/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_1.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:47:45,975 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:47:45,980 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:47:46,027 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:47:46,027 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:47:46,035 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:47:46,037 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:47:46,041 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:47:46,045 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:47:46,048 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:47:46,049 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:47:46,050 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:47:46,050 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:47:46,053 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:47:46,056 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:47:46,058 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:47:46,060 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:47:46,061 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:47:46,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:47:46,071 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:47:46,074 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:47:46,075 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:47:46,077 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:47:46,077 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:47:46,090 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:47:46,091 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:47:46,096 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:47:46,097 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:47:46,098 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:47:46,102 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:47:46,102 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:47:46,103 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:47:46,104 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:47:46,107 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:47:46,109 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:47:46,110 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:47:46,110 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:47:46,112 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:47:46,112 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:47:46,113 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:47:46,114 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:47:46,115 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 07:47:46,164 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:47:46,164 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:47:46,167 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:47:46,167 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:47:46,167 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:47:46,167 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:47:46,168 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:47:46,168 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:47:46,168 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:47:46,169 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:47:46,170 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:47:46,170 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:47:46,170 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:47:46,171 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:47:46,171 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:47:46,171 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:47:46,171 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:47:46,172 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:47:46,172 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:47:46,172 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:47:46,172 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:47:46,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:47:46,173 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:47:46,173 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:47:46,173 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:47:46,174 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:47:46,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:47:46,174 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:47:46,174 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:47:46,174 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:47:46,648 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:47:46,673 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:47:46,680 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:47:46,682 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:47:46,683 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:47:46,684 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_1.cil-2.c [2020-09-25 07:47:46,780 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e05be9ca2/487dd78da45a49e5b3db363668f1439d/FLAGe3c7ef763 [2020-09-25 07:47:47,363 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:47:47,364 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_clnt_1.cil-2.c [2020-09-25 07:47:47,378 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e05be9ca2/487dd78da45a49e5b3db363668f1439d/FLAGe3c7ef763 [2020-09-25 07:47:47,685 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e05be9ca2/487dd78da45a49e5b3db363668f1439d [2020-09-25 07:47:47,700 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:47:47,706 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:47:47,709 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:47:47,710 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:47:47,714 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:47:47,715 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:47:47" (1/1) ... [2020-09-25 07:47:47,719 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ee2931e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:47:47, skipping insertion in model container [2020-09-25 07:47:47,720 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:47:47" (1/1) ... [2020-09-25 07:47:47,728 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:47:47,795 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:47:48,095 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:47:48,104 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:47:48,266 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:47:48,284 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:47:48,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:47:48 WrapperNode [2020-09-25 07:47:48,285 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:47:48,286 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:47:48,286 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:47:48,286 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:47:48,304 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:47:48" (1/1) ... [2020-09-25 07:47:48,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:47:48" (1/1) ... [2020-09-25 07:47:48,316 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:47:48" (1/1) ... [2020-09-25 07:47:48,316 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:47:48" (1/1) ... [2020-09-25 07:47:48,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:47:48" (1/1) ... [2020-09-25 07:47:48,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:47:48" (1/1) ... [2020-09-25 07:47:48,362 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:47:48" (1/1) ... [2020-09-25 07:47:48,368 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:47:48,369 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:47:48,369 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:47:48,369 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:47:48,371 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:47:48" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:47:48,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:47:48,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:47:48,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-09-25 07:47:48,443 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:47:48,443 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:47:48,443 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 07:47:48,444 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:47:48,444 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-25 07:47:48,444 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-09-25 07:47:48,444 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:47:48,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:47:48,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:47:48,633 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 07:47:49,266 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-09-25 07:47:49,267 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-09-25 07:47:49,297 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:47:49,298 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 07:47:49,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:47:49 BoogieIcfgContainer [2020-09-25 07:47:49,306 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:47:49,308 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:47:49,308 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:47:49,312 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:47:49,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:47:47" (1/3) ... [2020-09-25 07:47:49,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c26766 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:47:49, skipping insertion in model container [2020-09-25 07:47:49,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:47:48" (2/3) ... [2020-09-25 07:47:49,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c26766 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:47:49, skipping insertion in model container [2020-09-25 07:47:49,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:47:49" (3/3) ... [2020-09-25 07:47:49,317 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_1.cil-2.c [2020-09-25 07:47:49,330 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:47:49,342 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:47:49,367 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:47:49,407 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:47:49,408 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:47:49,408 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:47:49,408 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:47:49,408 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:47:49,409 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:47:49,409 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:47:49,409 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:47:49,443 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states. [2020-09-25 07:47:49,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 07:47:49,462 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:47:49,464 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:47:49,464 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:47:49,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:47:49,474 INFO L82 PathProgramCache]: Analyzing trace with hash -1836119895, now seen corresponding path program 1 times [2020-09-25 07:47:49,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:47:49,487 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [700795693] [2020-09-25 07:47:49,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:47:49,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:49,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:50,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:50,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:50,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:50,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-09-25 07:47:50,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:47:50,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 966 [2020-09-25 07:47:50,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:50,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:50,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:47:50,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 134 [2020-09-25 07:47:50,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 07:47:50,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 07:47:50,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:47:50,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:50,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:50,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:50,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:47:50,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:50,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:47:50,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:50,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:50,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:47:50,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:50,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:47:50,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:50,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:47:50,880 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [700795693] [2020-09-25 07:47:50,883 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:47:50,884 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:47:50,885 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276916234] [2020-09-25 07:47:50,893 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:47:50,893 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:47:50,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:47:50,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:47:50,915 INFO L87 Difference]: Start difference. First operand 383 states. Second operand 3 states. [2020-09-25 07:47:51,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:47:51,071 INFO L93 Difference]: Finished difference Result 849 states and 1106 transitions. [2020-09-25 07:47:51,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:47:51,074 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 160 [2020-09-25 07:47:51,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:47:51,112 INFO L225 Difference]: With dead ends: 849 [2020-09-25 07:47:51,112 INFO L226 Difference]: Without dead ends: 533 [2020-09-25 07:47:51,124 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 07:47:51,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2020-09-25 07:47:51,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 533. [2020-09-25 07:47:51,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 533 states. [2020-09-25 07:47:51,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 639 transitions. [2020-09-25 07:47:51,244 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 639 transitions. Word has length 160 [2020-09-25 07:47:51,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:47:51,246 INFO L479 AbstractCegarLoop]: Abstraction has 533 states and 639 transitions. [2020-09-25 07:47:51,246 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:47:51,246 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 639 transitions. [2020-09-25 07:47:51,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-09-25 07:47:51,251 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:47:51,252 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] [2020-09-25 07:47:51,252 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:47:51,252 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:47:51,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:47:51,253 INFO L82 PathProgramCache]: Analyzing trace with hash 2087119921, now seen corresponding path program 1 times [2020-09-25 07:47:51,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:47:51,254 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [106429069] [2020-09-25 07:47:51,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:47:51,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:51,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:51,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:51,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:51,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:51,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:52,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:52,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-09-25 07:47:52,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:47:52,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1173 [2020-09-25 07:47:52,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:52,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:52,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:47:52,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 161 [2020-09-25 07:47:52,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 07:47:52,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:52,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:47:52,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:52,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:52,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:52,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:47:52,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:52,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:47:52,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:52,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:52,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:47:52,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:52,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:47:52,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:52,539 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 07:47:52,541 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [106429069] [2020-09-25 07:47:52,541 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:47:52,542 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:47:52,542 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903267982] [2020-09-25 07:47:52,544 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:47:52,545 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:47:52,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:47:52,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:47:52,546 INFO L87 Difference]: Start difference. First operand 533 states and 639 transitions. Second operand 3 states. [2020-09-25 07:47:52,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:47:52,636 INFO L93 Difference]: Finished difference Result 924 states and 1137 transitions. [2020-09-25 07:47:52,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:47:52,637 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2020-09-25 07:47:52,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:47:52,643 INFO L225 Difference]: With dead ends: 924 [2020-09-25 07:47:52,643 INFO L226 Difference]: Without dead ends: 725 [2020-09-25 07:47:52,645 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 07:47:52,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2020-09-25 07:47:52,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 725. [2020-09-25 07:47:52,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 725 states. [2020-09-25 07:47:52,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 881 transitions. [2020-09-25 07:47:52,683 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 881 transitions. Word has length 180 [2020-09-25 07:47:52,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:47:52,684 INFO L479 AbstractCegarLoop]: Abstraction has 725 states and 881 transitions. [2020-09-25 07:47:52,684 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:47:52,685 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 881 transitions. [2020-09-25 07:47:52,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-09-25 07:47:52,690 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:47:52,690 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] [2020-09-25 07:47:52,690 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:47:52,691 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:47:52,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:47:52,691 INFO L82 PathProgramCache]: Analyzing trace with hash -1945874443, now seen corresponding path program 1 times [2020-09-25 07:47:52,692 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:47:52,692 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1052398955] [2020-09-25 07:47:52,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:47:52,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:52,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:52,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:53,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:53,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:53,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:53,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 210 [2020-09-25 07:47:53,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:47:53,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1030 [2020-09-25 07:47:53,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:53,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:53,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:47:53,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 182 [2020-09-25 07:47:53,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 07:47:53,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:53,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:47:53,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:53,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:53,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:53,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:47:53,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:53,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:47:53,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:53,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:53,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:47:53,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:53,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:47:53,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:53,842 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 07:47:53,843 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1052398955] [2020-09-25 07:47:53,844 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:47:53,845 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:47:53,845 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738497544] [2020-09-25 07:47:53,848 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:47:53,849 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:47:53,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:47:53,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:47:53,850 INFO L87 Difference]: Start difference. First operand 725 states and 881 transitions. Second operand 3 states. [2020-09-25 07:47:53,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:47:53,945 INFO L93 Difference]: Finished difference Result 1308 states and 1621 transitions. [2020-09-25 07:47:53,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:47:53,947 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 201 [2020-09-25 07:47:53,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:47:53,955 INFO L225 Difference]: With dead ends: 1308 [2020-09-25 07:47:53,956 INFO L226 Difference]: Without dead ends: 917 [2020-09-25 07:47:53,957 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 07:47:53,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2020-09-25 07:47:54,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 917. [2020-09-25 07:47:54,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 917 states. [2020-09-25 07:47:54,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1124 transitions. [2020-09-25 07:47:54,014 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1124 transitions. Word has length 201 [2020-09-25 07:47:54,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:47:54,015 INFO L479 AbstractCegarLoop]: Abstraction has 917 states and 1124 transitions. [2020-09-25 07:47:54,015 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:47:54,015 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1124 transitions. [2020-09-25 07:47:54,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-09-25 07:47:54,021 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:47:54,022 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] [2020-09-25 07:47:54,022 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:47:54,022 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:47:54,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:47:54,023 INFO L82 PathProgramCache]: Analyzing trace with hash 1938276821, now seen corresponding path program 1 times [2020-09-25 07:47:54,023 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:47:54,024 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1231789174] [2020-09-25 07:47:54,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:47:54,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:54,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:54,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:54,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:54,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:54,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:54,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:56,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:56,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 233 [2020-09-25 07:47:56,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 07:47:56,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2349 [2020-09-25 07:47:56,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:56,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:56,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:47:56,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 206 [2020-09-25 07:47:56,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 07:47:56,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:47:56,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:47:56,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:56,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:56,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:56,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:47:56,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:56,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:47:56,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:56,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:56,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:47:56,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:56,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:47:56,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 07:47:56,505 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 07:47:56,507 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1231789174] [2020-09-25 07:47:56,508 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:47:56,508 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:47:56,509 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296759303] [2020-09-25 07:47:56,509 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:47:56,510 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:47:56,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:47:56,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:47:56,511 INFO L87 Difference]: Start difference. First operand 917 states and 1124 transitions. Second operand 3 states. [2020-09-25 07:47:56,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:47:56,588 INFO L93 Difference]: Finished difference Result 1692 states and 2107 transitions. [2020-09-25 07:47:56,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:47:56,589 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 224 [2020-09-25 07:47:56,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:47:56,595 INFO L225 Difference]: With dead ends: 1692 [2020-09-25 07:47:56,596 INFO L226 Difference]: Without dead ends: 1109 [2020-09-25 07:47:56,597 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 07:47:56,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2020-09-25 07:47:56,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 1109. [2020-09-25 07:47:56,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1109 states. [2020-09-25 07:47:56,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1109 states to 1109 states and 1368 transitions. [2020-09-25 07:47:56,633 INFO L78 Accepts]: Start accepts. Automaton has 1109 states and 1368 transitions. Word has length 224 [2020-09-25 07:47:56,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:47:56,634 INFO L479 AbstractCegarLoop]: Abstraction has 1109 states and 1368 transitions. [2020-09-25 07:47:56,634 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:47:56,635 INFO L276 IsEmpty]: Start isEmpty. Operand 1109 states and 1368 transitions. [2020-09-25 07:47:56,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-09-25 07:47:56,640 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:47:56,641 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] [2020-09-25 07:47:56,641 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:47:56,641 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:47:56,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:47:56,641 INFO L82 PathProgramCache]: Analyzing trace with hash 54315530, now seen corresponding path program 1 times [2020-09-25 07:47:56,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:47:56,642 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2010401206] [2020-09-25 07:47:56,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:47:56,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:56,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:56,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:56,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:57,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:57,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-09-25 07:47:57,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:47:57,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1094 [2020-09-25 07:47:57,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:57,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:57,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:47:57,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 185 [2020-09-25 07:47:57,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 07:47:57,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:57,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:47:57,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:57,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:57,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:57,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:47:57,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:57,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:47:57,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:57,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:57,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:47:57,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:57,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:47:57,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 07:47:57,958 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 07:47:57,959 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2010401206] [2020-09-25 07:47:57,959 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:47:57,960 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:47:57,960 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521163046] [2020-09-25 07:47:57,960 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:47:57,961 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:47:57,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:47:57,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:47:57,962 INFO L87 Difference]: Start difference. First operand 1109 states and 1368 transitions. Second operand 3 states. [2020-09-25 07:47:58,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:47:58,277 INFO L93 Difference]: Finished difference Result 2386 states and 3090 transitions. [2020-09-25 07:47:58,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:47:58,277 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 249 [2020-09-25 07:47:58,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:47:58,296 INFO L225 Difference]: With dead ends: 2386 [2020-09-25 07:47:58,296 INFO L226 Difference]: Without dead ends: 1414 [2020-09-25 07:47:58,300 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 07:47:58,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1414 states. [2020-09-25 07:47:58,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1414 to 1329. [2020-09-25 07:47:58,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1329 states. [2020-09-25 07:47:58,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1329 states to 1329 states and 1633 transitions. [2020-09-25 07:47:58,355 INFO L78 Accepts]: Start accepts. Automaton has 1329 states and 1633 transitions. Word has length 249 [2020-09-25 07:47:58,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:47:58,356 INFO L479 AbstractCegarLoop]: Abstraction has 1329 states and 1633 transitions. [2020-09-25 07:47:58,356 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:47:58,356 INFO L276 IsEmpty]: Start isEmpty. Operand 1329 states and 1633 transitions. [2020-09-25 07:47:58,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-09-25 07:47:58,362 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:47:58,362 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] [2020-09-25 07:47:58,363 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:47:58,363 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:47:58,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:47:58,363 INFO L82 PathProgramCache]: Analyzing trace with hash -1481414038, now seen corresponding path program 1 times [2020-09-25 07:47:58,363 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:47:58,364 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2123257508] [2020-09-25 07:47:58,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:47:58,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:58,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:58,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:58,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:58,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-09-25 07:47:58,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:47:58,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 463 [2020-09-25 07:47:58,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:58,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:58,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:47:58,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 07:47:58,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-09-25 07:47:58,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:58,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:47:58,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:58,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:58,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:58,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:47:58,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:58,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:47:58,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:58,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:58,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:47:58,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:58,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:47:58,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 07:47:59,083 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 07:47:59,084 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2123257508] [2020-09-25 07:47:59,085 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:47:59,086 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:47:59,086 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604752742] [2020-09-25 07:47:59,087 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:47:59,087 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:47:59,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:47:59,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:47:59,089 INFO L87 Difference]: Start difference. First operand 1329 states and 1633 transitions. Second operand 5 states. [2020-09-25 07:47:59,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:47:59,546 INFO L93 Difference]: Finished difference Result 2625 states and 3270 transitions. [2020-09-25 07:47:59,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:47:59,547 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 249 [2020-09-25 07:47:59,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:47:59,556 INFO L225 Difference]: With dead ends: 2625 [2020-09-25 07:47:59,556 INFO L226 Difference]: Without dead ends: 1410 [2020-09-25 07:47:59,560 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:47:59,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1410 states. [2020-09-25 07:47:59,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1410 to 1335. [2020-09-25 07:47:59,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1335 states. [2020-09-25 07:47:59,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1335 states to 1335 states and 1641 transitions. [2020-09-25 07:47:59,625 INFO L78 Accepts]: Start accepts. Automaton has 1335 states and 1641 transitions. Word has length 249 [2020-09-25 07:47:59,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:47:59,626 INFO L479 AbstractCegarLoop]: Abstraction has 1335 states and 1641 transitions. [2020-09-25 07:47:59,627 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:47:59,627 INFO L276 IsEmpty]: Start isEmpty. Operand 1335 states and 1641 transitions. [2020-09-25 07:47:59,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2020-09-25 07:47:59,639 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:47:59,639 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] [2020-09-25 07:47:59,639 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 07:47:59,640 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:47:59,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:47:59,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1844265594, now seen corresponding path program 1 times [2020-09-25 07:47:59,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:47:59,641 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [85793214] [2020-09-25 07:47:59,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:47:59,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:59,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:59,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:00,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:00,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-09-25 07:48:00,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:48:00,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 564 [2020-09-25 07:48:00,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:00,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:00,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:48:00,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 07:48:00,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-09-25 07:48:00,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:00,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:00,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:00,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:00,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:00,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:48:00,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:00,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:48:00,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:00,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:00,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:00,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:00,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:00,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:00,417 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 07:48:00,418 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [85793214] [2020-09-25 07:48:00,418 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:48:00,418 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:48:00,420 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305868414] [2020-09-25 07:48:00,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:48:00,421 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:48:00,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:48:00,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:48:00,422 INFO L87 Difference]: Start difference. First operand 1335 states and 1641 transitions. Second operand 5 states. [2020-09-25 07:48:00,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:48:00,623 INFO L93 Difference]: Finished difference Result 2522 states and 3128 transitions. [2020-09-25 07:48:00,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:48:00,624 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 268 [2020-09-25 07:48:00,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:48:00,631 INFO L225 Difference]: With dead ends: 2522 [2020-09-25 07:48:00,631 INFO L226 Difference]: Without dead ends: 1332 [2020-09-25 07:48:00,634 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:48:00,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1332 states. [2020-09-25 07:48:00,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1332 to 1332. [2020-09-25 07:48:00,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1332 states. [2020-09-25 07:48:00,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1332 states to 1332 states and 1636 transitions. [2020-09-25 07:48:00,670 INFO L78 Accepts]: Start accepts. Automaton has 1332 states and 1636 transitions. Word has length 268 [2020-09-25 07:48:00,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:48:00,670 INFO L479 AbstractCegarLoop]: Abstraction has 1332 states and 1636 transitions. [2020-09-25 07:48:00,670 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:48:00,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1332 states and 1636 transitions. [2020-09-25 07:48:00,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2020-09-25 07:48:00,676 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:48:00,677 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] [2020-09-25 07:48:00,677 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 07:48:00,677 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:48:00,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:48:00,678 INFO L82 PathProgramCache]: Analyzing trace with hash -1703791530, now seen corresponding path program 1 times [2020-09-25 07:48:00,678 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:48:00,678 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1950594570] [2020-09-25 07:48:00,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:48:00,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 07:48:00,750 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 07:48:00,750 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 07:48:00,759 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 07:48:00,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 07:48:00 BoogieIcfgContainer [2020-09-25 07:48:00,811 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 07:48:00,815 INFO L168 Benchmark]: Toolchain (without parser) took 13111.53 ms. Allocated memory was 143.7 MB in the beginning and 441.5 MB in the end (delta: 297.8 MB). Free memory was 99.8 MB in the beginning and 394.3 MB in the end (delta: -294.5 MB). Peak memory consumption was 251.0 MB. Max. memory is 7.1 GB. [2020-09-25 07:48:00,820 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 143.7 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 07:48:00,821 INFO L168 Benchmark]: CACSL2BoogieTranslator took 575.97 ms. Allocated memory was 143.7 MB in the beginning and 202.4 MB in the end (delta: 58.7 MB). Free memory was 99.1 MB in the beginning and 178.1 MB in the end (delta: -78.9 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2020-09-25 07:48:00,822 INFO L168 Benchmark]: Boogie Preprocessor took 83.01 ms. Allocated memory is still 202.4 MB. Free memory was 178.1 MB in the beginning and 175.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-09-25 07:48:00,823 INFO L168 Benchmark]: RCFGBuilder took 937.51 ms. Allocated memory is still 202.4 MB. Free memory was 175.3 MB in the beginning and 111.2 MB in the end (delta: 64.1 MB). Peak memory consumption was 64.1 MB. Max. memory is 7.1 GB. [2020-09-25 07:48:00,824 INFO L168 Benchmark]: TraceAbstraction took 11503.03 ms. Allocated memory was 202.4 MB in the beginning and 441.5 MB in the end (delta: 239.1 MB). Free memory was 111.2 MB in the beginning and 394.3 MB in the end (delta: -283.1 MB). Peak memory consumption was 203.7 MB. Max. memory is 7.1 GB. [2020-09-25 07:48:00,837 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 143.7 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 575.97 ms. Allocated memory was 143.7 MB in the beginning and 202.4 MB in the end (delta: 58.7 MB). Free memory was 99.1 MB in the beginning and 178.1 MB in the end (delta: -78.9 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 83.01 ms. Allocated memory is still 202.4 MB. Free memory was 178.1 MB in the beginning and 175.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 937.51 ms. Allocated memory is still 202.4 MB. Free memory was 175.3 MB in the beginning and 111.2 MB in the end (delta: 64.1 MB). Peak memory consumption was 64.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11503.03 ms. Allocated memory was 202.4 MB in the beginning and 441.5 MB in the end (delta: 239.1 MB). Free memory was 111.2 MB in the beginning and 394.3 MB in the end (delta: -283.1 MB). Peak memory consumption was 203.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 543]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L548] int s ; [L552] s = 12292 [L553] CALL ssl3_connect(12292) [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 = 1; [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 ; [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 ; [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] 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 ; [L76] s__state = initial_state [L77] blastFlag = 0 [L78] tmp = __VERIFIER_nondet_int() [L79] cb = 0 [L80] ret = -1 [L81] skip = 0 [L82] tmp___0 = 0 [L83] COND TRUE s__info_callback != 0 [L84] cb = s__info_callback [L90] s__in_handshake ++ [L91] COND FALSE !(tmp___1 - 12288) [L97] COND TRUE 1 [L99] state = s__state [L100] COND TRUE s__state == 12292 [L202] s__new_session = 1 [L203] s__state = 4096 [L204] s__ctx__stats__sess_connect_renegotiate ++ [L209] s__server = 0 [L210] COND TRUE cb != 0 [L214] __cil_tmp55 = s__version - 65280 [L215] COND FALSE !(__cil_tmp55 != 768) [L220] s__type = 4096 [L221] COND FALSE !(s__init_buf___0 == 0) [L233] COND FALSE !(! tmp___4) [L237] COND FALSE !(! tmp___5) [L241] s__state = 4368 [L242] s__ctx__stats__sess_connect ++ [L243] s__init_num = 0 [L515] COND FALSE !(! s__s3__tmp__reuse_message) [L532] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 4096) [L109] COND FALSE !(s__state == 20480) [L112] COND FALSE !(s__state == 4099) [L115] COND TRUE s__state == 4368 [L247] s__shutdown = 0 [L248] ret = __VERIFIER_nondet_int() [L249] COND TRUE blastFlag == 0 [L250] blastFlag = 1 [L252] COND FALSE !(ret <= 0) [L255] s__state = 4384 [L256] s__init_num = 0 [L257] COND TRUE s__bbio != s__wbio [L515] COND FALSE !(! s__s3__tmp__reuse_message) [L532] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 4096) [L109] COND FALSE !(s__state == 20480) [L112] COND FALSE !(s__state == 4099) [L115] COND FALSE !(s__state == 4368) [L118] COND FALSE !(s__state == 4369) [L121] COND TRUE s__state == 4384 [L263] ret = __VERIFIER_nondet_int() [L264] COND TRUE blastFlag == 1 [L265] blastFlag = 2 [L267] COND FALSE !(ret <= 0) [L270] COND FALSE !(\read(s__hit)) [L273] s__state = 4400 [L275] s__init_num = 0 [L515] COND FALSE !(! s__s3__tmp__reuse_message) [L532] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 4096) [L109] COND FALSE !(s__state == 20480) [L112] COND FALSE !(s__state == 4099) [L115] COND FALSE !(s__state == 4368) [L118] COND FALSE !(s__state == 4369) [L121] COND FALSE !(s__state == 4384) [L124] COND FALSE !(s__state == 4385) [L127] COND TRUE s__state == 4400 [L279] COND FALSE !(s__s3__tmp__new_cipher__algorithms - 256) [L282] ret = __VERIFIER_nondet_int() [L283] COND TRUE blastFlag == 2 [L284] blastFlag = 3 [L286] COND FALSE !(ret <= 0) [L290] s__state = 4416 [L291] s__init_num = 0 [L515] COND FALSE !(! s__s3__tmp__reuse_message) [L532] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 4096) [L109] COND FALSE !(s__state == 20480) [L112] COND FALSE !(s__state == 4099) [L115] COND FALSE !(s__state == 4368) [L118] COND FALSE !(s__state == 4369) [L121] COND FALSE !(s__state == 4384) [L124] COND FALSE !(s__state == 4385) [L127] COND FALSE !(s__state == 4400) [L130] COND FALSE !(s__state == 4401) [L133] COND TRUE s__state == 4416 [L295] ret = __VERIFIER_nondet_int() [L296] COND TRUE blastFlag == 3 [L297] blastFlag = 4 [L299] COND FALSE !(ret <= 0) [L302] s__state = 4432 [L303] s__init_num = 0 [L304] COND FALSE !(! tmp___6) [L515] COND FALSE !(! s__s3__tmp__reuse_message) [L532] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 4096) [L109] COND FALSE !(s__state == 20480) [L112] COND FALSE !(s__state == 4099) [L115] COND FALSE !(s__state == 4368) [L118] COND FALSE !(s__state == 4369) [L121] COND FALSE !(s__state == 4384) [L124] COND FALSE !(s__state == 4385) [L127] COND FALSE !(s__state == 4400) [L130] COND FALSE !(s__state == 4401) [L133] COND FALSE !(s__state == 4416) [L136] COND FALSE !(s__state == 4417) [L139] COND TRUE s__state == 4432 [L311] ret = __VERIFIER_nondet_int() [L312] COND TRUE blastFlag == 4 [L543] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 383 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.3s, OverallIterations: 8, TraceHistogramMax: 6, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2795 SDtfs, 2569 SDslu, 2399 SDs, 0 SdLazy, 435 SolverSat, 90 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1335occurred in iteration=6, 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, 7 MinimizatonAttempts, 160 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 8.2s InterpolantComputationTime, 1803 NumberOfCodeBlocks, 1803 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1524 ConstructedInterpolants, 0 QuantifiedInterpolants, 532204 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 462/462 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...