/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=1.0 --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_clnt_4.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:56:50,004 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:56:50,008 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:56:50,053 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:56:50,054 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:56:50,055 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:56:50,062 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:56:50,066 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:56:50,069 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:56:50,072 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:56:50,074 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:56:50,075 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:56:50,075 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:56:50,078 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:56:50,080 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:56:50,082 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:56:50,084 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:56:50,085 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:56:50,086 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:56:50,095 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:56:50,097 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:56:50,098 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:56:50,099 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:56:50,100 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:56:50,112 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:56:50,113 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:56:50,113 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:56:50,114 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:56:50,114 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:56:50,115 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:56:50,116 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:56:50,117 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:56:50,117 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:56:50,118 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:56:50,119 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:56:50,120 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:56:50,120 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:56:50,121 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:56:50,121 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:56:50,122 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:56:50,123 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:56:50,124 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 08:56:50,151 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:56:50,151 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:56:50,152 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:56:50,152 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:56:50,152 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:56:50,153 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:56:50,153 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:56:50,153 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:56:50,153 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:56:50,154 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:56:50,154 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:56:50,154 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:56:50,154 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:56:50,154 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:56:50,155 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:56:50,155 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:56:50,155 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:56:50,155 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:56:50,155 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:56:50,156 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:56:50,156 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:56:50,156 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:56:50,156 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:56:50,156 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:56:50,157 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:56:50,157 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:56:50,157 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:56:50,157 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:56:50,157 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:56:50,158 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=1.0;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=1.0;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=1.0;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=1.0;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=1.0;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=1.0;log-additional-information=true; [2020-09-25 08:56:50,624 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:56:50,644 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:56:50,649 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:56:50,650 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:56:50,651 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:56:50,652 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_4.cil-2.c [2020-09-25 08:56:50,730 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/85f5e20f0/a896958120a945a9a3a606a2e53dd25d/FLAGb3285227c [2020-09-25 08:56:51,260 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:56:51,261 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_clnt_4.cil-2.c [2020-09-25 08:56:51,274 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/85f5e20f0/a896958120a945a9a3a606a2e53dd25d/FLAGb3285227c [2020-09-25 08:56:51,549 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/85f5e20f0/a896958120a945a9a3a606a2e53dd25d [2020-09-25 08:56:51,562 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:56:51,566 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:56:51,568 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:56:51,568 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:56:51,573 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:56:51,574 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:56:51" (1/1) ... [2020-09-25 08:56:51,578 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@623015b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:56:51, skipping insertion in model container [2020-09-25 08:56:51,578 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:56:51" (1/1) ... [2020-09-25 08:56:51,587 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:56:51,657 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:56:52,001 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:56:52,006 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:56:52,151 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:56:52,178 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:56:52,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:56:52 WrapperNode [2020-09-25 08:56:52,179 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:56:52,180 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:56:52,180 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:56:52,180 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:56:52,194 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:56:52" (1/1) ... [2020-09-25 08:56:52,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:56:52" (1/1) ... [2020-09-25 08:56:52,205 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:56:52" (1/1) ... [2020-09-25 08:56:52,205 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:56:52" (1/1) ... [2020-09-25 08:56:52,218 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:56:52" (1/1) ... [2020-09-25 08:56:52,233 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:56:52" (1/1) ... [2020-09-25 08:56:52,236 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:56:52" (1/1) ... [2020-09-25 08:56:52,241 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:56:52,242 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:56:52,242 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:56:52,242 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:56:52,243 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:56:52" (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 08:56:52,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:56:52,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:56:52,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-09-25 08:56:52,324 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:56:52,324 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:56:52,324 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 08:56:52,324 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:56:52,325 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-25 08:56:52,325 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-09-25 08:56:52,325 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:56:52,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:56:52,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:56:52,522 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 08:56:53,211 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-09-25 08:56:53,212 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-09-25 08:56:53,240 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:56:53,240 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 08:56:53,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:56:53 BoogieIcfgContainer [2020-09-25 08:56:53,249 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:56:53,250 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:56:53,250 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:56:53,254 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:56:53,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:56:51" (1/3) ... [2020-09-25 08:56:53,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@132df631 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:56:53, skipping insertion in model container [2020-09-25 08:56:53,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:56:52" (2/3) ... [2020-09-25 08:56:53,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@132df631 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:56:53, skipping insertion in model container [2020-09-25 08:56:53,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:56:53" (3/3) ... [2020-09-25 08:56:53,258 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_4.cil-2.c [2020-09-25 08:56:53,270 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:56:53,282 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:56:53,307 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:56:53,342 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:56:53,342 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:56:53,342 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:56:53,342 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:56:53,343 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:56:53,343 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:56:53,343 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:56:53,343 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:56:53,375 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states. [2020-09-25 08:56:53,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 08:56:53,394 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:56:53,396 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] [2020-09-25 08:56:53,396 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:56:53,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:56:53,403 INFO L82 PathProgramCache]: Analyzing trace with hash 1739904560, now seen corresponding path program 1 times [2020-09-25 08:56:53,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:56:53,413 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [751688882] [2020-09-25 08:56:53,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:56:53,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:53,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:54,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:54,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:54,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:54,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-09-25 08:56:54,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:56:54,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1073 [2020-09-25 08:56:54,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:54,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:54,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:56:54,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 141 [2020-09-25 08:56:54,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 08:56:54,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 08:56:54,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:56:54,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:54,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:54,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:54,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:56:54,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:54,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:56:54,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:54,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:54,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:56:54,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:54,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:56:54,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:54,928 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 08:56:54,929 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [751688882] [2020-09-25 08:56:54,931 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:56:54,932 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 08:56:54,933 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728509118] [2020-09-25 08:56:54,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 08:56:54,940 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:56:54,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 08:56:54,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:56:54,960 INFO L87 Difference]: Start difference. First operand 391 states. Second operand 3 states. [2020-09-25 08:56:55,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:56:55,097 INFO L93 Difference]: Finished difference Result 859 states and 1116 transitions. [2020-09-25 08:56:55,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 08:56:55,099 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 167 [2020-09-25 08:56:55,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:56:55,124 INFO L225 Difference]: With dead ends: 859 [2020-09-25 08:56:55,124 INFO L226 Difference]: Without dead ends: 542 [2020-09-25 08:56:55,131 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 08:56:55,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2020-09-25 08:56:55,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 542. [2020-09-25 08:56:55,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 542 states. [2020-09-25 08:56:55,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 648 transitions. [2020-09-25 08:56:55,239 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 648 transitions. Word has length 167 [2020-09-25 08:56:55,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:56:55,240 INFO L479 AbstractCegarLoop]: Abstraction has 542 states and 648 transitions. [2020-09-25 08:56:55,240 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 08:56:55,240 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 648 transitions. [2020-09-25 08:56:55,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-09-25 08:56:55,246 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:56:55,246 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 08:56:55,247 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:56:55,247 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:56:55,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:56:55,248 INFO L82 PathProgramCache]: Analyzing trace with hash 1853292792, now seen corresponding path program 1 times [2020-09-25 08:56:55,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:56:55,248 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2081925397] [2020-09-25 08:56:55,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:56:55,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:55,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:55,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:55,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:55,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:55,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:56,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:56,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-09-25 08:56:56,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:56:56,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1428 [2020-09-25 08:56:56,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:56,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:56,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:56:56,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-09-25 08:56:56,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 08:56:56,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:56,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:56:56,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:56,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:56,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:56,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:56:56,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:56,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:56:56,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:56,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:56,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:56:56,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:56,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:56:56,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:56,809 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:56:56,809 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2081925397] [2020-09-25 08:56:56,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:56:56,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 08:56:56,810 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336284048] [2020-09-25 08:56:56,812 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 08:56:56,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:56:56,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 08:56:56,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:56:56,814 INFO L87 Difference]: Start difference. First operand 542 states and 648 transitions. Second operand 3 states. [2020-09-25 08:56:56,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:56:56,912 INFO L93 Difference]: Finished difference Result 935 states and 1148 transitions. [2020-09-25 08:56:56,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 08:56:56,913 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 187 [2020-09-25 08:56:56,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:56:56,922 INFO L225 Difference]: With dead ends: 935 [2020-09-25 08:56:56,923 INFO L226 Difference]: Without dead ends: 735 [2020-09-25 08:56:56,927 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 08:56:56,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2020-09-25 08:56:56,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 735. [2020-09-25 08:56:56,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 735 states. [2020-09-25 08:56:56,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 891 transitions. [2020-09-25 08:56:56,968 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 891 transitions. Word has length 187 [2020-09-25 08:56:56,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:56:56,969 INFO L479 AbstractCegarLoop]: Abstraction has 735 states and 891 transitions. [2020-09-25 08:56:56,969 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 08:56:56,969 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 891 transitions. [2020-09-25 08:56:56,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-09-25 08:56:56,974 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:56:56,974 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2020-09-25 08:56:56,975 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:56:56,975 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:56:56,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:56:56,975 INFO L82 PathProgramCache]: Analyzing trace with hash -2121553579, now seen corresponding path program 1 times [2020-09-25 08:56:56,976 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:56:56,976 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1489055357] [2020-09-25 08:56:56,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:56:57,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:57,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:57,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:57,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:57,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:58,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:58,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-09-25 08:56:58,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:56:58,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1206 [2020-09-25 08:56:58,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:58,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:58,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:56:58,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 189 [2020-09-25 08:56:58,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 08:56:58,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 20 [2020-09-25 08:56:58,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:56:58,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:58,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:58,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:58,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:56:58,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:58,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:56:58,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:58,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:58,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:56:58,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:58,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:56:58,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:58,313 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-25 08:56:58,314 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1489055357] [2020-09-25 08:56:58,314 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:56:58,314 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 08:56:58,315 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487792085] [2020-09-25 08:56:58,316 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 08:56:58,316 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:56:58,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 08:56:58,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:56:58,317 INFO L87 Difference]: Start difference. First operand 735 states and 891 transitions. Second operand 3 states. [2020-09-25 08:56:58,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:56:58,383 INFO L93 Difference]: Finished difference Result 1321 states and 1634 transitions. [2020-09-25 08:56:58,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 08:56:58,384 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 208 [2020-09-25 08:56:58,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:56:58,389 INFO L225 Difference]: With dead ends: 1321 [2020-09-25 08:56:58,390 INFO L226 Difference]: Without dead ends: 928 [2020-09-25 08:56:58,391 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 08:56:58,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2020-09-25 08:56:58,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 928. [2020-09-25 08:56:58,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 928 states. [2020-09-25 08:56:58,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1135 transitions. [2020-09-25 08:56:58,415 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1135 transitions. Word has length 208 [2020-09-25 08:56:58,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:56:58,416 INFO L479 AbstractCegarLoop]: Abstraction has 928 states and 1135 transitions. [2020-09-25 08:56:58,416 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 08:56:58,416 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1135 transitions. [2020-09-25 08:56:58,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-09-25 08:56:58,420 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:56:58,421 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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] [2020-09-25 08:56:58,421 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:56:58,421 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:56:58,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:56:58,422 INFO L82 PathProgramCache]: Analyzing trace with hash -951989695, now seen corresponding path program 1 times [2020-09-25 08:56:58,422 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:56:58,422 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [843898244] [2020-09-25 08:56:58,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:56:58,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:58,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:58,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:58,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:59,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:59,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:59,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:01,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:01,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 241 [2020-09-25 08:57:01,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 08:57:01,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3352 [2020-09-25 08:57:01,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:01,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:01,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:57:01,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 214 [2020-09-25 08:57:01,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 08:57:01,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:01,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:57:01,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:01,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:01,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:01,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:57:01,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:01,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:57:01,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:01,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:01,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:01,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:01,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:01,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 08:57:01,908 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-09-25 08:57:01,910 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [843898244] [2020-09-25 08:57:01,910 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:57:01,910 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 08:57:01,911 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021050219] [2020-09-25 08:57:01,911 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 08:57:01,911 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:57:01,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 08:57:01,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:57:01,913 INFO L87 Difference]: Start difference. First operand 928 states and 1135 transitions. Second operand 3 states. [2020-09-25 08:57:02,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:57:02,007 INFO L93 Difference]: Finished difference Result 1707 states and 2122 transitions. [2020-09-25 08:57:02,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 08:57:02,008 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 232 [2020-09-25 08:57:02,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:57:02,014 INFO L225 Difference]: With dead ends: 1707 [2020-09-25 08:57:02,015 INFO L226 Difference]: Without dead ends: 1121 [2020-09-25 08:57:02,016 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 08:57:02,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1121 states. [2020-09-25 08:57:02,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1121 to 1121. [2020-09-25 08:57:02,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1121 states. [2020-09-25 08:57:02,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1121 states to 1121 states and 1380 transitions. [2020-09-25 08:57:02,047 INFO L78 Accepts]: Start accepts. Automaton has 1121 states and 1380 transitions. Word has length 232 [2020-09-25 08:57:02,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:57:02,048 INFO L479 AbstractCegarLoop]: Abstraction has 1121 states and 1380 transitions. [2020-09-25 08:57:02,048 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 08:57:02,048 INFO L276 IsEmpty]: Start isEmpty. Operand 1121 states and 1380 transitions. [2020-09-25 08:57:02,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-09-25 08:57:02,053 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:57:02,054 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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, 1, 1] [2020-09-25 08:57:02,054 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:57:02,054 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:57:02,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:57:02,055 INFO L82 PathProgramCache]: Analyzing trace with hash -1507788610, now seen corresponding path program 1 times [2020-09-25 08:57:02,055 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:57:02,055 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [187353537] [2020-09-25 08:57:02,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:57:02,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:02,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:02,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:02,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:03,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:03,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-09-25 08:57:03,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:57:03,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1193 [2020-09-25 08:57:03,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:03,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:03,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:57:03,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 192 [2020-09-25 08:57:03,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 08:57:03,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:03,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:57:03,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:03,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:03,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:03,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:57:03,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:03,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:57:03,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:03,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:03,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:03,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:03,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:03,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:03,390 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-09-25 08:57:03,391 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [187353537] [2020-09-25 08:57:03,391 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:57:03,391 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 08:57:03,392 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045394574] [2020-09-25 08:57:03,392 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 08:57:03,393 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:57:03,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 08:57:03,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:57:03,393 INFO L87 Difference]: Start difference. First operand 1121 states and 1380 transitions. Second operand 3 states. [2020-09-25 08:57:03,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:57:03,677 INFO L93 Difference]: Finished difference Result 2403 states and 3107 transitions. [2020-09-25 08:57:03,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 08:57:03,678 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 257 [2020-09-25 08:57:03,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:57:03,685 INFO L225 Difference]: With dead ends: 2403 [2020-09-25 08:57:03,685 INFO L226 Difference]: Without dead ends: 1426 [2020-09-25 08:57:03,688 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 08:57:03,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2020-09-25 08:57:03,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 1341. [2020-09-25 08:57:03,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1341 states. [2020-09-25 08:57:03,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1341 states to 1341 states and 1645 transitions. [2020-09-25 08:57:03,732 INFO L78 Accepts]: Start accepts. Automaton has 1341 states and 1645 transitions. Word has length 257 [2020-09-25 08:57:03,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:57:03,733 INFO L479 AbstractCegarLoop]: Abstraction has 1341 states and 1645 transitions. [2020-09-25 08:57:03,733 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 08:57:03,733 INFO L276 IsEmpty]: Start isEmpty. Operand 1341 states and 1645 transitions. [2020-09-25 08:57:03,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-09-25 08:57:03,744 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:57:03,744 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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, 1, 1] [2020-09-25 08:57:03,745 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 08:57:03,745 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:57:03,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:57:03,746 INFO L82 PathProgramCache]: Analyzing trace with hash -1870764962, now seen corresponding path program 1 times [2020-09-25 08:57:03,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:57:03,747 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2113728690] [2020-09-25 08:57:03,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:57:03,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:03,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:04,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:04,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:04,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-09-25 08:57:04,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:57:04,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 583 [2020-09-25 08:57:04,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:04,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:04,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:57:04,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 08:57:04,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-09-25 08:57:04,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:04,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:57:04,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:04,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:04,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:04,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:57:04,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:04,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:57:04,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:04,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:04,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:04,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:04,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:04,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:04,716 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-09-25 08:57:04,717 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2113728690] [2020-09-25 08:57:04,717 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:57:04,717 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 08:57:04,717 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835967600] [2020-09-25 08:57:04,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 08:57:04,718 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:57:04,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 08:57:04,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 08:57:04,719 INFO L87 Difference]: Start difference. First operand 1341 states and 1645 transitions. Second operand 6 states. [2020-09-25 08:57:05,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:57:05,043 INFO L93 Difference]: Finished difference Result 2669 states and 3333 transitions. [2020-09-25 08:57:05,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 08:57:05,043 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 257 [2020-09-25 08:57:05,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:57:05,053 INFO L225 Difference]: With dead ends: 2669 [2020-09-25 08:57:05,053 INFO L226 Difference]: Without dead ends: 1477 [2020-09-25 08:57:05,057 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 08:57:05,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1477 states. [2020-09-25 08:57:05,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1477 to 1431. [2020-09-25 08:57:05,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1431 states. [2020-09-25 08:57:05,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1431 states to 1431 states and 1785 transitions. [2020-09-25 08:57:05,112 INFO L78 Accepts]: Start accepts. Automaton has 1431 states and 1785 transitions. Word has length 257 [2020-09-25 08:57:05,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:57:05,113 INFO L479 AbstractCegarLoop]: Abstraction has 1431 states and 1785 transitions. [2020-09-25 08:57:05,113 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 08:57:05,114 INFO L276 IsEmpty]: Start isEmpty. Operand 1431 states and 1785 transitions. [2020-09-25 08:57:05,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2020-09-25 08:57:05,124 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:57:05,124 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 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, 1, 1] [2020-09-25 08:57:05,125 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 08:57:05,125 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:57:05,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:57:05,126 INFO L82 PathProgramCache]: Analyzing trace with hash -225222432, now seen corresponding path program 1 times [2020-09-25 08:57:05,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:57:05,127 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [281594676] [2020-09-25 08:57:05,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:57:05,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:05,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:05,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:06,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:06,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 267 [2020-09-25 08:57:06,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:57:06,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-25 08:57:06,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:06,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:06,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:57:06,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 08:57:06,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-09-25 08:57:06,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:06,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:57:06,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:06,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:06,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:06,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:57:06,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:06,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:57:06,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:06,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:06,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:06,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:06,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:06,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:06,335 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-09-25 08:57:06,335 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [281594676] [2020-09-25 08:57:06,335 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:57:06,336 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 08:57:06,337 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17058736] [2020-09-25 08:57:06,338 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 08:57:06,338 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:57:06,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 08:57:06,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 08:57:06,339 INFO L87 Difference]: Start difference. First operand 1431 states and 1785 transitions. Second operand 6 states. [2020-09-25 08:57:06,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:57:06,652 INFO L93 Difference]: Finished difference Result 2822 states and 3566 transitions. [2020-09-25 08:57:06,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 08:57:06,653 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 258 [2020-09-25 08:57:06,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:57:06,663 INFO L225 Difference]: With dead ends: 2822 [2020-09-25 08:57:06,663 INFO L226 Difference]: Without dead ends: 1512 [2020-09-25 08:57:06,669 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 08:57:06,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2020-09-25 08:57:06,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1437. [2020-09-25 08:57:06,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1437 states. [2020-09-25 08:57:06,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1437 states to 1437 states and 1793 transitions. [2020-09-25 08:57:06,744 INFO L78 Accepts]: Start accepts. Automaton has 1437 states and 1793 transitions. Word has length 258 [2020-09-25 08:57:06,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:57:06,745 INFO L479 AbstractCegarLoop]: Abstraction has 1437 states and 1793 transitions. [2020-09-25 08:57:06,745 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 08:57:06,745 INFO L276 IsEmpty]: Start isEmpty. Operand 1437 states and 1793 transitions. [2020-09-25 08:57:06,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2020-09-25 08:57:06,753 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:57:06,753 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:57:06,753 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 08:57:06,754 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:57:06,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:57:06,754 INFO L82 PathProgramCache]: Analyzing trace with hash 488549191, now seen corresponding path program 1 times [2020-09-25 08:57:06,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:57:06,755 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [384134692] [2020-09-25 08:57:06,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:57:06,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:06,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:07,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:07,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:07,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 285 [2020-09-25 08:57:07,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:57:07,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 989 [2020-09-25 08:57:07,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:07,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:07,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:57:07,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 08:57:07,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-09-25 08:57:07,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:07,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:57:07,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:07,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:07,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:07,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:57:07,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:07,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:57:07,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:07,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:07,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:07,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:07,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:07,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:07,934 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-09-25 08:57:07,935 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [384134692] [2020-09-25 08:57:07,935 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:57:07,935 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 08:57:07,936 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219728887] [2020-09-25 08:57:07,936 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 08:57:07,936 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:57:07,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 08:57:07,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 08:57:07,938 INFO L87 Difference]: Start difference. First operand 1437 states and 1793 transitions. Second operand 6 states. [2020-09-25 08:57:08,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:57:08,124 INFO L93 Difference]: Finished difference Result 2719 states and 3425 transitions. [2020-09-25 08:57:08,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 08:57:08,125 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 276 [2020-09-25 08:57:08,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:57:08,132 INFO L225 Difference]: With dead ends: 2719 [2020-09-25 08:57:08,132 INFO L226 Difference]: Without dead ends: 1434 [2020-09-25 08:57:08,135 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 08:57:08,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1434 states. [2020-09-25 08:57:08,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1434 to 1434. [2020-09-25 08:57:08,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1434 states. [2020-09-25 08:57:08,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1434 states to 1434 states and 1788 transitions. [2020-09-25 08:57:08,177 INFO L78 Accepts]: Start accepts. Automaton has 1434 states and 1788 transitions. Word has length 276 [2020-09-25 08:57:08,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:57:08,178 INFO L479 AbstractCegarLoop]: Abstraction has 1434 states and 1788 transitions. [2020-09-25 08:57:08,178 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 08:57:08,178 INFO L276 IsEmpty]: Start isEmpty. Operand 1434 states and 1788 transitions. [2020-09-25 08:57:08,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2020-09-25 08:57:08,185 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:57:08,185 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:57:08,186 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 08:57:08,186 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:57:08,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:57:08,186 INFO L82 PathProgramCache]: Analyzing trace with hash -802173269, now seen corresponding path program 1 times [2020-09-25 08:57:08,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:57:08,187 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [409903342] [2020-09-25 08:57:08,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:57:08,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 08:57:08,235 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 08:57:08,235 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 08:57:08,253 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 08:57:08,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 08:57:08 BoogieIcfgContainer [2020-09-25 08:57:08,305 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 08:57:08,313 INFO L168 Benchmark]: Toolchain (without parser) took 16743.70 ms. Allocated memory was 138.4 MB in the beginning and 457.2 MB in the end (delta: 318.8 MB). Free memory was 101.4 MB in the beginning and 169.7 MB in the end (delta: -68.3 MB). Peak memory consumption was 250.4 MB. Max. memory is 7.1 GB. [2020-09-25 08:57:08,314 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.5 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. [2020-09-25 08:57:08,315 INFO L168 Benchmark]: CACSL2BoogieTranslator took 611.27 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 100.5 MB in the beginning and 176.3 MB in the end (delta: -75.7 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. [2020-09-25 08:57:08,316 INFO L168 Benchmark]: Boogie Preprocessor took 61.30 ms. Allocated memory is still 201.3 MB. Free memory was 176.3 MB in the beginning and 173.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2020-09-25 08:57:08,316 INFO L168 Benchmark]: RCFGBuilder took 1007.52 ms. Allocated memory is still 201.3 MB. Free memory was 173.9 MB in the beginning and 108.8 MB in the end (delta: 65.1 MB). Peak memory consumption was 65.1 MB. Max. memory is 7.1 GB. [2020-09-25 08:57:08,320 INFO L168 Benchmark]: TraceAbstraction took 15054.77 ms. Allocated memory was 201.3 MB in the beginning and 457.2 MB in the end (delta: 255.9 MB). Free memory was 108.8 MB in the beginning and 169.7 MB in the end (delta: -60.9 MB). Peak memory consumption was 195.0 MB. Max. memory is 7.1 GB. [2020-09-25 08:57:08,331 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.5 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 611.27 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 100.5 MB in the beginning and 176.3 MB in the end (delta: -75.7 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 61.30 ms. Allocated memory is still 201.3 MB. Free memory was 176.3 MB in the beginning and 173.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1007.52 ms. Allocated memory is still 201.3 MB. Free memory was 173.9 MB in the beginning and 108.8 MB in the end (delta: 65.1 MB). Peak memory consumption was 65.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 15054.77 ms. Allocated memory was 201.3 MB in the beginning and 457.2 MB in the end (delta: 255.9 MB). Free memory was 108.8 MB in the beginning and 169.7 MB in the end (delta: -60.9 MB). Peak memory consumption was 195.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 548]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L553] int s ; [L557] s = 12292 [L558] CALL ssl3_connect(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__bbio = __VERIFIER_nondet_int() ; [L20] int s__wbio = __VERIFIER_nondet_int() ; [L21] int s__hit = __VERIFIER_nondet_int() ; [L22] int s__rwstate ; [L23] int s__init_buf___0 = __VERIFIER_nondet_int() ; [L24] int s__debug = __VERIFIER_nondet_int() ; [L25] int s__shutdown ; [L26] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L27] int s__ctx__stats__sess_connect_renegotiate = __VERIFIER_nondet_int() ; [L28] int s__ctx__stats__sess_connect = __VERIFIER_nondet_int() ; [L29] int s__ctx__stats__sess_hit = __VERIFIER_nondet_int() ; [L30] int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_int() ; [L31] int s__s3__change_cipher_spec ; [L32] int s__s3__flags = __VERIFIER_nondet_int() ; [L33] int s__s3__delay_buf_pop_ret ; [L34] int s__s3__tmp__cert_req = __VERIFIER_nondet_int() ; [L35] int s__s3__tmp__new_compression = __VERIFIER_nondet_int() ; [L36] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int() ; [L37] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L38] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() ; [L39] int s__s3__tmp__next_state___0 ; [L40] int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int() ; [L41] int s__session__cipher ; [L42] int s__session__compress_meth ; [L43] int buf ; [L44] unsigned long tmp ; [L45] unsigned long l ; [L46] int num1 = __VERIFIER_nondet_int() ; [L47] int cb ; [L48] int ret ; [L49] int new_state ; [L50] int state ; [L51] int skip ; [L52] int tmp___0 ; [L53] int tmp___1 = __VERIFIER_nondet_int() ; [L54] int tmp___2 = __VERIFIER_nondet_int() ; [L55] int tmp___3 = __VERIFIER_nondet_int() ; [L56] int tmp___4 = __VERIFIER_nondet_int() ; [L57] int tmp___5 = __VERIFIER_nondet_int() ; [L58] int tmp___6 = __VERIFIER_nondet_int() ; [L59] int tmp___7 = __VERIFIER_nondet_int() ; [L60] int tmp___8 = __VERIFIER_nondet_int() ; [L61] int tmp___9 = __VERIFIER_nondet_int() ; [L62] int blastFlag ; [L63] int __cil_tmp55 ; [L64] unsigned long __cil_tmp56 ; [L65] long __cil_tmp57 ; [L66] long __cil_tmp58 ; [L67] long __cil_tmp59 ; [L68] long __cil_tmp60 ; [L69] long __cil_tmp61 ; [L70] long __cil_tmp62 ; [L71] long __cil_tmp63 ; [L72] long __cil_tmp64 ; [L73] long __cil_tmp65 ; [L77] s__state = initial_state [L78] blastFlag = 0 [L79] tmp = __VERIFIER_nondet_int() [L80] cb = 0 [L81] ret = -1 [L82] skip = 0 [L83] tmp___0 = 0 [L84] COND TRUE s__info_callback != 0 [L85] cb = s__info_callback [L91] s__in_handshake ++ [L92] COND FALSE !(tmp___1 + 12288) [L98] COND TRUE 1 [L100] state = s__state [L101] COND TRUE s__state == 12292 [L203] s__new_session = 1 [L204] s__state = 4096 [L205] s__ctx__stats__sess_connect_renegotiate ++ [L210] s__server = 0 [L211] COND TRUE cb != 0 [L215] __cil_tmp55 = s__version + 65280 [L216] COND FALSE !(__cil_tmp55 != 768) [L221] s__type = 4096 [L222] COND FALSE !(s__init_buf___0 == 0) [L234] COND FALSE !(! tmp___4) [L238] COND FALSE !(! tmp___5) [L242] s__state = 4368 [L243] s__ctx__stats__sess_connect ++ [L244] s__init_num = 0 [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND TRUE s__state == 4368 [L248] s__shutdown = 0 [L249] ret = __VERIFIER_nondet_int() [L250] COND TRUE blastFlag == 0 [L251] blastFlag = 1 [L253] COND FALSE !(ret <= 0) [L256] s__state = 4384 [L257] s__init_num = 0 [L258] COND TRUE s__bbio != s__wbio [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND TRUE s__state == 4384 [L264] ret = __VERIFIER_nondet_int() [L265] COND TRUE blastFlag == 1 [L266] blastFlag = 2 [L268] COND FALSE !(ret <= 0) [L271] COND FALSE !(\read(s__hit)) [L274] s__state = 4400 [L276] s__init_num = 0 [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND FALSE !(s__state == 4384) [L125] COND FALSE !(s__state == 4385) [L128] COND TRUE s__state == 4400 [L281] __cil_tmp56 = (unsigned long )s__s3__tmp__new_cipher__algorithms [L282] COND FALSE !(__cil_tmp56 + 256UL) [L285] ret = __VERIFIER_nondet_int() [L286] COND TRUE blastFlag == 2 [L287] blastFlag = 3 [L293] COND FALSE !(ret <= 0) [L298] s__state = 4416 [L299] s__init_num = 0 [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND FALSE !(s__state == 4384) [L125] COND FALSE !(s__state == 4385) [L128] COND FALSE !(s__state == 4400) [L131] COND FALSE !(s__state == 4401) [L134] COND TRUE s__state == 4416 [L303] ret = __VERIFIER_nondet_int() [L304] COND TRUE blastFlag == 3 [L305] blastFlag = 4 [L307] COND FALSE !(ret <= 0) [L310] s__state = 4432 [L311] s__init_num = 0 [L312] COND FALSE !(! tmp___6) [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND FALSE !(s__state == 4384) [L125] COND FALSE !(s__state == 4385) [L128] COND FALSE !(s__state == 4400) [L131] COND FALSE !(s__state == 4401) [L134] COND FALSE !(s__state == 4416) [L137] COND FALSE !(s__state == 4417) [L140] COND TRUE s__state == 4432 [L319] ret = __VERIFIER_nondet_int() [L320] COND TRUE blastFlag == 4 [L548] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 391 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 14.9s, OverallIterations: 9, TraceHistogramMax: 6, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3206 SDtfs, 3534 SDslu, 3743 SDs, 0 SdLazy, 632 SolverSat, 114 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1437occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 206 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 11.6s InterpolantComputationTime, 2122 NumberOfCodeBlocks, 2122 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1834 ConstructedInterpolants, 0 QuantifiedInterpolants, 751180 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 578/578 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...