/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=1.0 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_2.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:56:45,010 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:56:45,014 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:56:45,057 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:56:45,057 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:56:45,063 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:56:45,064 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:56:45,069 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:56:45,074 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:56:45,075 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:56:45,077 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:56:45,078 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:56:45,078 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:56:45,081 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:56:45,082 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:56:45,084 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:56:45,085 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:56:45,088 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:56:45,090 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:56:45,092 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:56:45,095 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:56:45,096 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:56:45,097 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:56:45,098 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:56:45,105 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:56:45,105 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:56:45,105 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:56:45,109 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:56:45,110 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:56:45,112 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:56:45,112 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:56:45,113 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:56:45,114 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:56:45,114 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:56:45,116 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:56:45,116 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:56:45,117 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:56:45,117 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:56:45,117 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:56:45,118 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:56:45,119 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:56:45,120 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 08:56:45,170 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:56:45,170 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:56:45,173 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:56:45,173 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:56:45,173 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:56:45,173 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:56:45,174 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:56:45,174 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:56:45,174 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:56:45,174 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:56:45,175 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:56:45,176 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:56:45,176 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:56:45,176 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:56:45,176 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:56:45,177 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:56:45,177 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:56:45,177 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:56:45,177 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:56:45,178 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:56:45,178 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:56:45,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:56:45,178 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:56:45,178 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:56:45,179 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:56:45,179 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:56:45,179 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:56:45,179 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:56:45,179 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:56:45,180 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; [2020-09-25 08:56:45,633 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:56:45,658 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:56:45,663 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:56:45,665 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:56:45,665 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:56:45,666 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_2.cil-1.c [2020-09-25 08:56:45,754 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/21de124c9/2da5470c23654b18bff4ff9ef6dee353/FLAGd319cb58b [2020-09-25 08:56:46,354 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:56:46,355 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_clnt_2.cil-1.c [2020-09-25 08:56:46,374 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/21de124c9/2da5470c23654b18bff4ff9ef6dee353/FLAGd319cb58b [2020-09-25 08:56:46,626 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/21de124c9/2da5470c23654b18bff4ff9ef6dee353 [2020-09-25 08:56:46,638 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:56:46,644 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:56:46,645 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:56:46,646 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:56:46,650 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:56:46,651 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:56:46" (1/1) ... [2020-09-25 08:56:46,655 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cc704b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:56:46, skipping insertion in model container [2020-09-25 08:56:46,655 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:56:46" (1/1) ... [2020-09-25 08:56:46,664 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:56:46,709 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:56:47,008 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:56:47,014 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:56:47,160 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:56:47,178 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:56:47,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:56:47 WrapperNode [2020-09-25 08:56:47,179 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:56:47,180 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:56:47,180 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:56:47,180 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:56:47,197 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:56:47" (1/1) ... [2020-09-25 08:56:47,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:56:47" (1/1) ... [2020-09-25 08:56:47,207 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:56:47" (1/1) ... [2020-09-25 08:56:47,208 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:56:47" (1/1) ... [2020-09-25 08:56:47,220 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:56:47" (1/1) ... [2020-09-25 08:56:47,234 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:56:47" (1/1) ... [2020-09-25 08:56:47,237 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:56:47" (1/1) ... [2020-09-25 08:56:47,242 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:56:47,242 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:56:47,243 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:56:47,243 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:56:47,244 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:56:47" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:56:47,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:56:47,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:56:47,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-09-25 08:56:47,327 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:56:47,327 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:56:47,327 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 08:56:47,328 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:56:47,328 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-25 08:56:47,328 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-09-25 08:56:47,328 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:56:47,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:56:47,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:56:47,490 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 08:56:48,184 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-09-25 08:56:48,185 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-09-25 08:56:48,212 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:56:48,212 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 08:56:48,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:56:48 BoogieIcfgContainer [2020-09-25 08:56:48,220 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:56:48,222 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:56:48,222 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:56:48,226 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:56:48,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:56:46" (1/3) ... [2020-09-25 08:56:48,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b24a42f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:56:48, skipping insertion in model container [2020-09-25 08:56:48,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:56:47" (2/3) ... [2020-09-25 08:56:48,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b24a42f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:56:48, skipping insertion in model container [2020-09-25 08:56:48,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:56:48" (3/3) ... [2020-09-25 08:56:48,230 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_2.cil-1.c [2020-09-25 08:56:48,241 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:56:48,252 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:56:48,273 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:56:48,304 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:56:48,304 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:56:48,304 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:56:48,304 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:56:48,305 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:56:48,305 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:56:48,305 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:56:48,305 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:56:48,333 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states. [2020-09-25 08:56:48,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 08:56:48,351 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:56:48,353 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] [2020-09-25 08:56:48,353 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:56:48,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:56:48,362 INFO L82 PathProgramCache]: Analyzing trace with hash 1688119681, now seen corresponding path program 1 times [2020-09-25 08:56:48,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:56:48,374 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [133743917] [2020-09-25 08:56:48,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:56:48,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:48,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:48,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:49,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:49,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:49,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-09-25 08:56:49,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:56:49,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1217 [2020-09-25 08:56:49,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:49,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:49,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:56:49,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 08:56:49,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 08:56:49,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 08:56:49,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:56:49,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:49,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:49,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:49,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:56:49,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:49,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:56:49,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:49,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:49,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:56:49,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:49,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:56:49,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:49,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:56:49,998 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [133743917] [2020-09-25 08:56:50,000 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:56:50,000 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 08:56:50,002 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674570709] [2020-09-25 08:56:50,008 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 08:56:50,009 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:56:50,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 08:56:50,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:56:50,031 INFO L87 Difference]: Start difference. First operand 385 states. Second operand 3 states. [2020-09-25 08:56:50,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:56:50,157 INFO L93 Difference]: Finished difference Result 853 states and 1110 transitions. [2020-09-25 08:56:50,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 08:56:50,159 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 161 [2020-09-25 08:56:50,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:56:50,193 INFO L225 Difference]: With dead ends: 853 [2020-09-25 08:56:50,193 INFO L226 Difference]: Without dead ends: 536 [2020-09-25 08:56:50,204 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:56:50,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2020-09-25 08:56:50,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2020-09-25 08:56:50,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 536 states. [2020-09-25 08:56:50,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 642 transitions. [2020-09-25 08:56:50,323 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 642 transitions. Word has length 161 [2020-09-25 08:56:50,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:56:50,327 INFO L479 AbstractCegarLoop]: Abstraction has 536 states and 642 transitions. [2020-09-25 08:56:50,327 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 08:56:50,327 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 642 transitions. [2020-09-25 08:56:50,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-25 08:56:50,338 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:56:50,338 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] [2020-09-25 08:56:50,339 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:56:50,339 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:56:50,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:56:50,339 INFO L82 PathProgramCache]: Analyzing trace with hash -1280710455, now seen corresponding path program 1 times [2020-09-25 08:56:50,339 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:56:50,340 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1623215351] [2020-09-25 08:56:50,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:56:50,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:50,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:50,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:50,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:50,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:51,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:52,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:52,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-09-25 08:56:52,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:56:52,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1744 [2020-09-25 08:56:52,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:52,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:52,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:56:52,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 162 [2020-09-25 08:56:52,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 08:56:52,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:52,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:56:52,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:52,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:52,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:52,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:56:52,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:52,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:56:52,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:52,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:52,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:56:52,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:52,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:56:52,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:52,216 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:56:52,217 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1623215351] [2020-09-25 08:56:52,217 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:56:52,217 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 08:56:52,218 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944889105] [2020-09-25 08:56:52,220 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 08:56:52,220 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:56:52,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 08:56:52,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:56:52,221 INFO L87 Difference]: Start difference. First operand 536 states and 642 transitions. Second operand 3 states. [2020-09-25 08:56:52,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:56:52,289 INFO L93 Difference]: Finished difference Result 929 states and 1142 transitions. [2020-09-25 08:56:52,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 08:56:52,290 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2020-09-25 08:56:52,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:56:52,296 INFO L225 Difference]: With dead ends: 929 [2020-09-25 08:56:52,297 INFO L226 Difference]: Without dead ends: 729 [2020-09-25 08:56:52,299 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:56:52,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2020-09-25 08:56:52,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 729. [2020-09-25 08:56:52,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 729 states. [2020-09-25 08:56:52,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 885 transitions. [2020-09-25 08:56:52,346 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 885 transitions. Word has length 181 [2020-09-25 08:56:52,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:56:52,347 INFO L479 AbstractCegarLoop]: Abstraction has 729 states and 885 transitions. [2020-09-25 08:56:52,347 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 08:56:52,347 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 885 transitions. [2020-09-25 08:56:52,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-09-25 08:56:52,351 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:56:52,351 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] [2020-09-25 08:56:52,351 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:56:52,352 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:56:52,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:56:52,352 INFO L82 PathProgramCache]: Analyzing trace with hash 436822488, now seen corresponding path program 1 times [2020-09-25 08:56:52,352 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:56:52,353 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1510020298] [2020-09-25 08:56:52,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:56:52,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:52,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:52,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:52,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:52,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:53,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:53,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-25 08:56:53,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:56:53,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1150 [2020-09-25 08:56:53,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:53,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:53,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:56:53,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 183 [2020-09-25 08:56:53,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 08:56:53,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:53,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:56:53,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:53,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:53,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:53,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:56:53,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:53,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:56:53,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:53,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:53,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:56:53,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:53,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:56:53,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:56:53,716 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-25 08:56:53,716 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1510020298] [2020-09-25 08:56:53,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:56:53,719 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 08:56:53,719 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81854172] [2020-09-25 08:56:53,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 08:56:53,725 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:56:53,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 08:56:53,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:56:53,726 INFO L87 Difference]: Start difference. First operand 729 states and 885 transitions. Second operand 3 states. [2020-09-25 08:56:53,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:56:53,835 INFO L93 Difference]: Finished difference Result 1315 states and 1628 transitions. [2020-09-25 08:56:53,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 08:56:53,837 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 202 [2020-09-25 08:56:53,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:56:53,847 INFO L225 Difference]: With dead ends: 1315 [2020-09-25 08:56:53,847 INFO L226 Difference]: Without dead ends: 922 [2020-09-25 08:56:53,849 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:56:53,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states. [2020-09-25 08:56:53,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 922. [2020-09-25 08:56:53,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 922 states. [2020-09-25 08:56:53,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1129 transitions. [2020-09-25 08:56:53,894 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1129 transitions. Word has length 202 [2020-09-25 08:56:53,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:56:53,895 INFO L479 AbstractCegarLoop]: Abstraction has 922 states and 1129 transitions. [2020-09-25 08:56:53,895 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 08:56:53,895 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1129 transitions. [2020-09-25 08:56:53,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-09-25 08:56:53,899 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:56:53,899 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] [2020-09-25 08:56:53,900 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:56:53,900 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:56:53,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:56:53,900 INFO L82 PathProgramCache]: Analyzing trace with hash 992070410, now seen corresponding path program 1 times [2020-09-25 08:56:53,901 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:56:53,901 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1919632438] [2020-09-25 08:56:53,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:56:53,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:53,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:54,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:54,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:54,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:55,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:55,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:57,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:57,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-25 08:56:57,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 08:56:57,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3175 [2020-09-25 08:56:57,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:57,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:57,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:56:57,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 208 [2020-09-25 08:56:57,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 08:56:57,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:56:57,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:56:57,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:57,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:57,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:57,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:56:57,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:57,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:56:57,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:57,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:57,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:56:57,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:57,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:56:57,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 08:56:57,244 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-09-25 08:56:57,246 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1919632438] [2020-09-25 08:56:57,247 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:56:57,247 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 08:56:57,247 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065425933] [2020-09-25 08:56:57,248 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 08:56:57,248 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:56:57,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 08:56:57,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:56:57,250 INFO L87 Difference]: Start difference. First operand 922 states and 1129 transitions. Second operand 3 states. [2020-09-25 08:56:57,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:56:57,324 INFO L93 Difference]: Finished difference Result 1701 states and 2116 transitions. [2020-09-25 08:56:57,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 08:56:57,325 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 226 [2020-09-25 08:56:57,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:56:57,331 INFO L225 Difference]: With dead ends: 1701 [2020-09-25 08:56:57,332 INFO L226 Difference]: Without dead ends: 1115 [2020-09-25 08:56:57,333 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:56:57,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2020-09-25 08:56:57,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 1115. [2020-09-25 08:56:57,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1115 states. [2020-09-25 08:56:57,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1115 states to 1115 states and 1374 transitions. [2020-09-25 08:56:57,361 INFO L78 Accepts]: Start accepts. Automaton has 1115 states and 1374 transitions. Word has length 226 [2020-09-25 08:56:57,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:56:57,362 INFO L479 AbstractCegarLoop]: Abstraction has 1115 states and 1374 transitions. [2020-09-25 08:56:57,362 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 08:56:57,362 INFO L276 IsEmpty]: Start isEmpty. Operand 1115 states and 1374 transitions. [2020-09-25 08:56:57,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2020-09-25 08:56:57,367 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:56:57,367 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] [2020-09-25 08:56:57,367 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:56:57,368 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:56:57,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:56:57,368 INFO L82 PathProgramCache]: Analyzing trace with hash -189283057, now seen corresponding path program 1 times [2020-09-25 08:56:57,368 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:56:57,369 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [338939055] [2020-09-25 08:56:57,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:56:57,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:57,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:57,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:57,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:58,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:58,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 260 [2020-09-25 08:56:58,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:56:58,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1123 [2020-09-25 08:56:58,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:58,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:58,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:56:58,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-09-25 08:56:58,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 08:56:58,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:58,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:56:58,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:58,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:58,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:58,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:56:58,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:58,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:56:58,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:58,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:58,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:56:58,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:58,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:56:58,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:56:58,655 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-09-25 08:56:58,655 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [338939055] [2020-09-25 08:56:58,656 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:56:58,656 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 08:56:58,656 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312383496] [2020-09-25 08:56:58,657 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 08:56:58,657 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:56:58,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 08:56:58,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:56:58,658 INFO L87 Difference]: Start difference. First operand 1115 states and 1374 transitions. Second operand 3 states. [2020-09-25 08:56:58,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:56:58,901 INFO L93 Difference]: Finished difference Result 2397 states and 3101 transitions. [2020-09-25 08:56:58,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 08:56:58,902 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 251 [2020-09-25 08:56:58,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:56:58,909 INFO L225 Difference]: With dead ends: 2397 [2020-09-25 08:56:58,909 INFO L226 Difference]: Without dead ends: 1420 [2020-09-25 08:56:58,911 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:56:58,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1420 states. [2020-09-25 08:56:58,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1420 to 1335. [2020-09-25 08:56:58,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1335 states. [2020-09-25 08:56:58,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1335 states to 1335 states and 1639 transitions. [2020-09-25 08:56:58,942 INFO L78 Accepts]: Start accepts. Automaton has 1335 states and 1639 transitions. Word has length 251 [2020-09-25 08:56:58,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:56:58,943 INFO L479 AbstractCegarLoop]: Abstraction has 1335 states and 1639 transitions. [2020-09-25 08:56:58,943 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 08:56:58,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1335 states and 1639 transitions. [2020-09-25 08:56:58,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2020-09-25 08:56:58,948 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:56:58,948 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] [2020-09-25 08:56:58,948 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 08:56:58,949 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:56:58,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:56:58,949 INFO L82 PathProgramCache]: Analyzing trace with hash -552259409, now seen corresponding path program 1 times [2020-09-25 08:56:58,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:56:58,950 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [858767544] [2020-09-25 08:56:58,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:56:58,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:59,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:59,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:59,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:59,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 260 [2020-09-25 08:56:59,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:56:59,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 743 [2020-09-25 08:56:59,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:59,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:59,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:56:59,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 08:56:59,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-09-25 08:56:59,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:59,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:56:59,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:59,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:59,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:59,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:56:59,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:59,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:56:59,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:59,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:59,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:56:59,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:59,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:56:59,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 08:57:00,021 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-09-25 08:57:00,022 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [858767544] [2020-09-25 08:57:00,024 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:57:00,024 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 08:57:00,024 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681074314] [2020-09-25 08:57:00,025 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 08:57:00,025 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:57:00,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 08:57:00,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 08:57:00,026 INFO L87 Difference]: Start difference. First operand 1335 states and 1639 transitions. Second operand 6 states. [2020-09-25 08:57:00,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:57:00,367 INFO L93 Difference]: Finished difference Result 2669 states and 3334 transitions. [2020-09-25 08:57:00,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 08:57:00,368 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 251 [2020-09-25 08:57:00,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:57:00,379 INFO L225 Difference]: With dead ends: 2669 [2020-09-25 08:57:00,379 INFO L226 Difference]: Without dead ends: 1477 [2020-09-25 08:57:00,382 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 08:57:00,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1477 states. [2020-09-25 08:57:00,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1477 to 1425. [2020-09-25 08:57:00,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1425 states. [2020-09-25 08:57:00,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 1779 transitions. [2020-09-25 08:57:00,443 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 1779 transitions. Word has length 251 [2020-09-25 08:57:00,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:57:00,444 INFO L479 AbstractCegarLoop]: Abstraction has 1425 states and 1779 transitions. [2020-09-25 08:57:00,444 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 08:57:00,445 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 1779 transitions. [2020-09-25 08:57:00,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2020-09-25 08:57:00,454 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:57:00,455 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] [2020-09-25 08:57:00,455 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 08:57:00,456 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:57:00,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:57:00,456 INFO L82 PathProgramCache]: Analyzing trace with hash -349484375, now seen corresponding path program 1 times [2020-09-25 08:57:00,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:57:00,457 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [220962555] [2020-09-25 08:57:00,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:57:00,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:00,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:00,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:01,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:01,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-09-25 08:57:01,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:57:01,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 510 [2020-09-25 08:57:01,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:01,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:01,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:57:01,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 08:57:01,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-09-25 08:57:01,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:01,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:57:01,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:01,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:01,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:01,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:57:01,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:01,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:57:01,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:01,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:01,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:01,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:01,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:01,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:01,294 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-09-25 08:57:01,295 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [220962555] [2020-09-25 08:57:01,295 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:57:01,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 08:57:01,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682367595] [2020-09-25 08:57:01,297 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 08:57:01,298 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:57:01,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 08:57:01,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 08:57:01,299 INFO L87 Difference]: Start difference. First operand 1425 states and 1779 transitions. Second operand 6 states. [2020-09-25 08:57:01,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:57:01,503 INFO L93 Difference]: Finished difference Result 2710 states and 3415 transitions. [2020-09-25 08:57:01,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 08:57:01,503 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 252 [2020-09-25 08:57:01,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:57:01,510 INFO L225 Difference]: With dead ends: 2710 [2020-09-25 08:57:01,510 INFO L226 Difference]: Without dead ends: 1428 [2020-09-25 08:57:01,516 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 08:57:01,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2020-09-25 08:57:01,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1428. [2020-09-25 08:57:01,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1428 states. [2020-09-25 08:57:01,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1782 transitions. [2020-09-25 08:57:01,574 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1782 transitions. Word has length 252 [2020-09-25 08:57:01,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:57:01,575 INFO L479 AbstractCegarLoop]: Abstraction has 1428 states and 1782 transitions. [2020-09-25 08:57:01,575 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 08:57:01,575 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1782 transitions. [2020-09-25 08:57:01,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2020-09-25 08:57:01,581 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:57:01,582 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] [2020-09-25 08:57:01,582 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 08:57:01,582 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:57:01,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:57:01,583 INFO L82 PathProgramCache]: Analyzing trace with hash 127538036, now seen corresponding path program 1 times [2020-09-25 08:57:01,583 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:57:01,583 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [144819605] [2020-09-25 08:57:01,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:57:01,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 08:57:01,628 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 08:57:01,628 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 08:57:01,635 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 08:57:01,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 08:57:01 BoogieIcfgContainer [2020-09-25 08:57:01,683 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 08:57:01,688 INFO L168 Benchmark]: Toolchain (without parser) took 15045.98 ms. Allocated memory was 138.4 MB in the beginning and 449.8 MB in the end (delta: 311.4 MB). Free memory was 101.0 MB in the beginning and 315.6 MB in the end (delta: -214.6 MB). Peak memory consumption was 96.8 MB. Max. memory is 7.1 GB. [2020-09-25 08:57:01,691 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 08:57:01,692 INFO L168 Benchmark]: CACSL2BoogieTranslator took 533.98 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 100.4 MB in the beginning and 176.9 MB in the end (delta: -76.6 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. [2020-09-25 08:57:01,693 INFO L168 Benchmark]: Boogie Preprocessor took 62.39 ms. Allocated memory is still 201.3 MB. Free memory was 176.9 MB in the beginning and 174.2 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-09-25 08:57:01,697 INFO L168 Benchmark]: RCFGBuilder took 977.97 ms. Allocated memory is still 201.3 MB. Free memory was 174.2 MB in the beginning and 109.9 MB in the end (delta: 64.2 MB). Peak memory consumption was 64.2 MB. Max. memory is 7.1 GB. [2020-09-25 08:57:01,698 INFO L168 Benchmark]: TraceAbstraction took 13461.90 ms. Allocated memory was 201.3 MB in the beginning and 449.8 MB in the end (delta: 248.5 MB). Free memory was 109.2 MB in the beginning and 315.6 MB in the end (delta: -206.4 MB). Peak memory consumption was 42.1 MB. Max. memory is 7.1 GB. [2020-09-25 08:57:01,701 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 533.98 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 100.4 MB in the beginning and 176.9 MB in the end (delta: -76.6 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 62.39 ms. Allocated memory is still 201.3 MB. Free memory was 176.9 MB in the beginning and 174.2 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 977.97 ms. Allocated memory is still 201.3 MB. Free memory was 174.2 MB in the beginning and 109.9 MB in the end (delta: 64.2 MB). Peak memory consumption was 64.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13461.90 ms. Allocated memory was 201.3 MB in the beginning and 449.8 MB in the end (delta: 248.5 MB). Free memory was 109.2 MB in the beginning and 315.6 MB in the end (delta: -206.4 MB). Peak memory consumption was 42.1 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 = 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] 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 [L257] COND FALSE !(ret <= 0) [L260] s__state = 4384 [L261] s__init_num = 0 [L262] 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 [L268] ret = __VERIFIER_nondet_int() [L269] COND TRUE blastFlag == 1 [L270] blastFlag = 2 [L272] COND FALSE !(ret <= 0) [L275] COND FALSE !(\read(s__hit)) [L278] s__state = 4400 [L280] 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 [L285] __cil_tmp56 = (unsigned long )s__s3__tmp__new_cipher__algorithms [L286] COND FALSE !(__cil_tmp56 - 256UL) [L289] ret = __VERIFIER_nondet_int() [L290] COND TRUE blastFlag == 2 [L291] 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, 385 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 13.3s, OverallIterations: 8, TraceHistogramMax: 6, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2801 SDtfs, 2696 SDslu, 3020 SDs, 0 SdLazy, 469 SolverSat, 84 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1428occurred 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, 7 MinimizatonAttempts, 137 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 10.3s InterpolantComputationTime, 1798 NumberOfCodeBlocks, 1798 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1517 ConstructedInterpolants, 0 QuantifiedInterpolants, 564435 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 438/438 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...