/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_10.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 18:59:33,623 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 18:59:33,627 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 18:59:33,670 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 18:59:33,670 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 18:59:33,684 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 18:59:33,686 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 18:59:33,691 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 18:59:33,693 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 18:59:33,696 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 18:59:33,697 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 18:59:33,702 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 18:59:33,702 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 18:59:33,705 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 18:59:33,708 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 18:59:33,710 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 18:59:33,712 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 18:59:33,713 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 18:59:33,716 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 18:59:33,726 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 18:59:33,730 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 18:59:33,731 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 18:59:33,732 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 18:59:33,733 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 18:59:33,736 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 18:59:33,748 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 18:59:33,749 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 18:59:33,750 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 18:59:33,751 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 18:59:33,762 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 18:59:33,763 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 18:59:33,765 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 18:59:33,765 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 18:59:33,765 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 18:59:33,766 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 18:59:33,766 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 18:59:33,766 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 18:59:33,766 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 18:59:33,766 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 18:59:33,767 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 18:59:33,767 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 18:59:33,767 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 18:59:33,767 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 18:59:33,767 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 18:59:33,768 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 18:59:33,768 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 18:59:33,768 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 18:59:33,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 18:59:33,769 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 18:59:33,769 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 18:59:33,769 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 18:59:33,770 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 18:59:34,126 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 18:59:34,151 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 18:59:34,155 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 18:59:34,157 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 18:59:34,158 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 18:59:34,159 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_10.cil.c [2020-08-22 18:59:34,250 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20e802356/7ed6bf317bbc45b981c583ec621fef46/FLAG67e06c189 [2020-08-22 18:59:34,864 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 18:59:34,865 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ssh-simplified/s3_srvr_10.cil.c [2020-08-22 18:59:34,892 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20e802356/7ed6bf317bbc45b981c583ec621fef46/FLAG67e06c189 [2020-08-22 18:59:35,105 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20e802356/7ed6bf317bbc45b981c583ec621fef46 [2020-08-22 18:59:35,118 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 18:59:35,121 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 18:59:35,122 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 18:59:35,123 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 18:59:35,127 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 18:59:35,129 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:59:35" (1/1) ... [2020-08-22 18:59:35,133 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c77fbdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:59:35, skipping insertion in model container [2020-08-22 18:59:35,133 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:59:35" (1/1) ... [2020-08-22 18:59:35,145 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 18:59:35,192 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 18:59:35,540 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:59:35,545 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 18:59:35,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:59:35,783 INFO L208 MainTranslator]: Completed translation [2020-08-22 18:59:35,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:59:35 WrapperNode [2020-08-22 18:59:35,784 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 18:59:35,785 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 18:59:35,785 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 18:59:35,785 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 18:59:35,798 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:59:35" (1/1) ... [2020-08-22 18:59:35,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:59:35" (1/1) ... [2020-08-22 18:59:35,809 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:59:35" (1/1) ... [2020-08-22 18:59:35,810 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:59:35" (1/1) ... [2020-08-22 18:59:35,824 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:59:35" (1/1) ... [2020-08-22 18:59:35,840 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:59:35" (1/1) ... [2020-08-22 18:59:35,844 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:59:35" (1/1) ... [2020-08-22 18:59:35,850 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 18:59:35,851 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 18:59:35,851 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 18:59:35,851 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 18:59:35,852 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:59:35" (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 [2020-08-22 18:59:35,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 18:59:35,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 18:59:35,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2020-08-22 18:59:35,940 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 18:59:35,940 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 18:59:35,940 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-08-22 18:59:35,941 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 18:59:35,941 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-08-22 18:59:35,941 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2020-08-22 18:59:35,941 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 18:59:35,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 18:59:35,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 18:59:36,188 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-08-22 18:59:36,990 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2020-08-22 18:59:36,991 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2020-08-22 18:59:37,009 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 18:59:37,010 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-22 18:59:37,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:59:37 BoogieIcfgContainer [2020-08-22 18:59:37,019 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 18:59:37,021 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 18:59:37,021 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 18:59:37,026 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 18:59:37,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 06:59:35" (1/3) ... [2020-08-22 18:59:37,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c6b1ca4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:59:37, skipping insertion in model container [2020-08-22 18:59:37,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:59:35" (2/3) ... [2020-08-22 18:59:37,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c6b1ca4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:59:37, skipping insertion in model container [2020-08-22 18:59:37,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:59:37" (3/3) ... [2020-08-22 18:59:37,032 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_10.cil.c [2020-08-22 18:59:37,046 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 18:59:37,058 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 18:59:37,076 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 18:59:37,106 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 18:59:37,107 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 18:59:37,107 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 18:59:37,107 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 18:59:37,107 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 18:59:37,107 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 18:59:37,108 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 18:59:37,108 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 18:59:37,136 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states. [2020-08-22 18:59:37,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-08-22 18:59:37,157 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:59:37,159 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] [2020-08-22 18:59:37,160 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:59:37,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:59:37,166 INFO L82 PathProgramCache]: Analyzing trace with hash 1669043660, now seen corresponding path program 1 times [2020-08-22 18:59:37,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:59:37,175 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [455142566] [2020-08-22 18:59:37,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:59:37,251 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:59:37,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:59:37,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:59:37,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:59:37,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:59:37,745 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [455142566] [2020-08-22 18:59:37,748 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:59:37,748 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 18:59:37,749 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196918742] [2020-08-22 18:59:37,756 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 18:59:37,756 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:59:37,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 18:59:37,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 18:59:37,779 INFO L87 Difference]: Start difference. First operand 424 states. Second operand 6 states. [2020-08-22 18:59:38,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:59:38,433 INFO L93 Difference]: Finished difference Result 806 states and 1062 transitions. [2020-08-22 18:59:38,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 18:59:38,435 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 150 [2020-08-22 18:59:38,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:59:38,457 INFO L225 Difference]: With dead ends: 806 [2020-08-22 18:59:38,458 INFO L226 Difference]: Without dead ends: 459 [2020-08-22 18:59:38,466 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 [2020-08-22 18:59:38,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2020-08-22 18:59:38,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 443. [2020-08-22 18:59:38,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2020-08-22 18:59:38,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 527 transitions. [2020-08-22 18:59:38,587 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 527 transitions. Word has length 150 [2020-08-22 18:59:38,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:59:38,588 INFO L479 AbstractCegarLoop]: Abstraction has 443 states and 527 transitions. [2020-08-22 18:59:38,588 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 18:59:38,589 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 527 transitions. [2020-08-22 18:59:38,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-08-22 18:59:38,593 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:59:38,594 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] [2020-08-22 18:59:38,594 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 18:59:38,594 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:59:38,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:59:38,595 INFO L82 PathProgramCache]: Analyzing trace with hash -67103983, now seen corresponding path program 1 times [2020-08-22 18:59:38,595 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:59:38,596 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1742466963] [2020-08-22 18:59:38,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:59:38,599 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:59:38,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:59:38,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:59:38,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:59:38,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:59:38,791 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1742466963] [2020-08-22 18:59:38,792 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:59:38,792 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 18:59:38,792 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608359728] [2020-08-22 18:59:38,794 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 18:59:38,794 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:59:38,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 18:59:38,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:59:38,795 INFO L87 Difference]: Start difference. First operand 443 states and 527 transitions. Second operand 3 states. [2020-08-22 18:59:38,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:59:38,921 INFO L93 Difference]: Finished difference Result 1050 states and 1294 transitions. [2020-08-22 18:59:38,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 18:59:38,922 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-08-22 18:59:38,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:59:38,928 INFO L225 Difference]: With dead ends: 1050 [2020-08-22 18:59:38,928 INFO L226 Difference]: Without dead ends: 742 [2020-08-22 18:59:38,932 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 [2020-08-22 18:59:38,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2020-08-22 18:59:38,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 740. [2020-08-22 18:59:38,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 740 states. [2020-08-22 18:59:39,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 899 transitions. [2020-08-22 18:59:39,002 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 899 transitions. Word has length 159 [2020-08-22 18:59:39,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:59:39,003 INFO L479 AbstractCegarLoop]: Abstraction has 740 states and 899 transitions. [2020-08-22 18:59:39,003 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 18:59:39,003 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 899 transitions. [2020-08-22 18:59:39,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-08-22 18:59:39,007 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:59:39,007 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] [2020-08-22 18:59:39,008 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 18:59:39,008 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:59:39,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:59:39,008 INFO L82 PathProgramCache]: Analyzing trace with hash -1777748737, now seen corresponding path program 1 times [2020-08-22 18:59:39,009 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:59:39,009 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1583040028] [2020-08-22 18:59:39,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:59:39,012 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:59:39,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 18:59:39,058 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 18:59:39,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 18:59:39,123 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 18:59:39,197 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 18:59:39,198 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 18:59:39,200 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 18:59:39,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 06:59:39 BoogieIcfgContainer [2020-08-22 18:59:39,249 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 18:59:39,254 INFO L168 Benchmark]: Toolchain (without parser) took 4131.05 ms. Allocated memory was 138.4 MB in the beginning and 249.0 MB in the end (delta: 110.6 MB). Free memory was 101.8 MB in the beginning and 120.7 MB in the end (delta: -18.9 MB). Peak memory consumption was 91.7 MB. Max. memory is 7.1 GB. [2020-08-22 18:59:39,259 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 138.4 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-08-22 18:59:39,263 INFO L168 Benchmark]: CACSL2BoogieTranslator took 662.36 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 101.6 MB in the beginning and 177.4 MB in the end (delta: -75.9 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2020-08-22 18:59:39,264 INFO L168 Benchmark]: Boogie Preprocessor took 64.97 ms. Allocated memory is still 202.9 MB. Free memory was 177.4 MB in the beginning and 174.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-08-22 18:59:39,270 INFO L168 Benchmark]: RCFGBuilder took 1168.94 ms. Allocated memory is still 202.9 MB. Free memory was 174.7 MB in the beginning and 104.6 MB in the end (delta: 70.2 MB). Peak memory consumption was 70.2 MB. Max. memory is 7.1 GB. [2020-08-22 18:59:39,273 INFO L168 Benchmark]: TraceAbstraction took 2228.31 ms. Allocated memory was 202.9 MB in the beginning and 249.0 MB in the end (delta: 46.1 MB). Free memory was 104.6 MB in the beginning and 120.7 MB in the end (delta: -16.1 MB). Peak memory consumption was 30.0 MB. Max. memory is 7.1 GB. [2020-08-22 18:59:39,280 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 138.4 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 662.36 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 101.6 MB in the beginning and 177.4 MB in the end (delta: -75.9 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 64.97 ms. Allocated memory is still 202.9 MB. Free memory was 177.4 MB in the beginning and 174.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1168.94 ms. Allocated memory is still 202.9 MB. Free memory was 174.7 MB in the beginning and 104.6 MB in the end (delta: 70.2 MB). Peak memory consumption was 70.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2228.31 ms. Allocated memory was 202.9 MB in the beginning and 249.0 MB in the end (delta: 46.1 MB). Free memory was 104.6 MB in the beginning and 120.7 MB in the end (delta: -16.1 MB). Peak memory consumption was 30.0 MB. 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, 424 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1191 SDtfs, 1541 SDslu, 1302 SDs, 0 SdLazy, 218 SolverSat, 50 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=740occurred in iteration=2, 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, 2 MinimizatonAttempts, 18 StatesRemovedByMinimization, 2 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...