/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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 05:30:05,996 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:30:06,000 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:30:06,043 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:30:06,044 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:30:06,053 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:30:06,054 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:30:06,058 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:30:06,062 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:30:06,065 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:30:06,066 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:30:06,067 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:30:06,067 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:30:06,070 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:30:06,073 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:30:06,075 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:30:06,076 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:30:06,077 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:30:06,080 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:30:06,089 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:30:06,091 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:30:06,093 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:30:06,094 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:30:06,095 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:30:06,107 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:30:06,107 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:30:06,113 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:30:06,114 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:30:06,115 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:30:06,119 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:30:06,119 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:30:06,120 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:30:06,124 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:30:06,125 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:30:06,127 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:30:06,127 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:30:06,128 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:30:06,128 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:30:06,128 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:30:06,129 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:30:06,130 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:30:06,131 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 05:30:06,176 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:30:06,176 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:30:06,178 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:30:06,179 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:30:06,179 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:30:06,179 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:30:06,179 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:30:06,180 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:30:06,180 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:30:06,180 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:30:06,181 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:30:06,181 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:30:06,182 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:30:06,182 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:30:06,182 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:30:06,183 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:30:06,183 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:30:06,183 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:30:06,183 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:30:06,183 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:30:06,184 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:30:06,184 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:30:06,184 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:30:06,184 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:30:06,184 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:30:06,185 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:30:06,185 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:30:06,185 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:30:06,185 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:30:06,185 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;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=WIDESTAMONGSMALL;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=WIDESTAMONGSMALL;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=WIDESTAMONGSMALL;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; [2020-09-25 05:30:06,631 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:30:06,648 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:30:06,653 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:30:06,654 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:30:06,655 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:30:06,656 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_2.cil-1.c [2020-09-25 05:30:06,733 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6c2fe9f15/c09a66d7205640d8a045abce9b5b83b0/FLAG2ca5bd620 [2020-09-25 05:30:07,331 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:30:07,332 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_clnt_2.cil-1.c [2020-09-25 05:30:07,345 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6c2fe9f15/c09a66d7205640d8a045abce9b5b83b0/FLAG2ca5bd620 [2020-09-25 05:30:07,568 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6c2fe9f15/c09a66d7205640d8a045abce9b5b83b0 [2020-09-25 05:30:07,580 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:30:07,586 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:30:07,588 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:30:07,588 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:30:07,594 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:30:07,595 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:30:07" (1/1) ... [2020-09-25 05:30:07,600 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ca632cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:07, skipping insertion in model container [2020-09-25 05:30:07,600 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:30:07" (1/1) ... [2020-09-25 05:30:07,609 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:30:07,681 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:30:08,004 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:30:08,013 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:30:08,219 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:30:08,237 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:30:08,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:08 WrapperNode [2020-09-25 05:30:08,240 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:30:08,241 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:30:08,242 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:30:08,242 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:30:08,257 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:08" (1/1) ... [2020-09-25 05:30:08,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:08" (1/1) ... [2020-09-25 05:30:08,268 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:08" (1/1) ... [2020-09-25 05:30:08,269 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:08" (1/1) ... [2020-09-25 05:30:08,283 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:08" (1/1) ... [2020-09-25 05:30:08,297 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:08" (1/1) ... [2020-09-25 05:30:08,300 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:08" (1/1) ... [2020-09-25 05:30:08,305 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:30:08,306 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:30:08,306 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:30:08,306 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:30:08,307 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:08" (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 05:30:08,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:30:08,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:30:08,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-09-25 05:30:08,393 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:30:08,393 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:30:08,394 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 05:30:08,394 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:30:08,394 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-25 05:30:08,394 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-09-25 05:30:08,394 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:30:08,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:30:08,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:30:08,578 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 05:30:09,356 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-09-25 05:30:09,357 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-09-25 05:30:09,397 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:30:09,399 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 05:30:09,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:30:09 BoogieIcfgContainer [2020-09-25 05:30:09,409 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:30:09,410 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:30:09,410 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:30:09,414 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:30:09,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:30:07" (1/3) ... [2020-09-25 05:30:09,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56054430 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:30:09, skipping insertion in model container [2020-09-25 05:30:09,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:08" (2/3) ... [2020-09-25 05:30:09,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56054430 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:30:09, skipping insertion in model container [2020-09-25 05:30:09,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:30:09" (3/3) ... [2020-09-25 05:30:09,419 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_2.cil-1.c [2020-09-25 05:30:09,430 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:30:09,442 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:30:09,464 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:30:09,496 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:30:09,497 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:30:09,497 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:30:09,497 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:30:09,497 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:30:09,497 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:30:09,497 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:30:09,497 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:30:09,526 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states. [2020-09-25 05:30:09,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 05:30:09,544 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:09,545 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 05:30:09,546 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:09,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:09,552 INFO L82 PathProgramCache]: Analyzing trace with hash 1688119681, now seen corresponding path program 1 times [2020-09-25 05:30:09,564 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:09,564 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1679733893] [2020-09-25 05:30:09,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:09,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:09,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:10,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:10,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:10,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:10,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-09-25 05:30:10,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:30:10,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1120 [2020-09-25 05:30:10,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:10,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:10,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:10,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 05:30:10,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 05:30:10,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 05:30:11,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:11,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:11,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:11,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:11,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:30:11,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:11,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:30:11,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:11,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:11,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:11,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:11,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:11,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:11,126 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 05:30:11,127 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1679733893] [2020-09-25 05:30:11,129 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:30:11,129 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 05:30:11,130 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670009420] [2020-09-25 05:30:11,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 05:30:11,137 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:11,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 05:30:11,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:30:11,159 INFO L87 Difference]: Start difference. First operand 385 states. Second operand 3 states. [2020-09-25 05:30:11,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:11,290 INFO L93 Difference]: Finished difference Result 853 states and 1110 transitions. [2020-09-25 05:30:11,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 05:30:11,292 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 161 [2020-09-25 05:30:11,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:11,315 INFO L225 Difference]: With dead ends: 853 [2020-09-25 05:30:11,316 INFO L226 Difference]: Without dead ends: 536 [2020-09-25 05:30:11,322 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 05:30:11,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2020-09-25 05:30:11,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2020-09-25 05:30:11,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 536 states. [2020-09-25 05:30:11,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 642 transitions. [2020-09-25 05:30:11,409 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 642 transitions. Word has length 161 [2020-09-25 05:30:11,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:11,410 INFO L479 AbstractCegarLoop]: Abstraction has 536 states and 642 transitions. [2020-09-25 05:30:11,411 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 05:30:11,411 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 642 transitions. [2020-09-25 05:30:11,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-25 05:30:11,417 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:11,417 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 05:30:11,417 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:30:11,418 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:11,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:11,418 INFO L82 PathProgramCache]: Analyzing trace with hash -1280710455, now seen corresponding path program 1 times [2020-09-25 05:30:11,418 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:11,419 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [707385188] [2020-09-25 05:30:11,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:11,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:11,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:11,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:11,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:11,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:12,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:12,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:12,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-09-25 05:30:12,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:30:12,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1402 [2020-09-25 05:30:12,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:12,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:12,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:12,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 162 [2020-09-25 05:30:12,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 05:30:12,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 05:30:12,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:12,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:12,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:12,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:12,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:30:12,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:12,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:30:12,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:12,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:12,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:12,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:12,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:12,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:30:12,988 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 05:30:12,997 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [707385188] [2020-09-25 05:30:12,997 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:30:12,998 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 05:30:12,998 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326451651] [2020-09-25 05:30:13,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 05:30:13,002 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:13,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 05:30:13,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:30:13,003 INFO L87 Difference]: Start difference. First operand 536 states and 642 transitions. Second operand 3 states. [2020-09-25 05:30:13,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:13,088 INFO L93 Difference]: Finished difference Result 929 states and 1142 transitions. [2020-09-25 05:30:13,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 05:30:13,089 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2020-09-25 05:30:13,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:13,094 INFO L225 Difference]: With dead ends: 929 [2020-09-25 05:30:13,094 INFO L226 Difference]: Without dead ends: 729 [2020-09-25 05:30:13,097 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 05:30:13,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2020-09-25 05:30:13,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 729. [2020-09-25 05:30:13,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 729 states. [2020-09-25 05:30:13,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 885 transitions. [2020-09-25 05:30:13,139 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 885 transitions. Word has length 181 [2020-09-25 05:30:13,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:13,140 INFO L479 AbstractCegarLoop]: Abstraction has 729 states and 885 transitions. [2020-09-25 05:30:13,140 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 05:30:13,140 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 885 transitions. [2020-09-25 05:30:13,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-09-25 05:30:13,145 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:13,146 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 05:30:13,146 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:30:13,146 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:13,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:13,147 INFO L82 PathProgramCache]: Analyzing trace with hash 436822488, now seen corresponding path program 1 times [2020-09-25 05:30:13,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:13,147 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [353525464] [2020-09-25 05:30:13,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:13,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:13,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:13,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:13,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:13,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:14,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:14,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-25 05:30:14,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:30:14,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1177 [2020-09-25 05:30:14,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:14,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:14,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:14,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 183 [2020-09-25 05:30:14,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 05:30:14,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:14,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:14,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:14,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:14,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:14,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:30:14,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:14,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:30:14,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:14,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:14,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:14,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:14,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:14,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:14,438 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 05:30:14,438 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [353525464] [2020-09-25 05:30:14,439 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:30:14,439 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 05:30:14,440 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62255083] [2020-09-25 05:30:14,441 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 05:30:14,441 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:14,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 05:30:14,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:30:14,442 INFO L87 Difference]: Start difference. First operand 729 states and 885 transitions. Second operand 3 states. [2020-09-25 05:30:14,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:14,519 INFO L93 Difference]: Finished difference Result 1315 states and 1628 transitions. [2020-09-25 05:30:14,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 05:30:14,519 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 202 [2020-09-25 05:30:14,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:14,525 INFO L225 Difference]: With dead ends: 1315 [2020-09-25 05:30:14,525 INFO L226 Difference]: Without dead ends: 922 [2020-09-25 05:30:14,527 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 05:30:14,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states. [2020-09-25 05:30:14,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 922. [2020-09-25 05:30:14,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 922 states. [2020-09-25 05:30:14,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1129 transitions. [2020-09-25 05:30:14,557 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1129 transitions. Word has length 202 [2020-09-25 05:30:14,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:14,558 INFO L479 AbstractCegarLoop]: Abstraction has 922 states and 1129 transitions. [2020-09-25 05:30:14,558 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 05:30:14,558 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1129 transitions. [2020-09-25 05:30:14,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-09-25 05:30:14,562 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:14,563 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 05:30:14,563 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 05:30:14,563 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:14,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:14,564 INFO L82 PathProgramCache]: Analyzing trace with hash 992070410, now seen corresponding path program 1 times [2020-09-25 05:30:14,564 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:14,564 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [442375446] [2020-09-25 05:30:14,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:14,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:14,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:14,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:14,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:15,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:15,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:16,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:18,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:18,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-25 05:30:18,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 05:30:18,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3608 [2020-09-25 05:30:18,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:18,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:18,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:18,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 208 [2020-09-25 05:30:18,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 05:30:18,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:18,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:18,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:18,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:18,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:18,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:30:18,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:18,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:30:18,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:18,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:18,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:18,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:18,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:18,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:30:18,300 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 05:30:18,301 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [442375446] [2020-09-25 05:30:18,301 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:30:18,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 05:30:18,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601458374] [2020-09-25 05:30:18,302 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 05:30:18,302 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:18,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 05:30:18,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:30:18,304 INFO L87 Difference]: Start difference. First operand 922 states and 1129 transitions. Second operand 3 states. [2020-09-25 05:30:18,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:18,384 INFO L93 Difference]: Finished difference Result 1701 states and 2116 transitions. [2020-09-25 05:30:18,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 05:30:18,385 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 226 [2020-09-25 05:30:18,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:18,391 INFO L225 Difference]: With dead ends: 1701 [2020-09-25 05:30:18,391 INFO L226 Difference]: Without dead ends: 1115 [2020-09-25 05:30:18,393 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 05:30:18,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2020-09-25 05:30:18,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 1115. [2020-09-25 05:30:18,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1115 states. [2020-09-25 05:30:18,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1115 states to 1115 states and 1374 transitions. [2020-09-25 05:30:18,423 INFO L78 Accepts]: Start accepts. Automaton has 1115 states and 1374 transitions. Word has length 226 [2020-09-25 05:30:18,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:18,424 INFO L479 AbstractCegarLoop]: Abstraction has 1115 states and 1374 transitions. [2020-09-25 05:30:18,424 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 05:30:18,424 INFO L276 IsEmpty]: Start isEmpty. Operand 1115 states and 1374 transitions. [2020-09-25 05:30:18,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2020-09-25 05:30:18,429 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:18,429 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 05:30:18,430 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 05:30:18,430 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:18,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:18,430 INFO L82 PathProgramCache]: Analyzing trace with hash -189283057, now seen corresponding path program 1 times [2020-09-25 05:30:18,430 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:18,431 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1587906297] [2020-09-25 05:30:18,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:18,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:18,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:18,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:18,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:19,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:19,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 260 [2020-09-25 05:30:19,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:30:19,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1124 [2020-09-25 05:30:19,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:19,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:19,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:19,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-09-25 05:30:19,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 05:30:19,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:19,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:19,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:19,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:19,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:19,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:30:19,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:19,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:30:19,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:19,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:19,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:19,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:19,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:19,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 05:30:19,688 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 05:30:19,689 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1587906297] [2020-09-25 05:30:19,689 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:30:19,689 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 05:30:19,689 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461513474] [2020-09-25 05:30:19,690 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 05:30:19,690 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:19,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 05:30:19,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:30:19,691 INFO L87 Difference]: Start difference. First operand 1115 states and 1374 transitions. Second operand 3 states. [2020-09-25 05:30:19,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:19,963 INFO L93 Difference]: Finished difference Result 2397 states and 3101 transitions. [2020-09-25 05:30:19,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 05:30:19,964 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 251 [2020-09-25 05:30:19,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:19,972 INFO L225 Difference]: With dead ends: 2397 [2020-09-25 05:30:19,972 INFO L226 Difference]: Without dead ends: 1420 [2020-09-25 05:30:19,975 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 05:30:19,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1420 states. [2020-09-25 05:30:20,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1420 to 1335. [2020-09-25 05:30:20,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1335 states. [2020-09-25 05:30:20,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1335 states to 1335 states and 1639 transitions. [2020-09-25 05:30:20,012 INFO L78 Accepts]: Start accepts. Automaton has 1335 states and 1639 transitions. Word has length 251 [2020-09-25 05:30:20,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:20,013 INFO L479 AbstractCegarLoop]: Abstraction has 1335 states and 1639 transitions. [2020-09-25 05:30:20,013 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 05:30:20,013 INFO L276 IsEmpty]: Start isEmpty. Operand 1335 states and 1639 transitions. [2020-09-25 05:30:20,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2020-09-25 05:30:20,018 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:20,019 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 05:30:20,019 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 05:30:20,019 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:20,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:20,019 INFO L82 PathProgramCache]: Analyzing trace with hash -552259409, now seen corresponding path program 1 times [2020-09-25 05:30:20,020 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:20,020 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [36312067] [2020-09-25 05:30:20,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:20,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:20,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:20,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:20,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:20,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 260 [2020-09-25 05:30:20,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:30:20,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 808 [2020-09-25 05:30:20,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:20,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:20,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:30:20,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 05:30:20,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-09-25 05:30:20,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:20,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:20,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:20,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:20,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:20,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:30:20,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:20,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:30:20,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:20,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:20,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:20,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:20,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:20,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:21,041 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 05:30:21,041 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [36312067] [2020-09-25 05:30:21,042 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:30:21,043 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 05:30:21,043 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660723261] [2020-09-25 05:30:21,043 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 05:30:21,044 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:21,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 05:30:21,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:30:21,044 INFO L87 Difference]: Start difference. First operand 1335 states and 1639 transitions. Second operand 6 states. [2020-09-25 05:30:21,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:21,304 INFO L93 Difference]: Finished difference Result 2669 states and 3334 transitions. [2020-09-25 05:30:21,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 05:30:21,304 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 251 [2020-09-25 05:30:21,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:21,313 INFO L225 Difference]: With dead ends: 2669 [2020-09-25 05:30:21,314 INFO L226 Difference]: Without dead ends: 1477 [2020-09-25 05:30:21,317 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 05:30:21,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1477 states. [2020-09-25 05:30:21,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1477 to 1425. [2020-09-25 05:30:21,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1425 states. [2020-09-25 05:30:21,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 1779 transitions. [2020-09-25 05:30:21,384 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 1779 transitions. Word has length 251 [2020-09-25 05:30:21,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:21,385 INFO L479 AbstractCegarLoop]: Abstraction has 1425 states and 1779 transitions. [2020-09-25 05:30:21,385 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 05:30:21,385 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 1779 transitions. [2020-09-25 05:30:21,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2020-09-25 05:30:21,391 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:21,391 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 05:30:21,392 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 05:30:21,392 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:21,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:21,392 INFO L82 PathProgramCache]: Analyzing trace with hash -349484375, now seen corresponding path program 1 times [2020-09-25 05:30:21,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:21,393 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [501770132] [2020-09-25 05:30:21,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:21,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:21,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:21,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:21,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:21,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-09-25 05:30:21,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:30:21,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 504 [2020-09-25 05:30:21,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:21,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:21,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:30:21,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 05:30:21,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-09-25 05:30:21,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:22,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:22,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:22,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:22,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:22,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:30:22,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:22,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:30:22,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:22,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:22,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:22,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:22,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:22,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:22,128 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 05:30:22,128 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [501770132] [2020-09-25 05:30:22,129 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:30:22,129 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 05:30:22,129 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832753962] [2020-09-25 05:30:22,130 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 05:30:22,130 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:22,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 05:30:22,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:30:22,131 INFO L87 Difference]: Start difference. First operand 1425 states and 1779 transitions. Second operand 6 states. [2020-09-25 05:30:22,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:22,322 INFO L93 Difference]: Finished difference Result 2710 states and 3415 transitions. [2020-09-25 05:30:22,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 05:30:22,323 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 252 [2020-09-25 05:30:22,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:22,331 INFO L225 Difference]: With dead ends: 2710 [2020-09-25 05:30:22,331 INFO L226 Difference]: Without dead ends: 1428 [2020-09-25 05:30:22,335 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 05:30:22,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2020-09-25 05:30:22,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1428. [2020-09-25 05:30:22,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1428 states. [2020-09-25 05:30:22,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1782 transitions. [2020-09-25 05:30:22,374 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1782 transitions. Word has length 252 [2020-09-25 05:30:22,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:22,375 INFO L479 AbstractCegarLoop]: Abstraction has 1428 states and 1782 transitions. [2020-09-25 05:30:22,375 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 05:30:22,375 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1782 transitions. [2020-09-25 05:30:22,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2020-09-25 05:30:22,382 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:22,383 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 05:30:22,383 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 05:30:22,383 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:22,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:22,384 INFO L82 PathProgramCache]: Analyzing trace with hash 127538036, now seen corresponding path program 1 times [2020-09-25 05:30:22,384 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:22,384 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [948256300] [2020-09-25 05:30:22,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:22,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 05:30:22,449 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 05:30:22,450 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 05:30:22,456 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 05:30:22,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 05:30:22 BoogieIcfgContainer [2020-09-25 05:30:22,503 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 05:30:22,507 INFO L168 Benchmark]: Toolchain (without parser) took 14922.63 ms. Allocated memory was 140.5 MB in the beginning and 406.3 MB in the end (delta: 265.8 MB). Free memory was 103.4 MB in the beginning and 350.4 MB in the end (delta: -247.0 MB). Peak memory consumption was 18.8 MB. Max. memory is 7.1 GB. [2020-09-25 05:30:22,512 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-09-25 05:30:22,513 INFO L168 Benchmark]: CACSL2BoogieTranslator took 652.03 ms. Allocated memory was 140.5 MB in the beginning and 207.6 MB in the end (delta: 67.1 MB). Free memory was 102.8 MB in the beginning and 183.0 MB in the end (delta: -80.3 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. [2020-09-25 05:30:22,514 INFO L168 Benchmark]: Boogie Preprocessor took 64.60 ms. Allocated memory is still 207.6 MB. Free memory was 183.0 MB in the beginning and 180.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-09-25 05:30:22,514 INFO L168 Benchmark]: RCFGBuilder took 1103.49 ms. Allocated memory is still 207.6 MB. Free memory was 180.4 MB in the beginning and 116.6 MB in the end (delta: 63.8 MB). Peak memory consumption was 63.8 MB. Max. memory is 7.1 GB. [2020-09-25 05:30:22,515 INFO L168 Benchmark]: TraceAbstraction took 13092.47 ms. Allocated memory was 207.6 MB in the beginning and 406.3 MB in the end (delta: 198.7 MB). Free memory was 115.9 MB in the beginning and 350.4 MB in the end (delta: -234.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 05:30:22,528 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 652.03 ms. Allocated memory was 140.5 MB in the beginning and 207.6 MB in the end (delta: 67.1 MB). Free memory was 102.8 MB in the beginning and 183.0 MB in the end (delta: -80.3 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 64.60 ms. Allocated memory is still 207.6 MB. Free memory was 183.0 MB in the beginning and 180.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1103.49 ms. Allocated memory is still 207.6 MB. Free memory was 180.4 MB in the beginning and 116.6 MB in the end (delta: 63.8 MB). Peak memory consumption was 63.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13092.47 ms. Allocated memory was 207.6 MB in the beginning and 406.3 MB in the end (delta: 198.7 MB). Free memory was 115.9 MB in the beginning and 350.4 MB in the end (delta: -234.5 MB). There was no memory consumed. 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: 12.9s, OverallIterations: 8, TraceHistogramMax: 6, AutomataDifference: 1.2s, 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, 0.5s 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...