/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_clnt_4.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 13:21:05,371 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 13:21:05,375 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 13:21:05,394 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 13:21:05,394 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 13:21:05,396 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 13:21:05,398 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 13:21:05,411 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 13:21:05,413 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 13:21:05,414 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 13:21:05,417 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 13:21:05,419 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 13:21:05,419 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 13:21:05,423 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 13:21:05,425 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 13:21:05,427 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 13:21:05,429 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 13:21:05,432 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 13:21:05,434 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 13:21:05,439 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 13:21:05,441 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 13:21:05,443 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 13:21:05,445 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 13:21:05,445 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 13:21:05,448 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-07 13:21:05,464 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 13:21:05,465 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 13:21:05,466 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 13:21:05,467 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 13:21:05,480 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 13:21:05,480 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 13:21:05,482 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 13:21:05,483 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 13:21:05,483 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 13:21:05,483 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 13:21:05,483 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 13:21:05,484 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 13:21:05,484 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 13:21:05,484 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 13:21:05,485 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 13:21:05,485 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 13:21:05,486 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 13:21:05,486 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 13:21:05,486 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 13:21:05,486 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 13:21:05,487 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 13:21:05,487 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 13:21:05,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 13:21:05,487 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 13:21:05,487 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 13:21:05,488 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 13:21:05,488 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 13:21:05,761 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 13:21:05,780 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 13:21:05,783 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 13:21:05,785 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 13:21:05,785 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 13:21:05,786 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_4.cil-2.c [2020-07-07 13:21:05,866 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b2f04a13/22511ed46ed446bdb4c2cea6b08f4d77/FLAG9b92ff738 [2020-07-07 13:21:06,400 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 13:21:06,401 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ssh-simplified/s3_clnt_4.cil-2.c [2020-07-07 13:21:06,423 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b2f04a13/22511ed46ed446bdb4c2cea6b08f4d77/FLAG9b92ff738 [2020-07-07 13:21:06,689 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b2f04a13/22511ed46ed446bdb4c2cea6b08f4d77 [2020-07-07 13:21:06,699 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 13:21:06,702 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 13:21:06,703 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 13:21:06,703 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 13:21:06,706 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 13:21:06,708 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:21:06" (1/1) ... [2020-07-07 13:21:06,710 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@783f0603 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:21:06, skipping insertion in model container [2020-07-07 13:21:06,711 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:21:06" (1/1) ... [2020-07-07 13:21:06,718 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 13:21:06,761 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 13:21:06,996 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:21:07,001 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 13:21:07,192 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:21:07,204 INFO L208 MainTranslator]: Completed translation [2020-07-07 13:21:07,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:21:07 WrapperNode [2020-07-07 13:21:07,205 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 13:21:07,206 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 13:21:07,206 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 13:21:07,206 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 13:21:07,217 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:21:07" (1/1) ... [2020-07-07 13:21:07,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:21:07" (1/1) ... [2020-07-07 13:21:07,226 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:21:07" (1/1) ... [2020-07-07 13:21:07,226 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:21:07" (1/1) ... [2020-07-07 13:21:07,238 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:21:07" (1/1) ... [2020-07-07 13:21:07,251 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:21:07" (1/1) ... [2020-07-07 13:21:07,255 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:21:07" (1/1) ... [2020-07-07 13:21:07,259 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 13:21:07,259 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 13:21:07,260 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 13:21:07,260 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 13:21:07,261 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:21:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 13:21:07,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 13:21:07,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 13:21:07,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-07-07 13:21:07,322 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 13:21:07,322 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 13:21:07,322 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-07-07 13:21:07,323 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 13:21:07,323 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-07-07 13:21:07,323 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-07-07 13:21:07,323 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 13:21:07,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 13:21:07,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 13:21:07,486 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-07 13:21:08,120 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-07-07 13:21:08,121 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-07-07 13:21:08,144 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 13:21:08,144 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-07 13:21:08,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:21:08 BoogieIcfgContainer [2020-07-07 13:21:08,152 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 13:21:08,153 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 13:21:08,153 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 13:21:08,156 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 13:21:08,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 01:21:06" (1/3) ... [2020-07-07 13:21:08,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@489b9fed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:21:08, skipping insertion in model container [2020-07-07 13:21:08,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:21:07" (2/3) ... [2020-07-07 13:21:08,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@489b9fed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:21:08, skipping insertion in model container [2020-07-07 13:21:08,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:21:08" (3/3) ... [2020-07-07 13:21:08,161 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_4.cil-2.c [2020-07-07 13:21:08,172 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 13:21:08,180 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 13:21:08,195 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 13:21:08,218 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 13:21:08,218 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 13:21:08,219 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 13:21:08,219 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 13:21:08,219 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 13:21:08,219 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 13:21:08,220 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 13:21:08,220 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 13:21:08,242 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states. [2020-07-07 13:21:08,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-07-07 13:21:08,264 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:21:08,266 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:21:08,266 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:21:08,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:21:08,271 INFO L82 PathProgramCache]: Analyzing trace with hash 1739904560, now seen corresponding path program 1 times [2020-07-07 13:21:08,278 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:21:08,278 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [568029650] [2020-07-07 13:21:08,279 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:21:08,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:08,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:08,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:21:08,756 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:21:08,758 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [568029650] [2020-07-07 13:21:08,760 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:21:08,761 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 13:21:08,761 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879223168] [2020-07-07 13:21:08,767 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 13:21:08,768 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:21:08,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 13:21:08,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-07 13:21:08,785 INFO L87 Difference]: Start difference. First operand 391 states. Second operand 6 states. [2020-07-07 13:21:09,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:21:09,257 INFO L93 Difference]: Finished difference Result 695 states and 910 transitions. [2020-07-07 13:21:09,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 13:21:09,259 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 167 [2020-07-07 13:21:09,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:21:09,278 INFO L225 Difference]: With dead ends: 695 [2020-07-07 13:21:09,279 INFO L226 Difference]: Without dead ends: 370 [2020-07-07 13:21:09,285 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 [2020-07-07 13:21:09,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2020-07-07 13:21:09,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 355. [2020-07-07 13:21:09,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2020-07-07 13:21:09,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 414 transitions. [2020-07-07 13:21:09,382 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 414 transitions. Word has length 167 [2020-07-07 13:21:09,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:21:09,384 INFO L479 AbstractCegarLoop]: Abstraction has 355 states and 414 transitions. [2020-07-07 13:21:09,384 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 13:21:09,384 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 414 transitions. [2020-07-07 13:21:09,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-07-07 13:21:09,389 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:21:09,389 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:21:09,390 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 13:21:09,390 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:21:09,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:21:09,391 INFO L82 PathProgramCache]: Analyzing trace with hash 507328089, now seen corresponding path program 1 times [2020-07-07 13:21:09,391 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:21:09,391 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [536414005] [2020-07-07 13:21:09,392 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:21:09,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:09,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:09,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:21:09,652 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:21:09,652 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [536414005] [2020-07-07 13:21:09,653 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:21:09,653 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 13:21:09,653 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59407306] [2020-07-07 13:21:09,654 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 13:21:09,655 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:21:09,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 13:21:09,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-07 13:21:09,655 INFO L87 Difference]: Start difference. First operand 355 states and 414 transitions. Second operand 6 states. [2020-07-07 13:21:10,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:21:10,020 INFO L93 Difference]: Finished difference Result 616 states and 766 transitions. [2020-07-07 13:21:10,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 13:21:10,021 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 186 [2020-07-07 13:21:10,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:21:10,025 INFO L225 Difference]: With dead ends: 616 [2020-07-07 13:21:10,026 INFO L226 Difference]: Without dead ends: 413 [2020-07-07 13:21:10,028 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 [2020-07-07 13:21:10,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2020-07-07 13:21:10,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 368. [2020-07-07 13:21:10,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 368 states. [2020-07-07 13:21:10,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 432 transitions. [2020-07-07 13:21:10,076 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 432 transitions. Word has length 186 [2020-07-07 13:21:10,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:21:10,077 INFO L479 AbstractCegarLoop]: Abstraction has 368 states and 432 transitions. [2020-07-07 13:21:10,077 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 13:21:10,077 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 432 transitions. [2020-07-07 13:21:10,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-07-07 13:21:10,080 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:21:10,081 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:21:10,081 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 13:21:10,081 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:21:10,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:21:10,082 INFO L82 PathProgramCache]: Analyzing trace with hash -5837123, now seen corresponding path program 1 times [2020-07-07 13:21:10,082 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:21:10,083 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1639665250] [2020-07-07 13:21:10,083 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:21:10,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:10,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:10,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:21:10,233 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:21:10,233 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1639665250] [2020-07-07 13:21:10,234 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:21:10,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:21:10,234 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345758439] [2020-07-07 13:21:10,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:21:10,235 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:21:10,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:21:10,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:21:10,237 INFO L87 Difference]: Start difference. First operand 368 states and 432 transitions. Second operand 3 states. [2020-07-07 13:21:10,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:21:10,428 INFO L93 Difference]: Finished difference Result 612 states and 746 transitions. [2020-07-07 13:21:10,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:21:10,430 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2020-07-07 13:21:10,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:21:10,436 INFO L225 Difference]: With dead ends: 612 [2020-07-07 13:21:10,436 INFO L226 Difference]: Without dead ends: 396 [2020-07-07 13:21:10,438 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 [2020-07-07 13:21:10,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2020-07-07 13:21:10,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 386. [2020-07-07 13:21:10,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2020-07-07 13:21:10,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 455 transitions. [2020-07-07 13:21:10,493 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 455 transitions. Word has length 190 [2020-07-07 13:21:10,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:21:10,494 INFO L479 AbstractCegarLoop]: Abstraction has 386 states and 455 transitions. [2020-07-07 13:21:10,494 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:21:10,494 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 455 transitions. [2020-07-07 13:21:10,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-07-07 13:21:10,497 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:21:10,497 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:21:10,497 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 13:21:10,498 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:21:10,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:21:10,498 INFO L82 PathProgramCache]: Analyzing trace with hash 491551320, now seen corresponding path program 1 times [2020-07-07 13:21:10,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:21:10,499 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [101938621] [2020-07-07 13:21:10,499 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:21:10,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:10,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:10,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:21:10,731 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:21:10,732 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [101938621] [2020-07-07 13:21:10,732 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:21:10,732 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:21:10,732 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286852356] [2020-07-07 13:21:10,733 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:21:10,733 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:21:10,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:21:10,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:21:10,734 INFO L87 Difference]: Start difference. First operand 386 states and 455 transitions. Second operand 3 states. [2020-07-07 13:21:10,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:21:10,871 INFO L93 Difference]: Finished difference Result 847 states and 1047 transitions. [2020-07-07 13:21:10,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:21:10,872 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 197 [2020-07-07 13:21:10,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:21:10,877 INFO L225 Difference]: With dead ends: 847 [2020-07-07 13:21:10,877 INFO L226 Difference]: Without dead ends: 613 [2020-07-07 13:21:10,879 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 [2020-07-07 13:21:10,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2020-07-07 13:21:10,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 613. [2020-07-07 13:21:10,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 613 states. [2020-07-07 13:21:10,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 743 transitions. [2020-07-07 13:21:10,969 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 743 transitions. Word has length 197 [2020-07-07 13:21:10,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:21:10,970 INFO L479 AbstractCegarLoop]: Abstraction has 613 states and 743 transitions. [2020-07-07 13:21:10,970 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:21:10,970 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 743 transitions. [2020-07-07 13:21:10,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-07-07 13:21:10,974 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:21:10,974 INFO L422 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:21:10,974 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 13:21:10,975 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:21:10,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:21:10,975 INFO L82 PathProgramCache]: Analyzing trace with hash -525577979, now seen corresponding path program 1 times [2020-07-07 13:21:10,976 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:21:10,976 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [895194201] [2020-07-07 13:21:10,976 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:21:11,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:11,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:11,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:21:11,138 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:21:11,139 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [895194201] [2020-07-07 13:21:11,139 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:21:11,139 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:21:11,140 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413302658] [2020-07-07 13:21:11,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:21:11,140 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:21:11,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:21:11,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:21:11,142 INFO L87 Difference]: Start difference. First operand 613 states and 743 transitions. Second operand 3 states. [2020-07-07 13:21:11,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:21:11,469 INFO L93 Difference]: Finished difference Result 1135 states and 1416 transitions. [2020-07-07 13:21:11,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:21:11,469 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 210 [2020-07-07 13:21:11,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:21:11,475 INFO L225 Difference]: With dead ends: 1135 [2020-07-07 13:21:11,475 INFO L226 Difference]: Without dead ends: 674 [2020-07-07 13:21:11,477 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 [2020-07-07 13:21:11,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2020-07-07 13:21:11,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 653. [2020-07-07 13:21:11,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 653 states. [2020-07-07 13:21:11,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 793 transitions. [2020-07-07 13:21:11,612 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 793 transitions. Word has length 210 [2020-07-07 13:21:11,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:21:11,613 INFO L479 AbstractCegarLoop]: Abstraction has 653 states and 793 transitions. [2020-07-07 13:21:11,613 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:21:11,614 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 793 transitions. [2020-07-07 13:21:11,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-07-07 13:21:11,620 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:21:11,620 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:21:11,620 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 13:21:11,621 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:21:11,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:21:11,621 INFO L82 PathProgramCache]: Analyzing trace with hash 1730770704, now seen corresponding path program 1 times [2020-07-07 13:21:11,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:21:11,622 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1508339236] [2020-07-07 13:21:11,622 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:21:11,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:11,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:11,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:21:11,796 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:21:11,797 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1508339236] [2020-07-07 13:21:11,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:21:11,797 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:21:11,797 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460550588] [2020-07-07 13:21:11,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:21:11,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:21:11,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:21:11,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:21:11,799 INFO L87 Difference]: Start difference. First operand 653 states and 793 transitions. Second operand 3 states. [2020-07-07 13:21:11,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:21:11,970 INFO L93 Difference]: Finished difference Result 1585 states and 1965 transitions. [2020-07-07 13:21:11,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:21:11,971 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 217 [2020-07-07 13:21:11,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:21:11,977 INFO L225 Difference]: With dead ends: 1585 [2020-07-07 13:21:11,977 INFO L226 Difference]: Without dead ends: 1084 [2020-07-07 13:21:11,979 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 [2020-07-07 13:21:11,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1084 states. [2020-07-07 13:21:12,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1084 to 1082. [2020-07-07 13:21:12,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1082 states. [2020-07-07 13:21:12,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 1319 transitions. [2020-07-07 13:21:12,100 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 1319 transitions. Word has length 217 [2020-07-07 13:21:12,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:21:12,100 INFO L479 AbstractCegarLoop]: Abstraction has 1082 states and 1319 transitions. [2020-07-07 13:21:12,101 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:21:12,101 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1319 transitions. [2020-07-07 13:21:12,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-07-07 13:21:12,105 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:21:12,105 INFO L422 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:21:12,105 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-07 13:21:12,105 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:21:12,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:21:12,106 INFO L82 PathProgramCache]: Analyzing trace with hash 1258952316, now seen corresponding path program 1 times [2020-07-07 13:21:12,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:21:12,107 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1013141128] [2020-07-07 13:21:12,107 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:21:12,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:12,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:12,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:21:12,233 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:21:12,233 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1013141128] [2020-07-07 13:21:12,234 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:21:12,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:21:12,234 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561844770] [2020-07-07 13:21:12,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:21:12,235 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:21:12,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:21:12,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:21:12,236 INFO L87 Difference]: Start difference. First operand 1082 states and 1319 transitions. Second operand 3 states. [2020-07-07 13:21:12,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:21:12,394 INFO L93 Difference]: Finished difference Result 2030 states and 2504 transitions. [2020-07-07 13:21:12,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:21:12,394 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 218 [2020-07-07 13:21:12,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:21:12,400 INFO L225 Difference]: With dead ends: 2030 [2020-07-07 13:21:12,400 INFO L226 Difference]: Without dead ends: 1100 [2020-07-07 13:21:12,403 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 [2020-07-07 13:21:12,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1100 states. [2020-07-07 13:21:12,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1100 to 1090. [2020-07-07 13:21:12,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1090 states. [2020-07-07 13:21:12,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1090 states to 1090 states and 1323 transitions. [2020-07-07 13:21:12,597 INFO L78 Accepts]: Start accepts. Automaton has 1090 states and 1323 transitions. Word has length 218 [2020-07-07 13:21:12,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:21:12,598 INFO L479 AbstractCegarLoop]: Abstraction has 1090 states and 1323 transitions. [2020-07-07 13:21:12,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:21:12,598 INFO L276 IsEmpty]: Start isEmpty. Operand 1090 states and 1323 transitions. [2020-07-07 13:21:12,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-07-07 13:21:12,605 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:21:12,605 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:21:12,606 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-07 13:21:12,606 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:21:12,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:21:12,607 INFO L82 PathProgramCache]: Analyzing trace with hash -1830962644, now seen corresponding path program 1 times [2020-07-07 13:21:12,607 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:21:12,609 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [103860078] [2020-07-07 13:21:12,610 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:21:12,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:12,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:12,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:21:12,805 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:21:12,806 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [103860078] [2020-07-07 13:21:12,807 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:21:12,807 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:21:12,807 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22364092] [2020-07-07 13:21:12,808 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:21:12,809 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:21:12,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:21:12,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:21:12,810 INFO L87 Difference]: Start difference. First operand 1090 states and 1323 transitions. Second operand 3 states. [2020-07-07 13:21:13,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:21:13,258 INFO L93 Difference]: Finished difference Result 2952 states and 3635 transitions. [2020-07-07 13:21:13,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:21:13,259 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 220 [2020-07-07 13:21:13,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:21:13,272 INFO L225 Difference]: With dead ends: 2952 [2020-07-07 13:21:13,272 INFO L226 Difference]: Without dead ends: 2014 [2020-07-07 13:21:13,275 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 [2020-07-07 13:21:13,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2014 states. [2020-07-07 13:21:13,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2014 to 2012. [2020-07-07 13:21:13,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2012 states. [2020-07-07 13:21:13,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2012 states to 2012 states and 2455 transitions. [2020-07-07 13:21:13,666 INFO L78 Accepts]: Start accepts. Automaton has 2012 states and 2455 transitions. Word has length 220 [2020-07-07 13:21:13,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:21:13,667 INFO L479 AbstractCegarLoop]: Abstraction has 2012 states and 2455 transitions. [2020-07-07 13:21:13,667 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:21:13,667 INFO L276 IsEmpty]: Start isEmpty. Operand 2012 states and 2455 transitions. [2020-07-07 13:21:13,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-07-07 13:21:13,676 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:21:13,676 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:21:13,677 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-07 13:21:13,677 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:21:13,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:21:13,678 INFO L82 PathProgramCache]: Analyzing trace with hash 777824814, now seen corresponding path program 1 times [2020-07-07 13:21:13,678 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:21:13,679 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1048089259] [2020-07-07 13:21:13,679 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:21:13,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:13,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:13,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:21:13,879 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:21:13,879 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1048089259] [2020-07-07 13:21:13,880 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:21:13,880 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:21:13,887 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972864900] [2020-07-07 13:21:13,888 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:21:13,888 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:21:13,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:21:13,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:21:13,890 INFO L87 Difference]: Start difference. First operand 2012 states and 2455 transitions. Second operand 3 states. [2020-07-07 13:21:14,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:21:14,252 INFO L93 Difference]: Finished difference Result 2967 states and 3629 transitions. [2020-07-07 13:21:14,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:21:14,253 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 220 [2020-07-07 13:21:14,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:21:14,266 INFO L225 Difference]: With dead ends: 2967 [2020-07-07 13:21:14,266 INFO L226 Difference]: Without dead ends: 2029 [2020-07-07 13:21:14,273 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 [2020-07-07 13:21:14,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2029 states. [2020-07-07 13:21:14,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2029 to 2027. [2020-07-07 13:21:14,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2027 states. [2020-07-07 13:21:14,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2027 states to 2027 states and 2461 transitions. [2020-07-07 13:21:14,553 INFO L78 Accepts]: Start accepts. Automaton has 2027 states and 2461 transitions. Word has length 220 [2020-07-07 13:21:14,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:21:14,554 INFO L479 AbstractCegarLoop]: Abstraction has 2027 states and 2461 transitions. [2020-07-07 13:21:14,554 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:21:14,554 INFO L276 IsEmpty]: Start isEmpty. Operand 2027 states and 2461 transitions. [2020-07-07 13:21:14,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-07-07 13:21:14,558 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:21:14,559 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:21:14,559 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-07 13:21:14,559 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:21:14,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:21:14,560 INFO L82 PathProgramCache]: Analyzing trace with hash -939173952, now seen corresponding path program 1 times [2020-07-07 13:21:14,560 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:21:14,560 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1349543658] [2020-07-07 13:21:14,560 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:21:14,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:14,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:14,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:21:14,667 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:21:14,667 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1349543658] [2020-07-07 13:21:14,667 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:21:14,668 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:21:14,668 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576316495] [2020-07-07 13:21:14,669 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:21:14,669 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:21:14,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:21:14,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:21:14,670 INFO L87 Difference]: Start difference. First operand 2027 states and 2461 transitions. Second operand 3 states. [2020-07-07 13:21:15,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:21:15,159 INFO L93 Difference]: Finished difference Result 3887 states and 4768 transitions. [2020-07-07 13:21:15,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:21:15,159 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 221 [2020-07-07 13:21:15,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:21:15,175 INFO L225 Difference]: With dead ends: 3887 [2020-07-07 13:21:15,175 INFO L226 Difference]: Without dead ends: 2946 [2020-07-07 13:21:15,179 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 [2020-07-07 13:21:15,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2946 states. [2020-07-07 13:21:15,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2946 to 2946. [2020-07-07 13:21:15,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2946 states. [2020-07-07 13:21:15,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2946 states to 2946 states and 3588 transitions. [2020-07-07 13:21:15,515 INFO L78 Accepts]: Start accepts. Automaton has 2946 states and 3588 transitions. Word has length 221 [2020-07-07 13:21:15,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:21:15,516 INFO L479 AbstractCegarLoop]: Abstraction has 2946 states and 3588 transitions. [2020-07-07 13:21:15,516 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:21:15,516 INFO L276 IsEmpty]: Start isEmpty. Operand 2946 states and 3588 transitions. [2020-07-07 13:21:15,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2020-07-07 13:21:15,527 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:21:15,527 INFO L422 BasicCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:21:15,528 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-07 13:21:15,528 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:21:15,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:21:15,529 INFO L82 PathProgramCache]: Analyzing trace with hash -1852648600, now seen corresponding path program 1 times [2020-07-07 13:21:15,529 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:21:15,530 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [407159278] [2020-07-07 13:21:15,530 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:21:15,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:15,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:15,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:21:15,676 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:21:15,677 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [407159278] [2020-07-07 13:21:15,677 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:21:15,678 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:21:15,678 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555301003] [2020-07-07 13:21:15,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:21:15,679 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:21:15,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:21:15,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:21:15,680 INFO L87 Difference]: Start difference. First operand 2946 states and 3588 transitions. Second operand 3 states. [2020-07-07 13:21:16,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:21:16,327 INFO L93 Difference]: Finished difference Result 6400 states and 8052 transitions. [2020-07-07 13:21:16,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:21:16,327 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 231 [2020-07-07 13:21:16,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:21:16,346 INFO L225 Difference]: With dead ends: 6400 [2020-07-07 13:21:16,346 INFO L226 Difference]: Without dead ends: 3609 [2020-07-07 13:21:16,353 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 [2020-07-07 13:21:16,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3609 states. [2020-07-07 13:21:16,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3609 to 3423. [2020-07-07 13:21:16,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3423 states. [2020-07-07 13:21:16,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3423 states to 3423 states and 4104 transitions. [2020-07-07 13:21:16,672 INFO L78 Accepts]: Start accepts. Automaton has 3423 states and 4104 transitions. Word has length 231 [2020-07-07 13:21:16,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:21:16,673 INFO L479 AbstractCegarLoop]: Abstraction has 3423 states and 4104 transitions. [2020-07-07 13:21:16,673 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:21:16,673 INFO L276 IsEmpty]: Start isEmpty. Operand 3423 states and 4104 transitions. [2020-07-07 13:21:16,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2020-07-07 13:21:16,683 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:21:16,684 INFO L422 BasicCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:21:16,684 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-07 13:21:16,684 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:21:16,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:21:16,685 INFO L82 PathProgramCache]: Analyzing trace with hash 598717384, now seen corresponding path program 1 times [2020-07-07 13:21:16,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:21:16,686 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1995673381] [2020-07-07 13:21:16,686 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:21:16,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:16,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:16,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:21:16,863 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:21:16,863 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1995673381] [2020-07-07 13:21:16,863 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:21:16,864 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:21:16,864 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274594951] [2020-07-07 13:21:16,864 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:21:16,865 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:21:16,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:21:16,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:21:16,865 INFO L87 Difference]: Start difference. First operand 3423 states and 4104 transitions. Second operand 3 states. [2020-07-07 13:21:17,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:21:17,405 INFO L93 Difference]: Finished difference Result 7032 states and 8518 transitions. [2020-07-07 13:21:17,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:21:17,405 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 231 [2020-07-07 13:21:17,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:21:17,425 INFO L225 Difference]: With dead ends: 7032 [2020-07-07 13:21:17,425 INFO L226 Difference]: Without dead ends: 3776 [2020-07-07 13:21:17,437 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 [2020-07-07 13:21:17,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3776 states. [2020-07-07 13:21:17,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3776 to 3636. [2020-07-07 13:21:17,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3636 states. [2020-07-07 13:21:17,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3636 states to 3636 states and 4332 transitions. [2020-07-07 13:21:17,802 INFO L78 Accepts]: Start accepts. Automaton has 3636 states and 4332 transitions. Word has length 231 [2020-07-07 13:21:17,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:21:17,802 INFO L479 AbstractCegarLoop]: Abstraction has 3636 states and 4332 transitions. [2020-07-07 13:21:17,802 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:21:17,803 INFO L276 IsEmpty]: Start isEmpty. Operand 3636 states and 4332 transitions. [2020-07-07 13:21:17,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-07-07 13:21:17,811 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:21:17,811 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:21:17,811 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-07-07 13:21:17,812 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:21:17,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:21:17,812 INFO L82 PathProgramCache]: Analyzing trace with hash -320985619, now seen corresponding path program 1 times [2020-07-07 13:21:17,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:21:17,813 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [260586075] [2020-07-07 13:21:17,813 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:21:17,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:17,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:17,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:21:17,912 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:21:17,912 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [260586075] [2020-07-07 13:21:17,915 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:21:17,915 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:21:17,916 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903033167] [2020-07-07 13:21:17,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:21:17,917 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:21:17,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:21:17,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:21:17,917 INFO L87 Difference]: Start difference. First operand 3636 states and 4332 transitions. Second operand 3 states. [2020-07-07 13:21:18,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:21:18,401 INFO L93 Difference]: Finished difference Result 7105 states and 8510 transitions. [2020-07-07 13:21:18,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:21:18,402 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 246 [2020-07-07 13:21:18,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:21:18,426 INFO L225 Difference]: With dead ends: 7105 [2020-07-07 13:21:18,426 INFO L226 Difference]: Without dead ends: 4785 [2020-07-07 13:21:18,433 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 [2020-07-07 13:21:18,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4785 states. [2020-07-07 13:21:18,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4785 to 4785. [2020-07-07 13:21:18,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4785 states. [2020-07-07 13:21:18,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4785 states to 4785 states and 5711 transitions. [2020-07-07 13:21:18,917 INFO L78 Accepts]: Start accepts. Automaton has 4785 states and 5711 transitions. Word has length 246 [2020-07-07 13:21:18,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:21:18,918 INFO L479 AbstractCegarLoop]: Abstraction has 4785 states and 5711 transitions. [2020-07-07 13:21:18,918 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:21:18,918 INFO L276 IsEmpty]: Start isEmpty. Operand 4785 states and 5711 transitions. [2020-07-07 13:21:18,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-07-07 13:21:18,928 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:21:18,929 INFO L422 BasicCegarLoop]: trace histogram [5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:21:18,929 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-07-07 13:21:18,929 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:21:18,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:21:18,930 INFO L82 PathProgramCache]: Analyzing trace with hash -2112197708, now seen corresponding path program 1 times [2020-07-07 13:21:18,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:21:18,935 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [784124236] [2020-07-07 13:21:18,935 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:21:18,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:19,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:19,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:21:19,055 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:21:19,055 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [784124236] [2020-07-07 13:21:19,056 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:21:19,056 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:21:19,056 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048760764] [2020-07-07 13:21:19,057 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:21:19,057 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:21:19,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:21:19,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:21:19,058 INFO L87 Difference]: Start difference. First operand 4785 states and 5711 transitions. Second operand 3 states. [2020-07-07 13:21:19,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:21:19,587 INFO L93 Difference]: Finished difference Result 9827 states and 11856 transitions. [2020-07-07 13:21:19,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:21:19,588 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 255 [2020-07-07 13:21:19,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:21:19,633 INFO L225 Difference]: With dead ends: 9827 [2020-07-07 13:21:19,633 INFO L226 Difference]: Without dead ends: 5209 [2020-07-07 13:21:19,644 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 [2020-07-07 13:21:19,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5209 states. [2020-07-07 13:21:20,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5209 to 5101. [2020-07-07 13:21:20,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5101 states. [2020-07-07 13:21:20,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5101 states to 5101 states and 6047 transitions. [2020-07-07 13:21:20,199 INFO L78 Accepts]: Start accepts. Automaton has 5101 states and 6047 transitions. Word has length 255 [2020-07-07 13:21:20,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:21:20,200 INFO L479 AbstractCegarLoop]: Abstraction has 5101 states and 6047 transitions. [2020-07-07 13:21:20,200 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:21:20,200 INFO L276 IsEmpty]: Start isEmpty. Operand 5101 states and 6047 transitions. [2020-07-07 13:21:20,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2020-07-07 13:21:20,220 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:21:20,220 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:21:20,221 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-07-07 13:21:20,221 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:21:20,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:21:20,221 INFO L82 PathProgramCache]: Analyzing trace with hash -1182669231, now seen corresponding path program 1 times [2020-07-07 13:21:20,222 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:21:20,222 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1036193241] [2020-07-07 13:21:20,222 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:21:20,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:20,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:20,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:21:20,384 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:21:20,385 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1036193241] [2020-07-07 13:21:20,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:21:20,385 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 13:21:20,386 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889457763] [2020-07-07 13:21:20,386 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 13:21:20,386 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:21:20,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 13:21:20,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-07 13:21:20,387 INFO L87 Difference]: Start difference. First operand 5101 states and 6047 transitions. Second operand 5 states. [2020-07-07 13:21:21,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:21:21,360 INFO L93 Difference]: Finished difference Result 12439 states and 15060 transitions. [2020-07-07 13:21:21,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 13:21:21,361 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 274 [2020-07-07 13:21:21,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:21:21,379 INFO L225 Difference]: With dead ends: 12439 [2020-07-07 13:21:21,379 INFO L226 Difference]: Without dead ends: 7505 [2020-07-07 13:21:21,393 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-07 13:21:21,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7505 states. [2020-07-07 13:21:21,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7505 to 5858. [2020-07-07 13:21:21,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5858 states. [2020-07-07 13:21:21,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5858 states to 5858 states and 6931 transitions. [2020-07-07 13:21:21,790 INFO L78 Accepts]: Start accepts. Automaton has 5858 states and 6931 transitions. Word has length 274 [2020-07-07 13:21:21,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:21:21,790 INFO L479 AbstractCegarLoop]: Abstraction has 5858 states and 6931 transitions. [2020-07-07 13:21:21,790 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 13:21:21,790 INFO L276 IsEmpty]: Start isEmpty. Operand 5858 states and 6931 transitions. [2020-07-07 13:21:21,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2020-07-07 13:21:21,806 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:21:21,806 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:21:21,806 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-07-07 13:21:21,806 INFO L427 AbstractCegarLoop]: === Iteration 16 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:21:21,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:21:21,807 INFO L82 PathProgramCache]: Analyzing trace with hash 178559340, now seen corresponding path program 2 times [2020-07-07 13:21:21,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:21:21,807 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2116969818] [2020-07-07 13:21:21,808 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:21:21,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:21,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:21,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:21:21,932 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:21:21,932 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2116969818] [2020-07-07 13:21:21,932 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:21:21,933 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 13:21:21,933 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467711877] [2020-07-07 13:21:21,934 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 13:21:21,934 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:21:21,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 13:21:21,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-07 13:21:21,934 INFO L87 Difference]: Start difference. First operand 5858 states and 6931 transitions. Second operand 5 states. [2020-07-07 13:21:22,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:21:22,646 INFO L93 Difference]: Finished difference Result 9951 states and 11714 transitions. [2020-07-07 13:21:22,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 13:21:22,647 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 277 [2020-07-07 13:21:22,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:21:22,666 INFO L225 Difference]: With dead ends: 9951 [2020-07-07 13:21:22,666 INFO L226 Difference]: Without dead ends: 7022 [2020-07-07 13:21:22,676 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-07 13:21:22,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7022 states. [2020-07-07 13:21:23,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7022 to 5858. [2020-07-07 13:21:23,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5858 states. [2020-07-07 13:21:23,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5858 states to 5858 states and 6931 transitions. [2020-07-07 13:21:23,083 INFO L78 Accepts]: Start accepts. Automaton has 5858 states and 6931 transitions. Word has length 277 [2020-07-07 13:21:23,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:21:23,084 INFO L479 AbstractCegarLoop]: Abstraction has 5858 states and 6931 transitions. [2020-07-07 13:21:23,084 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 13:21:23,084 INFO L276 IsEmpty]: Start isEmpty. Operand 5858 states and 6931 transitions. [2020-07-07 13:21:23,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2020-07-07 13:21:23,096 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:21:23,096 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:21:23,096 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-07-07 13:21:23,097 INFO L427 AbstractCegarLoop]: === Iteration 17 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:21:23,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:21:23,097 INFO L82 PathProgramCache]: Analyzing trace with hash -1946922308, now seen corresponding path program 1 times [2020-07-07 13:21:23,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:21:23,098 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1647843889] [2020-07-07 13:21:23,098 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:21:23,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:23,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:23,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:21:23,436 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:21:23,437 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1647843889] [2020-07-07 13:21:23,437 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:21:23,437 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 13:21:23,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160722] [2020-07-07 13:21:23,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 13:21:23,439 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:21:23,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 13:21:23,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 13:21:23,439 INFO L87 Difference]: Start difference. First operand 5858 states and 6931 transitions. Second operand 4 states. [2020-07-07 13:21:24,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:21:24,366 INFO L93 Difference]: Finished difference Result 12288 states and 14641 transitions. [2020-07-07 13:21:24,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 13:21:24,367 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 277 [2020-07-07 13:21:24,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:21:24,395 INFO L225 Difference]: With dead ends: 12288 [2020-07-07 13:21:24,395 INFO L226 Difference]: Without dead ends: 9355 [2020-07-07 13:21:24,407 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-07 13:21:24,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9355 states. [2020-07-07 13:21:25,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9355 to 5930. [2020-07-07 13:21:25,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5930 states. [2020-07-07 13:21:25,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5930 states to 5930 states and 7019 transitions. [2020-07-07 13:21:25,619 INFO L78 Accepts]: Start accepts. Automaton has 5930 states and 7019 transitions. Word has length 277 [2020-07-07 13:21:25,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:21:25,620 INFO L479 AbstractCegarLoop]: Abstraction has 5930 states and 7019 transitions. [2020-07-07 13:21:25,620 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 13:21:25,621 INFO L276 IsEmpty]: Start isEmpty. Operand 5930 states and 7019 transitions. [2020-07-07 13:21:25,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2020-07-07 13:21:25,631 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:21:25,631 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:21:25,632 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-07-07 13:21:25,632 INFO L427 AbstractCegarLoop]: === Iteration 18 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:21:25,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:21:25,632 INFO L82 PathProgramCache]: Analyzing trace with hash -507122916, now seen corresponding path program 3 times [2020-07-07 13:21:25,633 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:21:25,633 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1455234711] [2020-07-07 13:21:25,633 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:21:25,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:25,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:25,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:21:25,750 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:21:25,750 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1455234711] [2020-07-07 13:21:25,751 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:21:25,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 13:21:25,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481981802] [2020-07-07 13:21:25,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 13:21:25,752 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:21:25,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 13:21:25,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-07 13:21:25,752 INFO L87 Difference]: Start difference. First operand 5930 states and 7019 transitions. Second operand 5 states. [2020-07-07 13:21:26,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:21:26,318 INFO L93 Difference]: Finished difference Result 9635 states and 11354 transitions. [2020-07-07 13:21:26,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 13:21:26,318 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 277 [2020-07-07 13:21:26,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:21:26,337 INFO L225 Difference]: With dead ends: 9635 [2020-07-07 13:21:26,337 INFO L226 Difference]: Without dead ends: 6634 [2020-07-07 13:21:26,346 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-07 13:21:26,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6634 states. [2020-07-07 13:21:26,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6634 to 6010. [2020-07-07 13:21:26,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6010 states. [2020-07-07 13:21:26,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6010 states to 6010 states and 7107 transitions. [2020-07-07 13:21:26,977 INFO L78 Accepts]: Start accepts. Automaton has 6010 states and 7107 transitions. Word has length 277 [2020-07-07 13:21:26,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:21:26,978 INFO L479 AbstractCegarLoop]: Abstraction has 6010 states and 7107 transitions. [2020-07-07 13:21:26,978 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 13:21:26,978 INFO L276 IsEmpty]: Start isEmpty. Operand 6010 states and 7107 transitions. [2020-07-07 13:21:26,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2020-07-07 13:21:26,987 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:21:26,988 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:21:26,988 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-07-07 13:21:26,988 INFO L427 AbstractCegarLoop]: === Iteration 19 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:21:26,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:21:26,989 INFO L82 PathProgramCache]: Analyzing trace with hash 875870054, now seen corresponding path program 1 times [2020-07-07 13:21:26,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:21:26,989 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [609342074] [2020-07-07 13:21:26,989 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:21:27,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:27,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:27,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:21:27,103 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:21:27,103 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [609342074] [2020-07-07 13:21:27,103 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:21:27,103 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:21:27,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078081571] [2020-07-07 13:21:27,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:21:27,104 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:21:27,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:21:27,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:21:27,105 INFO L87 Difference]: Start difference. First operand 6010 states and 7107 transitions. Second operand 3 states. [2020-07-07 13:21:27,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:21:27,504 INFO L93 Difference]: Finished difference Result 11210 states and 13290 transitions. [2020-07-07 13:21:27,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:21:27,504 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 279 [2020-07-07 13:21:27,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:21:27,520 INFO L225 Difference]: With dead ends: 11210 [2020-07-07 13:21:27,521 INFO L226 Difference]: Without dead ends: 6822 [2020-07-07 13:21:27,532 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 [2020-07-07 13:21:27,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6822 states. [2020-07-07 13:21:28,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6822 to 6822. [2020-07-07 13:21:28,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6822 states. [2020-07-07 13:21:28,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6822 states to 6822 states and 8061 transitions. [2020-07-07 13:21:28,100 INFO L78 Accepts]: Start accepts. Automaton has 6822 states and 8061 transitions. Word has length 279 [2020-07-07 13:21:28,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:21:28,100 INFO L479 AbstractCegarLoop]: Abstraction has 6822 states and 8061 transitions. [2020-07-07 13:21:28,100 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:21:28,101 INFO L276 IsEmpty]: Start isEmpty. Operand 6822 states and 8061 transitions. [2020-07-07 13:21:28,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2020-07-07 13:21:28,107 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:21:28,107 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:21:28,107 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-07-07 13:21:28,108 INFO L427 AbstractCegarLoop]: === Iteration 20 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:21:28,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:21:28,108 INFO L82 PathProgramCache]: Analyzing trace with hash -802173269, now seen corresponding path program 1 times [2020-07-07 13:21:28,108 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:21:28,109 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [911808366] [2020-07-07 13:21:28,109 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:21:28,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 13:21:28,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 13:21:28,296 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:21:28,297 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 13:21:28,297 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 13:21:28,298 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-07-07 13:21:28,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 01:21:28 BoogieIcfgContainer [2020-07-07 13:21:28,340 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 13:21:28,342 INFO L168 Benchmark]: Toolchain (without parser) took 21640.98 ms. Allocated memory was 136.3 MB in the beginning and 1.4 GB in the end (delta: 1.3 GB). Free memory was 99.4 MB in the beginning and 1.1 GB in the end (delta: -1.0 GB). Peak memory consumption was 268.9 MB. Max. memory is 7.1 GB. [2020-07-07 13:21:28,343 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 136.3 MB. Free memory was 118.5 MB in the beginning and 118.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-07 13:21:28,344 INFO L168 Benchmark]: CACSL2BoogieTranslator took 502.65 ms. Allocated memory was 136.3 MB in the beginning and 200.8 MB in the end (delta: 64.5 MB). Free memory was 99.2 MB in the beginning and 176.6 MB in the end (delta: -77.4 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2020-07-07 13:21:28,344 INFO L168 Benchmark]: Boogie Preprocessor took 53.39 ms. Allocated memory is still 200.8 MB. Free memory was 176.6 MB in the beginning and 173.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-07-07 13:21:28,345 INFO L168 Benchmark]: RCFGBuilder took 892.34 ms. Allocated memory is still 200.8 MB. Free memory was 173.8 MB in the beginning and 108.8 MB in the end (delta: 65.0 MB). Peak memory consumption was 65.0 MB. Max. memory is 7.1 GB. [2020-07-07 13:21:28,345 INFO L168 Benchmark]: TraceAbstraction took 20187.44 ms. Allocated memory was 200.8 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 108.1 MB in the beginning and 1.1 GB in the end (delta: -999.6 MB). Peak memory consumption was 213.1 MB. Max. memory is 7.1 GB. [2020-07-07 13:21:28,348 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 136.3 MB. Free memory was 118.5 MB in the beginning and 118.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 502.65 ms. Allocated memory was 136.3 MB in the beginning and 200.8 MB in the end (delta: 64.5 MB). Free memory was 99.2 MB in the beginning and 176.6 MB in the end (delta: -77.4 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 53.39 ms. Allocated memory is still 200.8 MB. Free memory was 176.6 MB in the beginning and 173.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 892.34 ms. Allocated memory is still 200.8 MB. Free memory was 173.8 MB in the beginning and 108.8 MB in the end (delta: 65.0 MB). Peak memory consumption was 65.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 20187.44 ms. Allocated memory was 200.8 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 108.1 MB in the beginning and 1.1 GB in the end (delta: -999.6 MB). Peak memory consumption was 213.1 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 [L558] CALL ssl3_connect(s) [L11] int s__info_callback = __VERIFIER_nondet_int() ; [L12] int s__in_handshake = __VERIFIER_nondet_int() ; [L13] int s__state ; [L14] int s__new_session ; [L15] int s__server ; [L16] int s__version = __VERIFIER_nondet_int() ; [L17] int s__type ; [L18] int s__init_num ; [L19] int s__bbio = __VERIFIER_nondet_int() ; [L20] int s__wbio = __VERIFIER_nondet_int() ; [L21] int s__hit = __VERIFIER_nondet_int() ; [L22] int s__rwstate ; [L23] int s__init_buf___0 = __VERIFIER_nondet_int() ; [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 = __VERIFIER_nondet_int() ; [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 = __VERIFIER_nondet_int() ; [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 [L253] COND FALSE !(ret <= 0) [L256] s__state = 4384 [L257] s__init_num = 0 [L258] 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 [L264] ret = __VERIFIER_nondet_int() [L265] COND TRUE blastFlag == 1 [L266] blastFlag = 2 [L268] COND FALSE !(ret <= 0) [L271] COND FALSE !(\read(s__hit)) [L274] s__state = 4400 [L276] 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 [L281] __cil_tmp56 = (unsigned long )s__s3__tmp__new_cipher__algorithms [L282] COND FALSE !(__cil_tmp56 + 256UL) [L285] ret = __VERIFIER_nondet_int() [L286] COND TRUE blastFlag == 2 [L287] blastFlag = 3 [L293] COND FALSE !(ret <= 0) [L298] s__state = 4416 [L299] s__init_num = 0 [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND FALSE !(s__state == 4384) [L125] COND FALSE !(s__state == 4385) [L128] COND FALSE !(s__state == 4400) [L131] COND FALSE !(s__state == 4401) [L134] COND TRUE s__state == 4416 [L303] ret = __VERIFIER_nondet_int() [L304] COND TRUE blastFlag == 3 [L305] blastFlag = 4 [L307] COND FALSE !(ret <= 0) [L310] s__state = 4432 [L311] s__init_num = 0 [L312] COND FALSE !(! tmp___6) [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND FALSE !(s__state == 4384) [L125] COND FALSE !(s__state == 4385) [L128] COND FALSE !(s__state == 4400) [L131] COND FALSE !(s__state == 4401) [L134] COND FALSE !(s__state == 4416) [L137] COND FALSE !(s__state == 4417) [L140] COND TRUE s__state == 4432 [L319] ret = __VERIFIER_nondet_int() [L320] COND TRUE blastFlag == 4 [L548] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 391 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 20.0s, OverallIterations: 20, TraceHistogramMax: 6, AutomataDifference: 9.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 8673 SDtfs, 5240 SDslu, 9235 SDs, 0 SdLazy, 2062 SolverSat, 271 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 126 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6822occurred in iteration=19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 6.6s AutomataMinimizationTime, 19 MinimizatonAttempts, 7401 StatesRemovedByMinimization, 15 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...