/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 --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 interpolation-heuristic=FIRST --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_srvr_10.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:22:46,283 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:22:46,287 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:22:46,313 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:22:46,314 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:22:46,315 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:22:46,316 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:22:46,318 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:22:46,320 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:22:46,320 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:22:46,321 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:22:46,323 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:22:46,323 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:22:46,324 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:22:46,325 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:22:46,327 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:22:46,328 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:22:46,329 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:22:46,331 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:22:46,333 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:22:46,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:22:46,336 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:22:46,337 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:22:46,338 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:22:46,341 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:22:46,341 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:22:46,341 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:22:46,342 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:22:46,343 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:22:46,344 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:22:46,344 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:22:46,345 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:22:46,346 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:22:46,349 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:22:46,351 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:22:46,351 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:22:46,352 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:22:46,352 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:22:46,352 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:22:46,354 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:22:46,354 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:22:46,355 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 [2020-09-21 11:22:46,417 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:22:46,417 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:22:46,418 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:22:46,420 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:22:46,421 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:22:46,421 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:22:46,421 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:22:46,421 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:22:46,421 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:22:46,422 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:22:46,422 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:22:46,422 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:22:46,422 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:22:46,422 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:22:46,423 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:22:46,423 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:22:46,423 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:22:46,423 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:22:46,423 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:22:46,425 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:22:46,425 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:22:46,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:22:46,426 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:22:46,426 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:22:46,426 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:22:46,426 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:22:46,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:22:46,427 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:22:46,427 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:22:46,427 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:22:46,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:22:46,967 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:22:46,971 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:22:46,973 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:22:46,974 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:22:46,975 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_10.cil.c [2020-09-21 11:22:47,060 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e1b6fa216/861a1e2b593f411bbf47c5796645cedb/FLAG400262ca6 [2020-09-21 11:22:47,682 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:22:47,683 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_srvr_10.cil.c [2020-09-21 11:22:47,697 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e1b6fa216/861a1e2b593f411bbf47c5796645cedb/FLAG400262ca6 [2020-09-21 11:22:47,995 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e1b6fa216/861a1e2b593f411bbf47c5796645cedb [2020-09-21 11:22:48,013 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:22:48,022 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:22:48,024 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:22:48,024 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:22:48,029 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:22:48,030 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:22:47" (1/1) ... [2020-09-21 11:22:48,035 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18f38a44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:22:48, skipping insertion in model container [2020-09-21 11:22:48,036 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:22:47" (1/1) ... [2020-09-21 11:22:48,046 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:22:48,118 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:22:48,428 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:22:48,436 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:22:48,600 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:22:48,619 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:22:48,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:22:48 WrapperNode [2020-09-21 11:22:48,620 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:22:48,621 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:22:48,621 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:22:48,621 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:22:48,639 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:22:48" (1/1) ... [2020-09-21 11:22:48,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:22:48" (1/1) ... [2020-09-21 11:22:48,650 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:22:48" (1/1) ... [2020-09-21 11:22:48,651 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:22:48" (1/1) ... [2020-09-21 11:22:48,673 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:22:48" (1/1) ... [2020-09-21 11:22:48,699 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:22:48" (1/1) ... [2020-09-21 11:22:48,703 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:22:48" (1/1) ... [2020-09-21 11:22:48,709 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:22:48,710 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:22:48,710 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:22:48,717 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:22:48,718 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:22:48" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:22:48,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:22:48,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:22:48,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2020-09-21 11:22:48,799 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:22:48,799 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:22:48,799 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-21 11:22:48,799 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:22:48,799 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-21 11:22:48,799 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2020-09-21 11:22:48,800 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:22:48,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:22:48,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:22:49,053 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-21 11:22:49,595 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2020-09-21 11:22:49,596 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2020-09-21 11:22:49,610 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:22:49,611 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-21 11:22:49,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:22:49 BoogieIcfgContainer [2020-09-21 11:22:49,618 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:22:49,620 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:22:49,620 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:22:49,624 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:22:49,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:22:47" (1/3) ... [2020-09-21 11:22:49,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33d8636a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:22:49, skipping insertion in model container [2020-09-21 11:22:49,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:22:48" (2/3) ... [2020-09-21 11:22:49,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33d8636a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:22:49, skipping insertion in model container [2020-09-21 11:22:49,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:22:49" (3/3) ... [2020-09-21 11:22:49,629 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_10.cil.c [2020-09-21 11:22:49,642 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:22:49,653 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:22:49,678 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:22:49,713 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:22:49,714 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:22:49,714 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:22:49,714 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:22:49,714 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:22:49,714 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:22:49,715 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:22:49,715 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:22:49,743 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states. [2020-09-21 11:22:49,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-09-21 11:22:49,753 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:22:49,754 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] [2020-09-21 11:22:49,754 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:22:49,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:22:49,760 INFO L82 PathProgramCache]: Analyzing trace with hash 2014227619, now seen corresponding path program 1 times [2020-09-21 11:22:49,772 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:22:49,772 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1294578295] [2020-09-21 11:22:49,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:22:49,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:50,103 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:50,104 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:50,104 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:50,104 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:50,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-21 11:22:50,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:50,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-09-21 11:22:50,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:50,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:22:50,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:22:50,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-21 11:22:50,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:50,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:22:50,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:50,225 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:50,225 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:50,226 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:50,226 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:50,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:22:50,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:50,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:22:50,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:50,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:22:50,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:50,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:22:50,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:50,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:22:50,242 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1294578295] [2020-09-21 11:22:50,244 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:22:50,245 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 11:22:50,246 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640842722] [2020-09-21 11:22:50,253 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:22:50,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:22:50,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:22:50,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:22:50,278 INFO L87 Difference]: Start difference. First operand 155 states. Second operand 5 states. [2020-09-21 11:22:50,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:22:50,628 INFO L93 Difference]: Finished difference Result 325 states and 548 transitions. [2020-09-21 11:22:50,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:22:50,631 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-09-21 11:22:50,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:22:50,649 INFO L225 Difference]: With dead ends: 325 [2020-09-21 11:22:50,649 INFO L226 Difference]: Without dead ends: 162 [2020-09-21 11:22:50,655 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:22:50,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-09-21 11:22:50,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 159. [2020-09-21 11:22:50,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2020-09-21 11:22:50,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 238 transitions. [2020-09-21 11:22:50,724 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 238 transitions. Word has length 28 [2020-09-21 11:22:50,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:22:50,725 INFO L479 AbstractCegarLoop]: Abstraction has 159 states and 238 transitions. [2020-09-21 11:22:50,725 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:22:50,725 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 238 transitions. [2020-09-21 11:22:50,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-09-21 11:22:50,726 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:22:50,727 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] [2020-09-21 11:22:50,727 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:22:50,727 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:22:50,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:22:50,728 INFO L82 PathProgramCache]: Analyzing trace with hash -1592117890, now seen corresponding path program 1 times [2020-09-21 11:22:50,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:22:50,728 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [937414936] [2020-09-21 11:22:50,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:22:50,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 11:22:50,768 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 11:22:50,769 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 11:22:50,775 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:22:50,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:22:50 BoogieIcfgContainer [2020-09-21 11:22:50,804 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:22:50,807 INFO L168 Benchmark]: Toolchain (without parser) took 2790.69 ms. Allocated memory was 140.0 MB in the beginning and 237.0 MB in the end (delta: 97.0 MB). Free memory was 102.8 MB in the beginning and 168.2 MB in the end (delta: -65.4 MB). Peak memory consumption was 31.6 MB. Max. memory is 7.1 GB. [2020-09-21 11:22:50,809 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-21 11:22:50,810 INFO L168 Benchmark]: CACSL2BoogieTranslator took 596.37 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 102.2 MB in the beginning and 177.3 MB in the end (delta: -75.2 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. [2020-09-21 11:22:50,811 INFO L168 Benchmark]: Boogie Preprocessor took 88.85 ms. Allocated memory is still 202.4 MB. Free memory was 177.3 MB in the beginning and 174.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-09-21 11:22:50,812 INFO L168 Benchmark]: RCFGBuilder took 908.12 ms. Allocated memory is still 202.4 MB. Free memory was 174.4 MB in the beginning and 123.2 MB in the end (delta: 51.2 MB). Peak memory consumption was 51.2 MB. Max. memory is 7.1 GB. [2020-09-21 11:22:50,813 INFO L168 Benchmark]: TraceAbstraction took 1184.14 ms. Allocated memory was 202.4 MB in the beginning and 237.0 MB in the end (delta: 34.6 MB). Free memory was 122.6 MB in the beginning and 168.2 MB in the end (delta: -45.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-21 11:22:50,817 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 596.37 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 102.2 MB in the beginning and 177.3 MB in the end (delta: -75.2 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 88.85 ms. Allocated memory is still 202.4 MB. Free memory was 177.3 MB in the beginning and 174.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 908.12 ms. Allocated memory is still 202.4 MB. Free memory was 174.4 MB in the beginning and 123.2 MB in the end (delta: 51.2 MB). Peak memory consumption was 51.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1184.14 ms. Allocated memory was 202.4 MB in the beginning and 237.0 MB in the end (delta: 34.6 MB). Free memory was 122.6 MB in the beginning and 168.2 MB in the end (delta: -45.7 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 628]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L634] int s ; [L635] int tmp ; [L639] s = 8464 [L640] CALL ssl3_accept(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__hit = __VERIFIER_nondet_int() ; [L20] int s__rwstate ; [L21] int s__init_buf___0 = 1; [L22] int s__debug = __VERIFIER_nondet_int() ; [L23] int s__shutdown ; [L24] int s__cert = __VERIFIER_nondet_int() ; [L25] int s__options = __VERIFIER_nondet_int() ; [L26] int s__verify_mode = __VERIFIER_nondet_int() ; [L27] int s__session__peer = __VERIFIER_nondet_int() ; [L28] int s__cert__pkeys__AT0__privatekey = __VERIFIER_nondet_int() ; [L29] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L30] int s__ctx__stats__sess_accept_renegotiate = __VERIFIER_nondet_int() ; [L31] int s__ctx__stats__sess_accept = __VERIFIER_nondet_int() ; [L32] int s__ctx__stats__sess_accept_good = __VERIFIER_nondet_int() ; [L33] int s__s3__tmp__cert_request ; [L34] int s__s3__tmp__reuse_message ; [L35] int s__s3__tmp__use_rsa_tmp ; [L36] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L37] int s__s3__tmp__new_cipher__algorithms ; [L38] int s__s3__tmp__next_state___0 ; [L39] int s__s3__tmp__new_cipher__algo_strength = __VERIFIER_nondet_int() ; [L40] int s__session__cipher ; [L41] int buf = __VERIFIER_nondet_int() ; [L42] unsigned long l ; [L43] unsigned long Time ; [L44] unsigned long tmp = __VERIFIER_nondet_long() ; [L45] int cb ; [L46] long num1 ; [L47] int ret ; [L48] int new_state ; [L49] int state ; [L50] int skip ; [L51] int got_new_session ; [L52] int tmp___1 = __VERIFIER_nondet_int() ; [L53] int tmp___2 = __VERIFIER_nondet_int() ; [L54] int tmp___3 ; [L55] int tmp___4 ; [L56] int tmp___5 ; [L57] int tmp___6 ; [L58] int tmp___7 ; [L59] long tmp___8 = __VERIFIER_nondet_long() ; [L60] int tmp___9 ; [L61] int tmp___10 ; [L62] int blastFlag ; [L63] int __cil_tmp55 ; [L64] unsigned long __cil_tmp56 ; [L65] unsigned long __cil_tmp57 ; [L66] unsigned long __cil_tmp58 ; [L67] unsigned long __cil_tmp59 ; [L68] int __cil_tmp60 ; [L69] unsigned long __cil_tmp61 ; [L72] s__s3__tmp__new_cipher__algorithms = 0 [L73] __cil_tmp56 = 0 [L74] __cil_tmp57 = 0 [L75] __cil_tmp58 = 0 [L76] __cil_tmp59 = 0 [L77] __cil_tmp60 = 0 [L78] __cil_tmp61 = 0 [L79] s__s3__tmp__reuse_message = 0 [L80] s__state = initial_state [L81] blastFlag = 0 [L82] Time = tmp [L83] cb = 0 [L84] ret = -1 [L85] skip = 0 [L86] got_new_session = 0 [L87] COND TRUE s__info_callback != 0 [L88] cb = s__info_callback [L94] s__in_handshake ++ [L95] COND FALSE !(tmp___1 + 12288) [L100] COND FALSE !(s__cert == 0) [L104] COND TRUE 1 [L106] state = s__state [L107] COND FALSE !(s__state == 12292) [L110] COND FALSE !(s__state == 16384) [L113] COND FALSE !(s__state == 8192) [L116] COND FALSE !(s__state == 24576) [L119] COND FALSE !(s__state == 8195) [L122] COND FALSE !(s__state == 8480) [L125] COND FALSE !(s__state == 8481) [L128] COND FALSE !(s__state == 8482) [L131] COND TRUE s__state == 8464 [L275] s__shutdown = 0 [L276] ret = __VERIFIER_nondet_int() [L277] COND TRUE blastFlag == 0 [L278] blastFlag = 1 [L280] COND FALSE !(ret <= 0) [L283] got_new_session = 1 [L284] s__state = 8496 [L285] s__init_num = 0 [L591] COND TRUE ! s__s3__tmp__reuse_message [L592] COND TRUE ! skip [L593] COND TRUE state == 8464 [L594] COND TRUE s__state == 8496 [L595] COND TRUE cb != 0 [L596] COND TRUE s__info_callback != 0 [L628] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 155 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 256 SDtfs, 302 SDslu, 405 SDs, 0 SdLazy, 128 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=159occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 1485 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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...