/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 --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 04:21:49,288 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:21:49,291 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:21:49,316 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:21:49,317 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:21:49,318 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:21:49,320 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:21:49,321 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:21:49,323 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:21:49,324 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:21:49,325 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:21:49,327 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:21:49,327 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:21:49,328 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:21:49,329 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:21:49,330 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:21:49,331 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:21:49,333 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:21:49,334 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:21:49,336 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:21:49,338 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:21:49,339 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:21:49,340 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:21:49,341 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:21:49,344 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:21:49,344 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:21:49,345 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:21:49,349 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:21:49,349 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:21:49,350 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:21:49,350 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:21:49,351 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:21:49,352 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:21:49,353 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:21:49,354 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:21:49,354 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:21:49,357 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:21:49,357 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:21:49,357 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:21:49,359 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:21:49,365 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:21:49,366 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 04:21:49,417 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:21:49,417 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:21:49,420 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:21:49,420 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:21:49,420 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:21:49,421 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:21:49,421 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:21:49,421 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:21:49,421 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:21:49,422 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:21:49,422 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:21:49,423 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:21:49,423 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:21:49,423 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:21:49,424 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:21:49,424 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:21:49,425 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:21:49,425 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:21:49,425 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:21:49,425 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:21:49,426 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:21:49,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:21:49,426 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:21:49,426 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:21:49,427 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:21:49,427 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:21:49,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:21:49,427 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:21:49,427 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:21:49,427 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; [2020-09-25 04:21:49,895 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:21:49,918 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:21:49,923 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:21:49,924 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:21:49,925 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:21:49,926 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_4.cil-2.c [2020-09-25 04:21:50,003 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/292c0fbde/ffe230cd834b44b5ad140fa8085c545b/FLAG0abf7de21 [2020-09-25 04:21:50,559 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:21:50,560 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_clnt_4.cil-2.c [2020-09-25 04:21:50,585 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/292c0fbde/ffe230cd834b44b5ad140fa8085c545b/FLAG0abf7de21 [2020-09-25 04:21:50,884 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/292c0fbde/ffe230cd834b44b5ad140fa8085c545b [2020-09-25 04:21:50,897 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:21:50,906 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:21:50,908 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:21:50,908 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:21:50,912 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:21:50,913 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:21:50" (1/1) ... [2020-09-25 04:21:50,919 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14b4f038 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:50, skipping insertion in model container [2020-09-25 04:21:50,919 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:21:50" (1/1) ... [2020-09-25 04:21:50,929 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:21:50,991 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:21:51,268 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:21:51,273 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:21:51,459 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:21:51,474 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:21:51,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:51 WrapperNode [2020-09-25 04:21:51,475 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:21:51,476 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:21:51,476 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:21:51,476 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:21:51,490 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:51" (1/1) ... [2020-09-25 04:21:51,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:51" (1/1) ... [2020-09-25 04:21:51,500 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:51" (1/1) ... [2020-09-25 04:21:51,501 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:51" (1/1) ... [2020-09-25 04:21:51,513 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:51" (1/1) ... [2020-09-25 04:21:51,527 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:51" (1/1) ... [2020-09-25 04:21:51,531 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:51" (1/1) ... [2020-09-25 04:21:51,535 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:21:51,536 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:21:51,536 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:21:51,536 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:21:51,537 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:51" (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 04:21:51,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:21:51,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:21:51,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-09-25 04:21:51,616 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:21:51,616 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:21:51,616 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 04:21:51,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:21:51,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-25 04:21:51,617 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-09-25 04:21:51,617 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:21:51,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:21:51,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:21:51,792 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 04:21:52,552 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-09-25 04:21:52,552 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-09-25 04:21:52,592 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:21:52,592 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 04:21:52,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:21:52 BoogieIcfgContainer [2020-09-25 04:21:52,609 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:21:52,612 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:21:52,612 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:21:52,616 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:21:52,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:21:50" (1/3) ... [2020-09-25 04:21:52,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42ae0569 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:21:52, skipping insertion in model container [2020-09-25 04:21:52,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:51" (2/3) ... [2020-09-25 04:21:52,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42ae0569 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:21:52, skipping insertion in model container [2020-09-25 04:21:52,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:21:52" (3/3) ... [2020-09-25 04:21:52,622 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_4.cil-2.c [2020-09-25 04:21:52,634 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:21:52,650 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:21:52,672 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:21:52,700 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:21:52,700 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:21:52,700 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:21:52,700 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:21:52,700 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:21:52,701 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:21:52,701 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:21:52,701 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:21:52,727 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states. [2020-09-25 04:21:52,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 04:21:52,747 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:52,749 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 04:21:52,749 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:52,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:52,757 INFO L82 PathProgramCache]: Analyzing trace with hash 1739904560, now seen corresponding path program 1 times [2020-09-25 04:21:52,768 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:52,769 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [691178463] [2020-09-25 04:21:52,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:52,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:53,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:53,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:53,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:54,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:54,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-09-25 04:21:54,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:21:54,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1205 [2020-09-25 04:21:54,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:54,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:54,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:21:54,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 141 [2020-09-25 04:21:54,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 04:21:54,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 04:21:54,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:21:54,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:54,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:54,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:54,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:21:54,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:54,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:21:54,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:54,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:54,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:54,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:54,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:54,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:21:54,428 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 04:21:54,430 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [691178463] [2020-09-25 04:21:54,432 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:21:54,433 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:21:54,434 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777229958] [2020-09-25 04:21:54,440 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:21:54,440 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:21:54,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:21:54,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:21:54,461 INFO L87 Difference]: Start difference. First operand 391 states. Second operand 3 states. [2020-09-25 04:21:54,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:21:54,604 INFO L93 Difference]: Finished difference Result 859 states and 1116 transitions. [2020-09-25 04:21:54,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:21:54,606 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 167 [2020-09-25 04:21:54,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:21:54,632 INFO L225 Difference]: With dead ends: 859 [2020-09-25 04:21:54,632 INFO L226 Difference]: Without dead ends: 542 [2020-09-25 04:21:54,638 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 04:21:54,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2020-09-25 04:21:54,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 542. [2020-09-25 04:21:54,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 542 states. [2020-09-25 04:21:54,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 648 transitions. [2020-09-25 04:21:54,732 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 648 transitions. Word has length 167 [2020-09-25 04:21:54,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:21:54,733 INFO L479 AbstractCegarLoop]: Abstraction has 542 states and 648 transitions. [2020-09-25 04:21:54,734 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:21:54,734 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 648 transitions. [2020-09-25 04:21:54,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-09-25 04:21:54,740 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:54,740 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 04:21:54,740 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:21:54,741 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:54,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:54,741 INFO L82 PathProgramCache]: Analyzing trace with hash 1853292792, now seen corresponding path program 1 times [2020-09-25 04:21:54,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:54,742 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2141580195] [2020-09-25 04:21:54,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:54,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:54,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:54,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:55,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:55,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:55,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:56,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:56,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-09-25 04:21:56,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:21:56,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1503 [2020-09-25 04:21:56,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:56,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:56,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:21:56,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-09-25 04:21:56,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 04:21:56,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 04:21:56,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:21:56,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:56,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:56,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:56,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:21:56,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:56,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:21:56,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:56,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:56,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:56,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:56,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:56,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:21:56,401 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 04:21:56,410 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2141580195] [2020-09-25 04:21:56,410 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:21:56,410 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:21:56,411 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906611679] [2020-09-25 04:21:56,414 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:21:56,415 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:21:56,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:21:56,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:21:56,416 INFO L87 Difference]: Start difference. First operand 542 states and 648 transitions. Second operand 3 states. [2020-09-25 04:21:56,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:21:56,506 INFO L93 Difference]: Finished difference Result 935 states and 1148 transitions. [2020-09-25 04:21:56,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:21:56,507 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 187 [2020-09-25 04:21:56,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:21:56,514 INFO L225 Difference]: With dead ends: 935 [2020-09-25 04:21:56,514 INFO L226 Difference]: Without dead ends: 735 [2020-09-25 04:21:56,523 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 04:21:56,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2020-09-25 04:21:56,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 735. [2020-09-25 04:21:56,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 735 states. [2020-09-25 04:21:56,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 891 transitions. [2020-09-25 04:21:56,577 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 891 transitions. Word has length 187 [2020-09-25 04:21:56,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:21:56,577 INFO L479 AbstractCegarLoop]: Abstraction has 735 states and 891 transitions. [2020-09-25 04:21:56,578 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:21:56,578 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 891 transitions. [2020-09-25 04:21:56,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-09-25 04:21:56,583 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:56,584 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 04:21:56,584 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:21:56,584 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:56,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:56,585 INFO L82 PathProgramCache]: Analyzing trace with hash -2121553579, now seen corresponding path program 1 times [2020-09-25 04:21:56,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:56,585 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2074340460] [2020-09-25 04:21:56,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:56,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:56,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:56,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:56,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:56,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:57,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:57,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-09-25 04:21:57,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:21:57,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1282 [2020-09-25 04:21:57,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:57,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:57,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:21:57,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 189 [2020-09-25 04:21:57,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 04:21:57,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:57,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:21:57,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:57,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:57,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:57,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:21:57,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:57,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:21:57,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:57,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:57,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:57,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:57,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:57,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:57,989 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 04:21:57,990 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2074340460] [2020-09-25 04:21:57,990 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:21:57,990 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:21:57,991 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510247330] [2020-09-25 04:21:57,992 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:21:57,993 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:21:57,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:21:57,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:21:57,994 INFO L87 Difference]: Start difference. First operand 735 states and 891 transitions. Second operand 3 states. [2020-09-25 04:21:58,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:21:58,078 INFO L93 Difference]: Finished difference Result 1321 states and 1634 transitions. [2020-09-25 04:21:58,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:21:58,079 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 208 [2020-09-25 04:21:58,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:21:58,086 INFO L225 Difference]: With dead ends: 1321 [2020-09-25 04:21:58,086 INFO L226 Difference]: Without dead ends: 928 [2020-09-25 04:21:58,087 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 04:21:58,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2020-09-25 04:21:58,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 928. [2020-09-25 04:21:58,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 928 states. [2020-09-25 04:21:58,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1135 transitions. [2020-09-25 04:21:58,133 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1135 transitions. Word has length 208 [2020-09-25 04:21:58,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:21:58,134 INFO L479 AbstractCegarLoop]: Abstraction has 928 states and 1135 transitions. [2020-09-25 04:21:58,134 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:21:58,135 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1135 transitions. [2020-09-25 04:21:58,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-09-25 04:21:58,141 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:58,142 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 04:21:58,142 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:21:58,142 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:58,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:58,143 INFO L82 PathProgramCache]: Analyzing trace with hash -951989695, now seen corresponding path program 1 times [2020-09-25 04:21:58,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:58,144 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1666893245] [2020-09-25 04:21:58,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:58,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:58,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:58,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:58,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:58,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:59,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:59,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:01,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:01,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 241 [2020-09-25 04:22:01,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 04:22:01,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3324 [2020-09-25 04:22:01,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:01,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:01,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:01,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 214 [2020-09-25 04:22:01,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 04:22:01,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:22:01,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:01,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:01,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:01,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:01,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:01,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:01,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:22:01,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:01,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:01,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:01,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:01,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:01,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 04:22:01,714 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 04:22:01,716 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1666893245] [2020-09-25 04:22:01,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:01,717 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:01,717 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440448306] [2020-09-25 04:22:01,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:01,718 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:01,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:01,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:01,720 INFO L87 Difference]: Start difference. First operand 928 states and 1135 transitions. Second operand 3 states. [2020-09-25 04:22:01,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:01,812 INFO L93 Difference]: Finished difference Result 1707 states and 2122 transitions. [2020-09-25 04:22:01,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:01,813 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 232 [2020-09-25 04:22:01,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:01,820 INFO L225 Difference]: With dead ends: 1707 [2020-09-25 04:22:01,821 INFO L226 Difference]: Without dead ends: 1121 [2020-09-25 04:22:01,822 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 04:22:01,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1121 states. [2020-09-25 04:22:01,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1121 to 1121. [2020-09-25 04:22:01,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1121 states. [2020-09-25 04:22:01,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1121 states to 1121 states and 1380 transitions. [2020-09-25 04:22:01,863 INFO L78 Accepts]: Start accepts. Automaton has 1121 states and 1380 transitions. Word has length 232 [2020-09-25 04:22:01,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:01,864 INFO L479 AbstractCegarLoop]: Abstraction has 1121 states and 1380 transitions. [2020-09-25 04:22:01,865 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:01,865 INFO L276 IsEmpty]: Start isEmpty. Operand 1121 states and 1380 transitions. [2020-09-25 04:22:01,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-09-25 04:22:01,875 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:01,875 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 04:22:01,875 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:22:01,876 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:01,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:01,876 INFO L82 PathProgramCache]: Analyzing trace with hash -1507788610, now seen corresponding path program 1 times [2020-09-25 04:22:01,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:01,877 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1752395802] [2020-09-25 04:22:01,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:01,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:01,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:01,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:02,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:03,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:03,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-09-25 04:22:03,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:22:03,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1294 [2020-09-25 04:22:03,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:03,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:03,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:03,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 192 [2020-09-25 04:22:03,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 04:22:03,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:03,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:03,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:03,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:03,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:03,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:03,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:03,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:22:03,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:03,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:03,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:03,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:03,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:03,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:03,355 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 04:22:03,356 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1752395802] [2020-09-25 04:22:03,356 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:03,356 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:03,357 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536510596] [2020-09-25 04:22:03,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:03,358 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:03,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:03,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:03,359 INFO L87 Difference]: Start difference. First operand 1121 states and 1380 transitions. Second operand 3 states. [2020-09-25 04:22:03,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:03,622 INFO L93 Difference]: Finished difference Result 2403 states and 3107 transitions. [2020-09-25 04:22:03,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:03,623 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 257 [2020-09-25 04:22:03,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:03,631 INFO L225 Difference]: With dead ends: 2403 [2020-09-25 04:22:03,631 INFO L226 Difference]: Without dead ends: 1426 [2020-09-25 04:22:03,633 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 04:22:03,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2020-09-25 04:22:03,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 1341. [2020-09-25 04:22:03,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1341 states. [2020-09-25 04:22:03,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1341 states to 1341 states and 1645 transitions. [2020-09-25 04:22:03,672 INFO L78 Accepts]: Start accepts. Automaton has 1341 states and 1645 transitions. Word has length 257 [2020-09-25 04:22:03,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:03,672 INFO L479 AbstractCegarLoop]: Abstraction has 1341 states and 1645 transitions. [2020-09-25 04:22:03,672 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:03,673 INFO L276 IsEmpty]: Start isEmpty. Operand 1341 states and 1645 transitions. [2020-09-25 04:22:03,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-09-25 04:22:03,678 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:03,679 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 04:22:03,679 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 04:22:03,679 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:03,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:03,680 INFO L82 PathProgramCache]: Analyzing trace with hash -1870764962, now seen corresponding path program 1 times [2020-09-25 04:22:03,680 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:03,680 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [638951128] [2020-09-25 04:22:03,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:03,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:03,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:03,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:04,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:04,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-09-25 04:22:04,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:22:04,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 541 [2020-09-25 04:22:04,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:04,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:04,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:22:04,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 04:22:04,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-09-25 04:22:04,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:04,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:04,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:04,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:04,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:04,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:04,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:04,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:22:04,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:04,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:04,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:04,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:04,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:04,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:04,415 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 04:22:04,416 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [638951128] [2020-09-25 04:22:04,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:04,416 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 04:22:04,417 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972054889] [2020-09-25 04:22:04,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 04:22:04,417 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:04,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 04:22:04,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:22:04,418 INFO L87 Difference]: Start difference. First operand 1341 states and 1645 transitions. Second operand 6 states. [2020-09-25 04:22:04,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:04,650 INFO L93 Difference]: Finished difference Result 2669 states and 3333 transitions. [2020-09-25 04:22:04,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 04:22:04,651 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 257 [2020-09-25 04:22:04,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:04,658 INFO L225 Difference]: With dead ends: 2669 [2020-09-25 04:22:04,658 INFO L226 Difference]: Without dead ends: 1477 [2020-09-25 04:22:04,661 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 04:22:04,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1477 states. [2020-09-25 04:22:04,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1477 to 1431. [2020-09-25 04:22:04,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1431 states. [2020-09-25 04:22:04,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1431 states to 1431 states and 1785 transitions. [2020-09-25 04:22:04,701 INFO L78 Accepts]: Start accepts. Automaton has 1431 states and 1785 transitions. Word has length 257 [2020-09-25 04:22:04,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:04,702 INFO L479 AbstractCegarLoop]: Abstraction has 1431 states and 1785 transitions. [2020-09-25 04:22:04,702 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 04:22:04,702 INFO L276 IsEmpty]: Start isEmpty. Operand 1431 states and 1785 transitions. [2020-09-25 04:22:04,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2020-09-25 04:22:04,708 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:04,708 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 04:22:04,708 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 04:22:04,709 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:04,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:04,709 INFO L82 PathProgramCache]: Analyzing trace with hash -225222432, now seen corresponding path program 1 times [2020-09-25 04:22:04,709 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:04,710 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [418780448] [2020-09-25 04:22:04,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:04,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:04,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:04,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:05,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:05,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 267 [2020-09-25 04:22:05,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:22:05,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 988 [2020-09-25 04:22:05,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:05,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:05,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:22:05,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 04:22:05,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-09-25 04:22:05,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:05,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:05,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:05,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:05,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:05,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:05,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:05,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:22:05,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:05,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:05,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:05,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:05,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:05,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:05,918 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 04:22:05,919 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [418780448] [2020-09-25 04:22:05,919 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:05,919 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 04:22:05,920 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129078963] [2020-09-25 04:22:05,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 04:22:05,920 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:05,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 04:22:05,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:22:05,921 INFO L87 Difference]: Start difference. First operand 1431 states and 1785 transitions. Second operand 6 states. [2020-09-25 04:22:06,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:06,223 INFO L93 Difference]: Finished difference Result 2822 states and 3566 transitions. [2020-09-25 04:22:06,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 04:22:06,223 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 258 [2020-09-25 04:22:06,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:06,230 INFO L225 Difference]: With dead ends: 2822 [2020-09-25 04:22:06,231 INFO L226 Difference]: Without dead ends: 1512 [2020-09-25 04:22:06,233 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 04:22:06,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2020-09-25 04:22:06,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1437. [2020-09-25 04:22:06,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1437 states. [2020-09-25 04:22:06,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1437 states to 1437 states and 1793 transitions. [2020-09-25 04:22:06,271 INFO L78 Accepts]: Start accepts. Automaton has 1437 states and 1793 transitions. Word has length 258 [2020-09-25 04:22:06,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:06,271 INFO L479 AbstractCegarLoop]: Abstraction has 1437 states and 1793 transitions. [2020-09-25 04:22:06,272 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 04:22:06,272 INFO L276 IsEmpty]: Start isEmpty. Operand 1437 states and 1793 transitions. [2020-09-25 04:22:06,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2020-09-25 04:22:06,278 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:06,278 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 04:22:06,279 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 04:22:06,279 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:06,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:06,279 INFO L82 PathProgramCache]: Analyzing trace with hash 488549191, now seen corresponding path program 1 times [2020-09-25 04:22:06,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:06,280 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [714689269] [2020-09-25 04:22:06,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:06,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:06,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:06,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:07,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:07,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 285 [2020-09-25 04:22:07,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:22:07,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1187 [2020-09-25 04:22:07,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:07,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:07,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:22:07,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 04:22:07,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-09-25 04:22:07,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:07,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:07,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:07,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:07,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:07,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:07,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:07,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:22:07,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:07,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:07,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:07,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:07,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:07,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:07,748 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 04:22:07,748 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [714689269] [2020-09-25 04:22:07,748 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:07,749 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 04:22:07,749 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086871945] [2020-09-25 04:22:07,750 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 04:22:07,750 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:07,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 04:22:07,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:22:07,750 INFO L87 Difference]: Start difference. First operand 1437 states and 1793 transitions. Second operand 6 states. [2020-09-25 04:22:08,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:08,021 INFO L93 Difference]: Finished difference Result 2719 states and 3425 transitions. [2020-09-25 04:22:08,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 04:22:08,022 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 276 [2020-09-25 04:22:08,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:08,033 INFO L225 Difference]: With dead ends: 2719 [2020-09-25 04:22:08,033 INFO L226 Difference]: Without dead ends: 1434 [2020-09-25 04:22:08,038 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 04:22:08,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1434 states. [2020-09-25 04:22:08,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1434 to 1434. [2020-09-25 04:22:08,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1434 states. [2020-09-25 04:22:08,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1434 states to 1434 states and 1788 transitions. [2020-09-25 04:22:08,105 INFO L78 Accepts]: Start accepts. Automaton has 1434 states and 1788 transitions. Word has length 276 [2020-09-25 04:22:08,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:08,106 INFO L479 AbstractCegarLoop]: Abstraction has 1434 states and 1788 transitions. [2020-09-25 04:22:08,107 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 04:22:08,107 INFO L276 IsEmpty]: Start isEmpty. Operand 1434 states and 1788 transitions. [2020-09-25 04:22:08,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2020-09-25 04:22:08,120 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:08,121 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 04:22:08,122 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 04:22:08,122 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:08,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:08,123 INFO L82 PathProgramCache]: Analyzing trace with hash -802173269, now seen corresponding path program 1 times [2020-09-25 04:22:08,123 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:08,124 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [476592003] [2020-09-25 04:22:08,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:08,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 04:22:08,259 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 04:22:08,259 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 04:22:08,269 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 04:22:08,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 04:22:08 BoogieIcfgContainer [2020-09-25 04:22:08,337 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 04:22:08,349 INFO L168 Benchmark]: Toolchain (without parser) took 17440.49 ms. Allocated memory was 142.6 MB in the beginning and 432.0 MB in the end (delta: 289.4 MB). Free memory was 102.5 MB in the beginning and 379.4 MB in the end (delta: -276.9 MB). Peak memory consumption was 304.3 MB. Max. memory is 7.1 GB. [2020-09-25 04:22:08,350 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 142.6 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 04:22:08,352 INFO L168 Benchmark]: CACSL2BoogieTranslator took 567.69 ms. Allocated memory was 142.6 MB in the beginning and 204.5 MB in the end (delta: 61.9 MB). Free memory was 101.9 MB in the beginning and 180.2 MB in the end (delta: -78.3 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2020-09-25 04:22:08,353 INFO L168 Benchmark]: Boogie Preprocessor took 59.40 ms. Allocated memory is still 204.5 MB. Free memory was 180.2 MB in the beginning and 177.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-09-25 04:22:08,354 INFO L168 Benchmark]: RCFGBuilder took 1073.37 ms. Allocated memory is still 204.5 MB. Free memory was 177.5 MB in the beginning and 112.6 MB in the end (delta: 64.9 MB). Peak memory consumption was 64.9 MB. Max. memory is 7.1 GB. [2020-09-25 04:22:08,358 INFO L168 Benchmark]: TraceAbstraction took 15725.21 ms. Allocated memory was 204.5 MB in the beginning and 432.0 MB in the end (delta: 227.5 MB). Free memory was 111.9 MB in the beginning and 379.4 MB in the end (delta: -267.5 MB). Peak memory consumption was 251.8 MB. Max. memory is 7.1 GB. [2020-09-25 04:22:08,369 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 142.6 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 567.69 ms. Allocated memory was 142.6 MB in the beginning and 204.5 MB in the end (delta: 61.9 MB). Free memory was 101.9 MB in the beginning and 180.2 MB in the end (delta: -78.3 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 59.40 ms. Allocated memory is still 204.5 MB. Free memory was 180.2 MB in the beginning and 177.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1073.37 ms. Allocated memory is still 204.5 MB. Free memory was 177.5 MB in the beginning and 112.6 MB in the end (delta: 64.9 MB). Peak memory consumption was 64.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 15725.21 ms. Allocated memory was 204.5 MB in the beginning and 432.0 MB in the end (delta: 227.5 MB). Free memory was 111.9 MB in the beginning and 379.4 MB in the end (delta: -267.5 MB). Peak memory consumption was 251.8 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: 15.5s, 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, 0.7s 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, 0.4s SatisfiabilityAnalysisTime, 12.1s 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...