/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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/id_i10_o10-2.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-24 19:20:43,814 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-24 19:20:43,818 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 19:20:43,844 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 19:20:43,845 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 19:20:43,846 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 19:20:43,848 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 19:20:43,850 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 19:20:43,855 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 19:20:43,856 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 19:20:43,857 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 19:20:43,858 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 19:20:43,858 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 19:20:43,862 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 19:20:43,865 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 19:20:43,867 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 19:20:43,868 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 19:20:43,871 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 19:20:43,874 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 19:20:43,875 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 19:20:43,880 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 19:20:43,881 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 19:20:43,883 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 19:20:43,884 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 19:20:43,892 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 19:20:43,892 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 19:20:43,892 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 19:20:43,896 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 19:20:43,897 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 19:20:43,899 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 19:20:43,899 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 19:20:43,900 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 19:20:43,901 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 19:20:43,902 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 19:20:43,912 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 19:20:43,912 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 19:20:43,915 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 19:20:43,916 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 19:20:43,916 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 19:20:43,919 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 19:20:43,920 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 19:20:43,924 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-24 19:20:43,969 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-24 19:20:43,970 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 19:20:43,972 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 19:20:43,972 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-24 19:20:43,973 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-24 19:20:43,973 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 19:20:43,973 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-24 19:20:43,973 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-24 19:20:43,974 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-24 19:20:43,974 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-24 19:20:43,975 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 19:20:43,975 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 19:20:43,975 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 19:20:43,976 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-24 19:20:43,976 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-24 19:20:43,976 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-24 19:20:43,976 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-24 19:20:43,976 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 19:20:43,977 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-24 19:20:43,977 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-24 19:20:43,977 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-24 19:20:43,977 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 19:20:43,978 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 19:20:43,978 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 19:20:43,978 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 19:20:43,978 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-24 19:20:43,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 19:20:43,979 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 19:20:43,979 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-24 19:20:43,979 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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true;
[2020-09-24 19:20:44,460 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 19:20:44,485 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 19:20:44,489 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 19:20:44,492 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-24 19:20:44,492 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-24 19:20:44,494 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_i10_o10-2.c
[2020-09-24 19:20:44,573 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/43f2203c0/acdb71c3f4724cfbbd6691faa438e241/FLAG232298bd8
[2020-09-24 19:20:45,044 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-24 19:20:45,045 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/id_i10_o10-2.c
[2020-09-24 19:20:45,053 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/43f2203c0/acdb71c3f4724cfbbd6691faa438e241/FLAG232298bd8
[2020-09-24 19:20:45,387 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/43f2203c0/acdb71c3f4724cfbbd6691faa438e241
[2020-09-24 19:20:45,400 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 19:20:45,407 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 19:20:45,408 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 19:20:45,408 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 19:20:45,412 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 19:20:45,414 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:20:45" (1/1) ...
[2020-09-24 19:20:45,418 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ab41b77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:20:45, skipping insertion in model container
[2020-09-24 19:20:45,418 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:20:45" (1/1) ...
[2020-09-24 19:20:45,427 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-24 19:20:45,451 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-24 19:20:45,663 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-24 19:20:45,668 INFO L203 MainTranslator]: Completed pre-run
[2020-09-24 19:20:45,686 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-24 19:20:45,700 INFO L208 MainTranslator]: Completed translation
[2020-09-24 19:20:45,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:20:45 WrapperNode
[2020-09-24 19:20:45,700 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 19:20:45,701 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 19:20:45,701 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 19:20:45,702 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 19:20:45,716 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:20:45" (1/1) ...
[2020-09-24 19:20:45,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:20:45" (1/1) ...
[2020-09-24 19:20:45,722 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:20:45" (1/1) ...
[2020-09-24 19:20:45,723 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:20:45" (1/1) ...
[2020-09-24 19:20:45,727 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:20:45" (1/1) ...
[2020-09-24 19:20:45,729 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:20:45" (1/1) ...
[2020-09-24 19:20:45,730 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:20:45" (1/1) ...
[2020-09-24 19:20:45,732 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 19:20:45,732 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 19:20:45,732 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 19:20:45,732 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-24 19:20:45,733 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:20:45" (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
[2020-09-24 19:20:45,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 19:20:45,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 19:20:45,892 INFO L138 BoogieDeclarations]: Found implementation of procedure id
[2020-09-24 19:20:45,892 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 19:20:45,893 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 19:20:45,893 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 19:20:45,893 INFO L130 BoogieDeclarations]: Found specification of procedure id
[2020-09-24 19:20:45,893 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-24 19:20:45,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 19:20:45,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 19:20:46,144 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 19:20:46,144 INFO L295 CfgBuilder]: Removed 0 assume(true) statements.
[2020-09-24 19:20:46,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:20:46 BoogieIcfgContainer
[2020-09-24 19:20:46,150 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 19:20:46,151 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 19:20:46,151 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 19:20:46,155 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-24 19:20:46,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:20:45" (1/3) ...
[2020-09-24 19:20:46,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e01822e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:20:46, skipping insertion in model container
[2020-09-24 19:20:46,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:20:45" (2/3) ...
[2020-09-24 19:20:46,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e01822e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:20:46, skipping insertion in model container
[2020-09-24 19:20:46,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:20:46" (3/3) ...
[2020-09-24 19:20:46,160 INFO L109 eAbstractionObserver]: Analyzing ICFG id_i10_o10-2.c
[2020-09-24 19:20:46,174 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 19:20:46,186 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 19:20:46,211 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 19:20:46,245 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-24 19:20:46,245 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-24 19:20:46,245 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 19:20:46,245 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 19:20:46,246 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 19:20:46,246 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-24 19:20:46,246 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 19:20:46,246 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 19:20:46,271 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states.
[2020-09-24 19:20:46,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2020-09-24 19:20:46,281 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 19:20:46,282 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 19:20:46,283 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 19:20:46,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 19:20:46,291 INFO L82 PathProgramCache]: Analyzing trace with hash 1037734449, now seen corresponding path program 1 times
[2020-09-24 19:20:46,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 19:20:46,302 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [978304749]
[2020-09-24 19:20:46,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 19:20:46,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:46,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:46,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:46,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25
[2020-09-24 19:20:46,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:46,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64
[2020-09-24 19:20:46,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:46,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-24 19:20:46,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11
[2020-09-24 19:20:46,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-24 19:20:46,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-24 19:20:46,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 19:20:46,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:46,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:46,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:46,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 19:20:46,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:46,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-24 19:20:46,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:46,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:20:46,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:20:46,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:20:46,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:20:46,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2020-09-24 19:20:46,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:46,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:46,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:46,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 19:20:46,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:46,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27
[2020-09-24 19:20:46,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:46,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-24 19:20:46,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-24 19:20:46,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 19:20:46,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:20:46,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 19:20:46,656 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [978304749]
[2020-09-24 19:20:46,658 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 19:20:46,658 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-24 19:20:46,659 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586401971]
[2020-09-24 19:20:46,665 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-24 19:20:46,665 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 19:20:46,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-24 19:20:46,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-09-24 19:20:46,682 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 5 states.
[2020-09-24 19:20:46,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 19:20:46,782 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions.
[2020-09-24 19:20:46,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-09-24 19:20:46,784 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16
[2020-09-24 19:20:46,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 19:20:46,797 INFO L225 Difference]: With dead ends: 37
[2020-09-24 19:20:46,797 INFO L226 Difference]: Without dead ends: 23
[2020-09-24 19:20:46,802 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-24 19:20:46,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states.
[2020-09-24 19:20:46,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23.
[2020-09-24 19:20:46,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states.
[2020-09-24 19:20:46,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions.
[2020-09-24 19:20:46,850 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 16
[2020-09-24 19:20:46,851 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 19:20:46,851 INFO L479 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions.
[2020-09-24 19:20:46,851 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-24 19:20:46,852 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions.
[2020-09-24 19:20:46,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2020-09-24 19:20:46,854 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 19:20:46,854 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 19:20:46,855 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 19:20:46,855 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 19:20:46,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 19:20:46,856 INFO L82 PathProgramCache]: Analyzing trace with hash -1478812441, now seen corresponding path program 1 times
[2020-09-24 19:20:46,856 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 19:20:46,856 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [18850595]
[2020-09-24 19:20:46,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 19:20:46,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:46,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:47,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:47,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35
[2020-09-24 19:20:47,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:47,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 240
[2020-09-24 19:20:47,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:47,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-24 19:20:47,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11
[2020-09-24 19:20:47,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11
[2020-09-24 19:20:47,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:20:47,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 19:20:47,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:47,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:47,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:47,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 19:20:47,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:47,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 19:20:47,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:47,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:20:47,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:20:47,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:20:47,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6
[2020-09-24 19:20:47,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2020-09-24 19:20:47,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:47,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:47,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:47,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21
[2020-09-24 19:20:47,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:47,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67
[2020-09-24 19:20:47,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:47,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-24 19:20:47,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-24 19:20:47,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17
[2020-09-24 19:20:47,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:20:47,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:20:47,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:47,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:47,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:47,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 19:20:47,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:47,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16
[2020-09-24 19:20:47,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:47,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 19:20:47,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:20:47,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-24 19:20:47,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:20:47,347 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2020-09-24 19:20:47,347 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [18850595]
[2020-09-24 19:20:47,347 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-24 19:20:47,348 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7
[2020-09-24 19:20:47,348 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633417832]
[2020-09-24 19:20:47,350 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-09-24 19:20:47,350 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 19:20:47,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-09-24 19:20:47,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2020-09-24 19:20:47,351 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 7 states.
[2020-09-24 19:20:47,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 19:20:47,418 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions.
[2020-09-24 19:20:47,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-09-24 19:20:47,419 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24
[2020-09-24 19:20:47,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 19:20:47,421 INFO L225 Difference]: With dead ends: 34
[2020-09-24 19:20:47,421 INFO L226 Difference]: Without dead ends: 28
[2020-09-24 19:20:47,423 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72
[2020-09-24 19:20:47,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states.
[2020-09-24 19:20:47,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28.
[2020-09-24 19:20:47,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states.
[2020-09-24 19:20:47,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions.
[2020-09-24 19:20:47,431 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 24
[2020-09-24 19:20:47,431 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 19:20:47,431 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions.
[2020-09-24 19:20:47,431 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-09-24 19:20:47,431 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions.
[2020-09-24 19:20:47,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33
[2020-09-24 19:20:47,433 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 19:20:47,433 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 19:20:47,434 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 19:20:47,434 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 19:20:47,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 19:20:47,434 INFO L82 PathProgramCache]: Analyzing trace with hash -1463730447, now seen corresponding path program 2 times
[2020-09-24 19:20:47,435 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 19:20:47,435 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1190907058]
[2020-09-24 19:20:47,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 19:20:47,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:47,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:47,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:47,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45
[2020-09-24 19:20:47,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:47,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143
[2020-09-24 19:20:47,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:47,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-24 19:20:47,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11
[2020-09-24 19:20:47,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16
[2020-09-24 19:20:47,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:20:47,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 19:20:47,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:47,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:47,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:47,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 19:20:47,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:47,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 19:20:47,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:47,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:20:47,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:20:47,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:20:47,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:20:47,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2020-09-24 19:20:47,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:47,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:47,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:47,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31
[2020-09-24 19:20:47,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:47,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110
[2020-09-24 19:20:47,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:47,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-24 19:20:47,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-24 19:20:47,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27
[2020-09-24 19:20:47,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:20:47,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:20:47,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:47,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:47,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:47,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21
[2020-09-24 19:20:47,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:47,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57
[2020-09-24 19:20:47,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:47,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-24 19:20:47,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:20:47,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18
[2020-09-24 19:20:47,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:20:47,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:20:47,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:47,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:47,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:47,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 19:20:47,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:47,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-24 19:20:47,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:47,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 19:20:47,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:20:47,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-24 19:20:47,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:20:47,884 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2020-09-24 19:20:47,884 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1190907058]
[2020-09-24 19:20:47,885 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-24 19:20:47,885 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8
[2020-09-24 19:20:47,885 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639645658]
[2020-09-24 19:20:47,886 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-24 19:20:47,886 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 19:20:47,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-24 19:20:47,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2020-09-24 19:20:47,887 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 8 states.
[2020-09-24 19:20:47,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 19:20:47,957 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions.
[2020-09-24 19:20:47,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2020-09-24 19:20:47,958 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32
[2020-09-24 19:20:47,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 19:20:47,959 INFO L225 Difference]: With dead ends: 39
[2020-09-24 19:20:47,960 INFO L226 Difference]: Without dead ends: 33
[2020-09-24 19:20:47,960 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
[2020-09-24 19:20:47,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states.
[2020-09-24 19:20:47,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33.
[2020-09-24 19:20:47,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states.
[2020-09-24 19:20:47,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions.
[2020-09-24 19:20:47,968 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 32
[2020-09-24 19:20:47,969 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 19:20:47,969 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions.
[2020-09-24 19:20:47,969 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-24 19:20:47,969 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions.
[2020-09-24 19:20:47,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2020-09-24 19:20:47,971 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 19:20:47,971 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 19:20:47,971 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 19:20:47,971 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 19:20:47,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 19:20:47,972 INFO L82 PathProgramCache]: Analyzing trace with hash 23346727, now seen corresponding path program 3 times
[2020-09-24 19:20:47,972 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 19:20:47,973 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2019861639]
[2020-09-24 19:20:47,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 19:20:47,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:47,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:48,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:48,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55
[2020-09-24 19:20:48,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:48,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162
[2020-09-24 19:20:48,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:48,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10
[2020-09-24 19:20:48,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11
[2020-09-24 19:20:48,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21
[2020-09-24 19:20:48,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:20:48,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 19:20:48,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:48,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:48,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:48,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 19:20:48,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:48,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 19:20:48,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:48,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:20:48,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:20:48,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:20:48,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:20:48,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2020-09-24 19:20:48,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:48,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:48,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:48,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41
[2020-09-24 19:20:48,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:48,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137
[2020-09-24 19:20:48,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:48,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10
[2020-09-24 19:20:48,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-24 19:20:48,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37
[2020-09-24 19:20:48,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:20:48,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:20:48,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:48,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:48,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:48,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31
[2020-09-24 19:20:48,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:48,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101
[2020-09-24 19:20:48,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:48,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-09-24 19:20:48,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:20:48,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28
[2020-09-24 19:20:48,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:20:48,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:20:48,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:48,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:48,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:48,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21
[2020-09-24 19:20:48,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:48,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48
[2020-09-24 19:20:48,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:48,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-24 19:20:48,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:20:48,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18
[2020-09-24 19:20:48,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:20:48,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:20:48,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:48,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:48,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:48,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 19:20:48,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:48,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 19:20:48,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:48,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 19:20:48,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:20:48,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-24 19:20:48,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:20:48,612 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 23 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2020-09-24 19:20:48,613 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2019861639]
[2020-09-24 19:20:48,613 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-24 19:20:48,613 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10
[2020-09-24 19:20:48,614 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362711541]
[2020-09-24 19:20:48,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states
[2020-09-24 19:20:48,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 19:20:48,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2020-09-24 19:20:48,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90
[2020-09-24 19:20:48,616 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 10 states.
[2020-09-24 19:20:48,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 19:20:48,702 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions.
[2020-09-24 19:20:48,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2020-09-24 19:20:48,703 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 40
[2020-09-24 19:20:48,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 19:20:48,705 INFO L225 Difference]: With dead ends: 44
[2020-09-24 19:20:48,705 INFO L226 Difference]: Without dead ends: 38
[2020-09-24 19:20:48,706 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182
[2020-09-24 19:20:48,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states.
[2020-09-24 19:20:48,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38.
[2020-09-24 19:20:48,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states.
[2020-09-24 19:20:48,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions.
[2020-09-24 19:20:48,714 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 40
[2020-09-24 19:20:48,715 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 19:20:48,715 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions.
[2020-09-24 19:20:48,715 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states.
[2020-09-24 19:20:48,715 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions.
[2020-09-24 19:20:48,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49
[2020-09-24 19:20:48,720 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 19:20:48,720 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 19:20:48,720 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-09-24 19:20:48,720 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 19:20:48,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 19:20:48,722 INFO L82 PathProgramCache]: Analyzing trace with hash -649675855, now seen corresponding path program 4 times
[2020-09-24 19:20:48,723 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 19:20:48,723 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1896069834]
[2020-09-24 19:20:48,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 19:20:48,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:48,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:48,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:48,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65
[2020-09-24 19:20:48,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:48,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228
[2020-09-24 19:20:48,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:48,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12
[2020-09-24 19:20:48,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11
[2020-09-24 19:20:48,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26
[2020-09-24 19:20:48,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:20:48,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 19:20:48,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:48,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:48,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:48,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 19:20:48,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:48,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 19:20:48,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:48,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:20:48,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:20:48,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:20:48,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:20:48,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2020-09-24 19:20:48,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:49,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:49,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:49,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51
[2020-09-24 19:20:49,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:49,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200
[2020-09-24 19:20:49,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:49,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12
[2020-09-24 19:20:49,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-24 19:20:49,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47
[2020-09-24 19:20:49,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:20:49,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:20:49,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:49,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:49,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:49,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41
[2020-09-24 19:20:49,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:49,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157
[2020-09-24 19:20:49,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:49,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11
[2020-09-24 19:20:49,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:20:49,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38
[2020-09-24 19:20:49,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:20:49,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:20:49,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:49,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:49,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:49,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31
[2020-09-24 19:20:49,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:49,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93
[2020-09-24 19:20:49,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:49,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-09-24 19:20:49,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:20:49,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28
[2020-09-24 19:20:49,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:20:49,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:20:49,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:49,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:49,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:49,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21
[2020-09-24 19:20:49,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:49,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48
[2020-09-24 19:20:49,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:49,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-24 19:20:49,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:20:49,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18
[2020-09-24 19:20:49,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:20:49,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:20:49,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:49,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:49,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:49,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 19:20:49,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:49,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 19:20:49,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:49,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 19:20:49,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:20:49,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-24 19:20:49,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:20:49,670 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 6 proven. 39 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked.
[2020-09-24 19:20:49,670 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1896069834]
[2020-09-24 19:20:49,671 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-24 19:20:49,671 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10
[2020-09-24 19:20:49,671 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440861591]
[2020-09-24 19:20:49,672 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states
[2020-09-24 19:20:49,672 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 19:20:49,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2020-09-24 19:20:49,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90
[2020-09-24 19:20:49,674 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 10 states.
[2020-09-24 19:20:49,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 19:20:49,797 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions.
[2020-09-24 19:20:49,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2020-09-24 19:20:49,798 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 48
[2020-09-24 19:20:49,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 19:20:49,799 INFO L225 Difference]: With dead ends: 49
[2020-09-24 19:20:49,799 INFO L226 Difference]: Without dead ends: 43
[2020-09-24 19:20:49,800 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210
[2020-09-24 19:20:49,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states.
[2020-09-24 19:20:49,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43.
[2020-09-24 19:20:49,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states.
[2020-09-24 19:20:49,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions.
[2020-09-24 19:20:49,818 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 48
[2020-09-24 19:20:49,821 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 19:20:49,821 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions.
[2020-09-24 19:20:49,821 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states.
[2020-09-24 19:20:49,825 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions.
[2020-09-24 19:20:49,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57
[2020-09-24 19:20:49,828 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 19:20:49,828 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 19:20:49,832 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-09-24 19:20:49,832 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 19:20:49,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 19:20:49,832 INFO L82 PathProgramCache]: Analyzing trace with hash 899977063, now seen corresponding path program 5 times
[2020-09-24 19:20:49,833 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 19:20:49,834 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [760855429]
[2020-09-24 19:20:49,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 19:20:49,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:49,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:50,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:50,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75
[2020-09-24 19:20:50,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:50,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 336
[2020-09-24 19:20:50,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:50,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14
[2020-09-24 19:20:50,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11
[2020-09-24 19:20:50,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31
[2020-09-24 19:20:50,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-24 19:20:50,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 19:20:50,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:50,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:50,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:50,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 19:20:50,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:50,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 19:20:50,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:50,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:20:50,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:20:50,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:20:50,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:20:50,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2020-09-24 19:20:50,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:50,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:50,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:50,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61
[2020-09-24 19:20:50,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:50,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 266
[2020-09-24 19:20:50,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:50,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14
[2020-09-24 19:20:50,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-24 19:20:50,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57
[2020-09-24 19:20:50,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:20:50,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:20:50,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:50,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:50,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:50,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51
[2020-09-24 19:20:50,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:50,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222
[2020-09-24 19:20:50,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:50,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13
[2020-09-24 19:20:50,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:20:50,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48
[2020-09-24 19:20:50,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:20:50,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:20:50,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:50,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:50,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:50,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41
[2020-09-24 19:20:50,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:50,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147
[2020-09-24 19:20:50,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:50,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11
[2020-09-24 19:20:50,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:20:50,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38
[2020-09-24 19:20:50,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:20:50,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:20:50,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:50,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:51,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:51,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31
[2020-09-24 19:20:51,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:51,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89
[2020-09-24 19:20:51,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:51,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-09-24 19:20:51,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:20:51,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28
[2020-09-24 19:20:51,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:20:51,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:20:51,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:51,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:51,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:51,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21
[2020-09-24 19:20:51,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:51,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48
[2020-09-24 19:20:51,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:51,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-24 19:20:51,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:20:51,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18
[2020-09-24 19:20:51,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:20:51,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:20:51,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:51,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:51,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:51,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 19:20:51,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:51,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 19:20:51,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:51,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 19:20:51,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:20:51,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-24 19:20:51,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:20:51,221 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 5 proven. 68 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked.
[2020-09-24 19:20:51,221 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [760855429]
[2020-09-24 19:20:51,222 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-24 19:20:51,222 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12
[2020-09-24 19:20:51,222 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189285708]
[2020-09-24 19:20:51,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states
[2020-09-24 19:20:51,223 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 19:20:51,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2020-09-24 19:20:51,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132
[2020-09-24 19:20:51,224 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand 12 states.
[2020-09-24 19:20:51,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 19:20:51,394 INFO L93 Difference]: Finished difference Result 54 states and 55 transitions.
[2020-09-24 19:20:51,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2020-09-24 19:20:51,394 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 56
[2020-09-24 19:20:51,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 19:20:51,396 INFO L225 Difference]: With dead ends: 54
[2020-09-24 19:20:51,396 INFO L226 Difference]: Without dead ends: 48
[2020-09-24 19:20:51,397 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=104, Invalid=202, Unknown=0, NotChecked=0, Total=306
[2020-09-24 19:20:51,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states.
[2020-09-24 19:20:51,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48.
[2020-09-24 19:20:51,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states.
[2020-09-24 19:20:51,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 49 transitions.
[2020-09-24 19:20:51,405 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 49 transitions. Word has length 56
[2020-09-24 19:20:51,406 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 19:20:51,406 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 49 transitions.
[2020-09-24 19:20:51,406 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states.
[2020-09-24 19:20:51,406 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 49 transitions.
[2020-09-24 19:20:51,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2020-09-24 19:20:51,408 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 19:20:51,408 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 19:20:51,408 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2020-09-24 19:20:51,409 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 19:20:51,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 19:20:51,409 INFO L82 PathProgramCache]: Analyzing trace with hash 1000802417, now seen corresponding path program 6 times
[2020-09-24 19:20:51,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 19:20:51,410 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1574477371]
[2020-09-24 19:20:51,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 19:20:51,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:51,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:51,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:51,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 19:20:51,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:51,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 391
[2020-09-24 19:20:51,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:51,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-24 19:20:51,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11
[2020-09-24 19:20:51,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36
[2020-09-24 19:20:51,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:20:51,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 19:20:51,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:51,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:51,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:51,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 19:20:51,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:51,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 19:20:51,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:51,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:20:51,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:20:51,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:20:51,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:20:51,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2020-09-24 19:20:51,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:51,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:52,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:52,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71
[2020-09-24 19:20:52,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:52,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 342
[2020-09-24 19:20:52,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:52,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-24 19:20:52,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-24 19:20:52,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67
[2020-09-24 19:20:52,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:20:52,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:20:52,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:52,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:52,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:52,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61
[2020-09-24 19:20:52,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:52,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 273
[2020-09-24 19:20:52,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:52,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15
[2020-09-24 19:20:52,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:20:52,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58
[2020-09-24 19:20:52,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:20:52,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:20:52,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:52,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:52,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:52,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51
[2020-09-24 19:20:52,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:52,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213
[2020-09-24 19:20:52,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:52,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13
[2020-09-24 19:20:52,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:20:52,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48
[2020-09-24 19:20:52,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:20:52,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:20:52,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:52,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:52,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:52,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41
[2020-09-24 19:20:52,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:52,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160
[2020-09-24 19:20:52,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:52,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11
[2020-09-24 19:20:52,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:20:52,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38
[2020-09-24 19:20:52,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:20:52,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:20:52,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:52,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:53,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:53,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31
[2020-09-24 19:20:53,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:53,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88
[2020-09-24 19:20:53,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:53,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-09-24 19:20:53,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:20:53,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28
[2020-09-24 19:20:53,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:20:53,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:20:53,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:53,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:53,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:53,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21
[2020-09-24 19:20:53,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:53,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41
[2020-09-24 19:20:53,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:53,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-24 19:20:53,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:20:53,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18
[2020-09-24 19:20:53,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:20:53,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:20:53,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:53,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:53,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:53,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 19:20:53,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:53,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 19:20:53,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:53,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 19:20:53,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:20:53,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-24 19:20:53,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:20:53,246 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 5 proven. 105 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked.
[2020-09-24 19:20:53,246 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1574477371]
[2020-09-24 19:20:53,246 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-24 19:20:53,247 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13
[2020-09-24 19:20:53,247 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999274523]
[2020-09-24 19:20:53,248 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states
[2020-09-24 19:20:53,248 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 19:20:53,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2020-09-24 19:20:53,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156
[2020-09-24 19:20:53,249 INFO L87 Difference]: Start difference. First operand 48 states and 49 transitions. Second operand 13 states.
[2020-09-24 19:20:53,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 19:20:53,386 INFO L93 Difference]: Finished difference Result 59 states and 60 transitions.
[2020-09-24 19:20:53,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2020-09-24 19:20:53,386 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 64
[2020-09-24 19:20:53,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 19:20:53,388 INFO L225 Difference]: With dead ends: 59
[2020-09-24 19:20:53,388 INFO L226 Difference]: Without dead ends: 53
[2020-09-24 19:20:53,389 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=130, Invalid=250, Unknown=0, NotChecked=0, Total=380
[2020-09-24 19:20:53,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states.
[2020-09-24 19:20:53,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53.
[2020-09-24 19:20:53,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states.
[2020-09-24 19:20:53,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions.
[2020-09-24 19:20:53,396 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 54 transitions. Word has length 64
[2020-09-24 19:20:53,397 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 19:20:53,397 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 54 transitions.
[2020-09-24 19:20:53,397 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states.
[2020-09-24 19:20:53,397 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions.
[2020-09-24 19:20:53,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73
[2020-09-24 19:20:53,399 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 19:20:53,399 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 19:20:53,399 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2020-09-24 19:20:53,399 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 19:20:53,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 19:20:53,400 INFO L82 PathProgramCache]: Analyzing trace with hash 1977618599, now seen corresponding path program 7 times
[2020-09-24 19:20:53,400 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 19:20:53,400 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1762741986]
[2020-09-24 19:20:53,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 19:20:53,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:53,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:53,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:53,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95
[2020-09-24 19:20:53,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:53,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 461
[2020-09-24 19:20:53,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:53,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18
[2020-09-24 19:20:53,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11
[2020-09-24 19:20:53,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41
[2020-09-24 19:20:53,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:20:53,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 19:20:53,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:53,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:53,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:53,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 19:20:53,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:53,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 19:20:53,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:53,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:20:53,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:20:53,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:20:53,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:20:53,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2020-09-24 19:20:53,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:53,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:54,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:54,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81
[2020-09-24 19:20:54,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:54,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 445
[2020-09-24 19:20:54,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:54,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18
[2020-09-24 19:20:54,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-24 19:20:54,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77
[2020-09-24 19:20:54,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:20:54,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:20:54,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:54,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:54,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:54,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71
[2020-09-24 19:20:54,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:54,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 376
[2020-09-24 19:20:54,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:54,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17
[2020-09-24 19:20:54,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:20:54,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68
[2020-09-24 19:20:54,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:20:54,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:20:54,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:54,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:55,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:55,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61
[2020-09-24 19:20:55,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:55,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251
[2020-09-24 19:20:55,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:55,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15
[2020-09-24 19:20:55,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:20:55,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58
[2020-09-24 19:20:55,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:20:55,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:20:55,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:55,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:55,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:55,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51
[2020-09-24 19:20:55,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:55,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184
[2020-09-24 19:20:55,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:55,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13
[2020-09-24 19:20:55,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:20:55,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48
[2020-09-24 19:20:55,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:20:55,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:20:55,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:55,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:55,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:55,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41
[2020-09-24 19:20:55,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:55,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120
[2020-09-24 19:20:55,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:55,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11
[2020-09-24 19:20:55,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:20:55,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38
[2020-09-24 19:20:55,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:20:55,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:20:55,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:55,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:55,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:55,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31
[2020-09-24 19:20:55,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:55,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85
[2020-09-24 19:20:55,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:55,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-09-24 19:20:55,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:20:55,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28
[2020-09-24 19:20:55,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:20:55,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:20:55,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:55,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:55,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:55,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21
[2020-09-24 19:20:55,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:55,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36
[2020-09-24 19:20:55,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:55,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-24 19:20:55,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:20:55,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18
[2020-09-24 19:20:55,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:20:55,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:20:55,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:55,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:55,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:55,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 19:20:55,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:55,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 19:20:55,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:55,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 19:20:55,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:20:55,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-24 19:20:55,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:20:55,731 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 10 proven. 136 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked.
[2020-09-24 19:20:55,731 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1762741986]
[2020-09-24 19:20:55,731 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-24 19:20:55,732 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13
[2020-09-24 19:20:55,732 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057708497]
[2020-09-24 19:20:55,732 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states
[2020-09-24 19:20:55,733 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 19:20:55,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2020-09-24 19:20:55,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156
[2020-09-24 19:20:55,733 INFO L87 Difference]: Start difference. First operand 53 states and 54 transitions. Second operand 13 states.
[2020-09-24 19:20:55,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 19:20:55,909 INFO L93 Difference]: Finished difference Result 64 states and 65 transitions.
[2020-09-24 19:20:55,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2020-09-24 19:20:55,910 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 72
[2020-09-24 19:20:55,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 19:20:55,913 INFO L225 Difference]: With dead ends: 64
[2020-09-24 19:20:55,913 INFO L226 Difference]: Without dead ends: 58
[2020-09-24 19:20:55,915 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
[2020-09-24 19:20:55,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states.
[2020-09-24 19:20:55,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58.
[2020-09-24 19:20:55,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states.
[2020-09-24 19:20:55,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 59 transitions.
[2020-09-24 19:20:55,927 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 59 transitions. Word has length 72
[2020-09-24 19:20:55,929 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 19:20:55,930 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 59 transitions.
[2020-09-24 19:20:55,930 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states.
[2020-09-24 19:20:55,930 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 59 transitions.
[2020-09-24 19:20:55,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81
[2020-09-24 19:20:55,932 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 19:20:55,932 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 19:20:55,934 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2020-09-24 19:20:55,934 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 19:20:55,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 19:20:55,934 INFO L82 PathProgramCache]: Analyzing trace with hash 555623729, now seen corresponding path program 8 times
[2020-09-24 19:20:55,935 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 19:20:55,935 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1935352492]
[2020-09-24 19:20:55,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 19:20:55,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:55,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:56,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:56,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105
[2020-09-24 19:20:56,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:56,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 569
[2020-09-24 19:20:56,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:56,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20
[2020-09-24 19:20:56,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11
[2020-09-24 19:20:56,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46
[2020-09-24 19:20:56,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:20:56,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 19:20:56,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:56,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:56,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:56,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 19:20:56,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:56,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 19:20:56,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:56,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:20:56,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:20:56,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:20:56,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:20:56,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2020-09-24 19:20:56,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:56,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:57,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:57,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91
[2020-09-24 19:20:57,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:57,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 518
[2020-09-24 19:20:57,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:57,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20
[2020-09-24 19:20:57,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-24 19:20:57,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87
[2020-09-24 19:20:57,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:20:57,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:20:57,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:57,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:57,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:57,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81
[2020-09-24 19:20:57,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:57,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 456
[2020-09-24 19:20:57,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:57,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19
[2020-09-24 19:20:57,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:20:57,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78
[2020-09-24 19:20:57,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:20:57,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:20:57,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:57,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:57,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:57,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71
[2020-09-24 19:20:57,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:57,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 337
[2020-09-24 19:20:57,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:57,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17
[2020-09-24 19:20:57,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:20:57,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68
[2020-09-24 19:20:57,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:20:57,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:20:57,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:57,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:58,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:58,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61
[2020-09-24 19:20:58,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:58,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 249
[2020-09-24 19:20:58,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:58,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15
[2020-09-24 19:20:58,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:20:58,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58
[2020-09-24 19:20:58,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:20:58,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:20:58,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:58,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:58,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:58,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51
[2020-09-24 19:20:58,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:58,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183
[2020-09-24 19:20:58,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:58,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13
[2020-09-24 19:20:58,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:20:58,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48
[2020-09-24 19:20:58,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:20:58,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:20:58,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:58,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:58,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:58,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41
[2020-09-24 19:20:58,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:58,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124
[2020-09-24 19:20:58,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:58,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11
[2020-09-24 19:20:58,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:20:58,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38
[2020-09-24 19:20:58,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:20:58,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:20:58,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:58,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:58,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:58,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31
[2020-09-24 19:20:58,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:58,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77
[2020-09-24 19:20:58,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:58,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-09-24 19:20:58,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:20:58,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28
[2020-09-24 19:20:58,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:20:58,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:20:58,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:58,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:58,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:58,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21
[2020-09-24 19:20:58,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:58,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36
[2020-09-24 19:20:58,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:58,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-24 19:20:58,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:20:58,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18
[2020-09-24 19:20:58,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:20:58,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:20:58,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:58,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:58,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:58,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 19:20:58,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:58,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 19:20:58,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:58,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 19:20:58,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:20:58,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-24 19:20:58,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:20:58,885 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 16 proven. 166 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked.
[2020-09-24 19:20:58,886 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1935352492]
[2020-09-24 19:20:58,886 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-24 19:20:58,886 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14
[2020-09-24 19:20:58,886 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306167523]
[2020-09-24 19:20:58,887 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states
[2020-09-24 19:20:58,887 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 19:20:58,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2020-09-24 19:20:58,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182
[2020-09-24 19:20:58,888 INFO L87 Difference]: Start difference. First operand 58 states and 59 transitions. Second operand 14 states.
[2020-09-24 19:20:59,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 19:20:59,072 INFO L93 Difference]: Finished difference Result 69 states and 70 transitions.
[2020-09-24 19:20:59,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2020-09-24 19:20:59,073 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 80
[2020-09-24 19:20:59,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 19:20:59,074 INFO L225 Difference]: With dead ends: 69
[2020-09-24 19:20:59,075 INFO L226 Difference]: Without dead ends: 63
[2020-09-24 19:20:59,076 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
[2020-09-24 19:20:59,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states.
[2020-09-24 19:20:59,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63.
[2020-09-24 19:20:59,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states.
[2020-09-24 19:20:59,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 64 transitions.
[2020-09-24 19:20:59,083 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 64 transitions. Word has length 80
[2020-09-24 19:20:59,084 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 19:20:59,084 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 64 transitions.
[2020-09-24 19:20:59,084 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states.
[2020-09-24 19:20:59,084 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 64 transitions.
[2020-09-24 19:20:59,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89
[2020-09-24 19:20:59,086 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 19:20:59,086 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 19:20:59,086 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2020-09-24 19:20:59,087 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 19:20:59,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 19:20:59,087 INFO L82 PathProgramCache]: Analyzing trace with hash 777699815, now seen corresponding path program 9 times
[2020-09-24 19:20:59,088 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 19:20:59,088 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1291025384]
[2020-09-24 19:20:59,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 19:20:59,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:59,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:59,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:59,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115
[2020-09-24 19:20:59,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:59,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 653
[2020-09-24 19:20:59,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:59,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22
[2020-09-24 19:20:59,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11
[2020-09-24 19:20:59,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51
[2020-09-24 19:20:59,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:20:59,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 19:20:59,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:59,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:20:59,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:20:59,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 19:20:59,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:20:59,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 19:20:59,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:20:59,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:20:59,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:20:59,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:20:59,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:20:59,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2020-09-24 19:20:59,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:20:59,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:21:00,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:21:00,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101
[2020-09-24 19:21:00,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:21:00,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 623
[2020-09-24 19:21:00,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:21:00,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22
[2020-09-24 19:21:00,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-24 19:21:00,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97
[2020-09-24 19:21:00,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:21:00,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:21:00,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:21:00,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:21:00,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:21:00,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91
[2020-09-24 19:21:00,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:21:00,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 495
[2020-09-24 19:21:00,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:21:00,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21
[2020-09-24 19:21:00,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:21:00,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88
[2020-09-24 19:21:00,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:21:00,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:21:00,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:21:01,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:21:01,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:21:01,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81
[2020-09-24 19:21:01,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:21:01,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 394
[2020-09-24 19:21:01,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:21:01,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19
[2020-09-24 19:21:01,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:21:01,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78
[2020-09-24 19:21:01,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:21:01,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:21:01,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:21:01,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:21:01,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:21:01,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71
[2020-09-24 19:21:01,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:21:01,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 328
[2020-09-24 19:21:01,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:21:01,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17
[2020-09-24 19:21:01,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:21:01,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68
[2020-09-24 19:21:01,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:21:01,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:21:01,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:21:01,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:21:02,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:21:02,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61
[2020-09-24 19:21:02,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:21:02,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227
[2020-09-24 19:21:02,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:21:02,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15
[2020-09-24 19:21:02,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:21:02,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58
[2020-09-24 19:21:02,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:21:02,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:21:02,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:21:02,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:21:02,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:21:02,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51
[2020-09-24 19:21:02,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:21:02,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167
[2020-09-24 19:21:02,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:21:02,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13
[2020-09-24 19:21:02,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:21:02,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48
[2020-09-24 19:21:02,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:21:02,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:21:02,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:21:02,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:21:02,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:21:02,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41
[2020-09-24 19:21:02,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:21:02,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98
[2020-09-24 19:21:02,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:21:02,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11
[2020-09-24 19:21:02,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:21:02,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38
[2020-09-24 19:21:02,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:21:02,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:21:02,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:21:02,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:21:02,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:21:02,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31
[2020-09-24 19:21:02,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:21:02,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65
[2020-09-24 19:21:02,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:21:02,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-09-24 19:21:02,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:21:02,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28
[2020-09-24 19:21:02,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:21:02,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:21:02,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:21:02,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:21:02,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:21:02,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21
[2020-09-24 19:21:02,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:21:02,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40
[2020-09-24 19:21:02,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:21:02,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-24 19:21:02,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:21:02,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18
[2020-09-24 19:21:02,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:21:02,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:21:02,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:21:02,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:21:02,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:21:02,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 19:21:02,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:21:02,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 19:21:02,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:21:02,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 19:21:02,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:21:02,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-24 19:21:02,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:21:02,610 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 33 proven. 210 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked.
[2020-09-24 19:21:02,610 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1291025384]
[2020-09-24 19:21:02,611 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-24 19:21:02,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15
[2020-09-24 19:21:02,611 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872793777]
[2020-09-24 19:21:02,613 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states
[2020-09-24 19:21:02,613 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 19:21:02,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2020-09-24 19:21:02,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210
[2020-09-24 19:21:02,614 INFO L87 Difference]: Start difference. First operand 63 states and 64 transitions. Second operand 15 states.
[2020-09-24 19:21:02,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 19:21:02,785 INFO L93 Difference]: Finished difference Result 74 states and 75 transitions.
[2020-09-24 19:21:02,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2020-09-24 19:21:02,786 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 88
[2020-09-24 19:21:02,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 19:21:02,787 INFO L225 Difference]: With dead ends: 74
[2020-09-24 19:21:02,787 INFO L226 Difference]: Without dead ends: 68
[2020-09-24 19:21:02,788 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
[2020-09-24 19:21:02,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states.
[2020-09-24 19:21:02,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68.
[2020-09-24 19:21:02,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states.
[2020-09-24 19:21:02,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 69 transitions.
[2020-09-24 19:21:02,807 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 69 transitions. Word has length 88
[2020-09-24 19:21:02,807 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 19:21:02,807 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 69 transitions.
[2020-09-24 19:21:02,807 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states.
[2020-09-24 19:21:02,807 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 69 transitions.
[2020-09-24 19:21:02,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97
[2020-09-24 19:21:02,808 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 19:21:02,814 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 19:21:02,815 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2020-09-24 19:21:02,815 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 19:21:02,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 19:21:02,815 INFO L82 PathProgramCache]: Analyzing trace with hash 2145915377, now seen corresponding path program 10 times
[2020-09-24 19:21:02,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 19:21:02,816 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1081357881]
[2020-09-24 19:21:02,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 19:21:02,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:21:02,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:21:03,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:21:03,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125
[2020-09-24 19:21:03,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:21:03,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 778
[2020-09-24 19:21:03,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:21:03,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24
[2020-09-24 19:21:03,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67
[2020-09-24 19:21:03,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57
[2020-09-24 19:21:03,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:21:03,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 19:21:03,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:21:03,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:21:03,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:21:03,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 19:21:03,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:21:03,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 19:21:03,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:21:03,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:21:03,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:21:03,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:21:03,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:21:03,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2020-09-24 19:21:03,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:21:03,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:21:04,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:21:04,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111
[2020-09-24 19:21:04,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:21:04,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 709
[2020-09-24 19:21:04,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:21:04,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23
[2020-09-24 19:21:04,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:21:04,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106
[2020-09-24 19:21:04,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:21:04,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:21:04,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:21:04,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:21:05,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:21:05,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101
[2020-09-24 19:21:05,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:21:05,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 651
[2020-09-24 19:21:05,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:21:05,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21
[2020-09-24 19:21:05,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:21:05,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96
[2020-09-24 19:21:05,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:21:05,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:21:05,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:21:05,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:21:05,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:21:05,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91
[2020-09-24 19:21:05,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:21:05,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 441
[2020-09-24 19:21:05,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:21:05,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19
[2020-09-24 19:21:05,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:21:05,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86
[2020-09-24 19:21:05,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:21:05,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:21:05,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:21:05,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:21:06,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:21:06,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81
[2020-09-24 19:21:06,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:21:06,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 380
[2020-09-24 19:21:06,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:21:06,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17
[2020-09-24 19:21:06,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:21:06,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76
[2020-09-24 19:21:06,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:21:06,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:21:06,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:21:06,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:21:06,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:21:06,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71
[2020-09-24 19:21:06,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:21:06,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 328
[2020-09-24 19:21:06,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:21:06,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15
[2020-09-24 19:21:06,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:21:06,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66
[2020-09-24 19:21:06,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:21:06,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:21:06,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:21:06,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:21:06,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:21:06,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61
[2020-09-24 19:21:06,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:21:06,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213
[2020-09-24 19:21:06,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:21:06,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13
[2020-09-24 19:21:06,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:21:06,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56
[2020-09-24 19:21:06,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:21:06,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:21:06,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:21:06,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:21:07,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:21:07,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51
[2020-09-24 19:21:07,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:21:07,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159
[2020-09-24 19:21:07,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:21:07,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11
[2020-09-24 19:21:07,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:21:07,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46
[2020-09-24 19:21:07,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:21:07,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:21:07,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:21:07,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:21:07,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:21:07,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41
[2020-09-24 19:21:07,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:21:07,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116
[2020-09-24 19:21:07,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:21:07,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-09-24 19:21:07,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:21:07,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36
[2020-09-24 19:21:07,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:21:07,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:21:07,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:21:07,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:21:07,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:21:07,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31
[2020-09-24 19:21:07,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:21:07,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75
[2020-09-24 19:21:07,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:21:07,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-24 19:21:07,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:21:07,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26
[2020-09-24 19:21:07,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:21:07,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:21:07,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:21:07,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:21:07,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:21:07,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21
[2020-09-24 19:21:07,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:21:07,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34
[2020-09-24 19:21:07,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:21:07,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 19:21:07,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:21:07,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16
[2020-09-24 19:21:07,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-24 19:21:07,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:21:07,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:21:07,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:21:07,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:21:07,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 19:21:07,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:21:07,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-24 19:21:07,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:21:07,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3
[2020-09-24 19:21:07,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:21:07,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-24 19:21:07,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:21:07,830 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked.
[2020-09-24 19:21:07,831 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1081357881]
[2020-09-24 19:21:07,832 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-24 19:21:07,832 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25
[2020-09-24 19:21:07,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397642464]
[2020-09-24 19:21:07,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states
[2020-09-24 19:21:07,834 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 19:21:07,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants.
[2020-09-24 19:21:07,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=553, Unknown=0, NotChecked=0, Total=600
[2020-09-24 19:21:07,835 INFO L87 Difference]: Start difference. First operand 68 states and 69 transitions. Second operand 25 states.
[2020-09-24 19:21:08,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 19:21:08,584 INFO L93 Difference]: Finished difference Result 79 states and 80 transitions.
[2020-09-24 19:21:08,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states.
[2020-09-24 19:21:08,585 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 96
[2020-09-24 19:21:08,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 19:21:08,586 INFO L225 Difference]: With dead ends: 79
[2020-09-24 19:21:08,586 INFO L226 Difference]: Without dead ends: 73
[2020-09-24 19:21:08,588 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=91, Invalid=1169, Unknown=0, NotChecked=0, Total=1260
[2020-09-24 19:21:08,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states.
[2020-09-24 19:21:08,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73.
[2020-09-24 19:21:08,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states.
[2020-09-24 19:21:08,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 74 transitions.
[2020-09-24 19:21:08,605 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 74 transitions. Word has length 96
[2020-09-24 19:21:08,605 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 19:21:08,605 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 74 transitions.
[2020-09-24 19:21:08,605 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states.
[2020-09-24 19:21:08,605 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 74 transitions.
[2020-09-24 19:21:08,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105
[2020-09-24 19:21:08,607 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 19:21:08,607 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 19:21:08,607 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2020-09-24 19:21:08,607 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 19:21:08,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 19:21:08,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1180214055, now seen corresponding path program 11 times
[2020-09-24 19:21:08,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 19:21:08,609 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [589222445]
[2020-09-24 19:21:08,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 19:21:08,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:21:08,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:21:08,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:21:09,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:21:09,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135
[2020-09-24 19:21:09,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 19:21:09,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1012
[2020-09-24 19:21:09,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:21:09,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24
[2020-09-24 19:21:09,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11
[2020-09-24 19:21:09,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56
[2020-09-24 19:21:09,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:21:09,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 19:21:09,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:21:09,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:21:09,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:21:09,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 19:21:09,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:21:09,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 19:21:09,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:21:09,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 19:21:09,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:21:09,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 19:21:09,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:21:09,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2020-09-24 19:21:09,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:21:09,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:21:09,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:21:10,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:21:10,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121
[2020-09-24 19:21:10,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 19:21:10,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001
[2020-09-24 19:21:10,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:21:10,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24
[2020-09-24 19:21:10,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-24 19:21:10,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117
[2020-09-24 19:21:10,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:21:10,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:21:10,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:21:10,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:21:11,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:21:11,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:21:11,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111
[2020-09-24 19:21:11,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 19:21:11,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001
[2020-09-24 19:21:11,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:21:11,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23
[2020-09-24 19:21:11,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:21:11,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108
[2020-09-24 19:21:11,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:21:11,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:21:11,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:21:11,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:21:11,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:21:12,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:21:12,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101
[2020-09-24 19:21:12,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 19:21:12,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 841
[2020-09-24 19:21:12,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:21:12,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21
[2020-09-24 19:21:12,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:21:12,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98
[2020-09-24 19:21:12,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:21:12,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:21:12,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:21:12,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:21:12,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:21:13,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:21:13,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91
[2020-09-24 19:21:13,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 19:21:13,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 771
[2020-09-24 19:21:13,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:21:13,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19
[2020-09-24 19:21:13,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:21:13,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88
[2020-09-24 19:21:13,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:21:13,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:21:13,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:21:13,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:21:13,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:21:14,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:21:14,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81
[2020-09-24 19:21:14,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 19:21:14,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 567
[2020-09-24 19:21:14,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:21:14,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17
[2020-09-24 19:21:14,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:21:14,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78
[2020-09-24 19:21:14,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:21:14,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:21:14,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:21:14,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:21:14,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:21:14,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:21:14,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71
[2020-09-24 19:21:14,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 19:21:14,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 603
[2020-09-24 19:21:14,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:21:14,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15
[2020-09-24 19:21:14,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:21:14,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68
[2020-09-24 19:21:14,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:21:14,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:21:14,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:21:14,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:21:14,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:21:15,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:21:15,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61
[2020-09-24 19:21:15,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 19:21:15,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 416
[2020-09-24 19:21:15,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:21:15,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13
[2020-09-24 19:21:15,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:21:15,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58
[2020-09-24 19:21:15,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:21:15,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:21:15,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:21:15,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:21:15,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:21:15,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:21:15,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51
[2020-09-24 19:21:15,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 19:21:15,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 252
[2020-09-24 19:21:15,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:21:15,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11
[2020-09-24 19:21:15,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:21:15,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48
[2020-09-24 19:21:15,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:21:15,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:21:15,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:21:15,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:21:15,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:21:15,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:21:15,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41
[2020-09-24 19:21:15,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 19:21:15,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191
[2020-09-24 19:21:15,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:21:15,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-09-24 19:21:15,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:21:15,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38
[2020-09-24 19:21:15,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:21:15,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:21:15,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:21:15,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:21:15,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:21:15,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:21:15,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31
[2020-09-24 19:21:15,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 19:21:15,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136
[2020-09-24 19:21:15,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:21:15,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-24 19:21:15,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:21:15,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28
[2020-09-24 19:21:15,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:21:15,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:21:15,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:21:15,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:21:15,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:21:16,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:21:16,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21
[2020-09-24 19:21:16,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 19:21:16,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71
[2020-09-24 19:21:16,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:21:16,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 19:21:16,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:21:16,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18
[2020-09-24 19:21:16,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 19:21:16,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 19:21:16,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 19:21:16,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 19:21:16,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000
[2020-09-24 19:21:16,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 19:21:16,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 19:21:16,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 19:21:16,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 19:21:16,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 19:21:16,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 19:21:16,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 19:21:16,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 19:21:16,150 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 22 proven. 296 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked.
[2020-09-24 19:21:16,150 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [589222445]
[2020-09-24 19:21:16,150 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-24 19:21:16,150 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15
[2020-09-24 19:21:16,151 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733231669]
[2020-09-24 19:21:16,153 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states
[2020-09-24 19:21:16,153 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 19:21:16,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2020-09-24 19:21:16,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210
[2020-09-24 19:21:16,154 INFO L87 Difference]: Start difference. First operand 73 states and 74 transitions. Second operand 15 states.
[2020-09-24 19:21:18,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 19:21:18,138 INFO L93 Difference]: Finished difference Result 150 states and 259 transitions.
[2020-09-24 19:21:18,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states.
[2020-09-24 19:21:18,139 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 104
[2020-09-24 19:21:18,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 19:21:18,140 INFO L225 Difference]: With dead ends: 150
[2020-09-24 19:21:18,140 INFO L226 Difference]: Without dead ends: 0
[2020-09-24 19:21:18,143 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 42 SyntacticMatches, 5 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=564, Invalid=1416, Unknown=0, NotChecked=0, Total=1980
[2020-09-24 19:21:18,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-09-24 19:21:18,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-09-24 19:21:18,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-09-24 19:21:18,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-09-24 19:21:18,144 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 104
[2020-09-24 19:21:18,144 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 19:21:18,145 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-09-24 19:21:18,145 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states.
[2020-09-24 19:21:18,145 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-09-24 19:21:18,145 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-09-24 19:21:18,145 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2020-09-24 19:21:18,148 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2020-09-24 19:21:18,495 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 7
[2020-09-24 19:21:18,500 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true
[2020-09-24 19:21:18,500 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed.
[2020-09-24 19:21:18,500 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2020-09-24 19:21:18,500 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true
[2020-09-24 19:21:18,501 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true
[2020-09-24 19:21:18,501 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2020-09-24 19:21:18,501 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed.
[2020-09-24 19:21:18,501 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 9 15) the Hoare annotation is: true
[2020-09-24 19:21:18,501 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 9 15) no Hoare annotation was computed.
[2020-09-24 19:21:18,501 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed.
[2020-09-24 19:21:18,501 INFO L268 CegarLoopResult]: For program point L12(lines 12 14) no Hoare annotation was computed.
[2020-09-24 19:21:18,502 INFO L264 CegarLoopResult]: At program point L11(line 11) the Hoare annotation is: (and (<= 10 main_~input~0) (<= main_~input~0 10))
[2020-09-24 19:21:18,502 INFO L268 CegarLoopResult]: For program point L11-1(line 11) no Hoare annotation was computed.
[2020-09-24 19:21:18,503 INFO L268 CegarLoopResult]: For program point L12-2(lines 9 15) no Hoare annotation was computed.
[2020-09-24 19:21:18,503 INFO L268 CegarLoopResult]: For program point L11-2(line 11) no Hoare annotation was computed.
[2020-09-24 19:21:18,503 INFO L268 CegarLoopResult]: For program point L11-3(line 11) no Hoare annotation was computed.
[2020-09-24 19:21:18,503 INFO L268 CegarLoopResult]: For program point idFINAL(lines 4 7) no Hoare annotation was computed.
[2020-09-24 19:21:18,503 INFO L268 CegarLoopResult]: For program point idEXIT(lines 4 7) no Hoare annotation was computed.
[2020-09-24 19:21:18,503 INFO L271 CegarLoopResult]: At program point idENTRY(lines 4 7) the Hoare annotation is: true
[2020-09-24 19:21:18,503 INFO L264 CegarLoopResult]: At program point L6(line 6) the Hoare annotation is: (and (= |id_#in~x| id_~x) (not (= |id_#in~x| 0)))
[2020-09-24 19:21:18,504 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed.
[2020-09-24 19:21:18,504 INFO L268 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed.
[2020-09-24 19:21:18,504 INFO L268 CegarLoopResult]: For program point L5-1(line 5) no Hoare annotation was computed.
[2020-09-24 19:21:18,504 INFO L268 CegarLoopResult]: For program point L6-2(line 6) no Hoare annotation was computed.
[2020-09-24 19:21:18,504 INFO L268 CegarLoopResult]: For program point L6-3(line 6) no Hoare annotation was computed.
[2020-09-24 19:21:18,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 07:21:18 BoogieIcfgContainer
[2020-09-24 19:21:18,515 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 19:21:18,526 INFO L168 Benchmark]: Toolchain (without parser) took 33114.70 ms. Allocated memory was 136.3 MB in the beginning and 476.1 MB in the end (delta: 339.7 MB). Free memory was 99.6 MB in the beginning and 104.7 MB in the end (delta: -5.1 MB). Peak memory consumption was 334.7 MB. Max. memory is 7.1 GB.
[2020-09-24 19:21:18,529 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 136.3 MB. Free memory was 117.9 MB in the beginning and 117.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-24 19:21:18,529 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.82 ms. Allocated memory is still 136.3 MB. Free memory was 98.9 MB in the beginning and 89.8 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB.
[2020-09-24 19:21:18,530 INFO L168 Benchmark]: Boogie Preprocessor took 30.40 ms. Allocated memory is still 136.3 MB. Free memory was 89.8 MB in the beginning and 88.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB.
[2020-09-24 19:21:18,534 INFO L168 Benchmark]: RCFGBuilder took 418.09 ms. Allocated memory was 136.3 MB in the beginning and 198.7 MB in the end (delta: 62.4 MB). Free memory was 88.4 MB in the beginning and 166.0 MB in the end (delta: -77.6 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB.
[2020-09-24 19:21:18,536 INFO L168 Benchmark]: TraceAbstraction took 32363.56 ms. Allocated memory was 198.7 MB in the beginning and 476.1 MB in the end (delta: 277.3 MB). Free memory was 166.0 MB in the beginning and 104.7 MB in the end (delta: 61.3 MB). Peak memory consumption was 338.6 MB. Max. memory is 7.1 GB.
[2020-09-24 19:21:18,542 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.26 ms. Allocated memory is still 136.3 MB. Free memory was 117.9 MB in the beginning and 117.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 292.82 ms. Allocated memory is still 136.3 MB. Free memory was 98.9 MB in the beginning and 89.8 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 30.40 ms. Allocated memory is still 136.3 MB. Free memory was 89.8 MB in the beginning and 88.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 418.09 ms. Allocated memory was 136.3 MB in the beginning and 198.7 MB in the end (delta: 62.4 MB). Free memory was 88.4 MB in the beginning and 166.0 MB in the end (delta: -77.6 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 32363.56 ms. Allocated memory was 198.7 MB in the beginning and 476.1 MB in the end (delta: 277.3 MB). Free memory was 166.0 MB in the beginning and 104.7 MB in the end (delta: 61.3 MB). Peak memory consumption was 338.6 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 13]: 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, 25 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 31.9s, OverallIterations: 12, TraceHistogramMax: 12, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 284 SDtfs, 750 SDslu, 1730 SDs, 0 SdLazy, 1263 SolverSat, 228 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 420 GetRequests, 196 SyntacticMatches, 5 SemanticMatches, 219 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 824 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred in iteration=11, 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, 12 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 27 PreInvPairs, 27 NumberOfFragments, 20 HoareAnnotationTreeSize, 27 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 909 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 27.1s InterpolantComputationTime, 720 NumberOfCodeBlocks, 720 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 708 ConstructedInterpolants, 0 QuantifiedInterpolants, 166042 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 1 PerfectInterpolantSequences, 725/2024 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...