/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_13.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 05:30:25,795 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:30:25,801 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:30:25,846 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:30:25,846 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:30:25,854 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:30:25,856 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:30:25,860 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:30:25,862 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:30:25,865 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:30:25,866 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:30:25,867 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:30:25,868 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:30:25,871 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:30:25,873 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:30:25,875 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:30:25,876 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:30:25,877 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:30:25,879 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:30:25,887 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:30:25,890 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:30:25,891 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:30:25,892 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:30:25,893 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:30:25,905 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:30:25,905 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:30:25,911 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:30:25,912 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:30:25,912 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:30:25,917 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:30:25,917 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:30:25,918 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:30:25,918 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:30:25,921 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:30:25,922 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:30:25,923 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:30:25,924 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:30:25,924 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:30:25,925 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:30:25,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:30:25,927 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:30:25,928 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 05:30:25,973 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:30:25,973 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:30:25,975 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:30:25,976 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:30:25,976 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:30:25,976 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:30:25,976 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:30:25,977 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:30:25,977 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:30:25,977 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:30:25,978 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:30:25,978 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:30:25,978 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:30:25,979 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:30:25,979 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:30:25,979 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:30:25,980 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:30:25,980 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:30:25,980 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:30:25,980 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:30:25,980 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:30:25,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:30:25,981 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:30:25,981 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:30:25,981 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:30:25,981 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:30:25,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:30:25,982 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:30:25,982 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:30:25,982 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; [2020-09-25 05:30:26,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:30:26,447 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:30:26,452 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:30:26,454 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:30:26,454 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:30:26,455 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_13.cil.c [2020-09-25 05:30:26,550 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a2397f702/a7c380bf66034e50bf0d197e785bc4a2/FLAGd4a86500c [2020-09-25 05:30:27,113 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:30:27,114 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_srvr_13.cil.c [2020-09-25 05:30:27,128 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a2397f702/a7c380bf66034e50bf0d197e785bc4a2/FLAGd4a86500c [2020-09-25 05:30:27,416 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a2397f702/a7c380bf66034e50bf0d197e785bc4a2 [2020-09-25 05:30:27,433 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:30:27,439 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:30:27,443 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:30:27,443 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:30:27,448 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:30:27,449 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:30:27" (1/1) ... [2020-09-25 05:30:27,455 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8bb1121 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:27, skipping insertion in model container [2020-09-25 05:30:27,455 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:30:27" (1/1) ... [2020-09-25 05:30:27,465 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:30:27,540 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:30:27,834 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:30:27,840 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:30:28,030 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:30:28,046 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:30:28,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:28 WrapperNode [2020-09-25 05:30:28,047 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:30:28,048 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:30:28,048 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:30:28,048 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:30:28,063 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:28" (1/1) ... [2020-09-25 05:30:28,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:28" (1/1) ... [2020-09-25 05:30:28,074 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:28" (1/1) ... [2020-09-25 05:30:28,075 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:28" (1/1) ... [2020-09-25 05:30:28,089 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:28" (1/1) ... [2020-09-25 05:30:28,105 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:28" (1/1) ... [2020-09-25 05:30:28,109 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:28" (1/1) ... [2020-09-25 05:30:28,114 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:30:28,114 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:30:28,115 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:30:28,115 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:30:28,116 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:28" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:30:28,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:30:28,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:30:28,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2020-09-25 05:30:28,209 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:30:28,209 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:30:28,209 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 05:30:28,210 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:30:28,210 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-25 05:30:28,210 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2020-09-25 05:30:28,210 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:30:28,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:30:28,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:30:28,473 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 05:30:29,163 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2020-09-25 05:30:29,163 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2020-09-25 05:30:29,182 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:30:29,182 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 05:30:29,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:30:29 BoogieIcfgContainer [2020-09-25 05:30:29,191 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:30:29,193 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:30:29,193 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:30:29,197 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:30:29,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:30:27" (1/3) ... [2020-09-25 05:30:29,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7aaac33a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:30:29, skipping insertion in model container [2020-09-25 05:30:29,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:28" (2/3) ... [2020-09-25 05:30:29,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7aaac33a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:30:29, skipping insertion in model container [2020-09-25 05:30:29,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:30:29" (3/3) ... [2020-09-25 05:30:29,202 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_13.cil.c [2020-09-25 05:30:29,214 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:30:29,225 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:30:29,249 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:30:29,287 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:30:29,288 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:30:29,288 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:30:29,288 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:30:29,288 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:30:29,289 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:30:29,289 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:30:29,289 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:30:29,323 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states. [2020-09-25 05:30:29,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 05:30:29,342 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:29,343 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:30:29,344 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:29,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:29,353 INFO L82 PathProgramCache]: Analyzing trace with hash 1103530067, now seen corresponding path program 1 times [2020-09-25 05:30:29,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:29,365 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1251738413] [2020-09-25 05:30:29,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:29,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:29,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:30,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:30,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:30,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:30,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:30,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-09-25 05:30:30,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:30:30,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1353 [2020-09-25 05:30:30,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:30,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:30,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:30,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 156 [2020-09-25 05:30:30,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:30:30,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 05:30:31,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:31,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:31,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:31,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:31,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:30:31,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:31,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:30:31,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:31,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:31,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:31,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:31,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:31,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:31,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:30:31,124 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1251738413] [2020-09-25 05:30:31,126 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:30:31,127 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 05:30:31,128 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635388959] [2020-09-25 05:30:31,135 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 05:30:31,135 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:31,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 05:30:31,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:30:31,157 INFO L87 Difference]: Start difference. First operand 440 states. Second operand 3 states. [2020-09-25 05:30:31,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:31,594 INFO L93 Difference]: Finished difference Result 801 states and 1062 transitions. [2020-09-25 05:30:31,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 05:30:31,600 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 160 [2020-09-25 05:30:31,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:31,637 INFO L225 Difference]: With dead ends: 801 [2020-09-25 05:30:31,638 INFO L226 Difference]: Without dead ends: 421 [2020-09-25 05:30:31,650 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:30:31,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2020-09-25 05:30:31,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 419. [2020-09-25 05:30:31,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 419 states. [2020-09-25 05:30:31,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 500 transitions. [2020-09-25 05:30:31,783 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 500 transitions. Word has length 160 [2020-09-25 05:30:31,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:31,787 INFO L479 AbstractCegarLoop]: Abstraction has 419 states and 500 transitions. [2020-09-25 05:30:31,788 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 05:30:31,788 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 500 transitions. [2020-09-25 05:30:31,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-25 05:30:31,797 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:31,797 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:30:31,804 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:30:31,804 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:31,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:31,805 INFO L82 PathProgramCache]: Analyzing trace with hash 732761503, now seen corresponding path program 1 times [2020-09-25 05:30:31,805 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:31,806 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2047305844] [2020-09-25 05:30:31,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:31,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:31,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:32,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:32,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:32,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:32,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:32,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 05:30:32,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:30:32,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1126 [2020-09-25 05:30:32,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:32,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:32,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:32,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 160 [2020-09-25 05:30:32,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 05:30:32,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 05:30:33,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:33,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:33,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:33,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:33,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:30:33,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:33,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:30:33,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:33,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:33,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:33,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:33,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:33,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:33,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:30:33,084 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2047305844] [2020-09-25 05:30:33,085 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:30:33,085 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 05:30:33,085 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46659455] [2020-09-25 05:30:33,088 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 05:30:33,088 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:33,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 05:30:33,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:30:33,089 INFO L87 Difference]: Start difference. First operand 419 states and 500 transitions. Second operand 3 states. [2020-09-25 05:30:33,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:33,413 INFO L93 Difference]: Finished difference Result 768 states and 969 transitions. [2020-09-25 05:30:33,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 05:30:33,413 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 165 [2020-09-25 05:30:33,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:33,420 INFO L225 Difference]: With dead ends: 768 [2020-09-25 05:30:33,420 INFO L226 Difference]: Without dead ends: 477 [2020-09-25 05:30:33,423 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:30:33,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2020-09-25 05:30:33,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 473. [2020-09-25 05:30:33,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 473 states. [2020-09-25 05:30:33,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 564 transitions. [2020-09-25 05:30:33,436 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 564 transitions. Word has length 165 [2020-09-25 05:30:33,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:33,438 INFO L479 AbstractCegarLoop]: Abstraction has 473 states and 564 transitions. [2020-09-25 05:30:33,438 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 05:30:33,438 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 564 transitions. [2020-09-25 05:30:33,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-25 05:30:33,444 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:33,445 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:30:33,445 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:30:33,445 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:33,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:33,446 INFO L82 PathProgramCache]: Analyzing trace with hash -296204506, now seen corresponding path program 1 times [2020-09-25 05:30:33,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:33,446 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [246802395] [2020-09-25 05:30:33,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:33,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:33,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:33,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:33,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:33,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:34,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:34,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:35,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:35,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:35,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-09-25 05:30:35,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 05:30:35,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1779 [2020-09-25 05:30:35,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:35,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:35,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:35,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 162 [2020-09-25 05:30:35,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:30:35,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:35,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:35,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:35,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:35,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:35,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:30:35,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:35,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:30:35,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:35,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:35,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:35,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:35,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:35,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:35,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:30:35,319 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [246802395] [2020-09-25 05:30:35,319 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:30:35,320 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 05:30:35,320 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194361657] [2020-09-25 05:30:35,321 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 05:30:35,321 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:35,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 05:30:35,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:30:35,322 INFO L87 Difference]: Start difference. First operand 473 states and 564 transitions. Second operand 3 states. [2020-09-25 05:30:35,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:35,555 INFO L93 Difference]: Finished difference Result 868 states and 1086 transitions. [2020-09-25 05:30:35,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 05:30:35,556 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 166 [2020-09-25 05:30:35,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:35,559 INFO L225 Difference]: With dead ends: 868 [2020-09-25 05:30:35,560 INFO L226 Difference]: Without dead ends: 523 [2020-09-25 05:30:35,561 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:30:35,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2020-09-25 05:30:35,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 501. [2020-09-25 05:30:35,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 501 states. [2020-09-25 05:30:35,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 604 transitions. [2020-09-25 05:30:35,575 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 604 transitions. Word has length 166 [2020-09-25 05:30:35,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:35,576 INFO L479 AbstractCegarLoop]: Abstraction has 501 states and 604 transitions. [2020-09-25 05:30:35,576 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 05:30:35,576 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 604 transitions. [2020-09-25 05:30:35,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-09-25 05:30:35,578 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:35,579 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:30:35,579 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 05:30:35,579 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:35,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:35,580 INFO L82 PathProgramCache]: Analyzing trace with hash -466072829, now seen corresponding path program 1 times [2020-09-25 05:30:35,580 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:35,580 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [36855759] [2020-09-25 05:30:35,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:35,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:35,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:35,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:35,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:35,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:36,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:36,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-09-25 05:30:36,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:30:36,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1124 [2020-09-25 05:30:36,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:36,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:36,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:36,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-09-25 05:30:36,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 05:30:36,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:36,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:36,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:36,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:36,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:36,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:30:36,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:36,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:30:36,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:36,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:36,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:36,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:36,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:36,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:36,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:30:36,801 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [36855759] [2020-09-25 05:30:36,801 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:30:36,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 05:30:36,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066415709] [2020-09-25 05:30:36,802 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 05:30:36,802 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:36,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 05:30:36,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:30:36,803 INFO L87 Difference]: Start difference. First operand 501 states and 604 transitions. Second operand 3 states. [2020-09-25 05:30:36,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:36,888 INFO L93 Difference]: Finished difference Result 1211 states and 1512 transitions. [2020-09-25 05:30:36,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 05:30:36,889 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 169 [2020-09-25 05:30:36,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:36,894 INFO L225 Difference]: With dead ends: 1211 [2020-09-25 05:30:36,894 INFO L226 Difference]: Without dead ends: 850 [2020-09-25 05:30:36,896 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:30:36,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2020-09-25 05:30:36,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 848. [2020-09-25 05:30:36,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 848 states. [2020-09-25 05:30:36,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1041 transitions. [2020-09-25 05:30:36,923 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1041 transitions. Word has length 169 [2020-09-25 05:30:36,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:36,944 INFO L479 AbstractCegarLoop]: Abstraction has 848 states and 1041 transitions. [2020-09-25 05:30:36,944 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 05:30:36,944 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1041 transitions. [2020-09-25 05:30:36,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 05:30:36,948 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:36,948 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:30:36,948 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 05:30:36,948 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:36,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:36,949 INFO L82 PathProgramCache]: Analyzing trace with hash -1669990880, now seen corresponding path program 1 times [2020-09-25 05:30:36,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:36,950 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [97024171] [2020-09-25 05:30:36,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:36,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:36,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:37,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:37,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:37,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:37,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-09-25 05:30:37,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:30:37,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 730 [2020-09-25 05:30:37,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:37,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:37,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:37,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 165 [2020-09-25 05:30:37,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 05:30:37,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:37,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:37,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:37,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:37,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:37,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:30:37,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:37,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:30:37,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:37,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:37,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:37,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:37,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:37,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:30:37,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:30:37,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [97024171] [2020-09-25 05:30:37,767 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:30:37,767 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 05:30:37,767 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617555094] [2020-09-25 05:30:37,768 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 05:30:37,768 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:37,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 05:30:37,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:30:37,769 INFO L87 Difference]: Start difference. First operand 848 states and 1041 transitions. Second operand 3 states. [2020-09-25 05:30:38,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:38,011 INFO L93 Difference]: Finished difference Result 1285 states and 1620 transitions. [2020-09-25 05:30:38,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 05:30:38,011 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 170 [2020-09-25 05:30:38,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:38,018 INFO L225 Difference]: With dead ends: 1285 [2020-09-25 05:30:38,018 INFO L226 Difference]: Without dead ends: 912 [2020-09-25 05:30:38,020 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:30:38,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2020-09-25 05:30:38,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 877. [2020-09-25 05:30:38,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 877 states. [2020-09-25 05:30:38,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1085 transitions. [2020-09-25 05:30:38,050 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1085 transitions. Word has length 170 [2020-09-25 05:30:38,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:38,051 INFO L479 AbstractCegarLoop]: Abstraction has 877 states and 1085 transitions. [2020-09-25 05:30:38,051 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 05:30:38,051 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1085 transitions. [2020-09-25 05:30:38,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-25 05:30:38,054 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:38,054 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:30:38,055 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 05:30:38,055 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:38,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:38,055 INFO L82 PathProgramCache]: Analyzing trace with hash 1758330393, now seen corresponding path program 1 times [2020-09-25 05:30:38,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:38,056 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1833728778] [2020-09-25 05:30:38,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:38,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:38,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:38,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:38,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:38,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:39,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:40,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:40,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-09-25 05:30:40,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:30:40,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1959 [2020-09-25 05:30:40,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:40,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:40,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:40,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 166 [2020-09-25 05:30:40,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 05:30:40,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:40,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:40,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:40,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:40,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:40,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:30:40,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:40,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:30:40,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:40,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:40,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:40,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:40,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:40,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:40,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:30:40,097 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1833728778] [2020-09-25 05:30:40,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:30:40,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 05:30:40,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312147567] [2020-09-25 05:30:40,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 05:30:40,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:40,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 05:30:40,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:30:40,100 INFO L87 Difference]: Start difference. First operand 877 states and 1085 transitions. Second operand 3 states. [2020-09-25 05:30:40,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:40,393 INFO L93 Difference]: Finished difference Result 1726 states and 2218 transitions. [2020-09-25 05:30:40,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 05:30:40,393 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 171 [2020-09-25 05:30:40,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:40,400 INFO L225 Difference]: With dead ends: 1726 [2020-09-25 05:30:40,400 INFO L226 Difference]: Without dead ends: 989 [2020-09-25 05:30:40,403 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:30:40,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 989 states. [2020-09-25 05:30:40,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 989 to 973. [2020-09-25 05:30:40,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 973 states. [2020-09-25 05:30:40,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 973 states to 973 states and 1199 transitions. [2020-09-25 05:30:40,434 INFO L78 Accepts]: Start accepts. Automaton has 973 states and 1199 transitions. Word has length 171 [2020-09-25 05:30:40,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:40,434 INFO L479 AbstractCegarLoop]: Abstraction has 973 states and 1199 transitions. [2020-09-25 05:30:40,435 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 05:30:40,435 INFO L276 IsEmpty]: Start isEmpty. Operand 973 states and 1199 transitions. [2020-09-25 05:30:40,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-25 05:30:40,438 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:40,438 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:30:40,438 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 05:30:40,439 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:40,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:40,439 INFO L82 PathProgramCache]: Analyzing trace with hash 469342649, now seen corresponding path program 1 times [2020-09-25 05:30:40,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:40,440 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1908851248] [2020-09-25 05:30:40,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:40,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:40,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:40,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:40,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:40,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:41,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:42,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:42,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-09-25 05:30:42,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:30:42,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1623 [2020-09-25 05:30:42,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:42,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:42,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:42,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 166 [2020-09-25 05:30:42,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 05:30:42,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:42,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:42,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:42,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:42,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:42,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:30:42,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:42,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:30:42,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:42,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:42,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:42,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:42,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:42,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:42,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:30:42,172 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1908851248] [2020-09-25 05:30:42,172 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:30:42,172 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 05:30:42,173 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229140816] [2020-09-25 05:30:42,174 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 05:30:42,174 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:42,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 05:30:42,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:30:42,175 INFO L87 Difference]: Start difference. First operand 973 states and 1199 transitions. Second operand 3 states. [2020-09-25 05:30:42,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:42,412 INFO L93 Difference]: Finished difference Result 1941 states and 2472 transitions. [2020-09-25 05:30:42,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 05:30:42,413 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 171 [2020-09-25 05:30:42,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:42,422 INFO L225 Difference]: With dead ends: 1941 [2020-09-25 05:30:42,422 INFO L226 Difference]: Without dead ends: 1084 [2020-09-25 05:30:42,425 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:30:42,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1084 states. [2020-09-25 05:30:42,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1084 to 1035. [2020-09-25 05:30:42,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1035 states. [2020-09-25 05:30:42,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1295 transitions. [2020-09-25 05:30:42,460 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1295 transitions. Word has length 171 [2020-09-25 05:30:42,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:42,460 INFO L479 AbstractCegarLoop]: Abstraction has 1035 states and 1295 transitions. [2020-09-25 05:30:42,461 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 05:30:42,461 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1295 transitions. [2020-09-25 05:30:42,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-09-25 05:30:42,464 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:42,464 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:30:42,464 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 05:30:42,465 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:42,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:42,465 INFO L82 PathProgramCache]: Analyzing trace with hash -978509581, now seen corresponding path program 1 times [2020-09-25 05:30:42,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:42,466 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [301248878] [2020-09-25 05:30:42,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:42,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:42,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:42,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:42,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:42,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:43,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:43,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:44,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:44,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 05:30:44,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 05:30:44,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2237 [2020-09-25 05:30:44,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:44,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:44,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:44,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-09-25 05:30:44,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 05:30:44,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:44,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:44,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:44,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:44,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:44,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:30:44,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:44,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:30:44,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:44,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:44,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:44,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:44,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:44,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:44,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:30:44,775 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [301248878] [2020-09-25 05:30:44,775 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:30:44,775 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 05:30:44,775 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840513004] [2020-09-25 05:30:44,776 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 05:30:44,776 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:44,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 05:30:44,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:30:44,777 INFO L87 Difference]: Start difference. First operand 1035 states and 1295 transitions. Second operand 3 states. [2020-09-25 05:30:45,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:45,020 INFO L93 Difference]: Finished difference Result 2111 states and 2724 transitions. [2020-09-25 05:30:45,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 05:30:45,020 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 173 [2020-09-25 05:30:45,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:45,027 INFO L225 Difference]: With dead ends: 2111 [2020-09-25 05:30:45,027 INFO L226 Difference]: Without dead ends: 1192 [2020-09-25 05:30:45,030 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:30:45,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1192 states. [2020-09-25 05:30:45,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1192 to 1101. [2020-09-25 05:30:45,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1101 states. [2020-09-25 05:30:45,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1101 states to 1101 states and 1399 transitions. [2020-09-25 05:30:45,059 INFO L78 Accepts]: Start accepts. Automaton has 1101 states and 1399 transitions. Word has length 173 [2020-09-25 05:30:45,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:45,059 INFO L479 AbstractCegarLoop]: Abstraction has 1101 states and 1399 transitions. [2020-09-25 05:30:45,059 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 05:30:45,059 INFO L276 IsEmpty]: Start isEmpty. Operand 1101 states and 1399 transitions. [2020-09-25 05:30:45,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-09-25 05:30:45,063 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:45,063 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:30:45,063 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 05:30:45,063 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:45,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:45,064 INFO L82 PathProgramCache]: Analyzing trace with hash 310644027, now seen corresponding path program 1 times [2020-09-25 05:30:45,064 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:45,064 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [526858931] [2020-09-25 05:30:45,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:45,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:45,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:45,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:45,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:45,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:45,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:45,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:46,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:47,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:47,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 05:30:47,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 05:30:47,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2679 [2020-09-25 05:30:47,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:47,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:47,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:47,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-25 05:30:47,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:30:47,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:47,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:47,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:47,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:47,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:47,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:30:47,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:47,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:30:47,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:47,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:47,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:47,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:47,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:47,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:47,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:30:47,814 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [526858931] [2020-09-25 05:30:47,814 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:30:47,814 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 05:30:47,815 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232294615] [2020-09-25 05:30:47,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 05:30:47,815 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:47,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 05:30:47,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:30:47,816 INFO L87 Difference]: Start difference. First operand 1101 states and 1399 transitions. Second operand 3 states. [2020-09-25 05:30:48,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:48,092 INFO L93 Difference]: Finished difference Result 2174 states and 2845 transitions. [2020-09-25 05:30:48,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 05:30:48,092 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 173 [2020-09-25 05:30:48,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:48,100 INFO L225 Difference]: With dead ends: 2174 [2020-09-25 05:30:48,100 INFO L226 Difference]: Without dead ends: 1213 [2020-09-25 05:30:48,103 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:30:48,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1213 states. [2020-09-25 05:30:48,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1213 to 1179. [2020-09-25 05:30:48,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1179 states. [2020-09-25 05:30:48,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1179 states to 1179 states and 1499 transitions. [2020-09-25 05:30:48,139 INFO L78 Accepts]: Start accepts. Automaton has 1179 states and 1499 transitions. Word has length 173 [2020-09-25 05:30:48,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:48,139 INFO L479 AbstractCegarLoop]: Abstraction has 1179 states and 1499 transitions. [2020-09-25 05:30:48,140 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 05:30:48,140 INFO L276 IsEmpty]: Start isEmpty. Operand 1179 states and 1499 transitions. [2020-09-25 05:30:48,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-25 05:30:48,146 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:48,146 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:30:48,147 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 05:30:48,147 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:48,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:48,148 INFO L82 PathProgramCache]: Analyzing trace with hash -1230208187, now seen corresponding path program 1 times [2020-09-25 05:30:48,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:48,149 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [705854047] [2020-09-25 05:30:48,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:48,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:48,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:48,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:48,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:48,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:48,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:49,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:49,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-09-25 05:30:49,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:30:49,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1128 [2020-09-25 05:30:49,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:49,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:49,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 05:30:49,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-09-25 05:30:49,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 05:30:49,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:49,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:49,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:49,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:49,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:49,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:30:49,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:49,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:30:49,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:49,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:49,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:49,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:49,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:49,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:49,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:30:49,433 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [705854047] [2020-09-25 05:30:49,433 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:30:49,434 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:30:49,434 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081673435] [2020-09-25 05:30:49,434 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:30:49,435 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:49,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:30:49,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:30:49,435 INFO L87 Difference]: Start difference. First operand 1179 states and 1499 transitions. Second operand 4 states. [2020-09-25 05:30:49,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:49,677 INFO L93 Difference]: Finished difference Result 2365 states and 3029 transitions. [2020-09-25 05:30:49,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 05:30:49,678 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 175 [2020-09-25 05:30:49,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:49,685 INFO L225 Difference]: With dead ends: 2365 [2020-09-25 05:30:49,685 INFO L226 Difference]: Without dead ends: 1326 [2020-09-25 05:30:49,688 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:30:49,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2020-09-25 05:30:49,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 1249. [2020-09-25 05:30:49,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1249 states. [2020-09-25 05:30:49,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1249 states to 1249 states and 1575 transitions. [2020-09-25 05:30:49,726 INFO L78 Accepts]: Start accepts. Automaton has 1249 states and 1575 transitions. Word has length 175 [2020-09-25 05:30:49,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:49,726 INFO L479 AbstractCegarLoop]: Abstraction has 1249 states and 1575 transitions. [2020-09-25 05:30:49,726 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:30:49,727 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states and 1575 transitions. [2020-09-25 05:30:49,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-09-25 05:30:49,730 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:49,730 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:30:49,730 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 05:30:49,731 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:49,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:49,731 INFO L82 PathProgramCache]: Analyzing trace with hash -99229899, now seen corresponding path program 1 times [2020-09-25 05:30:49,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:49,732 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1449068324] [2020-09-25 05:30:49,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:49,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:49,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:49,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:50,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:50,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:50,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:50,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:50,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:53,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:53,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-09-25 05:30:53,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 05:30:53,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4110 [2020-09-25 05:30:53,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:53,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:53,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:53,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 172 [2020-09-25 05:30:53,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 05:30:53,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:53,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:53,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:53,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:53,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:53,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:30:53,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:53,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:30:53,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:53,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:53,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:53,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:53,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:53,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:54,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:30:54,059 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1449068324] [2020-09-25 05:30:54,059 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:30:54,060 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 05:30:54,060 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330243997] [2020-09-25 05:30:54,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 05:30:54,061 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:54,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 05:30:54,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:30:54,061 INFO L87 Difference]: Start difference. First operand 1249 states and 1575 transitions. Second operand 3 states. [2020-09-25 05:30:54,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:54,140 INFO L93 Difference]: Finished difference Result 3363 states and 4301 transitions. [2020-09-25 05:30:54,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 05:30:54,141 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2020-09-25 05:30:54,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:54,152 INFO L225 Difference]: With dead ends: 3363 [2020-09-25 05:30:54,152 INFO L226 Difference]: Without dead ends: 2254 [2020-09-25 05:30:54,156 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:30:54,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2254 states. [2020-09-25 05:30:54,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2254 to 1282. [2020-09-25 05:30:54,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1282 states. [2020-09-25 05:30:54,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 1619 transitions. [2020-09-25 05:30:54,217 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 1619 transitions. Word has length 180 [2020-09-25 05:30:54,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:54,218 INFO L479 AbstractCegarLoop]: Abstraction has 1282 states and 1619 transitions. [2020-09-25 05:30:54,218 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 05:30:54,218 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 1619 transitions. [2020-09-25 05:30:54,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-09-25 05:30:54,222 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:54,222 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:30:54,223 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 05:30:54,223 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:54,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:54,223 INFO L82 PathProgramCache]: Analyzing trace with hash 1893768638, now seen corresponding path program 1 times [2020-09-25 05:30:54,224 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:54,224 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1760234072] [2020-09-25 05:30:54,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:54,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:54,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:54,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:54,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:54,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:54,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 191 [2020-09-25 05:30:54,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:30:54,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 366 [2020-09-25 05:30:54,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:54,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:54,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:30:54,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 05:30:54,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-09-25 05:30:54,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:30:54,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:54,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:54,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:54,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:54,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:30:54,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:54,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:30:54,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:54,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:54,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:54,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:54,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:54,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:30:54,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:30:54,752 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1760234072] [2020-09-25 05:30:54,753 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:30:54,753 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 05:30:54,753 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206332497] [2020-09-25 05:30:54,754 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 05:30:54,754 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:54,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 05:30:54,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:30:54,754 INFO L87 Difference]: Start difference. First operand 1282 states and 1619 transitions. Second operand 7 states. [2020-09-25 05:30:55,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:55,015 INFO L93 Difference]: Finished difference Result 1974 states and 2521 transitions. [2020-09-25 05:30:55,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 05:30:55,016 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 182 [2020-09-25 05:30:55,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:55,020 INFO L225 Difference]: With dead ends: 1974 [2020-09-25 05:30:55,020 INFO L226 Difference]: Without dead ends: 832 [2020-09-25 05:30:55,023 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-09-25 05:30:55,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2020-09-25 05:30:55,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 796. [2020-09-25 05:30:55,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 796 states. [2020-09-25 05:30:55,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 989 transitions. [2020-09-25 05:30:55,057 INFO L78 Accepts]: Start accepts. Automaton has 796 states and 989 transitions. Word has length 182 [2020-09-25 05:30:55,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:55,058 INFO L479 AbstractCegarLoop]: Abstraction has 796 states and 989 transitions. [2020-09-25 05:30:55,058 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 05:30:55,058 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 989 transitions. [2020-09-25 05:30:55,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-25 05:30:55,061 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:55,061 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:30:55,061 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 05:30:55,062 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:55,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:55,062 INFO L82 PathProgramCache]: Analyzing trace with hash 1578833511, now seen corresponding path program 1 times [2020-09-25 05:30:55,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:55,063 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1776226966] [2020-09-25 05:30:55,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:55,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:55,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:55,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:55,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:55,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:55,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-25 05:30:55,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:30:55,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 492 [2020-09-25 05:30:55,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:55,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:55,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:55,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 162 [2020-09-25 05:30:55,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 05:30:55,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:55,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:55,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:55,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:55,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:55,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:30:55,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:55,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:30:55,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:55,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:55,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:55,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:55,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:55,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:55,680 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:30:55,680 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1776226966] [2020-09-25 05:30:55,680 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:30:55,681 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 05:30:55,681 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638067816] [2020-09-25 05:30:55,681 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 05:30:55,682 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:55,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 05:30:55,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:30:55,683 INFO L87 Difference]: Start difference. First operand 796 states and 989 transitions. Second operand 3 states. [2020-09-25 05:30:55,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:55,784 INFO L93 Difference]: Finished difference Result 2065 states and 2636 transitions. [2020-09-25 05:30:55,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 05:30:55,785 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 204 [2020-09-25 05:30:55,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:55,792 INFO L225 Difference]: With dead ends: 2065 [2020-09-25 05:30:55,792 INFO L226 Difference]: Without dead ends: 1425 [2020-09-25 05:30:55,799 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:30:55,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1425 states. [2020-09-25 05:30:55,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1425 to 1423. [2020-09-25 05:30:55,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1423 states. [2020-09-25 05:30:55,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1423 states to 1423 states and 1796 transitions. [2020-09-25 05:30:55,854 INFO L78 Accepts]: Start accepts. Automaton has 1423 states and 1796 transitions. Word has length 204 [2020-09-25 05:30:55,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:55,855 INFO L479 AbstractCegarLoop]: Abstraction has 1423 states and 1796 transitions. [2020-09-25 05:30:55,855 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 05:30:55,855 INFO L276 IsEmpty]: Start isEmpty. Operand 1423 states and 1796 transitions. [2020-09-25 05:30:55,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-09-25 05:30:55,860 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:55,860 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:30:55,860 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 05:30:55,861 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:55,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:55,861 INFO L82 PathProgramCache]: Analyzing trace with hash 1941211029, now seen corresponding path program 1 times [2020-09-25 05:30:55,861 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:55,862 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [317043879] [2020-09-25 05:30:55,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:55,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:55,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:55,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:56,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:56,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:56,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 225 [2020-09-25 05:30:56,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:30:56,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 542 [2020-09-25 05:30:56,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:56,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:56,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:30:56,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 165 [2020-09-25 05:30:56,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 05:30:56,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:56,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:56,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:56,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:56,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:56,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:30:56,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:56,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:30:56,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:56,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:56,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:56,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:56,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:56,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:56,516 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:30:56,516 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [317043879] [2020-09-25 05:30:56,517 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:30:56,517 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 05:30:56,517 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907406487] [2020-09-25 05:30:56,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 05:30:56,518 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:56,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 05:30:56,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:30:56,519 INFO L87 Difference]: Start difference. First operand 1423 states and 1796 transitions. Second operand 5 states. [2020-09-25 05:30:57,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:57,008 INFO L93 Difference]: Finished difference Result 4393 states and 5636 transitions. [2020-09-25 05:30:57,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 05:30:57,008 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 216 [2020-09-25 05:30:57,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:57,022 INFO L225 Difference]: With dead ends: 4393 [2020-09-25 05:30:57,022 INFO L226 Difference]: Without dead ends: 3018 [2020-09-25 05:30:57,026 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-09-25 05:30:57,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3018 states. [2020-09-25 05:30:57,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3018 to 1502. [2020-09-25 05:30:57,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1502 states. [2020-09-25 05:30:57,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 1879 transitions. [2020-09-25 05:30:57,088 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 1879 transitions. Word has length 216 [2020-09-25 05:30:57,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:57,088 INFO L479 AbstractCegarLoop]: Abstraction has 1502 states and 1879 transitions. [2020-09-25 05:30:57,089 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 05:30:57,089 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 1879 transitions. [2020-09-25 05:30:57,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-09-25 05:30:57,094 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:57,095 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:30:57,095 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 05:30:57,095 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:57,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:57,096 INFO L82 PathProgramCache]: Analyzing trace with hash -165389337, now seen corresponding path program 1 times [2020-09-25 05:30:57,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:57,096 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1190707686] [2020-09-25 05:30:57,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:57,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:57,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:57,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:57,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:57,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 241 [2020-09-25 05:30:57,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:30:57,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 412 [2020-09-25 05:30:57,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:57,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:57,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:57,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 190 [2020-09-25 05:30:57,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 05:30:57,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:30:57,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:57,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:57,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:57,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:57,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:30:57,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:57,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:30:57,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:57,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:57,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:57,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:57,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:57,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:57,646 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 05:30:57,646 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1190707686] [2020-09-25 05:30:57,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:30:57,646 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 05:30:57,647 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810762026] [2020-09-25 05:30:57,647 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 05:30:57,647 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:57,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 05:30:57,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:30:57,648 INFO L87 Difference]: Start difference. First operand 1502 states and 1879 transitions. Second operand 3 states. [2020-09-25 05:30:57,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:57,756 INFO L93 Difference]: Finished difference Result 3516 states and 4457 transitions. [2020-09-25 05:30:57,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 05:30:57,757 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 232 [2020-09-25 05:30:57,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:57,767 INFO L225 Difference]: With dead ends: 3516 [2020-09-25 05:30:57,767 INFO L226 Difference]: Without dead ends: 2170 [2020-09-25 05:30:57,770 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:30:57,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2170 states. [2020-09-25 05:30:57,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2170 to 2168. [2020-09-25 05:30:57,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2168 states. [2020-09-25 05:30:57,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2168 states to 2168 states and 2729 transitions. [2020-09-25 05:30:57,840 INFO L78 Accepts]: Start accepts. Automaton has 2168 states and 2729 transitions. Word has length 232 [2020-09-25 05:30:57,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:57,841 INFO L479 AbstractCegarLoop]: Abstraction has 2168 states and 2729 transitions. [2020-09-25 05:30:57,841 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 05:30:57,841 INFO L276 IsEmpty]: Start isEmpty. Operand 2168 states and 2729 transitions. [2020-09-25 05:30:57,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2020-09-25 05:30:57,847 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:57,848 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:30:57,848 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-25 05:30:57,848 INFO L427 AbstractCegarLoop]: === Iteration 16 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:57,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:57,848 INFO L82 PathProgramCache]: Analyzing trace with hash -1624554569, now seen corresponding path program 1 times [2020-09-25 05:30:57,849 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:57,849 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1116878697] [2020-09-25 05:30:57,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:57,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:57,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:57,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:58,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:59,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:59,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-09-25 05:30:59,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:30:59,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1184 [2020-09-25 05:30:59,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:59,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:59,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:59,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 162 [2020-09-25 05:30:59,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 05:30:59,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:59,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:59,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:59,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:59,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:59,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:30:59,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:59,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:30:59,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:59,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:59,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:59,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:59,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:59,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:59,175 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-25 05:30:59,175 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1116878697] [2020-09-25 05:30:59,176 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:30:59,176 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 05:30:59,176 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445485286] [2020-09-25 05:30:59,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 05:30:59,177 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:59,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 05:30:59,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:30:59,178 INFO L87 Difference]: Start difference. First operand 2168 states and 2729 transitions. Second operand 3 states. [2020-09-25 05:30:59,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:59,267 INFO L93 Difference]: Finished difference Result 3570 states and 4516 transitions. [2020-09-25 05:30:59,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 05:30:59,267 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 243 [2020-09-25 05:30:59,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:59,275 INFO L225 Difference]: With dead ends: 3570 [2020-09-25 05:30:59,275 INFO L226 Difference]: Without dead ends: 1558 [2020-09-25 05:30:59,280 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:30:59,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1558 states. [2020-09-25 05:30:59,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1558 to 1558. [2020-09-25 05:30:59,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1558 states. [2020-09-25 05:30:59,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 1946 transitions. [2020-09-25 05:30:59,332 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 1946 transitions. Word has length 243 [2020-09-25 05:30:59,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:59,333 INFO L479 AbstractCegarLoop]: Abstraction has 1558 states and 1946 transitions. [2020-09-25 05:30:59,333 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 05:30:59,333 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 1946 transitions. [2020-09-25 05:30:59,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-09-25 05:30:59,338 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:59,338 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:30:59,339 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-25 05:30:59,339 INFO L427 AbstractCegarLoop]: === Iteration 17 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:59,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:59,339 INFO L82 PathProgramCache]: Analyzing trace with hash -662598379, now seen corresponding path program 1 times [2020-09-25 05:30:59,339 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:59,340 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1739543538] [2020-09-25 05:30:59,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:59,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:59,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:59,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:59,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:59,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-09-25 05:30:59,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:30:59,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 453 [2020-09-25 05:30:59,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:59,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:59,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:30:59,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 193 [2020-09-25 05:30:59,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 05:30:59,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:59,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:59,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:59,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:59,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:59,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:30:59,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:59,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:30:59,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:59,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:59,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:59,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:59,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:59,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:59,924 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 34 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 05:30:59,924 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1739543538] [2020-09-25 05:30:59,925 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:30:59,925 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 05:30:59,925 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422775353] [2020-09-25 05:30:59,926 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 05:30:59,926 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:59,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 05:30:59,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:30:59,927 INFO L87 Difference]: Start difference. First operand 1558 states and 1946 transitions. Second operand 5 states. [2020-09-25 05:31:00,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:31:00,531 INFO L93 Difference]: Finished difference Result 4808 states and 6096 transitions. [2020-09-25 05:31:00,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 05:31:00,532 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 244 [2020-09-25 05:31:00,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:31:00,552 INFO L225 Difference]: With dead ends: 4808 [2020-09-25 05:31:00,552 INFO L226 Difference]: Without dead ends: 3406 [2020-09-25 05:31:00,558 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-09-25 05:31:00,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3406 states. [2020-09-25 05:31:00,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3406 to 1713. [2020-09-25 05:31:00,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1713 states. [2020-09-25 05:31:00,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1713 states to 1713 states and 2125 transitions. [2020-09-25 05:31:00,650 INFO L78 Accepts]: Start accepts. Automaton has 1713 states and 2125 transitions. Word has length 244 [2020-09-25 05:31:00,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:31:00,651 INFO L479 AbstractCegarLoop]: Abstraction has 1713 states and 2125 transitions. [2020-09-25 05:31:00,651 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 05:31:00,651 INFO L276 IsEmpty]: Start isEmpty. Operand 1713 states and 2125 transitions. [2020-09-25 05:31:00,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-09-25 05:31:00,659 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:31:00,659 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:31:00,660 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-25 05:31:00,660 INFO L427 AbstractCegarLoop]: === Iteration 18 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:31:00,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:31:00,661 INFO L82 PathProgramCache]: Analyzing trace with hash 435015861, now seen corresponding path program 1 times [2020-09-25 05:31:00,661 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:31:00,661 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1587703553] [2020-09-25 05:31:00,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:31:00,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:00,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:00,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:00,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:01,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:01,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-09-25 05:31:01,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:31:01,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 395 [2020-09-25 05:31:01,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:01,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:01,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:31:01,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 193 [2020-09-25 05:31:01,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 05:31:01,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:01,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:31:01,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:31:01,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:31:01,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:31:01,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:31:01,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:31:01,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:31:01,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:31:01,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:31:01,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:31:01,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:31:01,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:31:01,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:31:01,174 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 34 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 05:31:01,175 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1587703553] [2020-09-25 05:31:01,175 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:31:01,175 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 05:31:01,175 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41651261] [2020-09-25 05:31:01,176 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 05:31:01,176 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:31:01,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 05:31:01,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:31:01,177 INFO L87 Difference]: Start difference. First operand 1713 states and 2125 transitions. Second operand 5 states. [2020-09-25 05:31:01,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:31:01,666 INFO L93 Difference]: Finished difference Result 5177 states and 6513 transitions. [2020-09-25 05:31:01,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 05:31:01,666 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 244 [2020-09-25 05:31:01,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:31:01,696 INFO L225 Difference]: With dead ends: 5177 [2020-09-25 05:31:01,697 INFO L226 Difference]: Without dead ends: 3560 [2020-09-25 05:31:01,702 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-09-25 05:31:01,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3560 states. [2020-09-25 05:31:01,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3560 to 1772. [2020-09-25 05:31:01,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1772 states. [2020-09-25 05:31:01,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1772 states to 1772 states and 2174 transitions. [2020-09-25 05:31:01,770 INFO L78 Accepts]: Start accepts. Automaton has 1772 states and 2174 transitions. Word has length 244 [2020-09-25 05:31:01,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:31:01,771 INFO L479 AbstractCegarLoop]: Abstraction has 1772 states and 2174 transitions. [2020-09-25 05:31:01,771 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 05:31:01,771 INFO L276 IsEmpty]: Start isEmpty. Operand 1772 states and 2174 transitions. [2020-09-25 05:31:01,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2020-09-25 05:31:01,777 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:31:01,778 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:31:01,778 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-09-25 05:31:01,778 INFO L427 AbstractCegarLoop]: === Iteration 19 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:31:01,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:31:01,778 INFO L82 PathProgramCache]: Analyzing trace with hash -196875119, now seen corresponding path program 1 times [2020-09-25 05:31:01,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:31:01,779 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1677661411] [2020-09-25 05:31:01,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:31:01,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 05:31:01,811 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 05:31:01,811 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 05:31:01,820 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-09-25 05:31:01,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 05:31:01 BoogieIcfgContainer [2020-09-25 05:31:01,872 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 05:31:01,875 INFO L168 Benchmark]: Toolchain (without parser) took 34439.83 ms. Allocated memory was 140.0 MB in the beginning and 583.5 MB in the end (delta: 443.5 MB). Free memory was 101.4 MB in the beginning and 449.3 MB in the end (delta: -347.9 MB). Peak memory consumption was 95.6 MB. Max. memory is 7.1 GB. [2020-09-25 05:31:01,876 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 05:31:01,877 INFO L168 Benchmark]: CACSL2BoogieTranslator took 604.71 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 100.8 MB in the beginning and 178.1 MB in the end (delta: -77.3 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. [2020-09-25 05:31:01,877 INFO L168 Benchmark]: Boogie Preprocessor took 66.09 ms. Allocated memory is still 203.4 MB. Free memory was 178.1 MB in the beginning and 175.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-09-25 05:31:01,878 INFO L168 Benchmark]: RCFGBuilder took 1077.14 ms. Allocated memory is still 203.4 MB. Free memory was 175.4 MB in the beginning and 102.7 MB in the end (delta: 72.7 MB). Peak memory consumption was 72.7 MB. Max. memory is 7.1 GB. [2020-09-25 05:31:01,879 INFO L168 Benchmark]: TraceAbstraction took 32678.98 ms. Allocated memory was 203.4 MB in the beginning and 583.5 MB in the end (delta: 380.1 MB). Free memory was 102.0 MB in the beginning and 449.3 MB in the end (delta: -347.3 MB). Peak memory consumption was 32.8 MB. Max. memory is 7.1 GB. [2020-09-25 05:31:01,882 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 604.71 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 100.8 MB in the beginning and 178.1 MB in the end (delta: -77.3 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 66.09 ms. Allocated memory is still 203.4 MB. Free memory was 178.1 MB in the beginning and 175.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1077.14 ms. Allocated memory is still 203.4 MB. Free memory was 175.4 MB in the beginning and 102.7 MB in the end (delta: 72.7 MB). Peak memory consumption was 72.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 32678.98 ms. Allocated memory was 203.4 MB in the beginning and 583.5 MB in the end (delta: 380.1 MB). Free memory was 102.0 MB in the beginning and 449.3 MB in the end (delta: -347.3 MB). Peak memory consumption was 32.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 642]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L647] int s ; [L648] int tmp ; [L652] s = 8464 [L653] CALL ssl3_accept(s) [L11] int s__info_callback = __VERIFIER_nondet_int() ; [L12] int s__in_handshake = __VERIFIER_nondet_int() ; [L13] int s__state ; [L14] int s__new_session ; [L15] int s__server ; [L16] int s__version = __VERIFIER_nondet_int() ; [L17] int s__type ; [L18] int s__init_num ; [L19] int s__hit = __VERIFIER_nondet_int() ; [L20] int s__rwstate ; [L21] int s__init_buf___0 = 1; [L22] int s__debug = __VERIFIER_nondet_int() ; [L23] int s__shutdown ; [L24] int s__cert = __VERIFIER_nondet_int() ; [L25] int s__options = __VERIFIER_nondet_int() ; [L26] int s__verify_mode = __VERIFIER_nondet_int() ; [L27] int s__session__peer = __VERIFIER_nondet_int() ; [L28] int s__cert__pkeys__AT0__privatekey = __VERIFIER_nondet_int() ; [L29] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L30] int s__ctx__stats__sess_accept_renegotiate = __VERIFIER_nondet_int() ; [L31] int s__ctx__stats__sess_accept = __VERIFIER_nondet_int() ; [L32] int s__ctx__stats__sess_accept_good = __VERIFIER_nondet_int() ; [L33] int s__s3__tmp__cert_request ; [L34] int s__s3__tmp__reuse_message ; [L35] int s__s3__tmp__use_rsa_tmp ; [L36] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L37] int s__s3__tmp__new_cipher__algorithms ; [L38] int s__s3__tmp__next_state___0 ; [L39] int s__s3__tmp__new_cipher__algo_strength ; [L40] int s__session__cipher ; [L41] int buf ; [L42] unsigned long l ; [L43] unsigned long Time ; [L44] unsigned long tmp ; [L45] int cb ; [L46] long num1 = __VERIFIER_nondet_long() ; [L47] int ret ; [L48] int new_state ; [L49] int state ; [L50] int skip ; [L51] int got_new_session ; [L52] int tmp___1 = __VERIFIER_nondet_int() ; [L53] int tmp___2 = __VERIFIER_nondet_int() ; [L54] int tmp___3 = __VERIFIER_nondet_int() ; [L55] int tmp___4 = __VERIFIER_nondet_int() ; [L56] int tmp___5 = __VERIFIER_nondet_int() ; [L57] int tmp___6 = __VERIFIER_nondet_int() ; [L58] int tmp___7 = __VERIFIER_nondet_int() ; [L59] long tmp___8 = __VERIFIER_nondet_long() ; [L60] int tmp___9 = __VERIFIER_nondet_int() ; [L61] int tmp___10 = __VERIFIER_nondet_int() ; [L62] int blastFlag ; [L63] int __cil_tmp55 ; [L64] unsigned long __cil_tmp56 ; [L65] unsigned long __cil_tmp57 ; [L66] unsigned long __cil_tmp58 ; [L67] unsigned long __cil_tmp59 ; [L68] int __cil_tmp60 ; [L69] unsigned long __cil_tmp61 ; [L72] s__state = initial_state [L73] blastFlag = 0 [L74] tmp = __VERIFIER_nondet_int() [L75] Time = tmp [L76] cb = 0 [L77] ret = -1 [L78] skip = 0 [L79] got_new_session = 0 [L80] COND TRUE s__info_callback != 0 [L81] cb = s__info_callback [L87] s__in_handshake ++ [L88] COND FALSE !(tmp___1 + 12288) [L93] COND FALSE !(s__cert == 0) [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 8192) [L109] COND FALSE !(s__state == 24576) [L112] COND FALSE !(s__state == 8195) [L115] COND FALSE !(s__state == 8480) [L118] COND FALSE !(s__state == 8481) [L121] COND FALSE !(s__state == 8482) [L124] COND TRUE s__state == 8464 [L270] s__shutdown = 0 [L271] ret = __VERIFIER_nondet_int() [L272] COND TRUE blastFlag == 0 [L273] blastFlag = 1 [L275] COND FALSE !(ret <= 0) [L278] got_new_session = 1 [L279] s__state = 8496 [L280] s__init_num = 0 [L599] s__s3__tmp__reuse_message = __VERIFIER_nondet_int() [L600] COND FALSE !(! s__s3__tmp__reuse_message) [L631] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 8192) [L109] COND FALSE !(s__state == 24576) [L112] COND FALSE !(s__state == 8195) [L115] COND FALSE !(s__state == 8480) [L118] COND FALSE !(s__state == 8481) [L121] COND FALSE !(s__state == 8482) [L124] COND FALSE !(s__state == 8464) [L127] COND FALSE !(s__state == 8465) [L130] COND FALSE !(s__state == 8466) [L133] COND TRUE s__state == 8496 [L284] ret = __VERIFIER_nondet_int() [L285] COND TRUE blastFlag == 1 [L286] blastFlag = 2 [L288] COND FALSE !(ret <= 0) [L291] COND FALSE !(\read(s__hit)) [L294] s__state = 8512 [L296] s__init_num = 0 [L599] s__s3__tmp__reuse_message = __VERIFIER_nondet_int() [L600] COND FALSE !(! s__s3__tmp__reuse_message) [L631] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 8192) [L109] COND FALSE !(s__state == 24576) [L112] COND FALSE !(s__state == 8195) [L115] COND FALSE !(s__state == 8480) [L118] COND FALSE !(s__state == 8481) [L121] COND FALSE !(s__state == 8482) [L124] COND FALSE !(s__state == 8464) [L127] COND FALSE !(s__state == 8465) [L130] COND FALSE !(s__state == 8466) [L133] COND FALSE !(s__state == 8496) [L136] COND FALSE !(s__state == 8497) [L139] COND TRUE s__state == 8512 [L301] s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() [L302] __cil_tmp56 = (unsigned long )s__s3__tmp__new_cipher__algorithms [L303] COND TRUE __cil_tmp56 + 256UL [L304] skip = 1 [L315] s__state = 8528 [L316] s__init_num = 0 [L599] s__s3__tmp__reuse_message = __VERIFIER_nondet_int() [L600] COND FALSE !(! s__s3__tmp__reuse_message) [L631] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 8192) [L109] COND FALSE !(s__state == 24576) [L112] COND FALSE !(s__state == 8195) [L115] COND FALSE !(s__state == 8480) [L118] COND FALSE !(s__state == 8481) [L121] COND FALSE !(s__state == 8482) [L124] COND FALSE !(s__state == 8464) [L127] COND FALSE !(s__state == 8465) [L130] COND FALSE !(s__state == 8466) [L133] COND FALSE !(s__state == 8496) [L136] COND FALSE !(s__state == 8497) [L139] COND FALSE !(s__state == 8512) [L142] COND FALSE !(s__state == 8513) [L145] COND TRUE s__state == 8528 [L320] s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() [L321] l = (unsigned long )s__s3__tmp__new_cipher__algorithms [L323] __cil_tmp57 = (unsigned long )s__options [L324] COND TRUE __cil_tmp57 + 2097152UL [L325] s__s3__tmp__use_rsa_tmp = 1 [L330] COND TRUE \read(s__s3__tmp__use_rsa_tmp) [L357] ret = __VERIFIER_nondet_int() [L358] COND FALSE !(blastFlag == 6) [L361] COND FALSE !(ret <= 0) [L378] s__state = 8544 [L379] s__init_num = 0 [L599] s__s3__tmp__reuse_message = __VERIFIER_nondet_int() [L600] COND TRUE ! s__s3__tmp__reuse_message [L601] COND TRUE ! skip [L602] COND TRUE state == 8528 [L603] COND TRUE s__state == 8544 [L604] COND TRUE tmp___7 != 1024 [L605] COND TRUE tmp___7 != 512 [L606] COND TRUE __cil_tmp58 != 4294967294 [L607] COND TRUE l != 4294967266 [L642] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 440 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 32.5s, OverallIterations: 19, TraceHistogramMax: 4, AutomataDifference: 5.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 10228 SDtfs, 5227 SDslu, 12640 SDs, 0 SdLazy, 2442 SolverSat, 471 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 134 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2168occurred in iteration=15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 18 MinimizatonAttempts, 6341 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 24.8s InterpolantComputationTime, 3703 NumberOfCodeBlocks, 3703 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 3420 ConstructedInterpolants, 0 QuantifiedInterpolants, 968096 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 15 PerfectInterpolantSequences, 204/222 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...