/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_2.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:25:44,052 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:25:44,057 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:25:44,100 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:25:44,100 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:25:44,107 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:25:44,109 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:25:44,113 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:25:44,115 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:25:44,118 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:25:44,119 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:25:44,120 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:25:44,120 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:25:44,123 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:25:44,125 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:25:44,127 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:25:44,128 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:25:44,130 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:25:44,132 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:25:44,140 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:25:44,142 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:25:44,143 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:25:44,144 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:25:44,145 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:25:44,156 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:25:44,157 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:25:44,157 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:25:44,158 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:25:44,165 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:25:44,166 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:25:44,166 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:25:44,167 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:25:44,168 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:25:44,169 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:25:44,173 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:25:44,173 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:25:44,174 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:25:44,174 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:25:44,174 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:25:44,175 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:25:44,176 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:25:44,177 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 13:25:44,216 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:25:44,216 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:25:44,219 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:25:44,219 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:25:44,219 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:25:44,219 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:25:44,220 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:25:44,220 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:25:44,220 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:25:44,220 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:25:44,222 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:25:44,222 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:25:44,222 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:25:44,222 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:25:44,223 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:25:44,223 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:25:44,223 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:25:44,223 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:25:44,223 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:25:44,224 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:25:44,224 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:25:44,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:25:44,225 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:25:44,225 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:25:44,225 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:25:44,225 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:25:44,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:25:44,225 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:25:44,226 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:25:44,226 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=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; [2020-09-25 13:25:44,660 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:25:44,685 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:25:44,691 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:25:44,694 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:25:44,694 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:25:44,695 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_2.cil-1.c [2020-09-25 13:25:44,768 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f6b7129ca/14cd9109843244c8871b573c158fd4c6/FLAG9c961e8a0 [2020-09-25 13:25:45,292 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:25:45,293 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_clnt_2.cil-1.c [2020-09-25 13:25:45,306 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f6b7129ca/14cd9109843244c8871b573c158fd4c6/FLAG9c961e8a0 [2020-09-25 13:25:45,588 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f6b7129ca/14cd9109843244c8871b573c158fd4c6 [2020-09-25 13:25:45,600 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:25:45,606 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:25:45,607 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:25:45,608 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:25:45,612 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:25:45,613 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:25:45" (1/1) ... [2020-09-25 13:25:45,617 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@191a9bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:25:45, skipping insertion in model container [2020-09-25 13:25:45,617 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:25:45" (1/1) ... [2020-09-25 13:25:45,626 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:25:45,671 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:25:45,943 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:25:45,949 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:25:46,133 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:25:46,152 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:25:46,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:25:46 WrapperNode [2020-09-25 13:25:46,153 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:25:46,154 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:25:46,154 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:25:46,154 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:25:46,168 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:25:46" (1/1) ... [2020-09-25 13:25:46,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:25:46" (1/1) ... [2020-09-25 13:25:46,178 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:25:46" (1/1) ... [2020-09-25 13:25:46,178 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:25:46" (1/1) ... [2020-09-25 13:25:46,190 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:25:46" (1/1) ... [2020-09-25 13:25:46,204 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:25:46" (1/1) ... [2020-09-25 13:25:46,207 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:25:46" (1/1) ... [2020-09-25 13:25:46,211 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:25:46,212 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:25:46,212 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:25:46,212 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:25:46,213 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:25:46" (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 13:25:46,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:25:46,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:25:46,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-09-25 13:25:46,294 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:25:46,295 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:25:46,295 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 13:25:46,295 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:25:46,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-25 13:25:46,296 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-09-25 13:25:46,296 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:25:46,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:25:46,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:25:46,514 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 13:25:47,168 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-09-25 13:25:47,169 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-09-25 13:25:47,216 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:25:47,217 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 13:25:47,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:25:47 BoogieIcfgContainer [2020-09-25 13:25:47,229 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:25:47,232 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:25:47,232 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:25:47,236 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:25:47,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:25:45" (1/3) ... [2020-09-25 13:25:47,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39022c9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:25:47, skipping insertion in model container [2020-09-25 13:25:47,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:25:46" (2/3) ... [2020-09-25 13:25:47,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39022c9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:25:47, skipping insertion in model container [2020-09-25 13:25:47,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:25:47" (3/3) ... [2020-09-25 13:25:47,242 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_2.cil-1.c [2020-09-25 13:25:47,253 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:25:47,270 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:25:47,292 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:25:47,337 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:25:47,337 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:25:47,337 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:25:47,337 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:25:47,338 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:25:47,338 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:25:47,338 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:25:47,338 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:25:47,369 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states. [2020-09-25 13:25:47,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 13:25:47,388 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:25:47,389 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 13:25:47,390 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:25:47,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:25:47,398 INFO L82 PathProgramCache]: Analyzing trace with hash 1688119681, now seen corresponding path program 1 times [2020-09-25 13:25:47,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:25:47,410 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [925534322] [2020-09-25 13:25:47,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:25:47,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:47,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:47,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:48,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:48,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:48,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-09-25 13:25:48,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:25:48,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1084 [2020-09-25 13:25:48,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:48,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:48,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:25:48,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 13:25:48,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-09-25 13:25:48,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 13:25:48,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:25:48,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:48,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:48,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:48,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:25:48,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:48,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:25:48,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:48,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:48,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:25:48,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:48,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:25:48,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:25:48,962 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 13:25:48,963 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [925534322] [2020-09-25 13:25:48,965 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:25:48,965 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 13:25:48,966 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686027476] [2020-09-25 13:25:48,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 13:25:48,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:25:48,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 13:25:48,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 13:25:48,993 INFO L87 Difference]: Start difference. First operand 385 states. Second operand 6 states. [2020-09-25 13:25:49,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:25:49,275 INFO L93 Difference]: Finished difference Result 629 states and 804 transitions. [2020-09-25 13:25:49,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 13:25:49,277 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 161 [2020-09-25 13:25:49,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:25:49,298 INFO L225 Difference]: With dead ends: 629 [2020-09-25 13:25:49,298 INFO L226 Difference]: Without dead ends: 346 [2020-09-25 13:25:49,304 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 13:25:49,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-09-25 13:25:49,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2020-09-25 13:25:49,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-09-25 13:25:49,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 403 transitions. [2020-09-25 13:25:49,379 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 403 transitions. Word has length 161 [2020-09-25 13:25:49,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:25:49,381 INFO L479 AbstractCegarLoop]: Abstraction has 346 states and 403 transitions. [2020-09-25 13:25:49,381 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 13:25:49,381 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 403 transitions. [2020-09-25 13:25:49,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-09-25 13:25:49,385 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:25:49,385 INFO L422 BasicCegarLoop]: trace histogram [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 13:25:49,386 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:25:49,386 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:25:49,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:25:49,386 INFO L82 PathProgramCache]: Analyzing trace with hash -975331194, now seen corresponding path program 1 times [2020-09-25 13:25:49,387 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:25:49,387 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [595864615] [2020-09-25 13:25:49,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:25:49,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:49,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:49,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:49,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:49,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:49,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-25 13:25:49,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:25:49,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 329 [2020-09-25 13:25:49,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:49,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:49,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:25:49,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 13:25:49,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 13:25:49,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:25:49,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:25:49,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:49,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:49,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:49,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:25:49,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:49,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:25:49,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:49,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:49,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:25:49,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:49,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:25:49,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:25:49,891 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 13:25:49,892 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [595864615] [2020-09-25 13:25:49,892 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:25:49,892 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:25:49,893 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206151079] [2020-09-25 13:25:49,895 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:25:49,895 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:25:49,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:25:49,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:25:49,896 INFO L87 Difference]: Start difference. First operand 346 states and 403 transitions. Second operand 3 states. [2020-09-25 13:25:49,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:25:49,977 INFO L93 Difference]: Finished difference Result 739 states and 903 transitions. [2020-09-25 13:25:49,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:25:49,977 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 184 [2020-09-25 13:25:49,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:25:49,982 INFO L225 Difference]: With dead ends: 739 [2020-09-25 13:25:49,982 INFO L226 Difference]: Without dead ends: 539 [2020-09-25 13:25:49,984 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 13:25:49,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-09-25 13:25:50,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2020-09-25 13:25:50,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2020-09-25 13:25:50,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 645 transitions. [2020-09-25 13:25:50,017 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 645 transitions. Word has length 184 [2020-09-25 13:25:50,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:25:50,019 INFO L479 AbstractCegarLoop]: Abstraction has 539 states and 645 transitions. [2020-09-25 13:25:50,019 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:25:50,019 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 645 transitions. [2020-09-25 13:25:50,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-25 13:25:50,029 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:25:50,030 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:25:50,030 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:25:50,030 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:25:50,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:25:50,032 INFO L82 PathProgramCache]: Analyzing trace with hash -574346418, now seen corresponding path program 1 times [2020-09-25 13:25:50,032 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:25:50,032 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [584986314] [2020-09-25 13:25:50,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:25:50,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:50,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:50,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:50,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:50,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:50,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-25 13:25:50,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:25:50,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 363 [2020-09-25 13:25:50,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:50,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:50,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:25:50,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 187 [2020-09-25 13:25:50,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 13:25:50,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:25:50,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:25:50,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:50,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:50,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:50,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:25:50,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:50,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:25:50,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:50,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:50,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:25:50,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:50,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:25:50,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:25:50,535 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 13:25:50,536 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [584986314] [2020-09-25 13:25:50,536 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:25:50,536 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:25:50,537 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100895465] [2020-09-25 13:25:50,538 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:25:50,538 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:25:50,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:25:50,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:25:50,539 INFO L87 Difference]: Start difference. First operand 539 states and 645 transitions. Second operand 3 states. [2020-09-25 13:25:50,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:25:50,892 INFO L93 Difference]: Finished difference Result 1073 states and 1360 transitions. [2020-09-25 13:25:50,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:25:50,893 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 204 [2020-09-25 13:25:50,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:25:50,901 INFO L225 Difference]: With dead ends: 1073 [2020-09-25 13:25:50,901 INFO L226 Difference]: Without dead ends: 680 [2020-09-25 13:25:50,903 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 13:25:50,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2020-09-25 13:25:50,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 627. [2020-09-25 13:25:50,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 627 states. [2020-09-25 13:25:50,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 753 transitions. [2020-09-25 13:25:50,958 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 753 transitions. Word has length 204 [2020-09-25 13:25:50,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:25:50,959 INFO L479 AbstractCegarLoop]: Abstraction has 627 states and 753 transitions. [2020-09-25 13:25:50,959 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:25:50,960 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 753 transitions. [2020-09-25 13:25:50,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-09-25 13:25:50,966 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:25:50,966 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:25:50,968 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:25:50,968 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:25:50,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:25:50,969 INFO L82 PathProgramCache]: Analyzing trace with hash -375106847, now seen corresponding path program 1 times [2020-09-25 13:25:50,969 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:25:50,970 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1745059273] [2020-09-25 13:25:50,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:25:51,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:51,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:51,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:51,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:51,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:52,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:52,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-09-25 13:25:52,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:25:52,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1047 [2020-09-25 13:25:52,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:52,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:52,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:25:52,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 185 [2020-09-25 13:25:52,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 13:25:52,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:25:52,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:25:52,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:52,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:52,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:52,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:25:52,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:52,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:25:52,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:52,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:52,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:25:52,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:52,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:25:52,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:25:52,123 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 13:25:52,124 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1745059273] [2020-09-25 13:25:52,124 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:25:52,124 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:25:52,125 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254478962] [2020-09-25 13:25:52,125 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:25:52,126 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:25:52,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:25:52,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:25:52,126 INFO L87 Difference]: Start difference. First operand 627 states and 753 transitions. Second operand 3 states. [2020-09-25 13:25:52,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:25:52,186 INFO L93 Difference]: Finished difference Result 1108 states and 1361 transitions. [2020-09-25 13:25:52,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:25:52,187 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 211 [2020-09-25 13:25:52,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:25:52,192 INFO L225 Difference]: With dead ends: 1108 [2020-09-25 13:25:52,192 INFO L226 Difference]: Without dead ends: 864 [2020-09-25 13:25:52,193 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 13:25:52,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2020-09-25 13:25:52,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 864. [2020-09-25 13:25:52,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 864 states. [2020-09-25 13:25:52,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1050 transitions. [2020-09-25 13:25:52,216 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1050 transitions. Word has length 211 [2020-09-25 13:25:52,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:25:52,216 INFO L479 AbstractCegarLoop]: Abstraction has 864 states and 1050 transitions. [2020-09-25 13:25:52,216 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:25:52,217 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1050 transitions. [2020-09-25 13:25:52,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-09-25 13:25:52,220 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:25:52,221 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:25:52,221 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 13:25:52,221 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:25:52,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:25:52,221 INFO L82 PathProgramCache]: Analyzing trace with hash -2117708685, now seen corresponding path program 1 times [2020-09-25 13:25:52,222 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:25:52,222 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [498290439] [2020-09-25 13:25:52,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:25:52,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:52,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:52,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:52,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:52,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 234 [2020-09-25 13:25:52,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:25:52,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 343 [2020-09-25 13:25:52,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:52,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:52,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:25:52,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 209 [2020-09-25 13:25:52,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 13:25:52,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:25:52,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:25:52,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:52,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:52,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:52,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:25:52,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:52,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:25:52,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:52,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:52,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:25:52,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:52,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:25:52,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:25:52,720 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-25 13:25:52,721 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [498290439] [2020-09-25 13:25:52,721 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:25:52,721 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:25:52,722 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924136568] [2020-09-25 13:25:52,722 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:25:52,722 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:25:52,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:25:52,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:25:52,723 INFO L87 Difference]: Start difference. First operand 864 states and 1050 transitions. Second operand 3 states. [2020-09-25 13:25:53,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:25:53,034 INFO L93 Difference]: Finished difference Result 1768 states and 2250 transitions. [2020-09-25 13:25:53,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:25:53,036 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 225 [2020-09-25 13:25:53,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:25:53,042 INFO L225 Difference]: With dead ends: 1768 [2020-09-25 13:25:53,043 INFO L226 Difference]: Without dead ends: 1047 [2020-09-25 13:25:53,044 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 13:25:53,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2020-09-25 13:25:53,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 996. [2020-09-25 13:25:53,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 996 states. [2020-09-25 13:25:53,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 996 states to 996 states and 1209 transitions. [2020-09-25 13:25:53,072 INFO L78 Accepts]: Start accepts. Automaton has 996 states and 1209 transitions. Word has length 225 [2020-09-25 13:25:53,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:25:53,073 INFO L479 AbstractCegarLoop]: Abstraction has 996 states and 1209 transitions. [2020-09-25 13:25:53,073 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:25:53,073 INFO L276 IsEmpty]: Start isEmpty. Operand 996 states and 1209 transitions. [2020-09-25 13:25:53,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-09-25 13:25:53,077 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:25:53,077 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:25:53,078 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 13:25:53,078 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:25:53,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:25:53,079 INFO L82 PathProgramCache]: Analyzing trace with hash 333657299, now seen corresponding path program 1 times [2020-09-25 13:25:53,079 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:25:53,079 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [411623149] [2020-09-25 13:25:53,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:25:53,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:53,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:53,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:53,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:53,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:53,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 234 [2020-09-25 13:25:53,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:25:53,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 405 [2020-09-25 13:25:53,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:53,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:53,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:25:53,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 206 [2020-09-25 13:25:53,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 13:25:53,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:25:53,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:25:53,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:53,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:53,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:53,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:25:53,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:53,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:25:53,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:53,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:53,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:25:53,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:53,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:25:53,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:25:53,595 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-25 13:25:53,595 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [411623149] [2020-09-25 13:25:53,596 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:25:53,598 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:25:53,599 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27524557] [2020-09-25 13:25:53,599 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:25:53,600 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:25:53,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:25:53,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:25:53,600 INFO L87 Difference]: Start difference. First operand 996 states and 1209 transitions. Second operand 3 states. [2020-09-25 13:25:53,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:25:53,670 INFO L93 Difference]: Finished difference Result 1846 states and 2273 transitions. [2020-09-25 13:25:53,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:25:53,671 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 225 [2020-09-25 13:25:53,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:25:53,678 INFO L225 Difference]: With dead ends: 1846 [2020-09-25 13:25:53,679 INFO L226 Difference]: Without dead ends: 1277 [2020-09-25 13:25:53,681 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 13:25:53,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1277 states. [2020-09-25 13:25:53,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1277 to 1277. [2020-09-25 13:25:53,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1277 states. [2020-09-25 13:25:53,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1277 states to 1277 states and 1560 transitions. [2020-09-25 13:25:53,721 INFO L78 Accepts]: Start accepts. Automaton has 1277 states and 1560 transitions. Word has length 225 [2020-09-25 13:25:53,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:25:53,722 INFO L479 AbstractCegarLoop]: Abstraction has 1277 states and 1560 transitions. [2020-09-25 13:25:53,722 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:25:53,722 INFO L276 IsEmpty]: Start isEmpty. Operand 1277 states and 1560 transitions. [2020-09-25 13:25:53,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-09-25 13:25:53,727 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:25:53,727 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:25:53,728 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 13:25:53,728 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:25:53,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:25:53,728 INFO L82 PathProgramCache]: Analyzing trace with hash -1266606843, now seen corresponding path program 1 times [2020-09-25 13:25:53,729 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:25:53,729 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [887004971] [2020-09-25 13:25:53,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:25:53,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:53,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:54,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:54,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:54,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:54,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-09-25 13:25:54,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:25:54,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 580 [2020-09-25 13:25:54,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:54,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:54,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:25:54,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-09-25 13:25:54,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 13:25:54,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:25:54,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:25:54,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:54,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:54,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:54,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:25:54,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:54,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:25:54,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:54,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:54,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:25:54,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:54,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:25:54,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:25:54,544 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-09-25 13:25:54,544 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [887004971] [2020-09-25 13:25:54,545 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:25:54,545 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:25:54,545 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661290922] [2020-09-25 13:25:54,546 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:25:54,546 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:25:54,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:25:54,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:25:54,547 INFO L87 Difference]: Start difference. First operand 1277 states and 1560 transitions. Second operand 3 states. [2020-09-25 13:25:54,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:25:54,630 INFO L93 Difference]: Finished difference Result 2408 states and 2975 transitions. [2020-09-25 13:25:54,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:25:54,631 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 249 [2020-09-25 13:25:54,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:25:54,641 INFO L225 Difference]: With dead ends: 2408 [2020-09-25 13:25:54,642 INFO L226 Difference]: Without dead ends: 1558 [2020-09-25 13:25:54,644 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 13:25:54,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1558 states. [2020-09-25 13:25:54,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1558 to 1558. [2020-09-25 13:25:54,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1558 states. [2020-09-25 13:25:54,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 1912 transitions. [2020-09-25 13:25:54,688 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 1912 transitions. Word has length 249 [2020-09-25 13:25:54,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:25:54,689 INFO L479 AbstractCegarLoop]: Abstraction has 1558 states and 1912 transitions. [2020-09-25 13:25:54,689 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:25:54,689 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 1912 transitions. [2020-09-25 13:25:54,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2020-09-25 13:25:54,695 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:25:54,695 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 13:25:54,696 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 13:25:54,696 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:25:54,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:25:54,697 INFO L82 PathProgramCache]: Analyzing trace with hash 127538036, now seen corresponding path program 1 times [2020-09-25 13:25:54,697 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:25:54,698 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1520198705] [2020-09-25 13:25:54,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:25:54,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 13:25:54,765 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 13:25:54,765 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 13:25:54,770 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 13:25:54,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:25:54 BoogieIcfgContainer [2020-09-25 13:25:54,809 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 13:25:54,813 INFO L168 Benchmark]: Toolchain (without parser) took 9209.56 ms. Allocated memory was 140.0 MB in the beginning and 375.9 MB in the end (delta: 235.9 MB). Free memory was 101.6 MB in the beginning and 227.5 MB in the end (delta: -125.9 MB). Peak memory consumption was 110.1 MB. Max. memory is 7.1 GB. [2020-09-25 13:25:54,814 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 140.0 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 13:25:54,815 INFO L168 Benchmark]: CACSL2BoogieTranslator took 546.42 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 101.0 MB in the beginning and 180.6 MB in the end (delta: -79.6 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. [2020-09-25 13:25:54,816 INFO L168 Benchmark]: Boogie Preprocessor took 57.65 ms. Allocated memory is still 204.5 MB. Free memory was 180.6 MB in the beginning and 177.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-09-25 13:25:54,817 INFO L168 Benchmark]: RCFGBuilder took 1017.28 ms. Allocated memory is still 204.5 MB. Free memory was 177.9 MB in the beginning and 113.6 MB in the end (delta: 64.4 MB). Peak memory consumption was 64.4 MB. Max. memory is 7.1 GB. [2020-09-25 13:25:54,818 INFO L168 Benchmark]: TraceAbstraction took 7577.11 ms. Allocated memory was 204.5 MB in the beginning and 375.9 MB in the end (delta: 171.4 MB). Free memory was 112.9 MB in the beginning and 227.5 MB in the end (delta: -114.6 MB). Peak memory consumption was 56.9 MB. Max. memory is 7.1 GB. [2020-09-25 13:25:54,821 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 140.0 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 546.42 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 101.0 MB in the beginning and 180.6 MB in the end (delta: -79.6 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 57.65 ms. Allocated memory is still 204.5 MB. Free memory was 180.6 MB in the beginning and 177.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1017.28 ms. Allocated memory is still 204.5 MB. Free memory was 177.9 MB in the beginning and 113.6 MB in the end (delta: 64.4 MB). Peak memory consumption was 64.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 7577.11 ms. Allocated memory was 204.5 MB in the beginning and 375.9 MB in the end (delta: 171.4 MB). Free memory was 112.9 MB in the beginning and 227.5 MB in the end (delta: -114.6 MB). Peak memory consumption was 56.9 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: 7.4s, OverallIterations: 8, TraceHistogramMax: 6, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2828 SDtfs, 1892 SDslu, 2845 SDs, 0 SdLazy, 443 SolverSat, 96 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1558occurred 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: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 104 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.7s InterpolantComputationTime, 1733 NumberOfCodeBlocks, 1733 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1452 ConstructedInterpolants, 0 QuantifiedInterpolants, 429290 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 197/197 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...