/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/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_2.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 06:00:39,695 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 06:00:39,697 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 06:00:39,710 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-24 06:00:39,751 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-24 06:00:39,767 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 06:00:39,767 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 06:00:39,768 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 06:00:39,768 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 06:00:39,768 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 06:00:39,769 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 06:00:39,769 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 06:00:39,769 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 06:00:39,769 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 06:00:39,769 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 06:00:39,770 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 06:00:39,770 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 06:00:39,770 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 06:00:39,770 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 06:00:39,770 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 06:00:39,771 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 06:00:39,771 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 06:00:39,772 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 06:00:39,772 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 06:00:39,772 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 06:00:39,772 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 06:00:39,773 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 06:00:39,773 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 06:00:39,773 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 06:00:39,773 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 06:00:39,773 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 06:00:39,774 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 06:00:39,774 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 06:00:39,774 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 06:00:39,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 06:00:39,775 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 06:00:39,775 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 06:00:39,775 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 06:00:39,775 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 06:00:39,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 06:00:39,776 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 06:00:39,776 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 06:00:39,776 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 06:00:40,053 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 06:00:40,065 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 06:00:40,069 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 06:00:40,070 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 06:00:40,071 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 06:00:40,071 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_2.cil-1.c [2019-11-24 06:00:40,137 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dfcedb10/8985d01871fb41dea62f963262017c09/FLAG44108b6b2 [2019-11-24 06:00:40,651 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 06:00:40,652 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ssh-simplified/s3_clnt_2.cil-1.c [2019-11-24 06:00:40,661 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dfcedb10/8985d01871fb41dea62f963262017c09/FLAG44108b6b2 [2019-11-24 06:00:40,950 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dfcedb10/8985d01871fb41dea62f963262017c09 [2019-11-24 06:00:40,959 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 06:00:40,961 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 06:00:40,962 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 06:00:40,962 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 06:00:40,965 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 06:00:40,966 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 06:00:40" (1/1) ... [2019-11-24 06:00:40,969 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71770d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:00:40, skipping insertion in model container [2019-11-24 06:00:40,969 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 06:00:40" (1/1) ... [2019-11-24 06:00:40,975 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 06:00:41,034 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 06:00:41,274 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 06:00:41,279 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 06:00:41,444 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 06:00:41,458 INFO L208 MainTranslator]: Completed translation [2019-11-24 06:00:41,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:00:41 WrapperNode [2019-11-24 06:00:41,459 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 06:00:41,460 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 06:00:41,460 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 06:00:41,460 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 06:00:41,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:00:41" (1/1) ... [2019-11-24 06:00:41,483 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:00:41" (1/1) ... [2019-11-24 06:00:41,530 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 06:00:41,530 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 06:00:41,530 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 06:00:41,530 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 06:00:41,540 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:00:41" (1/1) ... [2019-11-24 06:00:41,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:00:41" (1/1) ... [2019-11-24 06:00:41,544 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:00:41" (1/1) ... [2019-11-24 06:00:41,544 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:00:41" (1/1) ... [2019-11-24 06:00:41,552 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:00:41" (1/1) ... [2019-11-24 06:00:41,560 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:00:41" (1/1) ... [2019-11-24 06:00:41,564 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:00:41" (1/1) ... [2019-11-24 06:00:41,571 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 06:00:41,572 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 06:00:41,572 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 06:00:41,572 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 06:00:41,573 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:00:41" (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 [2019-11-24 06:00:41,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 06:00:41,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 06:00:41,795 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-24 06:00:42,400 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2019-11-24 06:00:42,401 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2019-11-24 06:00:42,756 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 06:00:42,756 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-24 06:00:42,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:00:42 BoogieIcfgContainer [2019-11-24 06:00:42,758 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 06:00:42,759 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 06:00:42,759 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 06:00:42,762 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 06:00:42,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 06:00:40" (1/3) ... [2019-11-24 06:00:42,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e7754b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 06:00:42, skipping insertion in model container [2019-11-24 06:00:42,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:00:41" (2/3) ... [2019-11-24 06:00:42,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e7754b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 06:00:42, skipping insertion in model container [2019-11-24 06:00:42,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:00:42" (3/3) ... [2019-11-24 06:00:42,766 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_2.cil-1.c [2019-11-24 06:00:42,776 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 06:00:42,784 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-24 06:00:42,795 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-24 06:00:42,822 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 06:00:42,822 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 06:00:42,823 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 06:00:42,823 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 06:00:42,823 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 06:00:42,823 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 06:00:42,823 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 06:00:42,823 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 06:00:42,841 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states. [2019-11-24 06:00:42,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-24 06:00:42,847 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 06:00:42,848 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 06:00:42,848 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 06:00:42,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 06:00:42,854 INFO L82 PathProgramCache]: Analyzing trace with hash -1021676193, now seen corresponding path program 1 times [2019-11-24 06:00:42,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 06:00:42,863 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792464875] [2019-11-24 06:00:42,863 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 06:00:42,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 06:00:43,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 06:00:43,049 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792464875] [2019-11-24 06:00:43,050 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 06:00:43,051 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-24 06:00:43,052 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491581873] [2019-11-24 06:00:43,058 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 06:00:43,058 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 06:00:43,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 06:00:43,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 06:00:43,076 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 3 states. [2019-11-24 06:00:43,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 06:00:43,275 INFO L93 Difference]: Finished difference Result 171 states and 295 transitions. [2019-11-24 06:00:43,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 06:00:43,278 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-11-24 06:00:43,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 06:00:43,297 INFO L225 Difference]: With dead ends: 171 [2019-11-24 06:00:43,297 INFO L226 Difference]: Without dead ends: 84 [2019-11-24 06:00:43,307 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 06:00:43,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2019-11-24 06:00:43,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2019-11-24 06:00:43,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2019-11-24 06:00:43,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 121 transitions. [2019-11-24 06:00:43,393 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 121 transitions. Word has length 19 [2019-11-24 06:00:43,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 06:00:43,395 INFO L462 AbstractCegarLoop]: Abstraction has 84 states and 121 transitions. [2019-11-24 06:00:43,395 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 06:00:43,396 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 121 transitions. [2019-11-24 06:00:43,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-24 06:00:43,397 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 06:00:43,397 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 06:00:43,398 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 06:00:43,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 06:00:43,398 INFO L82 PathProgramCache]: Analyzing trace with hash -399271212, now seen corresponding path program 1 times [2019-11-24 06:00:43,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 06:00:43,399 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410952941] [2019-11-24 06:00:43,399 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 06:00:43,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 06:00:43,539 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 06:00:43,539 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410952941] [2019-11-24 06:00:43,539 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 06:00:43,540 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 06:00:43,540 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492338833] [2019-11-24 06:00:43,542 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 06:00:43,542 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 06:00:43,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 06:00:43,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 06:00:43,543 INFO L87 Difference]: Start difference. First operand 84 states and 121 transitions. Second operand 3 states. [2019-11-24 06:00:43,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 06:00:43,715 INFO L93 Difference]: Finished difference Result 180 states and 263 transitions. [2019-11-24 06:00:43,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 06:00:43,716 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2019-11-24 06:00:43,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 06:00:43,719 INFO L225 Difference]: With dead ends: 180 [2019-11-24 06:00:43,719 INFO L226 Difference]: Without dead ends: 99 [2019-11-24 06:00:43,720 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 06:00:43,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2019-11-24 06:00:43,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2019-11-24 06:00:43,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2019-11-24 06:00:43,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 137 transitions. [2019-11-24 06:00:43,738 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 137 transitions. Word has length 28 [2019-11-24 06:00:43,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 06:00:43,738 INFO L462 AbstractCegarLoop]: Abstraction has 97 states and 137 transitions. [2019-11-24 06:00:43,738 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 06:00:43,738 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 137 transitions. [2019-11-24 06:00:43,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-24 06:00:43,741 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 06:00:43,741 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 06:00:43,742 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 06:00:43,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 06:00:43,743 INFO L82 PathProgramCache]: Analyzing trace with hash -1642759980, now seen corresponding path program 1 times [2019-11-24 06:00:43,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 06:00:43,744 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441904885] [2019-11-24 06:00:43,744 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 06:00:43,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 06:00:43,814 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-24 06:00:43,814 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441904885] [2019-11-24 06:00:43,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 06:00:43,816 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 06:00:43,816 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734968052] [2019-11-24 06:00:43,817 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 06:00:43,817 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 06:00:43,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 06:00:43,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 06:00:43,818 INFO L87 Difference]: Start difference. First operand 97 states and 137 transitions. Second operand 3 states. [2019-11-24 06:00:43,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 06:00:43,964 INFO L93 Difference]: Finished difference Result 208 states and 299 transitions. [2019-11-24 06:00:43,965 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 06:00:43,965 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 39 [2019-11-24 06:00:43,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 06:00:43,967 INFO L225 Difference]: With dead ends: 208 [2019-11-24 06:00:43,967 INFO L226 Difference]: Without dead ends: 114 [2019-11-24 06:00:43,968 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 06:00:43,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2019-11-24 06:00:43,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 112. [2019-11-24 06:00:43,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2019-11-24 06:00:43,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 155 transitions. [2019-11-24 06:00:43,979 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 155 transitions. Word has length 39 [2019-11-24 06:00:43,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 06:00:43,980 INFO L462 AbstractCegarLoop]: Abstraction has 112 states and 155 transitions. [2019-11-24 06:00:43,980 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 06:00:43,980 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 155 transitions. [2019-11-24 06:00:43,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-11-24 06:00:43,982 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 06:00:43,982 INFO L410 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 06:00:43,983 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 06:00:43,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 06:00:43,983 INFO L82 PathProgramCache]: Analyzing trace with hash 468908958, now seen corresponding path program 1 times [2019-11-24 06:00:43,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 06:00:43,984 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458682730] [2019-11-24 06:00:43,984 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 06:00:44,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 06:00:44,117 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-24 06:00:44,118 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458682730] [2019-11-24 06:00:44,118 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1505410240] [2019-11-24 06:00:44,118 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-24 06:00:44,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 06:00:44,211 INFO L255 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-24 06:00:44,224 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-24 06:00:44,315 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-11-24 06:00:44,315 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-24 06:00:44,348 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-11-24 06:00:44,348 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-24 06:00:44,349 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [4] total 9 [2019-11-24 06:00:44,349 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643216796] [2019-11-24 06:00:44,350 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-24 06:00:44,350 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 06:00:44,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-24 06:00:44,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-11-24 06:00:44,350 INFO L87 Difference]: Start difference. First operand 112 states and 155 transitions. Second operand 6 states. [2019-11-24 06:00:44,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 06:00:44,723 INFO L93 Difference]: Finished difference Result 315 states and 470 transitions. [2019-11-24 06:00:44,724 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-24 06:00:44,724 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2019-11-24 06:00:44,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 06:00:44,726 INFO L225 Difference]: With dead ends: 315 [2019-11-24 06:00:44,726 INFO L226 Difference]: Without dead ends: 205 [2019-11-24 06:00:44,728 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-11-24 06:00:44,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2019-11-24 06:00:44,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 187. [2019-11-24 06:00:44,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2019-11-24 06:00:44,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 256 transitions. [2019-11-24 06:00:44,742 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 256 transitions. Word has length 52 [2019-11-24 06:00:44,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 06:00:44,743 INFO L462 AbstractCegarLoop]: Abstraction has 187 states and 256 transitions. [2019-11-24 06:00:44,743 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-24 06:00:44,743 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 256 transitions. [2019-11-24 06:00:44,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-11-24 06:00:44,745 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 06:00:44,746 INFO L410 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 06:00:44,951 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-24 06:00:44,952 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 06:00:44,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 06:00:44,953 INFO L82 PathProgramCache]: Analyzing trace with hash -897590247, now seen corresponding path program 1 times [2019-11-24 06:00:44,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 06:00:44,954 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549396792] [2019-11-24 06:00:44,954 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 06:00:44,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 06:00:45,058 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-11-24 06:00:45,059 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549396792] [2019-11-24 06:00:45,059 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 06:00:45,059 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 06:00:45,060 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307534539] [2019-11-24 06:00:45,061 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 06:00:45,062 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 06:00:45,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 06:00:45,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 06:00:45,062 INFO L87 Difference]: Start difference. First operand 187 states and 256 transitions. Second operand 3 states. [2019-11-24 06:00:45,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 06:00:45,201 INFO L93 Difference]: Finished difference Result 392 states and 545 transitions. [2019-11-24 06:00:45,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 06:00:45,201 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2019-11-24 06:00:45,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 06:00:45,203 INFO L225 Difference]: With dead ends: 392 [2019-11-24 06:00:45,203 INFO L226 Difference]: Without dead ends: 208 [2019-11-24 06:00:45,205 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 06:00:45,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2019-11-24 06:00:45,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 206. [2019-11-24 06:00:45,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2019-11-24 06:00:45,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 278 transitions. [2019-11-24 06:00:45,217 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 278 transitions. Word has length 68 [2019-11-24 06:00:45,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 06:00:45,217 INFO L462 AbstractCegarLoop]: Abstraction has 206 states and 278 transitions. [2019-11-24 06:00:45,218 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 06:00:45,218 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 278 transitions. [2019-11-24 06:00:45,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-11-24 06:00:45,221 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 06:00:45,221 INFO L410 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 06:00:45,221 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 06:00:45,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 06:00:45,222 INFO L82 PathProgramCache]: Analyzing trace with hash 1429698848, now seen corresponding path program 1 times [2019-11-24 06:00:45,222 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 06:00:45,222 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130215412] [2019-11-24 06:00:45,222 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 06:00:45,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 06:00:45,361 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-11-24 06:00:45,362 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130215412] [2019-11-24 06:00:45,362 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2102314201] [2019-11-24 06:00:45,362 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-24 06:00:45,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 06:00:45,439 INFO L255 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-24 06:00:45,443 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-24 06:00:45,470 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2019-11-24 06:00:45,471 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-24 06:00:45,497 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:00:45,509 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 06:00:45,538 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 33 proven. 50 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-11-24 06:00:45,538 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1164371530] [2019-11-24 06:00:45,565 INFO L159 IcfgInterpreter]: Started Sifa with 37 locations of interest [2019-11-24 06:00:45,566 INFO L166 IcfgInterpreter]: Building call graph [2019-11-24 06:00:45,572 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-24 06:00:45,579 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-24 06:00:45,580 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-24 06:00:45,903 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2019-11-24 06:00:46,017 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2019-11-24 06:00:46,120 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2019-11-24 06:00:46,269 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2019-11-24 06:00:46,571 WARN L192 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 235 [2019-11-24 06:00:46,935 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2019-11-24 06:00:47,147 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2019-11-24 06:00:47,305 WARN L192 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 244 [2019-11-24 06:00:47,423 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 244 [2019-11-24 06:00:47,535 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2019-11-24 06:00:47,763 WARN L192 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2019-11-24 06:00:48,041 WARN L192 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 256 [2019-11-24 06:00:48,219 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 277 DAG size of output: 260 [2019-11-24 06:00:48,509 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 260 [2019-11-24 06:00:48,614 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 260 [2019-11-24 06:00:48,735 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 260 [2019-11-24 06:00:48,841 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 260 [2019-11-24 06:00:49,842 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 285 DAG size of output: 272 [2019-11-24 06:00:50,070 WARN L192 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 287 DAG size of output: 287 [2019-11-24 06:00:50,881 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 277 [2019-11-24 06:00:51,486 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 274 DAG size of output: 274 [2019-11-24 06:00:51,848 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 269 [2019-11-24 06:00:51,952 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 269 [2019-11-24 06:00:52,350 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 269 [2019-11-24 06:00:52,477 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 315 [2019-11-24 06:00:52,586 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 315 [2019-11-24 06:00:52,696 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 315 [2019-11-24 06:00:52,806 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 315 [2019-11-24 06:00:52,971 WARN L192 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 315 [2019-11-24 06:00:53,084 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 315 [2019-11-24 06:00:53,253 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 321 DAG size of output: 321 [2019-11-24 06:00:53,412 WARN L192 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 321 DAG size of output: 321 [2019-11-24 06:00:53,536 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 321 [2019-11-24 06:00:53,677 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 276 [2019-11-24 06:00:54,165 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 276 [2019-11-24 06:00:54,368 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 276 [2019-11-24 06:00:54,940 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-24 06:00:59,505 WARN L192 SmtUtils]: Spent 4.47 s on a formula simplification. DAG size of input: 319 DAG size of output: 231 [2019-11-24 06:01:04,052 WARN L192 SmtUtils]: Spent 4.46 s on a formula simplification. DAG size of input: 274 DAG size of output: 241 [2019-11-24 06:01:04,776 WARN L192 SmtUtils]: Spent 671.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 150 [2019-11-24 06:01:05,543 WARN L192 SmtUtils]: Spent 701.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 156 [2019-11-24 06:01:06,313 WARN L192 SmtUtils]: Spent 700.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 157 [2019-11-24 06:01:07,231 WARN L192 SmtUtils]: Spent 740.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 159 [2019-11-24 06:01:11,458 WARN L192 SmtUtils]: Spent 4.09 s on a formula simplification. DAG size of input: 313 DAG size of output: 230 [2019-11-24 06:01:15,727 WARN L192 SmtUtils]: Spent 4.11 s on a formula simplification. DAG size of input: 314 DAG size of output: 231 [2019-11-24 06:01:19,620 WARN L192 SmtUtils]: Spent 3.73 s on a formula simplification. DAG size of input: 277 DAG size of output: 227 [2019-11-24 06:01:21,931 WARN L192 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 288 DAG size of output: 178 [2019-11-24 06:01:23,467 WARN L192 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 277 DAG size of output: 179 [2019-11-24 06:01:27,963 WARN L192 SmtUtils]: Spent 3.61 s on a formula simplification. DAG size of input: 289 DAG size of output: 218 [2019-11-24 06:01:29,847 WARN L192 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 292 DAG size of output: 178 [2019-11-24 06:01:31,482 WARN L192 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 283 DAG size of output: 180 [2019-11-24 06:01:37,279 WARN L192 SmtUtils]: Spent 4.67 s on a formula simplification. DAG size of input: 293 DAG size of output: 213 [2019-11-24 06:01:38,866 WARN L192 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 255 DAG size of output: 171 [2019-11-24 06:01:40,238 WARN L192 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 257 DAG size of output: 173 [2019-11-24 06:01:41,620 WARN L192 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 263 DAG size of output: 179 [2019-11-24 06:01:47,716 WARN L192 SmtUtils]: Spent 4.68 s on a formula simplification. DAG size of input: 297 DAG size of output: 209 [2019-11-24 06:01:49,804 WARN L192 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 300 DAG size of output: 184 [2019-11-24 06:01:51,623 WARN L192 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 298 DAG size of output: 187 [2019-11-24 06:01:53,153 WARN L192 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 241 DAG size of output: 181 [2019-11-24 06:01:58,702 WARN L192 SmtUtils]: Spent 3.72 s on a formula simplification. DAG size of input: 301 DAG size of output: 205 [2019-11-24 06:02:00,940 WARN L192 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 304 DAG size of output: 186 [2019-11-24 06:02:02,826 WARN L192 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 299 DAG size of output: 189 [2019-11-24 06:02:02,830 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-11-24 06:02:02,830 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [5, 4, 4] total 33 [2019-11-24 06:02:02,831 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873699582] [2019-11-24 06:02:02,836 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2019-11-24 06:02:02,836 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 06:02:02,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2019-11-24 06:02:02,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=250, Invalid=872, Unknown=0, NotChecked=0, Total=1122 [2019-11-24 06:02:02,837 INFO L87 Difference]: Start difference. First operand 206 states and 278 transitions. Second operand 27 states. [2019-11-24 06:02:06,556 WARN L192 SmtUtils]: Spent 2.58 s on a formula simplification. DAG size of input: 260 DAG size of output: 225 [2019-11-24 06:02:10,635 WARN L192 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 265 DAG size of output: 184 [2019-11-24 06:02:12,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 06:02:12,990 INFO L93 Difference]: Finished difference Result 517 states and 686 transitions. [2019-11-24 06:02:12,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-11-24 06:02:12,991 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 86 [2019-11-24 06:02:12,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 06:02:12,994 INFO L225 Difference]: With dead ends: 517 [2019-11-24 06:02:12,995 INFO L226 Difference]: Without dead ends: 314 [2019-11-24 06:02:12,996 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 197 SyntacticMatches, 32 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1016 ImplicationChecksByTransitivity, 72.2s TimeCoverageRelationStatistics Valid=271, Invalid=989, Unknown=0, NotChecked=0, Total=1260 [2019-11-24 06:02:12,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2019-11-24 06:02:13,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 289. [2019-11-24 06:02:13,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 289 states. [2019-11-24 06:02:13,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 365 transitions. [2019-11-24 06:02:13,027 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 365 transitions. Word has length 86 [2019-11-24 06:02:13,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 06:02:13,027 INFO L462 AbstractCegarLoop]: Abstraction has 289 states and 365 transitions. [2019-11-24 06:02:13,027 INFO L463 AbstractCegarLoop]: Interpolant automaton has 27 states. [2019-11-24 06:02:13,027 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 365 transitions. [2019-11-24 06:02:13,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-11-24 06:02:13,031 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 06:02:13,031 INFO L410 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 06:02:13,232 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-24 06:02:13,232 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 06:02:13,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 06:02:13,232 INFO L82 PathProgramCache]: Analyzing trace with hash -1930219691, now seen corresponding path program 1 times [2019-11-24 06:02:13,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 06:02:13,233 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474792392] [2019-11-24 06:02:13,233 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 06:02:13,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-24 06:02:13,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-24 06:02:13,343 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-11-24 06:02:13,343 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-24 06:02:13,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 06:02:13 BoogieIcfgContainer [2019-11-24 06:02:13,410 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-24 06:02:13,416 INFO L168 Benchmark]: Toolchain (without parser) took 92451.00 ms. Allocated memory was 140.0 MB in the beginning and 710.9 MB in the end (delta: 570.9 MB). Free memory was 101.0 MB in the beginning and 642.7 MB in the end (delta: -541.7 MB). Peak memory consumption was 29.3 MB. Max. memory is 7.1 GB. [2019-11-24 06:02:13,419 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 140.0 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-24 06:02:13,420 INFO L168 Benchmark]: CACSL2BoogieTranslator took 497.97 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 100.8 MB in the beginning and 179.0 MB in the end (delta: -78.3 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2019-11-24 06:02:13,421 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.92 ms. Allocated memory is still 203.4 MB. Free memory was 179.0 MB in the beginning and 175.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. [2019-11-24 06:02:13,421 INFO L168 Benchmark]: Boogie Preprocessor took 41.60 ms. Allocated memory is still 203.4 MB. Free memory was 175.7 MB in the beginning and 173.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-11-24 06:02:13,428 INFO L168 Benchmark]: RCFGBuilder took 1185.72 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 173.7 MB in the beginning and 204.2 MB in the end (delta: -30.5 MB). Peak memory consumption was 89.4 MB. Max. memory is 7.1 GB. [2019-11-24 06:02:13,429 INFO L168 Benchmark]: TraceAbstraction took 90651.01 ms. Allocated memory was 236.5 MB in the beginning and 710.9 MB in the end (delta: 474.5 MB). Free memory was 204.2 MB in the beginning and 642.7 MB in the end (delta: -438.5 MB). Peak memory consumption was 36.0 MB. Max. memory is 7.1 GB. [2019-11-24 06:02:13,432 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 140.0 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 497.97 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 100.8 MB in the beginning and 179.0 MB in the end (delta: -78.3 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 69.92 ms. Allocated memory is still 203.4 MB. Free memory was 179.0 MB in the beginning and 175.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 41.60 ms. Allocated memory is still 203.4 MB. Free memory was 175.7 MB in the beginning and 173.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1185.72 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 173.7 MB in the beginning and 204.2 MB in the end (delta: -30.5 MB). Peak memory consumption was 89.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 90651.01 ms. Allocated memory was 236.5 MB in the beginning and 710.9 MB in the end (delta: 474.5 MB). Free memory was 204.2 MB in the beginning and 642.7 MB in the end (delta: -438.5 MB). Peak memory consumption was 36.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 548]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L553] int s ; [L557] s = 12292 [L11] int s__info_callback = __VERIFIER_nondet_int() ; [L12] int s__in_handshake = __VERIFIER_nondet_int() ; [L13] int s__state ; [L14] int s__new_session ; [L15] int s__server ; [L16] int s__version = __VERIFIER_nondet_int() ; [L17] int s__type ; [L18] int s__init_num ; [L19] int s__bbio = __VERIFIER_nondet_int() ; [L20] int s__wbio = __VERIFIER_nondet_int() ; [L21] int s__hit = __VERIFIER_nondet_int() ; [L22] int s__rwstate ; [L23] int s__init_buf___0 = 1; [L24] int s__debug = __VERIFIER_nondet_int() ; [L25] int s__shutdown ; [L26] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L27] int s__ctx__stats__sess_connect_renegotiate = __VERIFIER_nondet_int() ; [L28] int s__ctx__stats__sess_connect = __VERIFIER_nondet_int() ; [L29] int s__ctx__stats__sess_hit = __VERIFIER_nondet_int() ; [L30] int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_int() ; [L31] int s__s3__change_cipher_spec ; [L32] int s__s3__flags ; [L33] int s__s3__delay_buf_pop_ret ; [L34] int s__s3__tmp__cert_req = __VERIFIER_nondet_int() ; [L35] int s__s3__tmp__new_compression = __VERIFIER_nondet_int() ; [L36] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int() ; [L37] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L38] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() ; [L39] int s__s3__tmp__next_state___0 ; [L40] int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int() ; [L41] int s__session__cipher ; [L42] int s__session__compress_meth ; [L43] int buf ; [L44] unsigned long tmp ; [L45] unsigned long l ; [L46] int num1 ; [L47] int cb ; [L48] int ret ; [L49] int new_state ; [L50] int state ; [L51] int skip ; [L52] int tmp___0 ; [L53] int tmp___1 = __VERIFIER_nondet_int() ; [L54] int tmp___2 = __VERIFIER_nondet_int() ; [L55] int tmp___3 = __VERIFIER_nondet_int() ; [L56] int tmp___4 = __VERIFIER_nondet_int() ; [L57] int tmp___5 = __VERIFIER_nondet_int() ; [L58] int tmp___6 = __VERIFIER_nondet_int() ; [L59] int tmp___7 = __VERIFIER_nondet_int() ; [L60] int tmp___8 = __VERIFIER_nondet_int() ; [L61] int tmp___9 = __VERIFIER_nondet_int() ; [L62] int blastFlag ; [L63] int __cil_tmp55 ; [L64] unsigned long __cil_tmp56 ; [L65] long __cil_tmp57 ; [L66] long __cil_tmp58 ; [L67] long __cil_tmp59 ; [L68] long __cil_tmp60 ; [L69] long __cil_tmp61 ; [L70] long __cil_tmp62 ; [L71] long __cil_tmp63 ; [L72] long __cil_tmp64 ; [L73] long __cil_tmp65 ; [L77] s__state = initial_state [L78] blastFlag = 0 [L79] tmp = __VERIFIER_nondet_int() [L80] cb = 0 [L81] ret = -1 [L82] skip = 0 [L83] tmp___0 = 0 [L84] COND TRUE s__info_callback != 0 [L85] cb = s__info_callback [L91] s__in_handshake ++ [L92] COND FALSE !(tmp___1 - 12288) [L98] COND TRUE 1 [L100] state = s__state [L101] COND TRUE s__state == 12292 [L203] s__new_session = 1 [L204] s__state = 4096 [L205] s__ctx__stats__sess_connect_renegotiate ++ [L210] s__server = 0 [L211] COND TRUE cb != 0 [L215] __cil_tmp55 = s__version - 65280 [L216] COND FALSE !(__cil_tmp55 != 768) [L221] s__type = 4096 [L222] COND FALSE !(s__init_buf___0 == 0) [L234] COND FALSE !(! tmp___4) [L238] COND FALSE !(! tmp___5) [L242] s__state = 4368 [L243] s__ctx__stats__sess_connect ++ [L244] s__init_num = 0 [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND TRUE s__state == 4368 [L248] s__shutdown = 0 [L249] ret = __VERIFIER_nondet_int() [L250] COND TRUE blastFlag == 0 [L251] blastFlag = 1 [L257] COND FALSE !(ret <= 0) [L260] s__state = 4384 [L261] s__init_num = 0 [L262] COND TRUE s__bbio != s__wbio [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND TRUE s__state == 4384 [L268] ret = __VERIFIER_nondet_int() [L269] COND TRUE blastFlag == 1 [L270] blastFlag = 2 [L272] COND FALSE !(ret <= 0) [L275] COND FALSE !(\read(s__hit)) [L278] s__state = 4400 [L280] s__init_num = 0 [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND FALSE !(s__state == 4384) [L125] COND FALSE !(s__state == 4385) [L128] COND TRUE s__state == 4400 [L285] __cil_tmp56 = (unsigned long )s__s3__tmp__new_cipher__algorithms [L286] COND FALSE !(__cil_tmp56 - 256UL) [L289] ret = __VERIFIER_nondet_int() [L290] COND TRUE blastFlag == 2 [L291] blastFlag = 3 [L293] COND FALSE !(ret <= 0) [L298] s__state = 4416 [L299] s__init_num = 0 [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND FALSE !(s__state == 4384) [L125] COND FALSE !(s__state == 4385) [L128] COND FALSE !(s__state == 4400) [L131] COND FALSE !(s__state == 4401) [L134] COND TRUE s__state == 4416 [L303] ret = __VERIFIER_nondet_int() [L304] COND TRUE blastFlag == 3 [L305] blastFlag = 4 [L307] COND FALSE !(ret <= 0) [L310] s__state = 4432 [L311] s__init_num = 0 [L312] COND FALSE !(! tmp___6) [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND FALSE !(s__state == 4384) [L125] COND FALSE !(s__state == 4385) [L128] COND FALSE !(s__state == 4400) [L131] COND FALSE !(s__state == 4401) [L134] COND FALSE !(s__state == 4416) [L137] COND FALSE !(s__state == 4417) [L140] COND TRUE s__state == 4432 [L319] ret = __VERIFIER_nondet_int() [L320] COND TRUE blastFlag == 4 [L548] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 85 locations, 1 error locations. Result: UNSAFE, OverallTime: 90.5s, OverallIterations: 7, TraceHistogramMax: 6, AutomataDifference: 11.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 686 SDtfs, 435 SDslu, 319 SDs, 0 SdLazy, 2239 SolverSat, 163 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 380 GetRequests, 303 SyntacticMatches, 32 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1023 ImplicationChecksByTransitivity, 72.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=289occurred in iteration=6, 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, 6 MinimizatonAttempts, 49 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 517 NumberOfCodeBlocks, 517 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 558 ConstructedInterpolants, 0 QuantifiedInterpolants, 125055 SizeOfPredicates, 4 NumberOfNonLiveVariables, 410 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 285/550 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: OVERALL_TIME[ms]: 9376, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 59, DAG_INTERPRETER_EARLY_EXITS: 3, TOOLS_POST_APPLICATIONS: 273, TOOLS_POST_TIME[ms]: 433, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME[ms]: 0, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_APPLICATIONS: 256, TOOLS_QUANTIFIERELIM_TIME[ms]: 311, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 13, FLUID_QUERY_TIME[ms]: 17, FLUID_QUERIES: 329, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 28, DOMAIN_JOIN_TIME[ms]: 6890, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 4, DOMAIN_WIDEN_TIME[ms]: 1469, DOMAIN_ISSUBSETEQ_APPLICATIONS: 8, DOMAIN_ISSUBSETEQ_TIME[ms]: 79, DOMAIN_ISBOTTOM_APPLICATIONS: 59, DOMAIN_ISBOTTOM_TIME[ms]: 331, LOOP_SUMMARIZER_APPLICATIONS: 4, LOOP_SUMMARIZER_CACHE_MISSES: 4, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 6588, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 6587, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 8, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME[ms]: 0, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 3, PATH_EXPR_TIME[ms]: 5, REGEX_TO_DAG_TIME[ms]: 7, DAG_COMPRESSION_TIME[ms]: 85, DAG_COMPRESSION_PROCESSED_NODES: 4364, DAG_COMPRESSION_RETAINED_NODES: 170, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...