/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/sum_10x0-1.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-25 07:46:43,981 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-25 07:46:43,986 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 07:46:44,033 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 07:46:44,033 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 07:46:44,044 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 07:46:44,047 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 07:46:44,050 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 07:46:44,053 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 07:46:44,058 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 07:46:44,059 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 07:46:44,060 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 07:46:44,060 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 07:46:44,062 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 07:46:44,064 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 07:46:44,065 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 07:46:44,067 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 07:46:44,068 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 07:46:44,070 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 07:46:44,076 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 07:46:44,079 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 07:46:44,081 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 07:46:44,083 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 07:46:44,084 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 07:46:44,089 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 07:46:44,089 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 07:46:44,089 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 07:46:44,092 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 07:46:44,093 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 07:46:44,094 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 07:46:44,095 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 07:46:44,095 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 07:46:44,096 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 07:46:44,097 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 07:46:44,098 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 07:46:44,099 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 07:46:44,099 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 07:46:44,100 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 07:46:44,100 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 07:46:44,101 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 07:46:44,102 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 07:46:44,103 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-25 07:46:44,150 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-25 07:46:44,150 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 07:46:44,152 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 07:46:44,152 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-25 07:46:44,153 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-25 07:46:44,153 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 07:46:44,153 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-25 07:46:44,154 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-25 07:46:44,154 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-25 07:46:44,154 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-25 07:46:44,155 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 07:46:44,155 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 07:46:44,156 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 07:46:44,156 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-25 07:46:44,156 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-25 07:46:44,156 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-25 07:46:44,157 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-25 07:46:44,157 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 07:46:44,157 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-25 07:46:44,158 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-25 07:46:44,158 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-25 07:46:44,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 07:46:44,159 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 07:46:44,159 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 07:46:44,159 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 07:46:44,159 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-25 07:46:44,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 07:46:44,160 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 07:46:44,160 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-25 07:46:44,160 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true;
[2020-09-25 07:46:44,591 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 07:46:44,608 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 07:46:44,613 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 07:46:44,614 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-25 07:46:44,615 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-25 07:46:44,616 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/sum_10x0-1.c
[2020-09-25 07:46:44,692 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d94273b0c/0a0acff265da4a96897f56507fe03518/FLAG2a6a86e1d
[2020-09-25 07:46:45,180 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-25 07:46:45,181 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/sum_10x0-1.c
[2020-09-25 07:46:45,187 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d94273b0c/0a0acff265da4a96897f56507fe03518/FLAG2a6a86e1d
[2020-09-25 07:46:45,567 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d94273b0c/0a0acff265da4a96897f56507fe03518
[2020-09-25 07:46:45,581 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 07:46:45,587 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 07:46:45,591 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 07:46:45,592 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 07:46:45,596 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 07:46:45,597 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:46:45" (1/1) ...
[2020-09-25 07:46:45,601 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d4757cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:46:45, skipping insertion in model container
[2020-09-25 07:46:45,601 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:46:45" (1/1) ...
[2020-09-25 07:46:45,611 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-25 07:46:45,636 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-25 07:46:45,834 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 07:46:45,840 INFO L203 MainTranslator]: Completed pre-run
[2020-09-25 07:46:45,856 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 07:46:45,870 INFO L208 MainTranslator]: Completed translation
[2020-09-25 07:46:45,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:46:45 WrapperNode
[2020-09-25 07:46:45,871 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 07:46:45,872 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 07:46:45,872 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 07:46:45,872 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 07:46:45,888 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:46:45" (1/1) ...
[2020-09-25 07:46:45,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:46:45" (1/1) ...
[2020-09-25 07:46:45,894 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:46:45" (1/1) ...
[2020-09-25 07:46:45,894 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:46:45" (1/1) ...
[2020-09-25 07:46:45,898 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:46:45" (1/1) ...
[2020-09-25 07:46:45,900 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:46:45" (1/1) ...
[2020-09-25 07:46:45,901 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:46:45" (1/1) ...
[2020-09-25 07:46:45,903 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 07:46:45,903 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 07:46:45,903 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 07:46:45,903 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-25 07:46:45,904 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:46:45" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 07:46:46,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 07:46:46,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 07:46:46,050 INFO L138 BoogieDeclarations]: Found implementation of procedure sum
[2020-09-25 07:46:46,050 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 07:46:46,050 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 07:46:46,050 INFO L130 BoogieDeclarations]: Found specification of procedure sum
[2020-09-25 07:46:46,050 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-25 07:46:46,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 07:46:46,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 07:46:46,250 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 07:46:46,251 INFO L295 CfgBuilder]: Removed 0 assume(true) statements.
[2020-09-25 07:46:46,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:46:46 BoogieIcfgContainer
[2020-09-25 07:46:46,256 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 07:46:46,257 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 07:46:46,258 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 07:46:46,261 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-25 07:46:46,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:46:45" (1/3) ...
[2020-09-25 07:46:46,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@179206b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:46:46, skipping insertion in model container
[2020-09-25 07:46:46,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:46:45" (2/3) ...
[2020-09-25 07:46:46,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@179206b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:46:46, skipping insertion in model container
[2020-09-25 07:46:46,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:46:46" (3/3) ...
[2020-09-25 07:46:46,265 INFO L109 eAbstractionObserver]: Analyzing ICFG sum_10x0-1.c
[2020-09-25 07:46:46,276 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 07:46:46,284 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 07:46:46,306 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 07:46:46,336 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-25 07:46:46,336 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-25 07:46:46,336 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 07:46:46,336 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 07:46:46,337 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 07:46:46,337 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-25 07:46:46,337 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 07:46:46,338 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 07:46:46,356 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states.
[2020-09-25 07:46:46,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2020-09-25 07:46:46,363 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 07:46:46,364 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 07:46:46,364 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 07:46:46,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 07:46:46,370 INFO L82 PathProgramCache]: Analyzing trace with hash 989240825, now seen corresponding path program 1 times
[2020-09-25 07:46:46,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 07:46:46,380 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [395377784]
[2020-09-25 07:46:46,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 07:46:46,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:46,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:46,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:46,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:46,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27
[2020-09-25 07:46:46,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 07:46:46,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 323
[2020-09-25 07:46:46,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:46,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:46,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-25 07:46:46,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14
[2020-09-25 07:46:46,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12
[2020-09-25 07:46:46,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-25 07:46:46,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 07:46:46,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:46,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:46,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:46,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:46:46,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:46,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 07:46:46,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:46,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:46,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:46:46,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:46:46,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:46:46,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:46,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-09-25 07:46:46,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:46,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:46,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:46,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 07:46:46,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:46,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45
[2020-09-25 07:46:46,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:46,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:46,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-25 07:46:46,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:46:46,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-25 07:46:46,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:47,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 07:46:47,145 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [395377784]
[2020-09-25 07:46:47,147 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 07:46:47,147 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-09-25 07:46:47,148 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953907129]
[2020-09-25 07:46:47,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-09-25 07:46:47,156 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 07:46:47,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-09-25 07:46:47,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2020-09-25 07:46:47,178 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 7 states.
[2020-09-25 07:46:47,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 07:46:47,339 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions.
[2020-09-25 07:46:47,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2020-09-25 07:46:47,341 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18
[2020-09-25 07:46:47,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 07:46:47,355 INFO L225 Difference]: With dead ends: 39
[2020-09-25 07:46:47,356 INFO L226 Difference]: Without dead ends: 25
[2020-09-25 07:46:47,360 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2020-09-25 07:46:47,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states.
[2020-09-25 07:46:47,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25.
[2020-09-25 07:46:47,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states.
[2020-09-25 07:46:47,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions.
[2020-09-25 07:46:47,415 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 18
[2020-09-25 07:46:47,415 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 07:46:47,415 INFO L479 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions.
[2020-09-25 07:46:47,416 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-09-25 07:46:47,416 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions.
[2020-09-25 07:46:47,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2020-09-25 07:46:47,418 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 07:46:47,418 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 07:46:47,419 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 07:46:47,419 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 07:46:47,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 07:46:47,420 INFO L82 PathProgramCache]: Analyzing trace with hash 1852726759, now seen corresponding path program 1 times
[2020-09-25 07:46:47,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 07:46:47,420 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [798228491]
[2020-09-25 07:46:47,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 07:46:47,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:47,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:47,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:47,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:47,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38
[2020-09-25 07:46:47,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 07:46:47,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 511
[2020-09-25 07:46:47,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:47,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:47,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-25 07:46:47,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11
[2020-09-25 07:46:47,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14
[2020-09-25 07:46:47,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-25 07:46:47,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 07:46:47,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:47,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:47,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:47,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:46:47,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:47,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 07:46:47,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:47,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:47,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:46:47,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:46:47,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:46:47,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:47,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-09-25 07:46:47,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:47,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:48,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:48,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23
[2020-09-25 07:46:48,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:48,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52
[2020-09-25 07:46:48,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:48,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:48,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-25 07:46:48,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-25 07:46:48,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19
[2020-09-25 07:46:48,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:48,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:46:48,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:48,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:48,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:48,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 07:46:48,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:48,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21
[2020-09-25 07:46:48,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:48,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:48,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 07:46:48,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:46:48,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-25 07:46:48,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:48,106 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2020-09-25 07:46:48,107 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [798228491]
[2020-09-25 07:46:48,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 07:46:48,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6
[2020-09-25 07:46:48,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710924593]
[2020-09-25 07:46:48,110 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-25 07:46:48,110 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 07:46:48,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-25 07:46:48,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2020-09-25 07:46:48,111 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 6 states.
[2020-09-25 07:46:48,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 07:46:48,171 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions.
[2020-09-25 07:46:48,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-09-25 07:46:48,171 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27
[2020-09-25 07:46:48,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 07:46:48,173 INFO L225 Difference]: With dead ends: 36
[2020-09-25 07:46:48,173 INFO L226 Difference]: Without dead ends: 30
[2020-09-25 07:46:48,175 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
[2020-09-25 07:46:48,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states.
[2020-09-25 07:46:48,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30.
[2020-09-25 07:46:48,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states.
[2020-09-25 07:46:48,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions.
[2020-09-25 07:46:48,183 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 27
[2020-09-25 07:46:48,183 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 07:46:48,184 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions.
[2020-09-25 07:46:48,184 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-09-25 07:46:48,184 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions.
[2020-09-25 07:46:48,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37
[2020-09-25 07:46:48,186 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 07:46:48,186 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 07:46:48,186 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 07:46:48,186 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 07:46:48,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 07:46:48,187 INFO L82 PathProgramCache]: Analyzing trace with hash -175020829, now seen corresponding path program 2 times
[2020-09-25 07:46:48,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 07:46:48,188 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1123327786]
[2020-09-25 07:46:48,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 07:46:48,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:48,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:48,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:48,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:48,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49
[2020-09-25 07:46:48,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 07:46:48,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 483
[2020-09-25 07:46:48,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:48,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:48,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 07:46:48,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11
[2020-09-25 07:46:48,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20
[2020-09-25 07:46:48,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:48,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 07:46:48,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:48,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:48,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:48,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:46:48,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:48,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 07:46:48,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:48,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:48,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:46:48,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:46:48,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:46:48,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:48,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-09-25 07:46:48,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:48,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:48,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:48,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34
[2020-09-25 07:46:48,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:48,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98
[2020-09-25 07:46:48,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:48,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:48,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 07:46:48,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-25 07:46:48,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30
[2020-09-25 07:46:48,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:48,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:46:48,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:48,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:48,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:48,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23
[2020-09-25 07:46:48,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:48,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45
[2020-09-25 07:46:48,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:48,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:48,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-25 07:46:48,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:46:48,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20
[2020-09-25 07:46:48,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:48,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:46:48,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:48,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:48,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:48,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 07:46:48,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:48,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13
[2020-09-25 07:46:48,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:48,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:48,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 07:46:48,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:46:48,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-25 07:46:48,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:48,956 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2020-09-25 07:46:48,957 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1123327786]
[2020-09-25 07:46:48,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 07:46:48,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8
[2020-09-25 07:46:48,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426512012]
[2020-09-25 07:46:48,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-25 07:46:48,958 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 07:46:48,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-25 07:46:48,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2020-09-25 07:46:48,959 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 8 states.
[2020-09-25 07:46:49,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 07:46:49,044 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions.
[2020-09-25 07:46:49,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2020-09-25 07:46:49,045 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 36
[2020-09-25 07:46:49,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 07:46:49,046 INFO L225 Difference]: With dead ends: 41
[2020-09-25 07:46:49,046 INFO L226 Difference]: Without dead ends: 35
[2020-09-25 07:46:49,047 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110
[2020-09-25 07:46:49,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states.
[2020-09-25 07:46:49,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35.
[2020-09-25 07:46:49,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states.
[2020-09-25 07:46:49,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions.
[2020-09-25 07:46:49,055 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 36
[2020-09-25 07:46:49,055 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 07:46:49,055 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions.
[2020-09-25 07:46:49,055 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-25 07:46:49,055 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions.
[2020-09-25 07:46:49,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46
[2020-09-25 07:46:49,057 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 07:46:49,057 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 07:46:49,057 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 07:46:49,058 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 07:46:49,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 07:46:49,058 INFO L82 PathProgramCache]: Analyzing trace with hash -1021564803, now seen corresponding path program 3 times
[2020-09-25 07:46:49,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 07:46:49,059 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [442871119]
[2020-09-25 07:46:49,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 07:46:49,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:49,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:49,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:49,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:49,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60
[2020-09-25 07:46:49,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 07:46:49,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 783
[2020-09-25 07:46:49,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:49,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:49,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10
[2020-09-25 07:46:49,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11
[2020-09-25 07:46:49,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26
[2020-09-25 07:46:49,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:49,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 07:46:49,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:49,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:49,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:49,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:46:49,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:49,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 07:46:49,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:49,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:49,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:46:49,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:46:49,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:46:49,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:49,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-09-25 07:46:49,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:49,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:50,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:50,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45
[2020-09-25 07:46:50,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:50,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142
[2020-09-25 07:46:50,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:50,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:50,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10
[2020-09-25 07:46:50,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-25 07:46:50,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41
[2020-09-25 07:46:50,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:50,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:46:50,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:50,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:50,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:50,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34
[2020-09-25 07:46:50,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:50,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116
[2020-09-25 07:46:50,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:50,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:50,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-09-25 07:46:50,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:46:50,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31
[2020-09-25 07:46:50,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:50,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:46:50,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:50,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:50,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:50,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23
[2020-09-25 07:46:50,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:50,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49
[2020-09-25 07:46:50,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:50,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:50,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-25 07:46:50,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:46:50,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20
[2020-09-25 07:46:50,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:50,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:46:50,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:50,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:50,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:50,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 07:46:50,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:50,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12
[2020-09-25 07:46:50,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:50,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:50,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 07:46:50,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:46:50,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-25 07:46:50,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:50,317 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked.
[2020-09-25 07:46:50,317 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [442871119]
[2020-09-25 07:46:50,317 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 07:46:50,318 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9
[2020-09-25 07:46:50,318 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731595304]
[2020-09-25 07:46:50,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-25 07:46:50,319 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 07:46:50,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-25 07:46:50,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72
[2020-09-25 07:46:50,320 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand 9 states.
[2020-09-25 07:46:50,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 07:46:50,403 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions.
[2020-09-25 07:46:50,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2020-09-25 07:46:50,404 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 45
[2020-09-25 07:46:50,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 07:46:50,405 INFO L225 Difference]: With dead ends: 46
[2020-09-25 07:46:50,405 INFO L226 Difference]: Without dead ends: 40
[2020-09-25 07:46:50,406 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156
[2020-09-25 07:46:50,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states.
[2020-09-25 07:46:50,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40.
[2020-09-25 07:46:50,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states.
[2020-09-25 07:46:50,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions.
[2020-09-25 07:46:50,413 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 45
[2020-09-25 07:46:50,414 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 07:46:50,414 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions.
[2020-09-25 07:46:50,414 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-09-25 07:46:50,414 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions.
[2020-09-25 07:46:50,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55
[2020-09-25 07:46:50,415 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 07:46:50,416 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 07:46:50,416 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-09-25 07:46:50,416 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 07:46:50,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 07:46:50,416 INFO L82 PathProgramCache]: Analyzing trace with hash -263249715, now seen corresponding path program 4 times
[2020-09-25 07:46:50,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 07:46:50,417 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [771289935]
[2020-09-25 07:46:50,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 07:46:50,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:50,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:50,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:51,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:51,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71
[2020-09-25 07:46:51,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 07:46:51,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1118
[2020-09-25 07:46:51,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:51,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:51,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12
[2020-09-25 07:46:51,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11
[2020-09-25 07:46:51,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32
[2020-09-25 07:46:51,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:51,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 07:46:51,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:51,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:51,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:51,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:46:51,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:51,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 07:46:51,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:51,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:51,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:46:51,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:46:51,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:46:51,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:51,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-09-25 07:46:51,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:51,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:51,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:51,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56
[2020-09-25 07:46:51,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:51,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 212
[2020-09-25 07:46:51,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:51,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:51,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12
[2020-09-25 07:46:51,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-25 07:46:51,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52
[2020-09-25 07:46:51,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:51,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:46:51,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:51,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:51,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:51,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45
[2020-09-25 07:46:51,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:51,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159
[2020-09-25 07:46:51,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:51,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:51,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11
[2020-09-25 07:46:51,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:46:51,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42
[2020-09-25 07:46:51,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:52,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:46:52,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:52,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:52,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:52,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34
[2020-09-25 07:46:52,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:52,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91
[2020-09-25 07:46:52,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:52,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:52,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-09-25 07:46:52,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:46:52,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31
[2020-09-25 07:46:52,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-25 07:46:52,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:46:52,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:52,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:52,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:52,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23
[2020-09-25 07:46:52,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:52,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50
[2020-09-25 07:46:52,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:52,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:52,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-25 07:46:52,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:46:52,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20
[2020-09-25 07:46:52,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:52,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:46:52,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:52,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:52,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:52,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 07:46:52,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:52,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21
[2020-09-25 07:46:52,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:52,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:52,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 07:46:52,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:46:52,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-25 07:46:52,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:52,283 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked.
[2020-09-25 07:46:52,283 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [771289935]
[2020-09-25 07:46:52,284 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 07:46:52,284 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9
[2020-09-25 07:46:52,284 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646118058]
[2020-09-25 07:46:52,285 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-25 07:46:52,285 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 07:46:52,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-25 07:46:52,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72
[2020-09-25 07:46:52,286 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand 9 states.
[2020-09-25 07:46:52,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 07:46:52,423 INFO L93 Difference]: Finished difference Result 51 states and 52 transitions.
[2020-09-25 07:46:52,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2020-09-25 07:46:52,424 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 54
[2020-09-25 07:46:52,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 07:46:52,425 INFO L225 Difference]: With dead ends: 51
[2020-09-25 07:46:52,425 INFO L226 Difference]: Without dead ends: 45
[2020-09-25 07:46:52,426 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182
[2020-09-25 07:46:52,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states.
[2020-09-25 07:46:52,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45.
[2020-09-25 07:46:52,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states.
[2020-09-25 07:46:52,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions.
[2020-09-25 07:46:52,433 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 54
[2020-09-25 07:46:52,433 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 07:46:52,434 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions.
[2020-09-25 07:46:52,434 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-09-25 07:46:52,434 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions.
[2020-09-25 07:46:52,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2020-09-25 07:46:52,435 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 07:46:52,436 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 07:46:52,436 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-09-25 07:46:52,436 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 07:46:52,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 07:46:52,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1884999187, now seen corresponding path program 5 times
[2020-09-25 07:46:52,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 07:46:52,437 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [466176310]
[2020-09-25 07:46:52,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 07:46:52,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:52,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:52,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:54,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:54,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82
[2020-09-25 07:46:54,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 07:46:54,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1579
[2020-09-25 07:46:54,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:54,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:54,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14
[2020-09-25 07:46:54,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11
[2020-09-25 07:46:54,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38
[2020-09-25 07:46:54,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:46:54,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 07:46:54,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:54,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:54,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:54,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:46:54,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:54,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 07:46:54,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:54,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:54,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:46:54,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:46:54,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:46:54,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:46:54,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-09-25 07:46:54,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:54,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:54,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:54,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67
[2020-09-25 07:46:54,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:54,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 287
[2020-09-25 07:46:54,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:54,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:54,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14
[2020-09-25 07:46:54,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-25 07:46:54,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63
[2020-09-25 07:46:54,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:54,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:46:54,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:54,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:54,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:54,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56
[2020-09-25 07:46:54,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:54,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 246
[2020-09-25 07:46:54,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:54,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:54,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13
[2020-09-25 07:46:54,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:46:54,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53
[2020-09-25 07:46:54,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:54,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:46:54,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:54,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:54,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:54,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45
[2020-09-25 07:46:54,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:54,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179
[2020-09-25 07:46:54,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:54,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:54,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11
[2020-09-25 07:46:54,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:46:54,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42
[2020-09-25 07:46:54,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:54,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:46:54,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:54,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:54,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:54,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34
[2020-09-25 07:46:54,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:54,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86
[2020-09-25 07:46:54,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:54,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:54,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-09-25 07:46:54,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:46:54,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31
[2020-09-25 07:46:54,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:55,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:46:55,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:55,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:55,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:55,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23
[2020-09-25 07:46:55,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:55,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47
[2020-09-25 07:46:55,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:55,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:55,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-25 07:46:55,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:46:55,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20
[2020-09-25 07:46:55,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:55,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:46:55,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:55,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:55,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:55,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 07:46:55,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:55,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-25 07:46:55,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:55,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:55,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 07:46:55,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:46:55,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-25 07:46:55,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:55,127 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked.
[2020-09-25 07:46:55,128 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [466176310]
[2020-09-25 07:46:55,130 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 07:46:55,130 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11
[2020-09-25 07:46:55,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971022718]
[2020-09-25 07:46:55,132 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states
[2020-09-25 07:46:55,132 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 07:46:55,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2020-09-25 07:46:55,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110
[2020-09-25 07:46:55,133 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand 11 states.
[2020-09-25 07:46:55,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 07:46:55,283 INFO L93 Difference]: Finished difference Result 56 states and 57 transitions.
[2020-09-25 07:46:55,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2020-09-25 07:46:55,283 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 63
[2020-09-25 07:46:55,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 07:46:55,285 INFO L225 Difference]: With dead ends: 56
[2020-09-25 07:46:55,285 INFO L226 Difference]: Without dead ends: 50
[2020-09-25 07:46:55,286 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272
[2020-09-25 07:46:55,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states.
[2020-09-25 07:46:55,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50.
[2020-09-25 07:46:55,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states.
[2020-09-25 07:46:55,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions.
[2020-09-25 07:46:55,293 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 63
[2020-09-25 07:46:55,294 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 07:46:55,294 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions.
[2020-09-25 07:46:55,294 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states.
[2020-09-25 07:46:55,294 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions.
[2020-09-25 07:46:55,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73
[2020-09-25 07:46:55,295 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 07:46:55,296 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 07:46:55,296 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2020-09-25 07:46:55,296 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 07:46:55,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 07:46:55,297 INFO L82 PathProgramCache]: Analyzing trace with hash -441437769, now seen corresponding path program 6 times
[2020-09-25 07:46:55,297 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 07:46:55,297 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [805945604]
[2020-09-25 07:46:55,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 07:46:55,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:55,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:55,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:57,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:57,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93
[2020-09-25 07:46:57,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 07:46:57,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1739
[2020-09-25 07:46:57,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:57,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:57,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 07:46:57,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11
[2020-09-25 07:46:57,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44
[2020-09-25 07:46:57,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:57,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 07:46:57,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:57,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:57,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:57,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:46:57,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:57,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 07:46:57,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:57,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:57,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:46:57,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:46:57,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:46:57,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:57,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-09-25 07:46:57,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:57,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:57,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:57,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78
[2020-09-25 07:46:57,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:57,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 359
[2020-09-25 07:46:57,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:57,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:57,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 07:46:57,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-25 07:46:57,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74
[2020-09-25 07:46:57,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:46:57,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:46:57,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:57,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:57,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:57,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67
[2020-09-25 07:46:57,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:57,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 290
[2020-09-25 07:46:57,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:57,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:57,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15
[2020-09-25 07:46:57,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:46:57,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64
[2020-09-25 07:46:57,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:57,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:46:57,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:57,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:58,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:58,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56
[2020-09-25 07:46:58,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:58,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201
[2020-09-25 07:46:58,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:58,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:58,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13
[2020-09-25 07:46:58,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:46:58,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53
[2020-09-25 07:46:58,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:58,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:46:58,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:58,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:58,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:58,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45
[2020-09-25 07:46:58,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:58,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115
[2020-09-25 07:46:58,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:58,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:58,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11
[2020-09-25 07:46:58,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:46:58,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42
[2020-09-25 07:46:58,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:58,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:46:58,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:58,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:58,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:58,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34
[2020-09-25 07:46:58,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:58,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82
[2020-09-25 07:46:58,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:58,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:58,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-09-25 07:46:58,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:46:58,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31
[2020-09-25 07:46:58,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:58,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:46:58,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:58,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:58,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:58,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23
[2020-09-25 07:46:58,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:58,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41
[2020-09-25 07:46:58,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:58,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:58,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-25 07:46:58,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:46:58,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20
[2020-09-25 07:46:58,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:58,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:46:58,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:58,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:58,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:58,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 07:46:58,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:58,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-25 07:46:58,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:58,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:58,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 07:46:58,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:46:58,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-25 07:46:58,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:58,450 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 21 proven. 94 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked.
[2020-09-25 07:46:58,450 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [805945604]
[2020-09-25 07:46:58,451 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 07:46:58,451 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12
[2020-09-25 07:46:58,451 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334465649]
[2020-09-25 07:46:58,452 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states
[2020-09-25 07:46:58,452 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 07:46:58,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2020-09-25 07:46:58,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132
[2020-09-25 07:46:58,453 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand 12 states.
[2020-09-25 07:46:58,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 07:46:58,581 INFO L93 Difference]: Finished difference Result 61 states and 62 transitions.
[2020-09-25 07:46:58,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2020-09-25 07:46:58,582 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 72
[2020-09-25 07:46:58,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 07:46:58,583 INFO L225 Difference]: With dead ends: 61
[2020-09-25 07:46:58,583 INFO L226 Difference]: Without dead ends: 55
[2020-09-25 07:46:58,584 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=222, Unknown=0, NotChecked=0, Total=342
[2020-09-25 07:46:58,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states.
[2020-09-25 07:46:58,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55.
[2020-09-25 07:46:58,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states.
[2020-09-25 07:46:58,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 56 transitions.
[2020-09-25 07:46:58,591 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 56 transitions. Word has length 72
[2020-09-25 07:46:58,592 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 07:46:58,592 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 56 transitions.
[2020-09-25 07:46:58,592 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states.
[2020-09-25 07:46:58,592 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 56 transitions.
[2020-09-25 07:46:58,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2020-09-25 07:46:58,593 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 07:46:58,593 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 07:46:58,594 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2020-09-25 07:46:58,594 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 07:46:58,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 07:46:58,594 INFO L82 PathProgramCache]: Analyzing trace with hash 999943849, now seen corresponding path program 7 times
[2020-09-25 07:46:58,594 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 07:46:58,595 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1957420614]
[2020-09-25 07:46:58,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 07:46:58,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:58,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:59,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:00,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:00,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104
[2020-09-25 07:47:00,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 07:47:00,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1817
[2020-09-25 07:47:00,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:00,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:00,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18
[2020-09-25 07:47:00,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11
[2020-09-25 07:47:00,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50
[2020-09-25 07:47:00,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:00,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 07:47:00,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:00,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:00,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:00,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:47:00,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:00,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 07:47:00,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:00,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:00,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:47:00,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:00,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:47:00,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:47:00,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-09-25 07:47:00,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:00,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:00,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:00,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89
[2020-09-25 07:47:00,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:00,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 428
[2020-09-25 07:47:00,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:00,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:00,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18
[2020-09-25 07:47:00,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-25 07:47:00,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85
[2020-09-25 07:47:00,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:00,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:00,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:00,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:01,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:01,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78
[2020-09-25 07:47:01,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:01,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 387
[2020-09-25 07:47:01,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:01,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:01,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17
[2020-09-25 07:47:01,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:01,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75
[2020-09-25 07:47:01,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:01,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:01,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:01,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:01,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:01,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67
[2020-09-25 07:47:01,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:01,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 272
[2020-09-25 07:47:01,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:01,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:01,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15
[2020-09-25 07:47:01,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:01,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64
[2020-09-25 07:47:01,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:01,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:01,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:01,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:01,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:01,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56
[2020-09-25 07:47:01,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:01,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190
[2020-09-25 07:47:01,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:01,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:01,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13
[2020-09-25 07:47:01,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:01,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53
[2020-09-25 07:47:01,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:01,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:01,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:01,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:02,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:02,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45
[2020-09-25 07:47:02,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:02,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132
[2020-09-25 07:47:02,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:02,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:02,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11
[2020-09-25 07:47:02,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:02,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42
[2020-09-25 07:47:02,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:02,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:02,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:02,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:02,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:02,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34
[2020-09-25 07:47:02,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:02,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81
[2020-09-25 07:47:02,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:02,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:02,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-09-25 07:47:02,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:02,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31
[2020-09-25 07:47:02,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:02,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:02,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:02,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:02,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:02,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23
[2020-09-25 07:47:02,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:02,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40
[2020-09-25 07:47:02,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:02,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:02,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-25 07:47:02,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:02,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20
[2020-09-25 07:47:02,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:02,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:02,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:02,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:02,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:02,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 07:47:02,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:02,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13
[2020-09-25 07:47:02,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:02,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:02,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 07:47:02,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:02,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-25 07:47:02,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:02,302 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 24 proven. 137 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked.
[2020-09-25 07:47:02,303 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1957420614]
[2020-09-25 07:47:02,303 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 07:47:02,303 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13
[2020-09-25 07:47:02,303 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211261971]
[2020-09-25 07:47:02,304 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states
[2020-09-25 07:47:02,304 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 07:47:02,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2020-09-25 07:47:02,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156
[2020-09-25 07:47:02,305 INFO L87 Difference]: Start difference. First operand 55 states and 56 transitions. Second operand 13 states.
[2020-09-25 07:47:02,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 07:47:02,485 INFO L93 Difference]: Finished difference Result 66 states and 67 transitions.
[2020-09-25 07:47:02,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2020-09-25 07:47:02,486 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 81
[2020-09-25 07:47:02,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 07:47:02,487 INFO L225 Difference]: With dead ends: 66
[2020-09-25 07:47:02,487 INFO L226 Difference]: Without dead ends: 60
[2020-09-25 07:47:02,488 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=272, Unknown=0, NotChecked=0, Total=420
[2020-09-25 07:47:02,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states.
[2020-09-25 07:47:02,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60.
[2020-09-25 07:47:02,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states.
[2020-09-25 07:47:02,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 61 transitions.
[2020-09-25 07:47:02,495 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 61 transitions. Word has length 81
[2020-09-25 07:47:02,495 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 07:47:02,495 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 61 transitions.
[2020-09-25 07:47:02,496 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states.
[2020-09-25 07:47:02,496 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 61 transitions.
[2020-09-25 07:47:02,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91
[2020-09-25 07:47:02,497 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 07:47:02,497 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 07:47:02,497 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2020-09-25 07:47:02,498 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 07:47:02,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 07:47:02,498 INFO L82 PathProgramCache]: Analyzing trace with hash 1356134305, now seen corresponding path program 8 times
[2020-09-25 07:47:02,498 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 07:47:02,498 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [85144519]
[2020-09-25 07:47:02,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 07:47:02,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:02,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:02,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:05,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:05,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115
[2020-09-25 07:47:05,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 07:47:05,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3312
[2020-09-25 07:47:05,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:05,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:05,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20
[2020-09-25 07:47:05,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11
[2020-09-25 07:47:05,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56
[2020-09-25 07:47:05,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:05,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 07:47:05,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:05,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:05,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:05,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:47:05,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:05,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:47:05,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:05,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:05,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:47:05,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:05,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:47:05,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:05,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-09-25 07:47:05,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:05,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:06,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:06,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100
[2020-09-25 07:47:06,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:06,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 564
[2020-09-25 07:47:06,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:06,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:06,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20
[2020-09-25 07:47:06,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-25 07:47:06,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96
[2020-09-25 07:47:06,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:06,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:06,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:06,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:06,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:06,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89
[2020-09-25 07:47:06,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:06,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 438
[2020-09-25 07:47:06,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:06,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:06,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19
[2020-09-25 07:47:06,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:06,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86
[2020-09-25 07:47:06,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:47:06,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:06,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:07,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:07,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:07,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78
[2020-09-25 07:47:07,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:07,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 344
[2020-09-25 07:47:07,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:07,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:07,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17
[2020-09-25 07:47:07,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:07,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75
[2020-09-25 07:47:07,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:07,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:07,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:07,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:07,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:07,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67
[2020-09-25 07:47:07,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:07,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 291
[2020-09-25 07:47:07,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:07,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:07,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15
[2020-09-25 07:47:07,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:07,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64
[2020-09-25 07:47:07,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:07,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:07,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:07,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:07,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:07,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56
[2020-09-25 07:47:07,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:07,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192
[2020-09-25 07:47:07,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:07,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:07,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13
[2020-09-25 07:47:07,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:07,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53
[2020-09-25 07:47:07,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:07,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:07,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:07,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:08,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:08,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45
[2020-09-25 07:47:08,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:08,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133
[2020-09-25 07:47:08,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:08,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:08,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11
[2020-09-25 07:47:08,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:08,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42
[2020-09-25 07:47:08,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:08,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:08,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:08,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:08,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:08,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34
[2020-09-25 07:47:08,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:08,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78
[2020-09-25 07:47:08,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:08,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:08,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-09-25 07:47:08,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:08,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31
[2020-09-25 07:47:08,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:08,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:08,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:08,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:08,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:08,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23
[2020-09-25 07:47:08,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:08,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40
[2020-09-25 07:47:08,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:08,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:08,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-25 07:47:08,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:08,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20
[2020-09-25 07:47:08,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:08,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:08,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:08,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:08,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:08,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 07:47:08,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:08,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 07:47:08,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:08,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:08,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 07:47:08,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:08,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-25 07:47:08,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 07:47:08,395 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 30 proven. 177 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked.
[2020-09-25 07:47:08,400 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [85144519]
[2020-09-25 07:47:08,401 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 07:47:08,401 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14
[2020-09-25 07:47:08,401 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645072577]
[2020-09-25 07:47:08,402 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states
[2020-09-25 07:47:08,403 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 07:47:08,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2020-09-25 07:47:08,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182
[2020-09-25 07:47:08,403 INFO L87 Difference]: Start difference. First operand 60 states and 61 transitions. Second operand 14 states.
[2020-09-25 07:47:08,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 07:47:08,572 INFO L93 Difference]: Finished difference Result 71 states and 72 transitions.
[2020-09-25 07:47:08,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2020-09-25 07:47:08,573 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 90
[2020-09-25 07:47:08,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 07:47:08,574 INFO L225 Difference]: With dead ends: 71
[2020-09-25 07:47:08,574 INFO L226 Difference]: Without dead ends: 65
[2020-09-25 07:47:08,575 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
[2020-09-25 07:47:08,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states.
[2020-09-25 07:47:08,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65.
[2020-09-25 07:47:08,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states.
[2020-09-25 07:47:08,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 66 transitions.
[2020-09-25 07:47:08,590 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 66 transitions. Word has length 90
[2020-09-25 07:47:08,593 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 07:47:08,594 INFO L479 AbstractCegarLoop]: Abstraction has 65 states and 66 transitions.
[2020-09-25 07:47:08,594 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states.
[2020-09-25 07:47:08,594 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 66 transitions.
[2020-09-25 07:47:08,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100
[2020-09-25 07:47:08,595 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 07:47:08,595 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 07:47:08,595 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2020-09-25 07:47:08,596 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 07:47:08,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 07:47:08,599 INFO L82 PathProgramCache]: Analyzing trace with hash -928437697, now seen corresponding path program 9 times
[2020-09-25 07:47:08,599 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 07:47:08,599 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1615980088]
[2020-09-25 07:47:08,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 07:47:08,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:08,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:09,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:10,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:10,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126
[2020-09-25 07:47:10,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 07:47:10,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2077
[2020-09-25 07:47:10,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:10,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:10,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22
[2020-09-25 07:47:10,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11
[2020-09-25 07:47:10,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62
[2020-09-25 07:47:10,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:47:10,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 07:47:10,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:10,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:10,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:10,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:47:10,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:10,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 07:47:10,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:10,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:10,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:47:10,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:10,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:47:10,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:47:10,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-09-25 07:47:10,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:10,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:11,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:11,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111
[2020-09-25 07:47:11,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:11,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 612
[2020-09-25 07:47:11,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:11,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:11,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22
[2020-09-25 07:47:11,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-25 07:47:11,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107
[2020-09-25 07:47:11,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:47:11,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:11,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:11,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:11,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:11,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100
[2020-09-25 07:47:11,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:11,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 507
[2020-09-25 07:47:11,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:11,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:11,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21
[2020-09-25 07:47:11,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:11,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97
[2020-09-25 07:47:11,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:47:11,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:11,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:11,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:12,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:12,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89
[2020-09-25 07:47:12,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:12,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 400
[2020-09-25 07:47:12,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:12,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:12,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19
[2020-09-25 07:47:12,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:12,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86
[2020-09-25 07:47:12,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:47:12,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:12,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:12,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:12,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:12,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78
[2020-09-25 07:47:12,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:12,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 292
[2020-09-25 07:47:12,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:12,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:12,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17
[2020-09-25 07:47:12,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:12,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75
[2020-09-25 07:47:12,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:47:12,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:12,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:12,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:12,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:12,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67
[2020-09-25 07:47:12,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:12,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220
[2020-09-25 07:47:12,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:12,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:12,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15
[2020-09-25 07:47:12,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:12,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64
[2020-09-25 07:47:12,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:47:12,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:12,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:12,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:13,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:13,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56
[2020-09-25 07:47:13,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:13,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182
[2020-09-25 07:47:13,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:13,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:13,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13
[2020-09-25 07:47:13,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:13,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53
[2020-09-25 07:47:13,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:13,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:13,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:13,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:13,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:13,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45
[2020-09-25 07:47:13,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:13,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107
[2020-09-25 07:47:13,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:13,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:13,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11
[2020-09-25 07:47:13,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:13,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42
[2020-09-25 07:47:13,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:47:13,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:13,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:13,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:13,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:13,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34
[2020-09-25 07:47:13,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:13,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74
[2020-09-25 07:47:13,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:13,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:13,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-09-25 07:47:13,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:13,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31
[2020-09-25 07:47:13,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:47:13,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:13,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:13,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:13,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:13,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23
[2020-09-25 07:47:13,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:13,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33
[2020-09-25 07:47:13,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:13,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:13,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-25 07:47:13,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:13,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20
[2020-09-25 07:47:13,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:47:13,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:13,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:13,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:13,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:13,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 07:47:13,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:13,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 07:47:13,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:13,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:13,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 07:47:13,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:13,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-25 07:47:13,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:13,521 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 24 proven. 244 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked.
[2020-09-25 07:47:13,521 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1615980088]
[2020-09-25 07:47:13,522 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 07:47:13,522 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15
[2020-09-25 07:47:13,522 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167718045]
[2020-09-25 07:47:13,523 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states
[2020-09-25 07:47:13,524 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 07:47:13,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2020-09-25 07:47:13,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210
[2020-09-25 07:47:13,524 INFO L87 Difference]: Start difference. First operand 65 states and 66 transitions. Second operand 15 states.
[2020-09-25 07:47:13,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 07:47:13,669 INFO L93 Difference]: Finished difference Result 76 states and 77 transitions.
[2020-09-25 07:47:13,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2020-09-25 07:47:13,669 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 99
[2020-09-25 07:47:13,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 07:47:13,671 INFO L225 Difference]: With dead ends: 76
[2020-09-25 07:47:13,671 INFO L226 Difference]: Without dead ends: 70
[2020-09-25 07:47:13,673 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=213, Invalid=387, Unknown=0, NotChecked=0, Total=600
[2020-09-25 07:47:13,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states.
[2020-09-25 07:47:13,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70.
[2020-09-25 07:47:13,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states.
[2020-09-25 07:47:13,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 71 transitions.
[2020-09-25 07:47:13,682 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 71 transitions. Word has length 99
[2020-09-25 07:47:13,683 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 07:47:13,684 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 71 transitions.
[2020-09-25 07:47:13,684 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states.
[2020-09-25 07:47:13,684 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 71 transitions.
[2020-09-25 07:47:13,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109
[2020-09-25 07:47:13,686 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 07:47:13,686 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 07:47:13,687 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2020-09-25 07:47:13,687 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 07:47:13,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 07:47:13,687 INFO L82 PathProgramCache]: Analyzing trace with hash -276966773, now seen corresponding path program 10 times
[2020-09-25 07:47:13,687 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 07:47:13,688 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [333668463]
[2020-09-25 07:47:13,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 07:47:13,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:13,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:14,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:18,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:18,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137
[2020-09-25 07:47:18,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 07:47:18,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000
[2020-09-25 07:47:18,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:18,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:18,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50
[2020-09-25 07:47:18,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11
[2020-09-25 07:47:18,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125
[2020-09-25 07:47:18,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:47:18,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 07:47:18,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:18,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:18,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:18,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:47:18,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:18,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 07:47:18,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:18,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:18,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:47:18,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:18,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:47:18,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:47:18,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-09-25 07:47:18,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:18,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:19,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:20,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:20,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122
[2020-09-25 07:47:20,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 07:47:20,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1900
[2020-09-25 07:47:20,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:20,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:20,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 56
[2020-09-25 07:47:20,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:20,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119
[2020-09-25 07:47:20,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:47:20,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:20,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:20,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:22,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:22,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111
[2020-09-25 07:47:22,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:22,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1458
[2020-09-25 07:47:22,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:22,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:22,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 52
[2020-09-25 07:47:22,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:22,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108
[2020-09-25 07:47:22,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:47:22,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:22,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:22,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:23,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:23,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100
[2020-09-25 07:47:23,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:23,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1148
[2020-09-25 07:47:23,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:23,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:23,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47
[2020-09-25 07:47:23,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:23,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97
[2020-09-25 07:47:23,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:47:23,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:23,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:23,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:24,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:24,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89
[2020-09-25 07:47:24,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:24,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1181
[2020-09-25 07:47:24,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:24,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:24,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42
[2020-09-25 07:47:24,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:24,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86
[2020-09-25 07:47:24,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:24,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:24,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:24,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:25,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:25,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78
[2020-09-25 07:47:25,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:25,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 764
[2020-09-25 07:47:25,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:25,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:25,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37
[2020-09-25 07:47:25,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:25,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75
[2020-09-25 07:47:25,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:47:25,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:25,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:25,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:26,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:26,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67
[2020-09-25 07:47:26,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:26,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 520
[2020-09-25 07:47:26,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:26,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:26,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32
[2020-09-25 07:47:26,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:26,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64
[2020-09-25 07:47:26,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:47:26,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:26,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:26,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:26,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:26,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56
[2020-09-25 07:47:26,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:26,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 451
[2020-09-25 07:47:26,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:26,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:26,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27
[2020-09-25 07:47:26,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:26,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53
[2020-09-25 07:47:26,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 07:47:26,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:26,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:26,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:26,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:26,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45
[2020-09-25 07:47:26,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:26,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 292
[2020-09-25 07:47:26,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:26,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:26,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22
[2020-09-25 07:47:26,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:26,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42
[2020-09-25 07:47:26,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:47:26,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:26,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:26,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:27,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:27,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34
[2020-09-25 07:47:27,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:27,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120
[2020-09-25 07:47:27,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:27,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:27,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17
[2020-09-25 07:47:27,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:27,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31
[2020-09-25 07:47:27,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:47:27,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:27,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:27,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:27,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:27,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23
[2020-09-25 07:47:27,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:27,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24
[2020-09-25 07:47:27,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:27,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:27,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12
[2020-09-25 07:47:27,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:27,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20
[2020-09-25 07:47:27,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:47:27,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:27,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:27,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:27,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:27,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 07:47:27,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:27,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12
[2020-09-25 07:47:27,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:27,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:27,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-25 07:47:27,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:27,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-25 07:47:27,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:47:27,201 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 25 proven. 20 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked.
[2020-09-25 07:47:27,201 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [333668463]
[2020-09-25 07:47:27,201 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 07:47:27,201 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10
[2020-09-25 07:47:27,202 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341975993]
[2020-09-25 07:47:27,202 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states
[2020-09-25 07:47:27,202 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 07:47:27,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2020-09-25 07:47:27,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90
[2020-09-25 07:47:27,203 INFO L87 Difference]: Start difference. First operand 70 states and 71 transitions. Second operand 10 states.
[2020-09-25 07:47:27,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 07:47:27,402 INFO L93 Difference]: Finished difference Result 70 states and 71 transitions.
[2020-09-25 07:47:27,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2020-09-25 07:47:27,402 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 108
[2020-09-25 07:47:27,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 07:47:27,403 INFO L225 Difference]: With dead ends: 70
[2020-09-25 07:47:27,403 INFO L226 Difference]: Without dead ends: 0
[2020-09-25 07:47:27,405 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 41 SyntacticMatches, 12 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240
[2020-09-25 07:47:27,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-09-25 07:47:27,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-09-25 07:47:27,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-09-25 07:47:27,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-09-25 07:47:27,406 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 108
[2020-09-25 07:47:27,406 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 07:47:27,406 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-09-25 07:47:27,406 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states.
[2020-09-25 07:47:27,406 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-09-25 07:47:27,406 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-09-25 07:47:27,407 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2020-09-25 07:47:27,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2020-09-25 07:47:27,463 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true
[2020-09-25 07:47:27,463 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed.
[2020-09-25 07:47:27,463 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2020-09-25 07:47:27,463 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true
[2020-09-25 07:47:27,463 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true
[2020-09-25 07:47:27,463 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2020-09-25 07:47:27,463 INFO L268 CegarLoopResult]: For program point sumEXIT(lines 3 9) no Hoare annotation was computed.
[2020-09-25 07:47:27,464 INFO L264 CegarLoopResult]: At program point L7(line 7) the Hoare annotation is: (and (<= |sum_#in~n| sum_~n) (= sum_~m |sum_#in~m|) (<= sum_~n |sum_#in~n|))
[2020-09-25 07:47:27,464 INFO L268 CegarLoopResult]: For program point L7-1(line 7) no Hoare annotation was computed.
[2020-09-25 07:47:27,464 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed.
[2020-09-25 07:47:27,464 INFO L268 CegarLoopResult]: For program point L7-2(line 7) no Hoare annotation was computed.
[2020-09-25 07:47:27,464 INFO L268 CegarLoopResult]: For program point L4(lines 4 8) no Hoare annotation was computed.
[2020-09-25 07:47:27,465 INFO L268 CegarLoopResult]: For program point L7-3(line 7) no Hoare annotation was computed.
[2020-09-25 07:47:27,465 INFO L268 CegarLoopResult]: For program point L3(lines 3 9) no Hoare annotation was computed.
[2020-09-25 07:47:27,465 INFO L268 CegarLoopResult]: For program point sumFINAL(lines 3 9) no Hoare annotation was computed.
[2020-09-25 07:47:27,465 INFO L271 CegarLoopResult]: At program point sumENTRY(lines 3 9) the Hoare annotation is: true
[2020-09-25 07:47:27,465 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed.
[2020-09-25 07:47:27,465 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 11 18) the Hoare annotation is: true
[2020-09-25 07:47:27,465 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 11 18) no Hoare annotation was computed.
[2020-09-25 07:47:27,465 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed.
[2020-09-25 07:47:27,466 INFO L268 CegarLoopResult]: For program point L15(lines 15 17) no Hoare annotation was computed.
[2020-09-25 07:47:27,466 INFO L264 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: (= main_~a~0 10)
[2020-09-25 07:47:27,466 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed.
[2020-09-25 07:47:27,466 INFO L268 CegarLoopResult]: For program point L14-1(line 14) no Hoare annotation was computed.
[2020-09-25 07:47:27,466 INFO L268 CegarLoopResult]: For program point L15-2(lines 11 18) no Hoare annotation was computed.
[2020-09-25 07:47:27,466 INFO L268 CegarLoopResult]: For program point L14-2(line 14) no Hoare annotation was computed.
[2020-09-25 07:47:27,466 INFO L268 CegarLoopResult]: For program point L14-3(line 14) no Hoare annotation was computed.
[2020-09-25 07:47:27,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 07:47:27 BoogieIcfgContainer
[2020-09-25 07:47:27,485 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 07:47:27,488 INFO L168 Benchmark]: Toolchain (without parser) took 41904.27 ms. Allocated memory was 141.6 MB in the beginning and 465.0 MB in the end (delta: 323.5 MB). Free memory was 104.9 MB in the beginning and 263.1 MB in the end (delta: -158.2 MB). Peak memory consumption was 165.3 MB. Max. memory is 7.1 GB.
[2020-09-25 07:47:27,490 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-25 07:47:27,492 INFO L168 Benchmark]: CACSL2BoogieTranslator took 280.30 ms. Allocated memory is still 141.6 MB. Free memory was 104.3 MB in the beginning and 95.1 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB.
[2020-09-25 07:47:27,493 INFO L168 Benchmark]: Boogie Preprocessor took 30.81 ms. Allocated memory is still 141.6 MB. Free memory was 95.1 MB in the beginning and 93.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB.
[2020-09-25 07:47:27,494 INFO L168 Benchmark]: RCFGBuilder took 353.02 ms. Allocated memory was 141.6 MB in the beginning and 204.5 MB in the end (delta: 62.9 MB). Free memory was 93.7 MB in the beginning and 172.1 MB in the end (delta: -78.3 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB.
[2020-09-25 07:47:27,494 INFO L168 Benchmark]: TraceAbstraction took 41227.30 ms. Allocated memory was 204.5 MB in the beginning and 465.0 MB in the end (delta: 260.6 MB). Free memory was 171.4 MB in the beginning and 263.1 MB in the end (delta: -91.7 MB). Peak memory consumption was 168.9 MB. Max. memory is 7.1 GB.
[2020-09-25 07:47:27,503 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.18 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 280.30 ms. Allocated memory is still 141.6 MB. Free memory was 104.3 MB in the beginning and 95.1 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 30.81 ms. Allocated memory is still 141.6 MB. Free memory was 95.1 MB in the beginning and 93.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 353.02 ms. Allocated memory was 141.6 MB in the beginning and 204.5 MB in the end (delta: 62.9 MB). Free memory was 93.7 MB in the beginning and 172.1 MB in the end (delta: -78.3 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 41227.30 ms. Allocated memory was 204.5 MB in the beginning and 465.0 MB in the end (delta: 260.6 MB). Free memory was 171.4 MB in the beginning and 263.1 MB in the end (delta: -91.7 MB). Peak memory consumption was 168.9 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable
For all program executions holds that call of __VERIFIER_error() unreachable at this location
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 41.0s, OverallIterations: 11, TraceHistogramMax: 11, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 195 SDtfs, 507 SDslu, 788 SDs, 0 SdLazy, 458 SolverSat, 66 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 340 GetRequests, 174 SyntacticMatches, 12 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 349 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=70occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 18 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 10 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 38.8s InterpolantComputationTime, 693 NumberOfCodeBlocks, 693 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 682 ConstructedInterpolants, 0 QuantifiedInterpolants, 203230 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 1 PerfectInterpolantSequences, 924/1760 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be correct!
Received shutdown request...