/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_6.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 13:18:17,525 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 13:18:17,528 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 13:18:17,540 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 13:18:17,541 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 13:18:17,542 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 13:18:17,543 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 13:18:17,545 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 13:18:17,547 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 13:18:17,548 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 13:18:17,549 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 13:18:17,550 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 13:18:17,550 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 13:18:17,551 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 13:18:17,552 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 13:18:17,554 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 13:18:17,555 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 13:18:17,555 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 13:18:17,557 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 13:18:17,559 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 13:18:17,561 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 13:18:17,562 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 13:18:17,563 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 13:18:17,564 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 13:18:17,567 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 13:18:17,575 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 13:18:17,576 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 13:18:17,576 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 13:18:17,577 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-17 13:18:17,587 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 13:18:17,587 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 13:18:17,589 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 13:18:17,589 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 13:18:17,589 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 13:18:17,589 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 13:18:17,589 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 13:18:17,590 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 13:18:17,590 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 13:18:17,590 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 13:18:17,590 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 13:18:17,590 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 13:18:17,591 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 13:18:17,591 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 13:18:17,591 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 13:18:17,591 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-17 13:18:17,591 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 13:18:17,592 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 13:18:17,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 13:18:17,592 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 13:18:17,592 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-17 13:18:17,592 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 13:18:17,593 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-17 13:18:17,883 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 13:18:17,903 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 13:18:17,908 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 13:18:17,910 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 13:18:17,911 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 13:18:17,913 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_6.cil-1.c [2020-07-17 13:18:18,005 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5fc60159/cf612ed5a9f74566afd042383418be68/FLAGb26094c62 [2020-07-17 13:18:18,521 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 13:18:18,522 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ssh-simplified/s3_srvr_6.cil-1.c [2020-07-17 13:18:18,547 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5fc60159/cf612ed5a9f74566afd042383418be68/FLAGb26094c62 [2020-07-17 13:18:18,844 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5fc60159/cf612ed5a9f74566afd042383418be68 [2020-07-17 13:18:18,855 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 13:18:18,858 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 13:18:18,859 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 13:18:18,859 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 13:18:18,864 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 13:18:18,865 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 01:18:18" (1/1) ... [2020-07-17 13:18:18,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51250ad3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:18:18, skipping insertion in model container [2020-07-17 13:18:18,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 01:18:18" (1/1) ... [2020-07-17 13:18:18,877 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 13:18:18,952 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 13:18:19,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 13:18:19,327 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 13:18:19,502 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 13:18:19,517 INFO L208 MainTranslator]: Completed translation [2020-07-17 13:18:19,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:18:19 WrapperNode [2020-07-17 13:18:19,518 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 13:18:19,520 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 13:18:19,520 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 13:18:19,520 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 13:18:19,532 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:18:19" (1/1) ... [2020-07-17 13:18:19,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:18:19" (1/1) ... [2020-07-17 13:18:19,543 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:18:19" (1/1) ... [2020-07-17 13:18:19,543 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:18:19" (1/1) ... [2020-07-17 13:18:19,557 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:18:19" (1/1) ... [2020-07-17 13:18:19,573 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:18:19" (1/1) ... [2020-07-17 13:18:19,576 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:18:19" (1/1) ... [2020-07-17 13:18:19,582 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 13:18:19,583 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 13:18:19,583 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 13:18:19,583 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 13:18:19,584 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:18:19" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-07-17 13:18:19,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 13:18:19,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 13:18:19,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2020-07-17 13:18:19,651 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 13:18:19,651 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 13:18:19,651 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-07-17 13:18:19,651 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 13:18:19,651 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-07-17 13:18:19,651 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2020-07-17 13:18:19,651 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 13:18:19,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 13:18:19,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 13:18:19,932 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-17 13:18:20,599 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##93: assume !false; [2020-07-17 13:18:20,599 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##92: assume false; [2020-07-17 13:18:20,616 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 13:18:20,616 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-17 13:18:20,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 01:18:20 BoogieIcfgContainer [2020-07-17 13:18:20,629 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 13:18:20,631 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 13:18:20,632 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 13:18:20,636 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 13:18:20,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 01:18:18" (1/3) ... [2020-07-17 13:18:20,640 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c373284 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 01:18:20, skipping insertion in model container [2020-07-17 13:18:20,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:18:19" (2/3) ... [2020-07-17 13:18:20,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c373284 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 01:18:20, skipping insertion in model container [2020-07-17 13:18:20,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 01:18:20" (3/3) ... [2020-07-17 13:18:20,645 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_6.cil-1.c [2020-07-17 13:18:20,657 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-17 13:18:20,669 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 13:18:20,680 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 13:18:20,702 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 13:18:20,702 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 13:18:20,702 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-17 13:18:20,703 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 13:18:20,703 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 13:18:20,703 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 13:18:20,703 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 13:18:20,703 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 13:18:20,729 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states. [2020-07-17 13:18:20,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-07-17 13:18:20,747 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:18:20,749 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] [2020-07-17 13:18:20,749 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:18:20,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:18:20,756 INFO L82 PathProgramCache]: Analyzing trace with hash -1494295425, now seen corresponding path program 1 times [2020-07-17 13:18:20,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:18:20,766 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [292919276] [2020-07-17 13:18:20,767 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:18:20,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:18:21,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:18:21,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:18:21,125 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:18:21,127 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [292919276] [2020-07-17 13:18:21,129 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:18:21,130 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 13:18:21,130 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891404077] [2020-07-17 13:18:21,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 13:18:21,136 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:18:21,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 13:18:21,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 13:18:21,154 INFO L87 Difference]: Start difference. First operand 446 states. Second operand 3 states. [2020-07-17 13:18:21,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:18:21,364 INFO L93 Difference]: Finished difference Result 1040 states and 1383 transitions. [2020-07-17 13:18:21,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 13:18:21,366 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 138 [2020-07-17 13:18:21,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:18:21,390 INFO L225 Difference]: With dead ends: 1040 [2020-07-17 13:18:21,391 INFO L226 Difference]: Without dead ends: 678 [2020-07-17 13:18:21,398 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 13:18:21,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2020-07-17 13:18:21,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 676. [2020-07-17 13:18:21,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 676 states. [2020-07-17 13:18:21,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 843 transitions. [2020-07-17 13:18:21,518 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 843 transitions. Word has length 138 [2020-07-17 13:18:21,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:18:21,519 INFO L479 AbstractCegarLoop]: Abstraction has 676 states and 843 transitions. [2020-07-17 13:18:21,519 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 13:18:21,519 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 843 transitions. [2020-07-17 13:18:21,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-07-17 13:18:21,522 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:18:21,523 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] [2020-07-17 13:18:21,523 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 13:18:21,523 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:18:21,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:18:21,524 INFO L82 PathProgramCache]: Analyzing trace with hash 921362346, now seen corresponding path program 1 times [2020-07-17 13:18:21,524 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:18:21,524 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [720523861] [2020-07-17 13:18:21,525 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:18:21,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 13:18:21,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 13:18:21,663 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:18:21,664 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-17 13:18:21,664 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 13:18:21,668 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 13:18:21,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 01:18:21 BoogieIcfgContainer [2020-07-17 13:18:21,708 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 13:18:21,711 INFO L168 Benchmark]: Toolchain (without parser) took 2853.64 ms. Allocated memory was 145.8 MB in the beginning and 235.9 MB in the end (delta: 90.2 MB). Free memory was 103.3 MB in the beginning and 126.2 MB in the end (delta: -22.8 MB). Peak memory consumption was 67.4 MB. Max. memory is 7.1 GB. [2020-07-17 13:18:21,713 INFO L168 Benchmark]: CDTParser took 1.07 ms. Allocated memory is still 145.8 MB. Free memory was 122.3 MB in the beginning and 122.1 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-17 13:18:21,715 INFO L168 Benchmark]: CACSL2BoogieTranslator took 660.22 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 103.1 MB in the beginning and 178.0 MB in the end (delta: -74.8 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. [2020-07-17 13:18:21,718 INFO L168 Benchmark]: Boogie Preprocessor took 62.72 ms. Allocated memory is still 202.4 MB. Free memory was 178.0 MB in the beginning and 174.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2020-07-17 13:18:21,718 INFO L168 Benchmark]: RCFGBuilder took 1045.87 ms. Allocated memory is still 202.4 MB. Free memory was 174.9 MB in the beginning and 100.1 MB in the end (delta: 74.8 MB). Peak memory consumption was 74.8 MB. Max. memory is 7.1 GB. [2020-07-17 13:18:21,723 INFO L168 Benchmark]: TraceAbstraction took 1076.91 ms. Allocated memory was 202.4 MB in the beginning and 235.9 MB in the end (delta: 33.6 MB). Free memory was 99.4 MB in the beginning and 126.2 MB in the end (delta: -26.7 MB). Peak memory consumption was 6.8 MB. Max. memory is 7.1 GB. [2020-07-17 13:18:21,735 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.07 ms. Allocated memory is still 145.8 MB. Free memory was 122.3 MB in the beginning and 122.1 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 660.22 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 103.1 MB in the beginning and 178.0 MB in the end (delta: -74.8 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 62.72 ms. Allocated memory is still 202.4 MB. Free memory was 178.0 MB in the beginning and 174.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1045.87 ms. Allocated memory is still 202.4 MB. Free memory was 174.9 MB in the beginning and 100.1 MB in the end (delta: 74.8 MB). Peak memory consumption was 74.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1076.91 ms. Allocated memory was 202.4 MB in the beginning and 235.9 MB in the end (delta: 33.6 MB). Free memory was 99.4 MB in the beginning and 126.2 MB in the end (delta: -26.7 MB). Peak memory consumption was 6.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 670]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L675] int s ; [L676] int tmp ; [L680] s = 8464 [L681] 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 = __VERIFIER_nondet_int() ; [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 = __VERIFIER_nondet_int() ; [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 ; [L42] unsigned long l ; [L43] unsigned long Time ; [L44] unsigned long tmp ; [L45] int cb ; [L46] long num1 = __VERIFIER_nondet_long() ; [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 = __VERIFIER_nondet_int() ; [L55] int tmp___4 = __VERIFIER_nondet_int() ; [L56] int tmp___5 = __VERIFIER_nondet_int() ; [L57] int tmp___6 = __VERIFIER_nondet_int() ; [L58] int tmp___7 ; [L59] long tmp___8 = __VERIFIER_nondet_long() ; [L60] int tmp___9 = __VERIFIER_nondet_int() ; [L61] int tmp___10 = __VERIFIER_nondet_int() ; [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 ; [L73] s__state = initial_state [L74] blastFlag = 0 [L75] tmp = __VERIFIER_nondet_int() [L76] Time = tmp [L77] cb = 0 [L78] ret = -1 [L79] skip = 0 [L80] got_new_session = 0 [L81] COND FALSE !(s__info_callback != 0) [L84] COND TRUE s__ctx__info_callback != 0 [L85] cb = s__ctx__info_callback [L87] COND TRUE cb != 0 [L670] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 446 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 954 SDtfs, 399 SDslu, 539 SDs, 0 SdLazy, 13 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=676occurred 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: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...