 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-10-12 18:26:28,185 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12
[2020-10-12 18:26:28,186 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484812559]
[2020-10-12 18:26:28,186 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states
[2020-10-12 18:26:28,186 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-12 18:26:28,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2020-10-12 18:26:28,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132
[2020-10-12 18:26:28,198 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 12 states.
[2020-10-12 18:26:28,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-12 18:26:28,338 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions.
[2020-10-12 18:26:28,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2020-10-12 18:26:28,338 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 49
[2020-10-12 18:26:28,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-12 18:26:28,340 INFO L225 Difference]: With dead ends: 40
[2020-10-12 18:26:28,340 INFO L226 Difference]: Without dead ends: 36
[2020-10-12 18:26:28,340 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
[2020-10-12 18:26:28,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states.
[2020-10-12 18:26:28,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36.
[2020-10-12 18:26:28,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states.
[2020-10-12 18:26:28,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions.
[2020-10-12 18:26:28,347 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 49
[2020-10-12 18:26:28,347 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-12 18:26:28,347 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions.
[2020-10-12 18:26:28,347 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states.
[2020-10-12 18:26:28,348 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions.
[2020-10-12 18:26:28,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56
[2020-10-12 18:26:28,349 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-12 18:26:28,349 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-12 18:26:28,349 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2020-10-12 18:26:28,349 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-12 18:26:28,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-12 18:26:28,350 INFO L82 PathProgramCache]: Analyzing trace with hash -1079602236, now seen corresponding path program 7 times
[2020-10-12 18:26:28,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-12 18:26:28,351 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1908434083]
[2020-10-12 18:26:28,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-12 18:26:28,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:28,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:28,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:28,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77
[2020-10-12 18:26:28,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:28,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259
[2020-10-12 18:26:28,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:28,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18
[2020-10-12 18:26:28,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10
[2020-10-12 18:26:28,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41
[2020-10-12 18:26:28,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:28,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-12 18:26:28,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:28,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:28,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:28,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 18:26:28,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:28,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-12 18:26:28,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:28,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-12 18:26:28,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:28,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-12 18:26:28,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:28,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2020-10-12 18:26:28,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:28,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:28,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:28,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65
[2020-10-12 18:26:28,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:28,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196
[2020-10-12 18:26:28,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:28,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18
[2020-10-12 18:26:28,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-10-12 18:26:28,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62
[2020-10-12 18:26:28,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:28,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:28,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:28,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:29,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:29,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57
[2020-10-12 18:26:29,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:29,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184
[2020-10-12 18:26:29,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:29,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17
[2020-10-12 18:26:29,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:29,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55
[2020-10-12 18:26:29,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:29,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:29,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:29,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:29,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:29,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49
[2020-10-12 18:26:29,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:29,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112
[2020-10-12 18:26:29,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:29,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15
[2020-10-12 18:26:29,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:29,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47
[2020-10-12 18:26:29,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:29,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:29,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:29,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:29,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:29,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41
[2020-10-12 18:26:29,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:29,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98
[2020-10-12 18:26:29,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:29,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13
[2020-10-12 18:26:29,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:29,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39
[2020-10-12 18:26:29,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:29,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:29,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:29,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:29,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:29,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33
[2020-10-12 18:26:29,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:29,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59
[2020-10-12 18:26:29,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:29,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11
[2020-10-12 18:26:29,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:29,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31
[2020-10-12 18:26:29,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:29,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:29,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:29,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:29,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:29,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25
[2020-10-12 18:26:29,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:29,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35
[2020-10-12 18:26:29,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:29,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-10-12 18:26:29,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:29,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23
[2020-10-12 18:26:29,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:29,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:29,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:29,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:29,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:29,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17
[2020-10-12 18:26:29,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:29,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18
[2020-10-12 18:26:29,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:29,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-10-12 18:26:29,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:29,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15
[2020-10-12 18:26:29,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:29,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:29,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:29,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:29,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:29,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-10-12 18:26:29,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:29,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-10-12 18:26:29,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:29,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-10-12 18:26:29,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:29,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-10-12 18:26:29,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:29,614 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 9 proven. 93 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked.
[2020-10-12 18:26:29,614 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1908434083]
[2020-10-12 18:26:29,615 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-10-12 18:26:29,615 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13
[2020-10-12 18:26:29,615 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950308173]
[2020-10-12 18:26:29,618 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states
[2020-10-12 18:26:29,619 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-12 18:26:29,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2020-10-12 18:26:29,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156
[2020-10-12 18:26:29,620 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand 13 states.
[2020-10-12 18:26:29,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-12 18:26:29,779 INFO L93 Difference]: Finished difference Result 43 states and 44 transitions.
[2020-10-12 18:26:29,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2020-10-12 18:26:29,779 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 55
[2020-10-12 18:26:29,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-12 18:26:29,781 INFO L225 Difference]: With dead ends: 43
[2020-10-12 18:26:29,781 INFO L226 Difference]: Without dead ends: 39
[2020-10-12 18:26:29,782 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=148, Invalid=272, Unknown=0, NotChecked=0, Total=420
[2020-10-12 18:26:29,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states.
[2020-10-12 18:26:29,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39.
[2020-10-12 18:26:29,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states.
[2020-10-12 18:26:29,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions.
[2020-10-12 18:26:29,792 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 55
[2020-10-12 18:26:29,793 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-12 18:26:29,793 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions.
[2020-10-12 18:26:29,794 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states.
[2020-10-12 18:26:29,794 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions.
[2020-10-12 18:26:29,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62
[2020-10-12 18:26:29,796 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-12 18:26:29,796 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-12 18:26:29,797 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2020-10-12 18:26:29,797 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-12 18:26:29,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-12 18:26:29,797 INFO L82 PathProgramCache]: Analyzing trace with hash 1035381916, now seen corresponding path program 8 times
[2020-10-12 18:26:29,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-12 18:26:29,798 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1245371974]
[2020-10-12 18:26:29,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-12 18:26:29,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:29,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:30,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:30,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-10-12 18:26:30,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:30,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 325
[2020-10-12 18:26:30,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:30,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20
[2020-10-12 18:26:30,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10
[2020-10-12 18:26:30,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46
[2020-10-12 18:26:30,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:30,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-12 18:26:30,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:30,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:30,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:30,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 18:26:30,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:30,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-12 18:26:30,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:30,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-12 18:26:30,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:30,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-12 18:26:30,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:30,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2020-10-12 18:26:30,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:30,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:30,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:30,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73
[2020-10-12 18:26:30,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:30,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 281
[2020-10-12 18:26:30,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:30,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20
[2020-10-12 18:26:30,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-10-12 18:26:30,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70
[2020-10-12 18:26:30,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:30,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:30,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:30,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:30,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:30,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65
[2020-10-12 18:26:30,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:30,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204
[2020-10-12 18:26:30,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:30,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19
[2020-10-12 18:26:30,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:30,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63
[2020-10-12 18:26:30,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:30,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:30,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:30,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:30,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:30,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57
[2020-10-12 18:26:30,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:30,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180
[2020-10-12 18:26:30,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:30,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17
[2020-10-12 18:26:30,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:30,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55
[2020-10-12 18:26:30,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:30,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:30,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:30,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:31,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:31,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49
[2020-10-12 18:26:31,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:31,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110
[2020-10-12 18:26:31,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:31,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15
[2020-10-12 18:26:31,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:31,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47
[2020-10-12 18:26:31,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:31,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:31,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:31,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:31,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:31,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41
[2020-10-12 18:26:31,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:31,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75
[2020-10-12 18:26:31,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:31,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13
[2020-10-12 18:26:31,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:31,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39
[2020-10-12 18:26:31,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:31,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:31,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:31,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:31,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:31,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33
[2020-10-12 18:26:31,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:31,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57
[2020-10-12 18:26:31,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:31,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11
[2020-10-12 18:26:31,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:31,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31
[2020-10-12 18:26:31,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:31,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:31,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:31,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:31,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:31,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25
[2020-10-12 18:26:31,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:31,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37
[2020-10-12 18:26:31,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:31,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-10-12 18:26:31,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:31,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23
[2020-10-12 18:26:31,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:31,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:31,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:31,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:31,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:31,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17
[2020-10-12 18:26:31,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:31,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22
[2020-10-12 18:26:31,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:31,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-10-12 18:26:31,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:31,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15
[2020-10-12 18:26:31,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:31,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:31,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:31,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:31,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:31,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-10-12 18:26:31,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:31,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-10-12 18:26:31,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:31,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-10-12 18:26:31,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:31,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-10-12 18:26:31,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:31,446 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 12 proven. 124 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked.
[2020-10-12 18:26:31,447 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1245371974]
[2020-10-12 18:26:31,447 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-10-12 18:26:31,447 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14
[2020-10-12 18:26:31,448 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860923494]
[2020-10-12 18:26:31,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states
[2020-10-12 18:26:31,448 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-12 18:26:31,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2020-10-12 18:26:31,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182
[2020-10-12 18:26:31,449 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand 14 states.
[2020-10-12 18:26:31,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-12 18:26:31,606 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions.
[2020-10-12 18:26:31,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2020-10-12 18:26:31,607 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 61
[2020-10-12 18:26:31,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-12 18:26:31,609 INFO L225 Difference]: With dead ends: 46
[2020-10-12 18:26:31,609 INFO L226 Difference]: Without dead ends: 42
[2020-10-12 18:26:31,610 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=179, Invalid=327, Unknown=0, NotChecked=0, Total=506
[2020-10-12 18:26:31,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states.
[2020-10-12 18:26:31,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42.
[2020-10-12 18:26:31,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states.
[2020-10-12 18:26:31,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions.
[2020-10-12 18:26:31,616 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 61
[2020-10-12 18:26:31,616 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-12 18:26:31,616 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions.
[2020-10-12 18:26:31,616 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states.
[2020-10-12 18:26:31,617 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions.
[2020-10-12 18:26:31,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68
[2020-10-12 18:26:31,618 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-12 18:26:31,618 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-12 18:26:31,618 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2020-10-12 18:26:31,618 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-12 18:26:31,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-12 18:26:31,619 INFO L82 PathProgramCache]: Analyzing trace with hash 952137732, now seen corresponding path program 9 times
[2020-10-12 18:26:31,619 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-12 18:26:31,619 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1417751420]
[2020-10-12 18:26:31,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-12 18:26:31,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:31,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:31,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:31,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93
[2020-10-12 18:26:31,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:31,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 325
[2020-10-12 18:26:31,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:31,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22
[2020-10-12 18:26:31,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10
[2020-10-12 18:26:31,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51
[2020-10-12 18:26:31,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:31,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-12 18:26:31,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:31,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:31,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:31,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 18:26:31,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:31,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-12 18:26:31,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:31,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-12 18:26:31,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:31,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-12 18:26:31,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:31,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2020-10-12 18:26:31,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:32,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:32,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:32,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81
[2020-10-12 18:26:32,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:32,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 247
[2020-10-12 18:26:32,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:32,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22
[2020-10-12 18:26:32,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-10-12 18:26:32,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78
[2020-10-12 18:26:32,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:32,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:32,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:32,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:32,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:32,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73
[2020-10-12 18:26:32,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:32,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241
[2020-10-12 18:26:32,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:32,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21
[2020-10-12 18:26:32,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:32,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71
[2020-10-12 18:26:32,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:32,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:32,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:32,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:32,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:32,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65
[2020-10-12 18:26:32,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:32,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 261
[2020-10-12 18:26:32,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:32,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19
[2020-10-12 18:26:32,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:32,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63
[2020-10-12 18:26:32,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:32,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:32,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:32,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:33,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:33,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57
[2020-10-12 18:26:33,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:33,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160
[2020-10-12 18:26:33,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:33,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17
[2020-10-12 18:26:33,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:33,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55
[2020-10-12 18:26:33,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:33,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:33,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:33,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:33,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:33,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49
[2020-10-12 18:26:33,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:33,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97
[2020-10-12 18:26:33,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:33,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15
[2020-10-12 18:26:33,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:33,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47
[2020-10-12 18:26:33,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:33,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:33,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:33,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:33,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:33,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41
[2020-10-12 18:26:33,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:33,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72
[2020-10-12 18:26:33,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:33,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13
[2020-10-12 18:26:33,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:33,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39
[2020-10-12 18:26:33,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:33,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:33,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:33,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:33,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:33,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33
[2020-10-12 18:26:33,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:33,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56
[2020-10-12 18:26:33,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:33,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11
[2020-10-12 18:26:33,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:33,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31
[2020-10-12 18:26:33,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:33,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:33,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:33,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:33,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:33,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25
[2020-10-12 18:26:33,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:33,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37
[2020-10-12 18:26:33,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:33,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-10-12 18:26:33,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:33,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23
[2020-10-12 18:26:33,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:33,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:33,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:33,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:33,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:33,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17
[2020-10-12 18:26:33,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:33,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17
[2020-10-12 18:26:33,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:33,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-10-12 18:26:33,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:33,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15
[2020-10-12 18:26:33,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:33,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:33,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:33,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:33,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:33,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-10-12 18:26:33,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:33,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-10-12 18:26:33,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:33,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-10-12 18:26:33,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:33,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-10-12 18:26:33,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:33,510 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 11 proven. 150 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked.
[2020-10-12 18:26:33,511 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1417751420]
[2020-10-12 18:26:33,511 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-10-12 18:26:33,511 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15
[2020-10-12 18:26:33,511 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122496628]
[2020-10-12 18:26:33,512 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states
[2020-10-12 18:26:33,512 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-12 18:26:33,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2020-10-12 18:26:33,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210
[2020-10-12 18:26:33,513 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand 15 states.
[2020-10-12 18:26:33,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-12 18:26:33,680 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions.
[2020-10-12 18:26:33,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2020-10-12 18:26:33,681 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 67
[2020-10-12 18:26:33,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-12 18:26:33,682 INFO L225 Difference]: With dead ends: 49
[2020-10-12 18:26:33,682 INFO L226 Difference]: Without dead ends: 45
[2020-10-12 18:26:33,683 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
[2020-10-12 18:26:33,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states.
[2020-10-12 18:26:33,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45.
[2020-10-12 18:26:33,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states.
[2020-10-12 18:26:33,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions.
[2020-10-12 18:26:33,689 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 67
[2020-10-12 18:26:33,689 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-12 18:26:33,690 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions.
[2020-10-12 18:26:33,690 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states.
[2020-10-12 18:26:33,690 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions.
[2020-10-12 18:26:33,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74
[2020-10-12 18:26:33,691 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-12 18:26:33,691 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-12 18:26:33,691 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2020-10-12 18:26:33,692 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-12 18:26:33,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-12 18:26:33,692 INFO L82 PathProgramCache]: Analyzing trace with hash 1540970204, now seen corresponding path program 10 times
[2020-10-12 18:26:33,692 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-12 18:26:33,692 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2095309494]
[2020-10-12 18:26:33,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-12 18:26:33,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:33,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:34,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:34,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101
[2020-10-12 18:26:34,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:34,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 310
[2020-10-12 18:26:34,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:34,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24
[2020-10-12 18:26:34,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10
[2020-10-12 18:26:34,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56
[2020-10-12 18:26:34,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:34,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-12 18:26:34,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:34,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:34,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:34,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 18:26:34,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:34,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0
[2020-10-12 18:26:34,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:34,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-12 18:26:34,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:34,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-12 18:26:34,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:34,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2020-10-12 18:26:34,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:34,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:34,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:34,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89
[2020-10-12 18:26:34,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:34,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 274
[2020-10-12 18:26:34,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:34,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24
[2020-10-12 18:26:34,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-10-12 18:26:34,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86
[2020-10-12 18:26:34,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:34,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:34,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:34,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:34,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:34,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81
[2020-10-12 18:26:34,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:34,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 312
[2020-10-12 18:26:34,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:34,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23
[2020-10-12 18:26:34,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:34,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79
[2020-10-12 18:26:34,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:34,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:34,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:34,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:34,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:34,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73
[2020-10-12 18:26:34,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:34,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193
[2020-10-12 18:26:34,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:34,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21
[2020-10-12 18:26:34,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:34,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71
[2020-10-12 18:26:34,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:34,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:34,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:34,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:35,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:35,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65
[2020-10-12 18:26:35,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:35,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156
[2020-10-12 18:26:35,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:35,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19
[2020-10-12 18:26:35,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:35,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63
[2020-10-12 18:26:35,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:35,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:35,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:35,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:35,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:35,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57
[2020-10-12 18:26:35,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:35,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119
[2020-10-12 18:26:35,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:35,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17
[2020-10-12 18:26:35,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:35,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55
[2020-10-12 18:26:35,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:35,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:35,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:35,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:35,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:35,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49
[2020-10-12 18:26:35,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:35,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104
[2020-10-12 18:26:35,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:35,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15
[2020-10-12 18:26:35,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:35,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47
[2020-10-12 18:26:35,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:35,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:35,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:35,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:35,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:35,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41
[2020-10-12 18:26:35,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:35,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76
[2020-10-12 18:26:35,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:35,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13
[2020-10-12 18:26:35,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:35,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39
[2020-10-12 18:26:35,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:35,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:35,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:35,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:35,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:35,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33
[2020-10-12 18:26:35,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:35,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44
[2020-10-12 18:26:35,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:35,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11
[2020-10-12 18:26:35,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:35,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31
[2020-10-12 18:26:35,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:35,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:35,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:35,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:35,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:35,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25
[2020-10-12 18:26:35,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:35,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26
[2020-10-12 18:26:35,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:35,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-10-12 18:26:35,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:35,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23
[2020-10-12 18:26:35,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:35,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:35,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:35,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:35,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:35,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17
[2020-10-12 18:26:35,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:35,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13
[2020-10-12 18:26:35,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:35,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-10-12 18:26:35,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:35,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15
[2020-10-12 18:26:35,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:35,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:35,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:35,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:35,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:35,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-10-12 18:26:35,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:35,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-10-12 18:26:35,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:35,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-10-12 18:26:35,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:35,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-10-12 18:26:35,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:35,721 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 18 proven. 177 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked.
[2020-10-12 18:26:35,722 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2095309494]
[2020-10-12 18:26:35,722 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-10-12 18:26:35,722 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16
[2020-10-12 18:26:35,722 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635127436]
[2020-10-12 18:26:35,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states
[2020-10-12 18:26:35,724 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-12 18:26:35,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2020-10-12 18:26:35,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240
[2020-10-12 18:26:35,725 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand 16 states.
[2020-10-12 18:26:35,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-12 18:26:35,906 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions.
[2020-10-12 18:26:35,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2020-10-12 18:26:35,907 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 73
[2020-10-12 18:26:35,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-12 18:26:35,909 INFO L225 Difference]: With dead ends: 52
[2020-10-12 18:26:35,909 INFO L226 Difference]: Without dead ends: 48
[2020-10-12 18:26:35,911 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=250, Invalid=452, Unknown=0, NotChecked=0, Total=702
[2020-10-12 18:26:35,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states.
[2020-10-12 18:26:35,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48.
[2020-10-12 18:26:35,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states.
[2020-10-12 18:26:35,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 49 transitions.
[2020-10-12 18:26:35,923 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 49 transitions. Word has length 73
[2020-10-12 18:26:35,923 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-12 18:26:35,923 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 49 transitions.
[2020-10-12 18:26:35,923 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states.
[2020-10-12 18:26:35,923 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 49 transitions.
[2020-10-12 18:26:35,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80
[2020-10-12 18:26:35,925 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-12 18:26:35,926 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-12 18:26:35,926 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2020-10-12 18:26:35,927 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-12 18:26:35,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-12 18:26:35,927 INFO L82 PathProgramCache]: Analyzing trace with hash -2010530748, now seen corresponding path program 11 times
[2020-10-12 18:26:35,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-12 18:26:35,928 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [223143949]
[2020-10-12 18:26:35,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-12 18:26:35,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:35,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:36,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:36,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109
[2020-10-12 18:26:36,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:36,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 369
[2020-10-12 18:26:36,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:36,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26
[2020-10-12 18:26:36,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10
[2020-10-12 18:26:36,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61
[2020-10-12 18:26:36,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:36,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-12 18:26:36,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:36,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:36,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:36,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 18:26:36,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:36,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0
[2020-10-12 18:26:36,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:36,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-12 18:26:36,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:36,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-12 18:26:36,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:36,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2020-10-12 18:26:36,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:36,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:36,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:36,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97
[2020-10-12 18:26:36,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:36,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 320
[2020-10-12 18:26:36,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:36,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26
[2020-10-12 18:26:36,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-10-12 18:26:36,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94
[2020-10-12 18:26:36,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:36,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:36,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:36,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:37,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:37,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89
[2020-10-12 18:26:37,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:37,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 307
[2020-10-12 18:26:37,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:37,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25
[2020-10-12 18:26:37,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:37,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87
[2020-10-12 18:26:37,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:37,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:37,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:37,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:37,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:37,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81
[2020-10-12 18:26:37,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:37,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 299
[2020-10-12 18:26:37,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:37,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23
[2020-10-12 18:26:37,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:37,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79
[2020-10-12 18:26:37,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:37,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:37,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:37,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:37,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:37,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73
[2020-10-12 18:26:37,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:37,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165
[2020-10-12 18:26:37,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:37,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21
[2020-10-12 18:26:37,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:37,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71
[2020-10-12 18:26:37,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:37,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:37,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:37,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:37,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:37,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65
[2020-10-12 18:26:37,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:37,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168
[2020-10-12 18:26:37,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:37,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19
[2020-10-12 18:26:37,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:37,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63
[2020-10-12 18:26:37,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:37,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:37,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:37,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:37,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:37,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57
[2020-10-12 18:26:37,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:37,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109
[2020-10-12 18:26:37,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:37,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17
[2020-10-12 18:26:37,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:37,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55
[2020-10-12 18:26:37,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:37,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:37,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:37,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:37,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:37,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49
[2020-10-12 18:26:37,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:37,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75
[2020-10-12 18:26:37,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:37,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15
[2020-10-12 18:26:37,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:37,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47
[2020-10-12 18:26:38,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:38,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:38,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:38,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:38,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:38,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41
[2020-10-12 18:26:38,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:38,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69
[2020-10-12 18:26:38,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:38,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13
[2020-10-12 18:26:38,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:38,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39
[2020-10-12 18:26:38,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:38,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:38,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:38,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:38,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:38,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33
[2020-10-12 18:26:38,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:38,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52
[2020-10-12 18:26:38,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:38,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11
[2020-10-12 18:26:38,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:38,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31
[2020-10-12 18:26:38,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:38,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:38,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:38,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:38,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:38,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25
[2020-10-12 18:26:38,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:38,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27
[2020-10-12 18:26:38,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:38,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-10-12 18:26:38,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:38,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23
[2020-10-12 18:26:38,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:38,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:38,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:38,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:38,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:38,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17
[2020-10-12 18:26:38,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:38,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14
[2020-10-12 18:26:38,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:38,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-10-12 18:26:38,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:38,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15
[2020-10-12 18:26:38,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:38,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:38,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:38,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:38,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:38,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-10-12 18:26:38,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:38,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-10-12 18:26:38,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:38,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-10-12 18:26:38,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:38,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-10-12 18:26:38,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:38,374 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 8 proven. 217 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked.
[2020-10-12 18:26:38,375 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [223143949]
[2020-10-12 18:26:38,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-10-12 18:26:38,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17
[2020-10-12 18:26:38,375 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070677425]
[2020-10-12 18:26:38,376 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states
[2020-10-12 18:26:38,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-12 18:26:38,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2020-10-12 18:26:38,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272
[2020-10-12 18:26:38,377 INFO L87 Difference]: Start difference. First operand 48 states and 49 transitions. Second operand 17 states.
[2020-10-12 18:26:38,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-12 18:26:38,543 INFO L93 Difference]: Finished difference Result 55 states and 56 transitions.
[2020-10-12 18:26:38,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states.
[2020-10-12 18:26:38,544 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 79
[2020-10-12 18:26:38,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-12 18:26:38,545 INFO L225 Difference]: With dead ends: 55
[2020-10-12 18:26:38,545 INFO L226 Difference]: Without dead ends: 51
[2020-10-12 18:26:38,546 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=290, Invalid=522, Unknown=0, NotChecked=0, Total=812
[2020-10-12 18:26:38,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states.
[2020-10-12 18:26:38,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51.
[2020-10-12 18:26:38,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states.
[2020-10-12 18:26:38,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 52 transitions.
[2020-10-12 18:26:38,554 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 52 transitions. Word has length 79
[2020-10-12 18:26:38,554 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-12 18:26:38,555 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 52 transitions.
[2020-10-12 18:26:38,555 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states.
[2020-10-12 18:26:38,555 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions.
[2020-10-12 18:26:38,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86
[2020-10-12 18:26:38,556 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-12 18:26:38,556 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-12 18:26:38,556 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2020-10-12 18:26:38,556 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-12 18:26:38,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-12 18:26:38,556 INFO L82 PathProgramCache]: Analyzing trace with hash -986521316, now seen corresponding path program 12 times
[2020-10-12 18:26:38,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-12 18:26:38,557 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [904723775]
[2020-10-12 18:26:38,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-12 18:26:38,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:38,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:39,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:39,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117
[2020-10-12 18:26:39,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:39,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 456
[2020-10-12 18:26:39,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:39,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28
[2020-10-12 18:26:39,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10
[2020-10-12 18:26:39,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66
[2020-10-12 18:26:39,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:39,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-12 18:26:39,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:39,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:39,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:39,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 18:26:39,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:39,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-12 18:26:39,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:39,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-12 18:26:39,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:39,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-12 18:26:39,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:39,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2020-10-12 18:26:39,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:39,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:39,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:39,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105
[2020-10-12 18:26:39,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:39,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 438
[2020-10-12 18:26:39,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:39,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28
[2020-10-12 18:26:39,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-10-12 18:26:39,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102
[2020-10-12 18:26:39,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:39,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:39,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:39,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:39,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:39,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97
[2020-10-12 18:26:39,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:39,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 330
[2020-10-12 18:26:39,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:39,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27
[2020-10-12 18:26:39,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:39,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95
[2020-10-12 18:26:39,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:39,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:39,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:39,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:40,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:40,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89
[2020-10-12 18:26:40,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:40,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 322
[2020-10-12 18:26:40,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:40,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25
[2020-10-12 18:26:40,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:40,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87
[2020-10-12 18:26:40,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:40,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:40,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:40,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:40,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:40,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81
[2020-10-12 18:26:40,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:40,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233
[2020-10-12 18:26:40,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:40,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23
[2020-10-12 18:26:40,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:40,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79
[2020-10-12 18:26:40,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:40,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:40,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:40,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:40,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:40,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73
[2020-10-12 18:26:40,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:40,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179
[2020-10-12 18:26:40,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:40,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21
[2020-10-12 18:26:40,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:40,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71
[2020-10-12 18:26:40,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:40,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:40,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:40,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:40,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:40,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65
[2020-10-12 18:26:40,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:40,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129
[2020-10-12 18:26:40,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:40,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19
[2020-10-12 18:26:40,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:40,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63
[2020-10-12 18:26:40,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:40,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:40,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:40,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:41,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:41,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57
[2020-10-12 18:26:41,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:41,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99
[2020-10-12 18:26:41,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:41,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17
[2020-10-12 18:26:41,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:41,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55
[2020-10-12 18:26:41,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:41,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:41,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:41,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:41,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:41,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49
[2020-10-12 18:26:41,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:41,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75
[2020-10-12 18:26:41,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:41,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15
[2020-10-12 18:26:41,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:41,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47
[2020-10-12 18:26:41,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:41,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:41,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:41,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:41,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:41,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41
[2020-10-12 18:26:41,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:41,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48
[2020-10-12 18:26:41,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:41,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13
[2020-10-12 18:26:41,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:41,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39
[2020-10-12 18:26:41,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:41,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:41,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:41,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:41,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:41,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33
[2020-10-12 18:26:41,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:41,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35
[2020-10-12 18:26:41,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:41,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11
[2020-10-12 18:26:41,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:41,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31
[2020-10-12 18:26:41,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:41,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:41,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:41,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:41,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:41,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25
[2020-10-12 18:26:41,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:41,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22
[2020-10-12 18:26:41,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:41,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-10-12 18:26:41,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:41,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23
[2020-10-12 18:26:41,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:41,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:41,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:41,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:41,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:41,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17
[2020-10-12 18:26:41,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:41,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-10-12 18:26:41,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:41,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-10-12 18:26:41,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:41,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15
[2020-10-12 18:26:41,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:41,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:41,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:41,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:41,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:41,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-10-12 18:26:41,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:41,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-10-12 18:26:41,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:41,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-10-12 18:26:41,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:41,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-10-12 18:26:41,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:41,438 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 22 proven. 272 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked.
[2020-10-12 18:26:41,439 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [904723775]
[2020-10-12 18:26:41,439 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-10-12 18:26:41,439 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18
[2020-10-12 18:26:41,440 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565048435]
[2020-10-12 18:26:41,441 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states
[2020-10-12 18:26:41,441 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-12 18:26:41,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2020-10-12 18:26:41,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=194, Unknown=0, NotChecked=0, Total=306
[2020-10-12 18:26:41,442 INFO L87 Difference]: Start difference. First operand 51 states and 52 transitions. Second operand 18 states.
[2020-10-12 18:26:41,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-12 18:26:41,621 INFO L93 Difference]: Finished difference Result 58 states and 59 transitions.
[2020-10-12 18:26:41,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2020-10-12 18:26:41,622 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 85
[2020-10-12 18:26:41,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-12 18:26:41,623 INFO L225 Difference]: With dead ends: 58
[2020-10-12 18:26:41,623 INFO L226 Difference]: Without dead ends: 54
[2020-10-12 18:26:41,624 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=333, Invalid=597, Unknown=0, NotChecked=0, Total=930
[2020-10-12 18:26:41,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states.
[2020-10-12 18:26:41,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54.
[2020-10-12 18:26:41,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states.
[2020-10-12 18:26:41,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 55 transitions.
[2020-10-12 18:26:41,634 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 55 transitions. Word has length 85
[2020-10-12 18:26:41,634 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-12 18:26:41,634 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 55 transitions.
[2020-10-12 18:26:41,634 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states.
[2020-10-12 18:26:41,635 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 55 transitions.
[2020-10-12 18:26:41,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92
[2020-10-12 18:26:41,635 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-12 18:26:41,636 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-12 18:26:41,636 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2020-10-12 18:26:41,636 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-12 18:26:41,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-12 18:26:41,636 INFO L82 PathProgramCache]: Analyzing trace with hash 1073897604, now seen corresponding path program 13 times
[2020-10-12 18:26:41,637 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-12 18:26:41,637 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1985190948]
[2020-10-12 18:26:41,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-12 18:26:41,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:41,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:41,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:41,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125
[2020-10-12 18:26:41,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:41,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 342
[2020-10-12 18:26:41,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:41,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30
[2020-10-12 18:26:41,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10
[2020-10-12 18:26:41,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71
[2020-10-12 18:26:41,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:42,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-12 18:26:42,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:42,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:42,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:42,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 18:26:42,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:42,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-12 18:26:42,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:42,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-12 18:26:42,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:42,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-12 18:26:42,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:42,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2020-10-12 18:26:42,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:42,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:42,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:42,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113
[2020-10-12 18:26:42,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:42,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 344
[2020-10-12 18:26:42,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:42,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30
[2020-10-12 18:26:42,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-10-12 18:26:42,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110
[2020-10-12 18:26:42,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:42,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:42,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:42,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:42,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:42,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105
[2020-10-12 18:26:42,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:42,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 280
[2020-10-12 18:26:42,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:42,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29
[2020-10-12 18:26:42,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:42,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103
[2020-10-12 18:26:42,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:42,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:42,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:42,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:42,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:42,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97
[2020-10-12 18:26:42,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:42,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221
[2020-10-12 18:26:42,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:42,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27
[2020-10-12 18:26:42,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:42,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95
[2020-10-12 18:26:42,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:42,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:42,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:42,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:43,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:43,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89
[2020-10-12 18:26:43,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:43,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 301
[2020-10-12 18:26:43,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:43,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25
[2020-10-12 18:26:43,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:43,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87
[2020-10-12 18:26:43,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:43,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:43,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:43,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:43,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:43,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81
[2020-10-12 18:26:43,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:43,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204
[2020-10-12 18:26:43,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:43,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23
[2020-10-12 18:26:43,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:43,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79
[2020-10-12 18:26:43,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:43,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:43,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:43,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:43,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:43,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73
[2020-10-12 18:26:43,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:43,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170
[2020-10-12 18:26:43,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:43,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21
[2020-10-12 18:26:43,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:43,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71
[2020-10-12 18:26:43,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:43,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:43,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:43,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:43,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:43,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65
[2020-10-12 18:26:43,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:43,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144
[2020-10-12 18:26:43,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:43,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19
[2020-10-12 18:26:43,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:43,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63
[2020-10-12 18:26:43,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:43,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:43,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:43,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:44,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:44,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57
[2020-10-12 18:26:44,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:44,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137
[2020-10-12 18:26:44,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:44,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17
[2020-10-12 18:26:44,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:44,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55
[2020-10-12 18:26:44,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:44,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:44,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:44,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:44,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:44,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49
[2020-10-12 18:26:44,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:44,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100
[2020-10-12 18:26:44,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:44,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15
[2020-10-12 18:26:44,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:44,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47
[2020-10-12 18:26:44,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:44,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:44,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:44,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:44,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:44,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41
[2020-10-12 18:26:44,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:44,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47
[2020-10-12 18:26:44,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:44,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13
[2020-10-12 18:26:44,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:44,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39
[2020-10-12 18:26:44,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:44,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:44,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:44,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:44,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:44,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33
[2020-10-12 18:26:44,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:44,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42
[2020-10-12 18:26:44,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:44,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11
[2020-10-12 18:26:44,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:44,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31
[2020-10-12 18:26:44,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:44,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:44,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:44,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:44,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:44,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25
[2020-10-12 18:26:44,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:44,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23
[2020-10-12 18:26:44,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:44,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-10-12 18:26:44,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:44,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23
[2020-10-12 18:26:44,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:44,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:44,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:44,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:44,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:44,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17
[2020-10-12 18:26:44,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:44,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12
[2020-10-12 18:26:44,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:44,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-10-12 18:26:44,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:44,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15
[2020-10-12 18:26:44,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:44,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:44,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:44,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:44,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:44,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-10-12 18:26:44,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:44,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-10-12 18:26:44,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:44,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-10-12 18:26:44,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:44,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-10-12 18:26:44,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:44,541 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 28 proven. 322 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked.
[2020-10-12 18:26:44,541 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1985190948]
[2020-10-12 18:26:44,541 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-10-12 18:26:44,541 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19
[2020-10-12 18:26:44,541 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297351256]
[2020-10-12 18:26:44,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states
[2020-10-12 18:26:44,542 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-12 18:26:44,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2020-10-12 18:26:44,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=215, Unknown=0, NotChecked=0, Total=342
[2020-10-12 18:26:44,543 INFO L87 Difference]: Start difference. First operand 54 states and 55 transitions. Second operand 19 states.
[2020-10-12 18:26:44,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-12 18:26:44,753 INFO L93 Difference]: Finished difference Result 61 states and 62 transitions.
[2020-10-12 18:26:44,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states.
[2020-10-12 18:26:44,753 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 91
[2020-10-12 18:26:44,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-12 18:26:44,755 INFO L225 Difference]: With dead ends: 61
[2020-10-12 18:26:44,755 INFO L226 Difference]: Without dead ends: 57
[2020-10-12 18:26:44,757 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=379, Invalid=677, Unknown=0, NotChecked=0, Total=1056
[2020-10-12 18:26:44,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states.
[2020-10-12 18:26:44,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57.
[2020-10-12 18:26:44,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states.
[2020-10-12 18:26:44,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 58 transitions.
[2020-10-12 18:26:44,763 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 58 transitions. Word has length 91
[2020-10-12 18:26:44,763 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-12 18:26:44,763 INFO L479 AbstractCegarLoop]: Abstraction has 57 states and 58 transitions.
[2020-10-12 18:26:44,763 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states.
[2020-10-12 18:26:44,763 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 58 transitions.
[2020-10-12 18:26:44,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98
[2020-10-12 18:26:44,764 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-12 18:26:44,764 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-12 18:26:44,765 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2020-10-12 18:26:44,765 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-12 18:26:44,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-12 18:26:44,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1572648100, now seen corresponding path program 14 times
[2020-10-12 18:26:44,765 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-12 18:26:44,765 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1114864318]
[2020-10-12 18:26:44,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-12 18:26:44,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:44,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:45,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:45,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133
[2020-10-12 18:26:45,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:45,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 352
[2020-10-12 18:26:45,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:45,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32
[2020-10-12 18:26:45,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10
[2020-10-12 18:26:45,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76
[2020-10-12 18:26:45,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:45,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-12 18:26:45,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:45,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:45,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:45,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 18:26:45,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:45,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0
[2020-10-12 18:26:45,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:45,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-12 18:26:45,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:45,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-12 18:26:45,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:45,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2020-10-12 18:26:45,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:45,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:45,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:45,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121
[2020-10-12 18:26:45,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:45,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 375
[2020-10-12 18:26:45,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:45,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32
[2020-10-12 18:26:45,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-10-12 18:26:45,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118
[2020-10-12 18:26:45,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:45,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:45,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:45,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:45,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:45,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113
[2020-10-12 18:26:45,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:45,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 356
[2020-10-12 18:26:45,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:45,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31
[2020-10-12 18:26:45,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:45,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111
[2020-10-12 18:26:45,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:45,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:46,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:46,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:46,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:46,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105
[2020-10-12 18:26:46,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:46,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232
[2020-10-12 18:26:46,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:46,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29
[2020-10-12 18:26:46,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:46,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103
[2020-10-12 18:26:46,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:46,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:46,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:46,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:46,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:46,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97
[2020-10-12 18:26:46,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:46,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198
[2020-10-12 18:26:46,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:46,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27
[2020-10-12 18:26:46,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:46,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95
[2020-10-12 18:26:46,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:46,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:46,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:46,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:46,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:46,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89
[2020-10-12 18:26:46,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:46,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173
[2020-10-12 18:26:46,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:46,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25
[2020-10-12 18:26:46,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:46,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87
[2020-10-12 18:26:46,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:46,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:46,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:46,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:46,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:46,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81
[2020-10-12 18:26:46,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:46,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220
[2020-10-12 18:26:46,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:46,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23
[2020-10-12 18:26:46,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:46,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79
[2020-10-12 18:26:46,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:46,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:46,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:46,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:47,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:47,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73
[2020-10-12 18:26:47,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:47,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151
[2020-10-12 18:26:47,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:47,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21
[2020-10-12 18:26:47,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:47,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71
[2020-10-12 18:26:47,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:47,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:47,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:47,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:47,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:47,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65
[2020-10-12 18:26:47,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:47,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85
[2020-10-12 18:26:47,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:47,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19
[2020-10-12 18:26:47,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:47,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63
[2020-10-12 18:26:47,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:47,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:47,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:47,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:47,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:47,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57
[2020-10-12 18:26:47,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:47,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98
[2020-10-12 18:26:47,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:47,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17
[2020-10-12 18:26:47,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:47,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55
[2020-10-12 18:26:47,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:47,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:47,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:47,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:47,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:47,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49
[2020-10-12 18:26:47,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:47,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44
[2020-10-12 18:26:47,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:47,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15
[2020-10-12 18:26:47,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:47,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47
[2020-10-12 18:26:47,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:47,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:47,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:47,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:47,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:47,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41
[2020-10-12 18:26:47,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:47,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34
[2020-10-12 18:26:47,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:47,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13
[2020-10-12 18:26:47,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:47,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39
[2020-10-12 18:26:47,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:47,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:47,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:47,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:47,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:47,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33
[2020-10-12 18:26:47,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:47,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22
[2020-10-12 18:26:47,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:47,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11
[2020-10-12 18:26:47,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:47,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31
[2020-10-12 18:26:47,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:47,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:47,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:47,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:47,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:47,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25
[2020-10-12 18:26:47,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:47,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15
[2020-10-12 18:26:47,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:47,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-10-12 18:26:47,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:47,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23
[2020-10-12 18:26:47,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:47,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:47,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:47,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:47,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:47,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17
[2020-10-12 18:26:47,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:47,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-10-12 18:26:47,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:47,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-10-12 18:26:47,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:47,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15
[2020-10-12 18:26:47,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:47,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:47,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:47,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:47,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:47,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-10-12 18:26:47,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:47,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-12 18:26:47,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:47,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-10-12 18:26:47,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:47,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-10-12 18:26:47,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:47,671 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 58 proven. 346 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked.
[2020-10-12 18:26:47,672 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1114864318]
[2020-10-12 18:26:47,672 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-10-12 18:26:47,672 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21
[2020-10-12 18:26:47,673 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213990963]
[2020-10-12 18:26:47,673 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states
[2020-10-12 18:26:47,673 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-12 18:26:47,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2020-10-12 18:26:47,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=274, Unknown=0, NotChecked=0, Total=420
[2020-10-12 18:26:47,674 INFO L87 Difference]: Start difference. First operand 57 states and 58 transitions. Second operand 21 states.
[2020-10-12 18:26:47,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-12 18:26:47,900 INFO L93 Difference]: Finished difference Result 64 states and 65 transitions.
[2020-10-12 18:26:47,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states.
[2020-10-12 18:26:47,901 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 97
[2020-10-12 18:26:47,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-12 18:26:47,902 INFO L225 Difference]: With dead ends: 64
[2020-10-12 18:26:47,902 INFO L226 Difference]: Without dead ends: 60
[2020-10-12 18:26:47,904 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=446, Invalid=814, Unknown=0, NotChecked=0, Total=1260
[2020-10-12 18:26:47,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states.
[2020-10-12 18:26:47,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60.
[2020-10-12 18:26:47,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states.
[2020-10-12 18:26:47,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 61 transitions.
[2020-10-12 18:26:47,909 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 61 transitions. Word has length 97
[2020-10-12 18:26:47,909 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-12 18:26:47,909 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 61 transitions.
[2020-10-12 18:26:47,910 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states.
[2020-10-12 18:26:47,910 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 61 transitions.
[2020-10-12 18:26:47,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104
[2020-10-12 18:26:47,911 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-12 18:26:47,911 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-12 18:26:47,911 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2020-10-12 18:26:47,911 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-12 18:26:47,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-12 18:26:47,911 INFO L82 PathProgramCache]: Analyzing trace with hash 1584030916, now seen corresponding path program 15 times
[2020-10-12 18:26:47,912 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-12 18:26:47,912 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [733317431]
[2020-10-12 18:26:47,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-12 18:26:47,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:47,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:48,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:48,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141
[2020-10-12 18:26:48,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:48,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 422
[2020-10-12 18:26:48,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:48,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34
[2020-10-12 18:26:48,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10
[2020-10-12 18:26:48,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81
[2020-10-12 18:26:48,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:48,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-12 18:26:48,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:48,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:48,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:48,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 18:26:48,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:48,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0
[2020-10-12 18:26:48,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:48,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-12 18:26:48,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:48,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-12 18:26:48,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:48,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2020-10-12 18:26:48,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:48,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:48,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:48,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129
[2020-10-12 18:26:48,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:48,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 335
[2020-10-12 18:26:48,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:48,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34
[2020-10-12 18:26:48,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-10-12 18:26:48,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126
[2020-10-12 18:26:48,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:48,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:48,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:48,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:49,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:49,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121
[2020-10-12 18:26:49,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:49,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 330
[2020-10-12 18:26:49,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:49,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33
[2020-10-12 18:26:49,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:49,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119
[2020-10-12 18:26:49,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:49,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:49,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:49,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:49,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:49,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113
[2020-10-12 18:26:49,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:49,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 253
[2020-10-12 18:26:49,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:49,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31
[2020-10-12 18:26:49,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:49,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111
[2020-10-12 18:26:49,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:49,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:49,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:49,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:49,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:49,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105
[2020-10-12 18:26:49,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:49,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 353
[2020-10-12 18:26:49,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:49,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29
[2020-10-12 18:26:49,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:49,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103
[2020-10-12 18:26:49,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:49,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:49,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:49,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:50,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:50,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97
[2020-10-12 18:26:50,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:50,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223
[2020-10-12 18:26:50,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:50,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27
[2020-10-12 18:26:50,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:50,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95
[2020-10-12 18:26:50,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:50,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:50,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:50,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:50,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:50,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89
[2020-10-12 18:26:50,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:50,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177
[2020-10-12 18:26:50,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:50,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25
[2020-10-12 18:26:50,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:50,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87
[2020-10-12 18:26:50,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:50,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:50,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:50,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:50,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:50,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81
[2020-10-12 18:26:50,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:50,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124
[2020-10-12 18:26:50,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:50,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23
[2020-10-12 18:26:50,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:50,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79
[2020-10-12 18:26:50,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:50,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:50,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:50,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:50,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:50,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73
[2020-10-12 18:26:50,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:50,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112
[2020-10-12 18:26:50,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:50,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21
[2020-10-12 18:26:50,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:50,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71
[2020-10-12 18:26:50,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:50,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:50,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:50,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:50,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:50,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65
[2020-10-12 18:26:50,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:50,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84
[2020-10-12 18:26:50,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:50,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19
[2020-10-12 18:26:50,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:50,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63
[2020-10-12 18:26:50,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:50,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:50,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:50,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:50,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:50,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57
[2020-10-12 18:26:50,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:50,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62
[2020-10-12 18:26:50,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:50,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17
[2020-10-12 18:26:50,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:50,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55
[2020-10-12 18:26:50,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:50,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:50,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:50,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:50,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:50,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49
[2020-10-12 18:26:50,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:50,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47
[2020-10-12 18:26:50,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:50,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15
[2020-10-12 18:26:50,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:50,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47
[2020-10-12 18:26:50,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:50,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:50,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:50,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:50,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:50,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41
[2020-10-12 18:26:50,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:50,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34
[2020-10-12 18:26:50,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:50,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13
[2020-10-12 18:26:50,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:50,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39
[2020-10-12 18:26:50,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:50,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:50,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:50,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:50,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:50,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33
[2020-10-12 18:26:50,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:50,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23
[2020-10-12 18:26:50,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:50,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11
[2020-10-12 18:26:50,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:50,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31
[2020-10-12 18:26:50,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:50,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:50,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:50,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:50,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:50,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25
[2020-10-12 18:26:50,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:50,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16
[2020-10-12 18:26:50,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:50,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-10-12 18:26:50,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:50,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23
[2020-10-12 18:26:50,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:50,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:50,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:50,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:50,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:50,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17
[2020-10-12 18:26:50,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:50,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-10-12 18:26:50,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:50,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-10-12 18:26:50,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:50,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15
[2020-10-12 18:26:50,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:50,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:50,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:50,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:50,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:50,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-10-12 18:26:50,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:50,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-12 18:26:50,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:50,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-10-12 18:26:50,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:50,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-10-12 18:26:50,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:51,051 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 22 proven. 429 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked.
[2020-10-12 18:26:51,051 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [733317431]
[2020-10-12 18:26:51,051 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-10-12 18:26:51,052 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22
[2020-10-12 18:26:51,052 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295124436]
[2020-10-12 18:26:51,052 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states
[2020-10-12 18:26:51,052 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-12 18:26:51,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants.
[2020-10-12 18:26:51,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=299, Unknown=0, NotChecked=0, Total=462
[2020-10-12 18:26:51,053 INFO L87 Difference]: Start difference. First operand 60 states and 61 transitions. Second operand 22 states.
[2020-10-12 18:26:51,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-12 18:26:51,291 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions.
[2020-10-12 18:26:51,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states.
[2020-10-12 18:26:51,291 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 103
[2020-10-12 18:26:51,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-12 18:26:51,293 INFO L225 Difference]: With dead ends: 67
[2020-10-12 18:26:51,293 INFO L226 Difference]: Without dead ends: 63
[2020-10-12 18:26:51,295 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=499, Invalid=907, Unknown=0, NotChecked=0, Total=1406
[2020-10-12 18:26:51,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states.
[2020-10-12 18:26:51,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63.
[2020-10-12 18:26:51,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states.
[2020-10-12 18:26:51,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 64 transitions.
[2020-10-12 18:26:51,301 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 64 transitions. Word has length 103
[2020-10-12 18:26:51,301 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-12 18:26:51,301 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 64 transitions.
[2020-10-12 18:26:51,301 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states.
[2020-10-12 18:26:51,301 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 64 transitions.
[2020-10-12 18:26:51,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110
[2020-10-12 18:26:51,302 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-12 18:26:51,303 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-12 18:26:51,303 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2020-10-12 18:26:51,303 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-12 18:26:51,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-12 18:26:51,303 INFO L82 PathProgramCache]: Analyzing trace with hash 1066046876, now seen corresponding path program 16 times
[2020-10-12 18:26:51,304 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-12 18:26:51,304 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [397074873]
[2020-10-12 18:26:51,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-12 18:26:51,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:51,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:51,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:51,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149
[2020-10-12 18:26:51,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:51,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 461
[2020-10-12 18:26:51,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:51,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36
[2020-10-12 18:26:51,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10
[2020-10-12 18:26:51,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86
[2020-10-12 18:26:51,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:51,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-12 18:26:51,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:51,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:51,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:51,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 18:26:51,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:51,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0
[2020-10-12 18:26:51,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:51,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-12 18:26:51,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:51,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-12 18:26:51,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:51,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2020-10-12 18:26:51,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:51,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:52,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:52,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137
[2020-10-12 18:26:52,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:52,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 455
[2020-10-12 18:26:52,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:52,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36
[2020-10-12 18:26:52,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-10-12 18:26:52,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134
[2020-10-12 18:26:52,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:52,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:52,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:52,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:52,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:52,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129
[2020-10-12 18:26:52,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:52,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 343
[2020-10-12 18:26:52,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:52,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35
[2020-10-12 18:26:52,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:52,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127
[2020-10-12 18:26:52,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:52,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:52,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:52,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:53,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:53,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121
[2020-10-12 18:26:53,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:53,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 310
[2020-10-12 18:26:53,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:53,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33
[2020-10-12 18:26:53,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:53,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119
[2020-10-12 18:26:53,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:53,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:53,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:53,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:53,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:53,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113
[2020-10-12 18:26:53,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:53,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259
[2020-10-12 18:26:53,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:53,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31
[2020-10-12 18:26:53,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:53,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111
[2020-10-12 18:26:53,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:53,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:53,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:53,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:53,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:53,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105
[2020-10-12 18:26:53,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:53,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 212
[2020-10-12 18:26:53,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:53,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29
[2020-10-12 18:26:53,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:53,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103
[2020-10-12 18:26:53,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:53,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:53,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:53,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:53,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:53,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97
[2020-10-12 18:26:53,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:53,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190
[2020-10-12 18:26:53,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:53,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27
[2020-10-12 18:26:53,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:53,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95
[2020-10-12 18:26:53,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:53,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:53,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:53,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:54,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:54,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89
[2020-10-12 18:26:54,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:54,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194
[2020-10-12 18:26:54,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:54,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25
[2020-10-12 18:26:54,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:54,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87
[2020-10-12 18:26:54,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:54,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:54,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:54,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:54,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:54,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81
[2020-10-12 18:26:54,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:54,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121
[2020-10-12 18:26:54,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:54,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23
[2020-10-12 18:26:54,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:54,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79
[2020-10-12 18:26:54,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:54,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:54,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:54,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:54,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:54,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73
[2020-10-12 18:26:54,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:54,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111
[2020-10-12 18:26:54,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:54,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21
[2020-10-12 18:26:54,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:54,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71
[2020-10-12 18:26:54,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:54,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:54,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:54,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:54,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:54,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65
[2020-10-12 18:26:54,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:54,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85
[2020-10-12 18:26:54,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:54,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19
[2020-10-12 18:26:54,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:54,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63
[2020-10-12 18:26:54,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:54,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:54,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:54,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:54,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:54,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57
[2020-10-12 18:26:54,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:54,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59
[2020-10-12 18:26:54,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:54,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17
[2020-10-12 18:26:54,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:54,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55
[2020-10-12 18:26:54,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:54,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:54,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:54,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:54,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:54,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49
[2020-10-12 18:26:54,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:54,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82
[2020-10-12 18:26:54,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:54,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15
[2020-10-12 18:26:54,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:54,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47
[2020-10-12 18:26:54,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:54,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:54,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:54,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:54,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:54,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41
[2020-10-12 18:26:54,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:54,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57
[2020-10-12 18:26:54,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:54,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13
[2020-10-12 18:26:54,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:54,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39
[2020-10-12 18:26:54,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:54,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:54,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:54,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:54,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:54,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33
[2020-10-12 18:26:54,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:54,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38
[2020-10-12 18:26:54,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:54,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11
[2020-10-12 18:26:54,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:54,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31
[2020-10-12 18:26:54,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:54,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:54,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:54,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:54,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:54,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25
[2020-10-12 18:26:54,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:54,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24
[2020-10-12 18:26:54,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:54,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-10-12 18:26:54,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:54,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23
[2020-10-12 18:26:54,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:54,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:54,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:54,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:54,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:54,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17
[2020-10-12 18:26:54,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:54,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-10-12 18:26:54,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:54,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-10-12 18:26:54,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:54,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15
[2020-10-12 18:26:54,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:54,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:54,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:54,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:54,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:54,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-10-12 18:26:54,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:54,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-12 18:26:54,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:54,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-10-12 18:26:54,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:54,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-10-12 18:26:54,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:54,940 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 62 proven. 466 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked.
[2020-10-12 18:26:54,940 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [397074873]
[2020-10-12 18:26:54,941 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-10-12 18:26:54,941 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23
[2020-10-12 18:26:54,941 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706274862]
[2020-10-12 18:26:54,941 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states
[2020-10-12 18:26:54,942 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-12 18:26:54,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants.
[2020-10-12 18:26:54,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=325, Unknown=0, NotChecked=0, Total=506
[2020-10-12 18:26:54,942 INFO L87 Difference]: Start difference. First operand 63 states and 64 transitions. Second operand 23 states.
[2020-10-12 18:26:55,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-12 18:26:55,195 INFO L93 Difference]: Finished difference Result 70 states and 71 transitions.
[2020-10-12 18:26:55,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states.
[2020-10-12 18:26:55,195 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 109
[2020-10-12 18:26:55,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-12 18:26:55,197 INFO L225 Difference]: With dead ends: 70
[2020-10-12 18:26:55,197 INFO L226 Difference]: Without dead ends: 66
[2020-10-12 18:26:55,198 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=555, Invalid=1005, Unknown=0, NotChecked=0, Total=1560
[2020-10-12 18:26:55,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states.
[2020-10-12 18:26:55,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66.
[2020-10-12 18:26:55,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states.
[2020-10-12 18:26:55,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 67 transitions.
[2020-10-12 18:26:55,203 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 67 transitions. Word has length 109
[2020-10-12 18:26:55,204 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-12 18:26:55,204 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 67 transitions.
[2020-10-12 18:26:55,204 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states.
[2020-10-12 18:26:55,204 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 67 transitions.
[2020-10-12 18:26:55,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116
[2020-10-12 18:26:55,205 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-12 18:26:55,205 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-12 18:26:55,206 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2020-10-12 18:26:55,206 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-12 18:26:55,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-12 18:26:55,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1300351236, now seen corresponding path program 17 times
[2020-10-12 18:26:55,206 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-12 18:26:55,206 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [282731759]
[2020-10-12 18:26:55,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-12 18:26:55,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:55,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:55,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:55,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157
[2020-10-12 18:26:55,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:55,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 507
[2020-10-12 18:26:55,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:55,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38
[2020-10-12 18:26:55,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10
[2020-10-12 18:26:55,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91
[2020-10-12 18:26:55,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:55,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-12 18:26:55,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:55,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:55,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:55,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 18:26:55,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:55,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0
[2020-10-12 18:26:55,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:55,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-12 18:26:55,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:55,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-12 18:26:55,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:55,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2020-10-12 18:26:55,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:55,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:56,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:56,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145
[2020-10-12 18:26:56,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:56,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 446
[2020-10-12 18:26:56,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:56,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38
[2020-10-12 18:26:56,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-10-12 18:26:56,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142
[2020-10-12 18:26:56,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:56,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:56,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:56,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:56,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:56,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137
[2020-10-12 18:26:56,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:56,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 368
[2020-10-12 18:26:56,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:56,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37
[2020-10-12 18:26:56,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:56,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135
[2020-10-12 18:26:56,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:56,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:56,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:56,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:57,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:57,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129
[2020-10-12 18:26:57,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:57,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 406
[2020-10-12 18:26:57,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:57,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35
[2020-10-12 18:26:57,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:57,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127
[2020-10-12 18:26:57,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:57,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:57,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:57,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:57,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:57,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121
[2020-10-12 18:26:57,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:57,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 294
[2020-10-12 18:26:57,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:57,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33
[2020-10-12 18:26:57,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:57,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119
[2020-10-12 18:26:57,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:57,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:57,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:57,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:57,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:57,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113
[2020-10-12 18:26:57,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:57,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 253
[2020-10-12 18:26:57,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:57,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31
[2020-10-12 18:26:57,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:57,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111
[2020-10-12 18:26:57,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:57,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:57,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:57,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:57,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:57,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105
[2020-10-12 18:26:57,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:57,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204
[2020-10-12 18:26:57,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:57,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29
[2020-10-12 18:26:57,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:57,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103
[2020-10-12 18:26:57,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:57,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:57,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:57,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:58,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:58,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97
[2020-10-12 18:26:58,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:58,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 226
[2020-10-12 18:26:58,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:58,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27
[2020-10-12 18:26:58,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:58,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95
[2020-10-12 18:26:58,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:58,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:58,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:58,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:58,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:58,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89
[2020-10-12 18:26:58,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:58,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239
[2020-10-12 18:26:58,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:58,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25
[2020-10-12 18:26:58,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:58,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87
[2020-10-12 18:26:58,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:58,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:58,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:58,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:58,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:58,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81
[2020-10-12 18:26:58,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:58,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182
[2020-10-12 18:26:58,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:58,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23
[2020-10-12 18:26:58,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:58,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79
[2020-10-12 18:26:58,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:58,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:58,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:58,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:58,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:58,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73
[2020-10-12 18:26:58,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:58,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157
[2020-10-12 18:26:58,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:58,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21
[2020-10-12 18:26:58,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:58,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71
[2020-10-12 18:26:58,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:58,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:58,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:58,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:58,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:58,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65
[2020-10-12 18:26:58,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:58,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100
[2020-10-12 18:26:58,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:58,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19
[2020-10-12 18:26:58,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:58,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63
[2020-10-12 18:26:58,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:58,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:58,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:58,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:59,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:59,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57
[2020-10-12 18:26:59,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:59,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71
[2020-10-12 18:26:59,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:59,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17
[2020-10-12 18:26:59,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:59,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55
[2020-10-12 18:26:59,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:59,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:59,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:59,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:59,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:59,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49
[2020-10-12 18:26:59,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:59,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44
[2020-10-12 18:26:59,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:59,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15
[2020-10-12 18:26:59,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:59,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47
[2020-10-12 18:26:59,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:59,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:59,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:59,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:59,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:59,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41
[2020-10-12 18:26:59,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:59,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35
[2020-10-12 18:26:59,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:59,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13
[2020-10-12 18:26:59,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:59,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39
[2020-10-12 18:26:59,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:59,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:59,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:59,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:59,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:59,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33
[2020-10-12 18:26:59,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:59,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26
[2020-10-12 18:26:59,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:59,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11
[2020-10-12 18:26:59,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:59,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31
[2020-10-12 18:26:59,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:59,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:59,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:59,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:59,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:59,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25
[2020-10-12 18:26:59,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:59,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14
[2020-10-12 18:26:59,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:59,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-10-12 18:26:59,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:59,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23
[2020-10-12 18:26:59,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:59,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:59,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:59,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:59,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:59,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17
[2020-10-12 18:26:59,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:59,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-10-12 18:26:59,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:59,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-10-12 18:26:59,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:59,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15
[2020-10-12 18:26:59,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:26:59,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:26:59,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:59,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:26:59,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:26:59,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-10-12 18:26:59,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:26:59,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-12 18:26:59,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:26:59,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-10-12 18:26:59,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:26:59,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-10-12 18:26:59,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:26:59,442 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 84 proven. 496 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked.
[2020-10-12 18:26:59,443 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [282731759]
[2020-10-12 18:26:59,443 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-10-12 18:26:59,443 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23
[2020-10-12 18:26:59,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596460843]
[2020-10-12 18:26:59,444 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states
[2020-10-12 18:26:59,444 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-12 18:26:59,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants.
[2020-10-12 18:26:59,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=309, Unknown=0, NotChecked=0, Total=506
[2020-10-12 18:26:59,445 INFO L87 Difference]: Start difference. First operand 66 states and 67 transitions. Second operand 23 states.
[2020-10-12 18:26:59,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-12 18:26:59,712 INFO L93 Difference]: Finished difference Result 73 states and 74 transitions.
[2020-10-12 18:26:59,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states.
[2020-10-12 18:26:59,713 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 115
[2020-10-12 18:26:59,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-12 18:26:59,715 INFO L225 Difference]: With dead ends: 73
[2020-10-12 18:26:59,715 INFO L226 Difference]: Without dead ends: 69
[2020-10-12 18:26:59,716 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=593, Invalid=1047, Unknown=0, NotChecked=0, Total=1640
[2020-10-12 18:26:59,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states.
[2020-10-12 18:26:59,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69.
[2020-10-12 18:26:59,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states.
[2020-10-12 18:26:59,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 70 transitions.
[2020-10-12 18:26:59,721 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 70 transitions. Word has length 115
[2020-10-12 18:26:59,721 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-12 18:26:59,721 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 70 transitions.
[2020-10-12 18:26:59,721 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states.
[2020-10-12 18:26:59,722 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 70 transitions.
[2020-10-12 18:26:59,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122
[2020-10-12 18:26:59,723 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-12 18:26:59,723 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-12 18:26:59,723 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2020-10-12 18:26:59,723 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-12 18:26:59,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-12 18:26:59,724 INFO L82 PathProgramCache]: Analyzing trace with hash 227065820, now seen corresponding path program 18 times
[2020-10-12 18:26:59,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-12 18:26:59,724 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [334226276]
[2020-10-12 18:26:59,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-12 18:26:59,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:26:59,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:27:00,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:27:00,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165
[2020-10-12 18:27:00,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:27:00,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 586
[2020-10-12 18:27:00,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:27:00,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40
[2020-10-12 18:27:00,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10
[2020-10-12 18:27:00,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96
[2020-10-12 18:27:00,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:27:00,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-12 18:27:00,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:27:00,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:27:00,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:27:00,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 18:27:00,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:27:00,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0
[2020-10-12 18:27:00,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:27:00,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-12 18:27:00,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:27:00,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-12 18:27:00,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:27:00,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2020-10-12 18:27:00,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:27:00,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:27:00,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:27:00,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153
[2020-10-12 18:27:00,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:27:00,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 516
[2020-10-12 18:27:00,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:27:00,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40
[2020-10-12 18:27:00,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-10-12 18:27:00,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150
[2020-10-12 18:27:00,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:27:00,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:27:00,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:27:00,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:27:01,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:27:01,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145
[2020-10-12 18:27:01,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:27:01,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 451
[2020-10-12 18:27:01,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:27:01,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39
[2020-10-12 18:27:01,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:27:01,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143
[2020-10-12 18:27:01,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:27:01,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:27:01,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:27:01,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:27:01,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:27:01,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137
[2020-10-12 18:27:01,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:27:01,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 426
[2020-10-12 18:27:01,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:27:01,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37
[2020-10-12 18:27:01,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:27:01,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135
[2020-10-12 18:27:01,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:27:01,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:27:01,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:27:01,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:27:02,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:27:02,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129
[2020-10-12 18:27:02,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:27:02,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 347
[2020-10-12 18:27:02,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:27:02,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35
[2020-10-12 18:27:02,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:27:02,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127
[2020-10-12 18:27:02,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:27:02,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:27:02,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:27:02,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:27:02,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:27:02,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121
[2020-10-12 18:27:02,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:27:02,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 293
[2020-10-12 18:27:02,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:27:02,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33
[2020-10-12 18:27:02,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:27:02,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119
[2020-10-12 18:27:02,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:27:02,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:27:02,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:27:02,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:27:02,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:27:02,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113
[2020-10-12 18:27:02,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:27:02,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 287
[2020-10-12 18:27:02,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:27:02,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31
[2020-10-12 18:27:02,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:27:02,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111
[2020-10-12 18:27:02,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:27:02,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:27:02,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:27:02,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:27:03,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:27:03,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105
[2020-10-12 18:27:03,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:27:03,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205
[2020-10-12 18:27:03,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:27:03,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29
[2020-10-12 18:27:03,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:27:03,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103
[2020-10-12 18:27:03,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:27:03,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:27:03,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:27:03,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:27:03,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:27:03,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97
[2020-10-12 18:27:03,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:27:03,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178
[2020-10-12 18:27:03,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:27:03,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27
[2020-10-12 18:27:03,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:27:03,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95
[2020-10-12 18:27:03,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:27:03,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:27:03,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:27:03,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:27:03,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:27:03,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89
[2020-10-12 18:27:03,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:27:03,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159
[2020-10-12 18:27:03,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:27:03,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25
[2020-10-12 18:27:03,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:27:03,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87
[2020-10-12 18:27:03,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:27:03,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:27:03,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:27:03,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:27:03,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:27:03,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81
[2020-10-12 18:27:03,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:27:03,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150
[2020-10-12 18:27:03,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:27:03,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23
[2020-10-12 18:27:03,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:27:03,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79
[2020-10-12 18:27:03,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:27:03,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:27:03,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:27:03,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:27:03,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:27:03,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73
[2020-10-12 18:27:03,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:27:03,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106
[2020-10-12 18:27:03,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:27:03,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21
[2020-10-12 18:27:03,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:27:03,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71
[2020-10-12 18:27:03,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:27:03,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:27:03,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:27:03,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:27:03,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:27:03,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65
[2020-10-12 18:27:03,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:27:03,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81
[2020-10-12 18:27:03,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:27:03,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19
[2020-10-12 18:27:03,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:27:03,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63
[2020-10-12 18:27:03,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:27:03,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:27:03,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:27:03,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:27:04,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:27:04,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57
[2020-10-12 18:27:04,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:27:04,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86
[2020-10-12 18:27:04,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:27:04,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17
[2020-10-12 18:27:04,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:27:04,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55
[2020-10-12 18:27:04,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:27:04,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:27:04,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:27:04,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:27:04,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:27:04,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49
[2020-10-12 18:27:04,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:27:04,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46
[2020-10-12 18:27:04,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:27:04,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15
[2020-10-12 18:27:04,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:27:04,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47
[2020-10-12 18:27:04,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:27:04,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:27:04,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:27:04,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:27:04,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:27:04,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41
[2020-10-12 18:27:04,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:27:04,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33
[2020-10-12 18:27:04,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:27:04,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13
[2020-10-12 18:27:04,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:27:04,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39
[2020-10-12 18:27:04,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:27:04,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:27:04,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:27:04,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:27:04,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:27:04,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33
[2020-10-12 18:27:04,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:27:04,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21
[2020-10-12 18:27:04,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:27:04,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11
[2020-10-12 18:27:04,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:27:04,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31
[2020-10-12 18:27:04,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:27:04,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:27:04,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:27:04,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:27:04,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:27:04,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25
[2020-10-12 18:27:04,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:27:04,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14
[2020-10-12 18:27:04,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:27:04,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-10-12 18:27:04,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:27:04,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23
[2020-10-12 18:27:04,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:27:04,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:27:04,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:27:04,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:27:04,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:27:04,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17
[2020-10-12 18:27:04,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:27:04,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-10-12 18:27:04,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:27:04,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-10-12 18:27:04,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:27:04,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15
[2020-10-12 18:27:04,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:27:04,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:27:04,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:27:04,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:27:04,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:27:04,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-10-12 18:27:04,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:27:04,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-12 18:27:04,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:27:04,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-10-12 18:27:04,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:27:04,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-10-12 18:27:04,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:27:04,368 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 64 proven. 596 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked.
[2020-10-12 18:27:04,368 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [334226276]
[2020-10-12 18:27:04,368 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-10-12 18:27:04,368 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24
[2020-10-12 18:27:04,369 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836525723]
[2020-10-12 18:27:04,369 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states
[2020-10-12 18:27:04,369 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-12 18:27:04,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants.
[2020-10-12 18:27:04,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=217, Invalid=335, Unknown=0, NotChecked=0, Total=552
[2020-10-12 18:27:04,370 INFO L87 Difference]: Start difference. First operand 69 states and 70 transitions. Second operand 24 states.
[2020-10-12 18:27:04,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-12 18:27:04,651 INFO L93 Difference]: Finished difference Result 76 states and 77 transitions.
[2020-10-12 18:27:04,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states.
[2020-10-12 18:27:04,651 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 121
[2020-10-12 18:27:04,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-12 18:27:04,652 INFO L225 Difference]: With dead ends: 76
[2020-10-12 18:27:04,653 INFO L226 Difference]: Without dead ends: 72
[2020-10-12 18:27:04,654 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 342 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=654, Invalid=1152, Unknown=0, NotChecked=0, Total=1806
[2020-10-12 18:27:04,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states.
[2020-10-12 18:27:04,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72.
[2020-10-12 18:27:04,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states.
[2020-10-12 18:27:04,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 73 transitions.
[2020-10-12 18:27:04,659 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 73 transitions. Word has length 121
[2020-10-12 18:27:04,659 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-12 18:27:04,660 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 73 transitions.
[2020-10-12 18:27:04,660 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states.
[2020-10-12 18:27:04,660 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 73 transitions.
[2020-10-12 18:27:04,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128
[2020-10-12 18:27:04,661 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-12 18:27:04,661 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-12 18:27:04,661 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2020-10-12 18:27:04,662 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-12 18:27:04,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-12 18:27:04,662 INFO L82 PathProgramCache]: Analyzing trace with hash -479687356, now seen corresponding path program 19 times
[2020-10-12 18:27:04,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-12 18:27:04,662 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [574788564]
[2020-10-12 18:27:04,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-12 18:27:04,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:27:04,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:27:05,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:27:05,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173
[2020-10-12 18:27:05,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:27:05,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 648
[2020-10-12 18:27:05,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:27:05,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42
[2020-10-12 18:27:05,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10
[2020-10-12 18:27:05,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101
[2020-10-12 18:27:05,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:27:05,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-12 18:27:05,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:27:05,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:27:05,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:27:05,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 18:27:05,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:27:05,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0
[2020-10-12 18:27:05,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:27:05,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-12 18:27:05,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:27:05,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-12 18:27:05,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:27:05,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2020-10-12 18:27:05,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:27:05,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:27:05,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:27:05,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161
[2020-10-12 18:27:05,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:27:05,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 569
[2020-10-12 18:27:05,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:27:05,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42
[2020-10-12 18:27:05,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-10-12 18:27:05,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158
[2020-10-12 18:27:05,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:27:05,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:27:05,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:27:05,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:27:06,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:27:06,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153
[2020-10-12 18:27:06,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:27:06,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 514
[2020-10-12 18:27:06,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:27:06,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41
[2020-10-12 18:27:06,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:27:06,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151
[2020-10-12 18:27:06,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:27:06,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:27:06,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:27:06,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:27:06,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:27:06,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145
[2020-10-12 18:27:06,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:27:06,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 445
[2020-10-12 18:27:06,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:27:06,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39
[2020-10-12 18:27:06,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:27:06,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143
[2020-10-12 18:27:06,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:27:06,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:27:06,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:27:06,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:27:07,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:27:07,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137
[2020-10-12 18:27:07,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:27:07,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 414
[2020-10-12 18:27:07,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:27:07,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37
[2020-10-12 18:27:07,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:27:07,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135
[2020-10-12 18:27:07,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:27:07,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:27:07,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:27:07,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:27:07,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:27:07,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129
[2020-10-12 18:27:07,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:27:07,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 378
[2020-10-12 18:27:07,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:27:07,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35
[2020-10-12 18:27:07,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:27:07,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127
[2020-10-12 18:27:07,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:27:07,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:27:07,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:27:07,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:27:08,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:27:08,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121
[2020-10-12 18:27:08,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:27:08,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 295
[2020-10-12 18:27:08,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:27:08,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33
[2020-10-12 18:27:08,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:27:08,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119
[2020-10-12 18:27:08,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:27:08,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:27:08,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:27:08,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:27:08,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:27:08,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113
[2020-10-12 18:27:08,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:27:08,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 247
[2020-10-12 18:27:08,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:27:08,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31
[2020-10-12 18:27:08,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:27:08,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111
[2020-10-12 18:27:08,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:27:08,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:27:08,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:27:08,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:27:08,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:27:08,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105
[2020-10-12 18:27:08,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:27:08,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 208
[2020-10-12 18:27:08,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:27:08,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29
[2020-10-12 18:27:08,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:27:08,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103
[2020-10-12 18:27:08,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:27:08,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:27:08,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:27:08,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:27:08,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:27:08,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97
[2020-10-12 18:27:08,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:27:08,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196
[2020-10-12 18:27:08,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:27:08,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27
[2020-10-12 18:27:08,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:27:08,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95
[2020-10-12 18:27:08,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:27:08,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:27:08,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:27:08,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:27:09,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:27:09,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89
[2020-10-12 18:27:09,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:27:09,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151
[2020-10-12 18:27:09,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:27:09,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25
[2020-10-12 18:27:09,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:27:09,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87
[2020-10-12 18:27:09,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:27:09,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:27:09,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:27:09,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:27:09,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:27:09,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81
[2020-10-12 18:27:09,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:27:09,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144
[2020-10-12 18:27:09,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:27:09,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23
[2020-10-12 18:27:09,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:27:09,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79
[2020-10-12 18:27:09,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:27:09,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:27:09,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:27:09,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:27:09,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:27:09,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73
[2020-10-12 18:27:09,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:27:09,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98
[2020-10-12 18:27:09,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:27:09,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21
[2020-10-12 18:27:09,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:27:09,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71
[2020-10-12 18:27:09,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:27:09,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:27:09,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:27:09,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:27:09,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:27:09,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65
[2020-10-12 18:27:09,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:27:09,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78
[2020-10-12 18:27:09,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:27:09,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19
[2020-10-12 18:27:09,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:27:09,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63
[2020-10-12 18:27:09,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:27:09,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:27:09,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:27:09,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:27:09,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:27:09,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57
[2020-10-12 18:27:09,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:27:09,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58
[2020-10-12 18:27:09,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:27:09,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17
[2020-10-12 18:27:09,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:27:09,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55
[2020-10-12 18:27:09,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:27:09,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:27:09,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:27:09,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:27:09,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:27:09,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49
[2020-10-12 18:27:09,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:27:09,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47
[2020-10-12 18:27:09,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:27:09,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15
[2020-10-12 18:27:09,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:27:09,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47
[2020-10-12 18:27:09,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:27:09,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:27:09,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:27:09,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:27:09,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:27:09,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41
[2020-10-12 18:27:09,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:27:09,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36
[2020-10-12 18:27:09,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:27:09,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13
[2020-10-12 18:27:09,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:27:09,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39
[2020-10-12 18:27:09,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:27:09,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:27:09,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:27:09,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:27:09,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:27:09,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33
[2020-10-12 18:27:09,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:27:09,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23
[2020-10-12 18:27:09,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:27:09,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11
[2020-10-12 18:27:09,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:27:09,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31
[2020-10-12 18:27:09,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:27:09,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:27:09,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:27:09,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:27:09,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:27:09,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25
[2020-10-12 18:27:09,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:27:09,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14
[2020-10-12 18:27:09,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:27:09,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-10-12 18:27:09,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:27:09,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23
[2020-10-12 18:27:09,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:27:09,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:27:09,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:27:09,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:27:09,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:27:09,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17
[2020-10-12 18:27:09,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:27:09,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-10-12 18:27:09,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:27:09,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-10-12 18:27:09,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:27:09,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15
[2020-10-12 18:27:09,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 18:27:09,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-12 18:27:09,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 18:27:09,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 18:27:09,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 18:27:09,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-10-12 18:27:09,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 18:27:09,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-12 18:27:09,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 18:27:09,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-10-12 18:27:09,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 18:27:09,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-10-12 18:27:09,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 18:27:09,946 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 110 proven. 595 refuted. 0 times theorem prover too weak. 397 trivial. 0 not checked.
[2020-10-12 18:27:09,946 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [574788564]
[2020-10-12 18:27:09,946 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-10-12 18:27:09,946 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25
[2020-10-12 18:27:09,947 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132936293]
[2020-10-12 18:27:09,947 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states
[2020-10-12 18:27:09,947 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-12 18:27:09,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants.
[2020-10-12 18:27:09,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=238, Invalid=362, Unknown=0, NotChecked=0, Total=600
[2020-10-12 18:27:09,948 INFO L87 Difference]: Start difference. First operand 72 states and 73 transitions. Second operand 25 states.
[2020-10-12 18:27:10,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-12 18:27:10,264 INFO L93 Difference]: Finished difference Result 79 states and 80 transitions.
[2020-10-12 18:27:10,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states.
[2020-10-12 18:27:10,265 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 127
[2020-10-12 18:27:10,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-12 18:27:10,266 INFO L225 Difference]: With dead ends: 79
[2020-10-12 18:27:10,269 INFO L226 Difference]: Without dead ends: 75
[2020-10-12 18:27:10,270 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=718, Invalid=1262, Unknown=0, NotChecked=0, Total=1980
[2020-10-12 18:27:10,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states.
[2020-10-12 18:27:10,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75.
[2020-10-12 18:27:10,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states.
[2020-10-12 18:27:10,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 76 transitions.
[2020-10-12 18:27:10,277 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 76 transitions. Word has length 127
[2020-10-12 18:27:10,277 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-12 18:27:10,277 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 76 transitions.
[2020-10-12 18:27:10,278 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states.
[2020-10-12 18:27:10,278 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 76 transitions.
[2020-10-12 18:27:10,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134
[2020-10-12 18:27:10,279 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-12 18:27:10,279 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-12 18:27:10,279 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2020-10-12 18:27:10,279 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-12 18:27:10,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-12 18:27:10,280 INFO L82 PathProgramCache]: Analyzing trace with hash -1598174692, now seen corresponding path program 20 times
[2020-10-12 18:27:10,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-12 18:27:10,280 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [571504516]
[2020-10-12 18:27:10,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-12 18:27:10,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-10-12 18:27:10,305 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-10-12 18:27:10,306 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-10-12 18:27:10,326 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2020-10-12 18:27:10,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 06:27:10 BoogieIcfgContainer
[2020-10-12 18:27:10,352 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-10-12 18:27:10,354 INFO L168 Benchmark]: Toolchain (without parser) took 48104.72 ms. Allocated memory was 138.4 MB in the beginning and 1.0 GB in the end (delta: 880.8 MB). Free memory was 101.5 MB in the beginning and 955.3 MB in the end (delta: -853.8 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB.
[2020-10-12 18:27:10,355 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-10-12 18:27:10,356 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.57 ms. Allocated memory is still 138.4 MB. Free memory was 101.3 MB in the beginning and 92.1 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB.
[2020-10-12 18:27:10,356 INFO L168 Benchmark]: Boogie Preprocessor took 31.33 ms. Allocated memory is still 138.4 MB. Free memory was 92.1 MB in the beginning and 90.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB.
[2020-10-12 18:27:10,357 INFO L168 Benchmark]: RCFGBuilder took 317.20 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 90.8 MB in the beginning and 169.7 MB in the end (delta: -78.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB.
[2020-10-12 18:27:10,358 INFO L168 Benchmark]: TraceAbstraction took 47484.36 ms. Allocated memory was 201.9 MB in the beginning and 1.0 GB in the end (delta: 817.4 MB). Free memory was 169.7 MB in the beginning and 955.3 MB in the end (delta: -785.6 MB). Peak memory consumption was 31.8 MB. Max. memory is 7.1 GB.
[2020-10-12 18:27:10,360 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.19 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 265.57 ms. Allocated memory is still 138.4 MB. Free memory was 101.3 MB in the beginning and 92.1 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 31.33 ms. Allocated memory is still 138.4 MB. Free memory was 92.1 MB in the beginning and 90.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 317.20 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 90.8 MB in the beginning and 169.7 MB in the end (delta: -78.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 47484.36 ms. Allocated memory was 201.9 MB in the beginning and 1.0 GB in the end (delta: 817.4 MB). Free memory was 169.7 MB in the beginning and 955.3 MB in the end (delta: -785.6 MB). Peak memory consumption was 31.8 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 = 20;
[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 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);
[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, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 47.4s, OverallIterations: 21, TraceHistogramMax: 21, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 243 SDtfs, 687 SDslu, 1197 SDs, 0 SdLazy, 845 SolverSat, 135 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 940 GetRequests, 458 SyntacticMatches, 0 SemanticMatches, 482 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2681 ImplicationChecksByTransitivity, 5.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=20, 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, 20 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 42.9s InterpolantComputationTime, 1533 NumberOfCodeBlocks, 1533 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1380 ConstructedInterpolants, 0 QuantifiedInterpolants, 305358 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 1 PerfectInterpolantSequences, 3138/7600 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...