/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_1.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 13:17:11,158 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 13:17:11,161 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 13:17:11,179 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 13:17:11,180 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 13:17:11,182 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 13:17:11,184 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 13:17:11,197 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 13:17:11,200 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 13:17:11,201 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 13:17:11,203 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 13:17:11,206 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 13:17:11,206 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 13:17:11,208 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 13:17:11,212 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 13:17:11,214 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 13:17:11,215 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 13:17:11,216 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 13:17:11,220 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 13:17:11,225 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 13:17:11,229 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 13:17:11,232 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 13:17:11,233 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 13:17:11,234 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 13:17:11,237 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 13:17:11,256 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 13:17:11,257 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 13:17:11,258 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 13:17:11,259 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-17 13:17:11,270 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 13:17:11,271 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 13:17:11,272 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 13:17:11,272 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 13:17:11,272 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 13:17:11,272 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 13:17:11,273 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 13:17:11,273 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 13:17:11,273 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 13:17:11,273 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 13:17:11,273 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 13:17:11,274 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 13:17:11,274 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 13:17:11,274 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 13:17:11,274 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 13:17:11,274 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-17 13:17:11,275 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 13:17:11,275 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 13:17:11,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 13:17:11,275 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 13:17:11,275 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-17 13:17:11,276 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 13:17:11,276 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-17 13:17:11,600 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 13:17:11,615 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 13:17:11,618 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 13:17:11,620 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 13:17:11,620 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 13:17:11,621 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_1.cil-2.c [2020-07-17 13:17:11,697 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40086e825/a599f5d91524489f9cb6f121c15ed18f/FLAGb1b7fd158 [2020-07-17 13:17:12,222 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 13:17:12,223 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ssh-simplified/s3_clnt_1.cil-2.c [2020-07-17 13:17:12,242 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40086e825/a599f5d91524489f9cb6f121c15ed18f/FLAGb1b7fd158 [2020-07-17 13:17:12,546 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40086e825/a599f5d91524489f9cb6f121c15ed18f [2020-07-17 13:17:12,558 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 13:17:12,561 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 13:17:12,562 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 13:17:12,562 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 13:17:12,566 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 13:17:12,567 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 01:17:12" (1/1) ... [2020-07-17 13:17:12,570 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@629cf7ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:17:12, skipping insertion in model container [2020-07-17 13:17:12,570 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 01:17:12" (1/1) ... [2020-07-17 13:17:12,578 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 13:17:12,625 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 13:17:12,859 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 13:17:12,870 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 13:17:12,955 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 13:17:13,067 INFO L208 MainTranslator]: Completed translation [2020-07-17 13:17:13,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:17:13 WrapperNode [2020-07-17 13:17:13,067 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 13:17:13,068 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 13:17:13,068 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 13:17:13,069 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 13:17:13,080 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:17:13" (1/1) ... [2020-07-17 13:17:13,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:17:13" (1/1) ... [2020-07-17 13:17:13,089 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:17:13" (1/1) ... [2020-07-17 13:17:13,090 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:17:13" (1/1) ... [2020-07-17 13:17:13,102 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:17:13" (1/1) ... [2020-07-17 13:17:13,115 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:17:13" (1/1) ... [2020-07-17 13:17:13,118 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:17:13" (1/1) ... [2020-07-17 13:17:13,123 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 13:17:13,124 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 13:17:13,124 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 13:17:13,124 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 13:17:13,125 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:17:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 13:17:13,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 13:17:13,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 13:17:13,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-07-17 13:17:13,197 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 13:17:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 13:17:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-07-17 13:17:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 13:17:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-07-17 13:17:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-07-17 13:17:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 13:17:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 13:17:13,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 13:17:13,352 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-17 13:17:14,106 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-07-17 13:17:14,107 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-07-17 13:17:14,146 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 13:17:14,146 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-17 13:17:14,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 01:17:14 BoogieIcfgContainer [2020-07-17 13:17:14,159 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 13:17:14,161 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 13:17:14,162 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 13:17:14,167 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 13:17:14,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 01:17:12" (1/3) ... [2020-07-17 13:17:14,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3019bd46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 01:17:14, skipping insertion in model container [2020-07-17 13:17:14,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:17:13" (2/3) ... [2020-07-17 13:17:14,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3019bd46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 01:17:14, skipping insertion in model container [2020-07-17 13:17:14,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 01:17:14" (3/3) ... [2020-07-17 13:17:14,177 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_1.cil-2.c [2020-07-17 13:17:14,188 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-17 13:17:14,204 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 13:17:14,217 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 13:17:14,238 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 13:17:14,238 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 13:17:14,239 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-17 13:17:14,239 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 13:17:14,239 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 13:17:14,239 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 13:17:14,240 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 13:17:14,240 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 13:17:14,261 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states. [2020-07-17 13:17:14,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-07-17 13:17:14,284 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:17:14,286 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 13:17:14,286 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:17:14,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:17:14,294 INFO L82 PathProgramCache]: Analyzing trace with hash -1836119895, now seen corresponding path program 1 times [2020-07-17 13:17:14,304 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:17:14,304 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [57935632] [2020-07-17 13:17:14,305 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:17:14,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:14,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:14,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:17:14,896 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:17:14,898 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [57935632] [2020-07-17 13:17:14,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:17:14,902 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-17 13:17:14,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893285168] [2020-07-17 13:17:14,911 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 13:17:14,911 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:17:14,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 13:17:14,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-17 13:17:14,929 INFO L87 Difference]: Start difference. First operand 383 states. Second operand 5 states. [2020-07-17 13:17:15,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:17:15,452 INFO L93 Difference]: Finished difference Result 686 states and 901 transitions. [2020-07-17 13:17:15,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-17 13:17:15,454 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 160 [2020-07-17 13:17:15,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:17:15,491 INFO L225 Difference]: With dead ends: 686 [2020-07-17 13:17:15,492 INFO L226 Difference]: Without dead ends: 362 [2020-07-17 13:17:15,504 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-17 13:17:15,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2020-07-17 13:17:15,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 347. [2020-07-17 13:17:15,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2020-07-17 13:17:15,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 406 transitions. [2020-07-17 13:17:15,656 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 406 transitions. Word has length 160 [2020-07-17 13:17:15,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:17:15,660 INFO L479 AbstractCegarLoop]: Abstraction has 347 states and 406 transitions. [2020-07-17 13:17:15,661 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 13:17:15,661 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 406 transitions. [2020-07-17 13:17:15,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-07-17 13:17:15,676 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:17:15,677 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] [2020-07-17 13:17:15,678 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 13:17:15,678 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:17:15,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:17:15,678 INFO L82 PathProgramCache]: Analyzing trace with hash 1755332249, now seen corresponding path program 1 times [2020-07-17 13:17:15,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:17:15,679 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [664549350] [2020-07-17 13:17:15,679 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:17:15,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:15,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:15,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:17:15,922 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:17:15,923 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [664549350] [2020-07-17 13:17:15,923 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:17:15,924 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-17 13:17:15,924 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94081637] [2020-07-17 13:17:15,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 13:17:15,925 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:17:15,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 13:17:15,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-17 13:17:15,926 INFO L87 Difference]: Start difference. First operand 347 states and 406 transitions. Second operand 5 states. [2020-07-17 13:17:16,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:17:16,259 INFO L93 Difference]: Finished difference Result 607 states and 757 transitions. [2020-07-17 13:17:16,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-17 13:17:16,260 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 179 [2020-07-17 13:17:16,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:17:16,267 INFO L225 Difference]: With dead ends: 607 [2020-07-17 13:17:16,267 INFO L226 Difference]: Without dead ends: 405 [2020-07-17 13:17:16,275 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-17 13:17:16,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2020-07-17 13:17:16,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 360. [2020-07-17 13:17:16,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-07-17 13:17:16,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 424 transitions. [2020-07-17 13:17:16,329 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 424 transitions. Word has length 179 [2020-07-17 13:17:16,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:17:16,331 INFO L479 AbstractCegarLoop]: Abstraction has 360 states and 424 transitions. [2020-07-17 13:17:16,331 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 13:17:16,331 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 424 transitions. [2020-07-17 13:17:16,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-07-17 13:17:16,334 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:17:16,334 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] [2020-07-17 13:17:16,335 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 13:17:16,335 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:17:16,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:17:16,335 INFO L82 PathProgramCache]: Analyzing trace with hash 933719357, now seen corresponding path program 1 times [2020-07-17 13:17:16,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:17:16,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [441363902] [2020-07-17 13:17:16,337 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:17:16,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:16,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:16,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:17:16,465 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:17:16,465 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [441363902] [2020-07-17 13:17:16,465 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:17:16,466 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 13:17:16,466 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764959279] [2020-07-17 13:17:16,467 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 13:17:16,467 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:17:16,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 13:17:16,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 13:17:16,468 INFO L87 Difference]: Start difference. First operand 360 states and 424 transitions. Second operand 3 states. [2020-07-17 13:17:16,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:17:16,652 INFO L93 Difference]: Finished difference Result 603 states and 737 transitions. [2020-07-17 13:17:16,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 13:17:16,653 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 183 [2020-07-17 13:17:16,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:17:16,658 INFO L225 Difference]: With dead ends: 603 [2020-07-17 13:17:16,659 INFO L226 Difference]: Without dead ends: 388 [2020-07-17 13:17:16,661 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 13:17:16,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2020-07-17 13:17:16,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 378. [2020-07-17 13:17:16,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 378 states. [2020-07-17 13:17:16,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 447 transitions. [2020-07-17 13:17:16,697 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 447 transitions. Word has length 183 [2020-07-17 13:17:16,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:17:16,699 INFO L479 AbstractCegarLoop]: Abstraction has 378 states and 447 transitions. [2020-07-17 13:17:16,699 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 13:17:16,699 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 447 transitions. [2020-07-17 13:17:16,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-07-17 13:17:16,702 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:17:16,702 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] [2020-07-17 13:17:16,702 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 13:17:16,703 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:17:16,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:17:16,703 INFO L82 PathProgramCache]: Analyzing trace with hash 787271153, now seen corresponding path program 1 times [2020-07-17 13:17:16,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:17:16,704 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1658562992] [2020-07-17 13:17:16,704 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:17:16,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:16,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:16,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:17:16,887 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:17:16,888 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1658562992] [2020-07-17 13:17:16,888 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:17:16,889 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 13:17:16,889 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460328713] [2020-07-17 13:17:16,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 13:17:16,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:17:16,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 13:17:16,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 13:17:16,892 INFO L87 Difference]: Start difference. First operand 378 states and 447 transitions. Second operand 3 states. [2020-07-17 13:17:17,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:17:17,013 INFO L93 Difference]: Finished difference Result 837 states and 1037 transitions. [2020-07-17 13:17:17,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 13:17:17,014 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2020-07-17 13:17:17,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:17:17,018 INFO L225 Difference]: With dead ends: 837 [2020-07-17 13:17:17,019 INFO L226 Difference]: Without dead ends: 604 [2020-07-17 13:17:17,021 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 13:17:17,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2020-07-17 13:17:17,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 604. [2020-07-17 13:17:17,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 604 states. [2020-07-17 13:17:17,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 734 transitions. [2020-07-17 13:17:17,083 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 734 transitions. Word has length 190 [2020-07-17 13:17:17,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:17:17,083 INFO L479 AbstractCegarLoop]: Abstraction has 604 states and 734 transitions. [2020-07-17 13:17:17,083 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 13:17:17,084 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 734 transitions. [2020-07-17 13:17:17,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-07-17 13:17:17,087 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:17:17,087 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] [2020-07-17 13:17:17,087 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-17 13:17:17,088 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:17:17,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:17:17,088 INFO L82 PathProgramCache]: Analyzing trace with hash -1378664763, now seen corresponding path program 1 times [2020-07-17 13:17:17,089 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:17:17,089 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2075670984] [2020-07-17 13:17:17,089 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:17:17,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:17,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:17,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:17:17,264 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:17:17,264 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2075670984] [2020-07-17 13:17:17,265 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:17:17,265 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 13:17:17,266 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388894734] [2020-07-17 13:17:17,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 13:17:17,267 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:17:17,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 13:17:17,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 13:17:17,268 INFO L87 Difference]: Start difference. First operand 604 states and 734 transitions. Second operand 3 states. [2020-07-17 13:17:17,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:17:17,564 INFO L93 Difference]: Finished difference Result 1124 states and 1405 transitions. [2020-07-17 13:17:17,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 13:17:17,565 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 203 [2020-07-17 13:17:17,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:17:17,571 INFO L225 Difference]: With dead ends: 1124 [2020-07-17 13:17:17,572 INFO L226 Difference]: Without dead ends: 665 [2020-07-17 13:17:17,575 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 13:17:17,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2020-07-17 13:17:17,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 644. [2020-07-17 13:17:17,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 644 states. [2020-07-17 13:17:17,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 784 transitions. [2020-07-17 13:17:17,685 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 784 transitions. Word has length 203 [2020-07-17 13:17:17,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:17:17,687 INFO L479 AbstractCegarLoop]: Abstraction has 644 states and 784 transitions. [2020-07-17 13:17:17,687 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 13:17:17,687 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 784 transitions. [2020-07-17 13:17:17,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-07-17 13:17:17,695 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:17:17,696 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] [2020-07-17 13:17:17,696 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-17 13:17:17,696 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:17:17,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:17:17,699 INFO L82 PathProgramCache]: Analyzing trace with hash -2019314839, now seen corresponding path program 1 times [2020-07-17 13:17:17,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:17:17,700 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1584786308] [2020-07-17 13:17:17,700 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:17:17,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:17,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:17,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:17:17,872 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:17:17,873 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1584786308] [2020-07-17 13:17:17,874 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:17:17,875 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 13:17:17,875 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008177199] [2020-07-17 13:17:17,876 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 13:17:17,878 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:17:17,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 13:17:17,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 13:17:17,879 INFO L87 Difference]: Start difference. First operand 644 states and 784 transitions. Second operand 3 states. [2020-07-17 13:17:18,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:17:18,090 INFO L93 Difference]: Finished difference Result 1572 states and 1952 transitions. [2020-07-17 13:17:18,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 13:17:18,091 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 210 [2020-07-17 13:17:18,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:17:18,099 INFO L225 Difference]: With dead ends: 1572 [2020-07-17 13:17:18,100 INFO L226 Difference]: Without dead ends: 1073 [2020-07-17 13:17:18,102 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 13:17:18,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2020-07-17 13:17:18,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 1071. [2020-07-17 13:17:18,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1071 states. [2020-07-17 13:17:18,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1308 transitions. [2020-07-17 13:17:18,290 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1308 transitions. Word has length 210 [2020-07-17 13:17:18,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:17:18,292 INFO L479 AbstractCegarLoop]: Abstraction has 1071 states and 1308 transitions. [2020-07-17 13:17:18,293 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 13:17:18,301 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1308 transitions. [2020-07-17 13:17:18,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-07-17 13:17:18,313 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:17:18,314 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] [2020-07-17 13:17:18,314 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-17 13:17:18,315 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:17:18,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:17:18,315 INFO L82 PathProgramCache]: Analyzing trace with hash 1170821308, now seen corresponding path program 1 times [2020-07-17 13:17:18,316 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:17:18,318 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [492394657] [2020-07-17 13:17:18,318 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:17:18,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:18,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:18,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:17:18,547 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:17:18,548 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [492394657] [2020-07-17 13:17:18,548 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:17:18,549 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 13:17:18,549 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306450621] [2020-07-17 13:17:18,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 13:17:18,550 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:17:18,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 13:17:18,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 13:17:18,551 INFO L87 Difference]: Start difference. First operand 1071 states and 1308 transitions. Second operand 3 states. [2020-07-17 13:17:18,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:17:18,780 INFO L93 Difference]: Finished difference Result 2015 states and 2489 transitions. [2020-07-17 13:17:18,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 13:17:18,780 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 211 [2020-07-17 13:17:18,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:17:18,788 INFO L225 Difference]: With dead ends: 2015 [2020-07-17 13:17:18,788 INFO L226 Difference]: Without dead ends: 1089 [2020-07-17 13:17:18,791 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 13:17:18,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2020-07-17 13:17:18,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 1079. [2020-07-17 13:17:18,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1079 states. [2020-07-17 13:17:18,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1312 transitions. [2020-07-17 13:17:18,928 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1312 transitions. Word has length 211 [2020-07-17 13:17:18,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:17:18,928 INFO L479 AbstractCegarLoop]: Abstraction has 1079 states and 1312 transitions. [2020-07-17 13:17:18,928 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 13:17:18,928 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1312 transitions. [2020-07-17 13:17:18,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-07-17 13:17:18,933 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:17:18,933 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] [2020-07-17 13:17:18,933 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-17 13:17:18,933 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:17:18,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:17:18,934 INFO L82 PathProgramCache]: Analyzing trace with hash 1492439948, now seen corresponding path program 1 times [2020-07-17 13:17:18,934 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:17:18,934 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [198309850] [2020-07-17 13:17:18,935 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:17:18,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:18,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:19,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:17:19,032 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:17:19,033 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [198309850] [2020-07-17 13:17:19,033 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:17:19,033 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 13:17:19,033 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968321834] [2020-07-17 13:17:19,034 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 13:17:19,034 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:17:19,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 13:17:19,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 13:17:19,035 INFO L87 Difference]: Start difference. First operand 1079 states and 1312 transitions. Second operand 3 states. [2020-07-17 13:17:19,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:17:19,346 INFO L93 Difference]: Finished difference Result 2933 states and 3616 transitions. [2020-07-17 13:17:19,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 13:17:19,346 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 213 [2020-07-17 13:17:19,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:17:19,358 INFO L225 Difference]: With dead ends: 2933 [2020-07-17 13:17:19,358 INFO L226 Difference]: Without dead ends: 1999 [2020-07-17 13:17:19,361 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 13:17:19,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1999 states. [2020-07-17 13:17:19,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1999 to 1997. [2020-07-17 13:17:19,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1997 states. [2020-07-17 13:17:19,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1997 states to 1997 states and 2440 transitions. [2020-07-17 13:17:19,619 INFO L78 Accepts]: Start accepts. Automaton has 1997 states and 2440 transitions. Word has length 213 [2020-07-17 13:17:19,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:17:19,620 INFO L479 AbstractCegarLoop]: Abstraction has 1997 states and 2440 transitions. [2020-07-17 13:17:19,620 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 13:17:19,620 INFO L276 IsEmpty]: Start isEmpty. Operand 1997 states and 2440 transitions. [2020-07-17 13:17:19,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-07-17 13:17:19,627 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:17:19,628 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] [2020-07-17 13:17:19,628 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-17 13:17:19,628 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:17:19,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:17:19,629 INFO L82 PathProgramCache]: Analyzing trace with hash -193739890, now seen corresponding path program 1 times [2020-07-17 13:17:19,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:17:19,630 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1070898587] [2020-07-17 13:17:19,630 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:17:19,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:19,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:19,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:17:19,737 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:17:19,738 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1070898587] [2020-07-17 13:17:19,738 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:17:19,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 13:17:19,743 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376965471] [2020-07-17 13:17:19,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 13:17:19,744 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:17:19,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 13:17:19,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 13:17:19,745 INFO L87 Difference]: Start difference. First operand 1997 states and 2440 transitions. Second operand 3 states. [2020-07-17 13:17:20,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:17:20,059 INFO L93 Difference]: Finished difference Result 2948 states and 3610 transitions. [2020-07-17 13:17:20,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 13:17:20,060 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 213 [2020-07-17 13:17:20,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:17:20,075 INFO L225 Difference]: With dead ends: 2948 [2020-07-17 13:17:20,075 INFO L226 Difference]: Without dead ends: 2014 [2020-07-17 13:17:20,078 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 13:17:20,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2014 states. [2020-07-17 13:17:20,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2014 to 2012. [2020-07-17 13:17:20,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2012 states. [2020-07-17 13:17:20,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2012 states to 2012 states and 2446 transitions. [2020-07-17 13:17:20,326 INFO L78 Accepts]: Start accepts. Automaton has 2012 states and 2446 transitions. Word has length 213 [2020-07-17 13:17:20,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:17:20,327 INFO L479 AbstractCegarLoop]: Abstraction has 2012 states and 2446 transitions. [2020-07-17 13:17:20,327 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 13:17:20,327 INFO L276 IsEmpty]: Start isEmpty. Operand 2012 states and 2446 transitions. [2020-07-17 13:17:20,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-07-17 13:17:20,332 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:17:20,333 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] [2020-07-17 13:17:20,333 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-17 13:17:20,333 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:17:20,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:17:20,334 INFO L82 PathProgramCache]: Analyzing trace with hash -792504871, now seen corresponding path program 1 times [2020-07-17 13:17:20,334 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:17:20,334 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2045528689] [2020-07-17 13:17:20,334 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:17:20,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:20,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:20,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:17:20,421 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:17:20,421 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2045528689] [2020-07-17 13:17:20,421 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:17:20,422 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 13:17:20,422 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921156881] [2020-07-17 13:17:20,422 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 13:17:20,423 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:17:20,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 13:17:20,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 13:17:20,424 INFO L87 Difference]: Start difference. First operand 2012 states and 2446 transitions. Second operand 3 states. [2020-07-17 13:17:20,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:17:20,813 INFO L93 Difference]: Finished difference Result 3864 states and 4745 transitions. [2020-07-17 13:17:20,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 13:17:20,814 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 214 [2020-07-17 13:17:20,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:17:20,830 INFO L225 Difference]: With dead ends: 3864 [2020-07-17 13:17:20,830 INFO L226 Difference]: Without dead ends: 2927 [2020-07-17 13:17:20,833 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 13:17:20,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2927 states. [2020-07-17 13:17:21,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2927 to 2927. [2020-07-17 13:17:21,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2927 states. [2020-07-17 13:17:21,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2927 states to 2927 states and 3569 transitions. [2020-07-17 13:17:21,088 INFO L78 Accepts]: Start accepts. Automaton has 2927 states and 3569 transitions. Word has length 214 [2020-07-17 13:17:21,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:17:21,089 INFO L479 AbstractCegarLoop]: Abstraction has 2927 states and 3569 transitions. [2020-07-17 13:17:21,089 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 13:17:21,089 INFO L276 IsEmpty]: Start isEmpty. Operand 2927 states and 3569 transitions. [2020-07-17 13:17:21,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-07-17 13:17:21,096 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:17:21,096 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] [2020-07-17 13:17:21,096 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-17 13:17:21,097 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:17:21,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:17:21,097 INFO L82 PathProgramCache]: Analyzing trace with hash 1362043361, now seen corresponding path program 1 times [2020-07-17 13:17:21,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:17:21,097 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1033272215] [2020-07-17 13:17:21,098 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:17:21,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:21,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:21,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:17:21,208 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:17:21,208 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1033272215] [2020-07-17 13:17:21,208 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:17:21,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 13:17:21,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394349242] [2020-07-17 13:17:21,210 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 13:17:21,210 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:17:21,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 13:17:21,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 13:17:21,211 INFO L87 Difference]: Start difference. First operand 2927 states and 3569 transitions. Second operand 3 states. [2020-07-17 13:17:21,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:17:21,800 INFO L93 Difference]: Finished difference Result 6369 states and 8021 transitions. [2020-07-17 13:17:21,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 13:17:21,801 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 224 [2020-07-17 13:17:21,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:17:21,820 INFO L225 Difference]: With dead ends: 6369 [2020-07-17 13:17:21,821 INFO L226 Difference]: Without dead ends: 3590 [2020-07-17 13:17:21,828 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 13:17:21,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3590 states. [2020-07-17 13:17:22,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3590 to 3404. [2020-07-17 13:17:22,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3404 states. [2020-07-17 13:17:22,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3404 states to 3404 states and 4085 transitions. [2020-07-17 13:17:22,142 INFO L78 Accepts]: Start accepts. Automaton has 3404 states and 4085 transitions. Word has length 224 [2020-07-17 13:17:22,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:17:22,143 INFO L479 AbstractCegarLoop]: Abstraction has 3404 states and 4085 transitions. [2020-07-17 13:17:22,143 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 13:17:22,143 INFO L276 IsEmpty]: Start isEmpty. Operand 3404 states and 4085 transitions. [2020-07-17 13:17:22,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-07-17 13:17:22,151 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:17:22,152 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] [2020-07-17 13:17:22,152 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-17 13:17:22,153 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:17:22,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:17:22,153 INFO L82 PathProgramCache]: Analyzing trace with hash -481557951, now seen corresponding path program 1 times [2020-07-17 13:17:22,153 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:17:22,154 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [73994767] [2020-07-17 13:17:22,154 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:17:22,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:22,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:22,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:17:22,290 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:17:22,290 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [73994767] [2020-07-17 13:17:22,290 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:17:22,290 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 13:17:22,291 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236986674] [2020-07-17 13:17:22,291 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 13:17:22,291 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:17:22,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 13:17:22,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 13:17:22,292 INFO L87 Difference]: Start difference. First operand 3404 states and 4085 transitions. Second operand 3 states. [2020-07-17 13:17:22,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:17:22,723 INFO L93 Difference]: Finished difference Result 6973 states and 8455 transitions. [2020-07-17 13:17:22,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 13:17:22,723 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 224 [2020-07-17 13:17:22,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:17:22,742 INFO L225 Difference]: With dead ends: 6973 [2020-07-17 13:17:22,743 INFO L226 Difference]: Without dead ends: 3729 [2020-07-17 13:17:22,751 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 13:17:22,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3729 states. [2020-07-17 13:17:23,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3729 to 3617. [2020-07-17 13:17:23,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3617 states. [2020-07-17 13:17:23,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3617 states to 3617 states and 4313 transitions. [2020-07-17 13:17:23,061 INFO L78 Accepts]: Start accepts. Automaton has 3617 states and 4313 transitions. Word has length 224 [2020-07-17 13:17:23,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:17:23,062 INFO L479 AbstractCegarLoop]: Abstraction has 3617 states and 4313 transitions. [2020-07-17 13:17:23,062 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 13:17:23,062 INFO L276 IsEmpty]: Start isEmpty. Operand 3617 states and 4313 transitions. [2020-07-17 13:17:23,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-07-17 13:17:23,071 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:17:23,071 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] [2020-07-17 13:17:23,072 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-07-17 13:17:23,072 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:17:23,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:17:23,072 INFO L82 PathProgramCache]: Analyzing trace with hash -1724843027, now seen corresponding path program 1 times [2020-07-17 13:17:23,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:17:23,073 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1780349381] [2020-07-17 13:17:23,073 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:17:23,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:23,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:23,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:17:23,174 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:17:23,174 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1780349381] [2020-07-17 13:17:23,175 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:17:23,175 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 13:17:23,175 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196596975] [2020-07-17 13:17:23,176 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 13:17:23,176 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:17:23,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 13:17:23,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 13:17:23,178 INFO L87 Difference]: Start difference. First operand 3617 states and 4313 transitions. Second operand 3 states. [2020-07-17 13:17:23,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:17:23,691 INFO L93 Difference]: Finished difference Result 7074 states and 8479 transitions. [2020-07-17 13:17:23,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 13:17:23,692 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 239 [2020-07-17 13:17:23,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:17:23,722 INFO L225 Difference]: With dead ends: 7074 [2020-07-17 13:17:23,723 INFO L226 Difference]: Without dead ends: 4762 [2020-07-17 13:17:23,733 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 13:17:23,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4762 states. [2020-07-17 13:17:24,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4762 to 4762. [2020-07-17 13:17:24,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4762 states. [2020-07-17 13:17:24,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4762 states to 4762 states and 5688 transitions. [2020-07-17 13:17:24,243 INFO L78 Accepts]: Start accepts. Automaton has 4762 states and 5688 transitions. Word has length 239 [2020-07-17 13:17:24,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:17:24,244 INFO L479 AbstractCegarLoop]: Abstraction has 4762 states and 5688 transitions. [2020-07-17 13:17:24,244 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 13:17:24,244 INFO L276 IsEmpty]: Start isEmpty. Operand 4762 states and 5688 transitions. [2020-07-17 13:17:24,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2020-07-17 13:17:24,255 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:17:24,256 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] [2020-07-17 13:17:24,256 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-07-17 13:17:24,256 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:17:24,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:17:24,256 INFO L82 PathProgramCache]: Analyzing trace with hash -1037157879, now seen corresponding path program 1 times [2020-07-17 13:17:24,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:17:24,262 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [590652552] [2020-07-17 13:17:24,263 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:17:24,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:24,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:24,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:17:24,363 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:17:24,364 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [590652552] [2020-07-17 13:17:24,364 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:17:24,364 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 13:17:24,364 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405867455] [2020-07-17 13:17:24,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 13:17:24,365 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:17:24,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 13:17:24,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 13:17:24,366 INFO L87 Difference]: Start difference. First operand 4762 states and 5688 transitions. Second operand 3 states. [2020-07-17 13:17:24,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:17:24,870 INFO L93 Difference]: Finished difference Result 9788 states and 11817 transitions. [2020-07-17 13:17:24,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 13:17:24,870 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 247 [2020-07-17 13:17:24,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:17:24,904 INFO L225 Difference]: With dead ends: 9788 [2020-07-17 13:17:24,905 INFO L226 Difference]: Without dead ends: 5186 [2020-07-17 13:17:24,915 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 13:17:24,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5186 states. [2020-07-17 13:17:25,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5186 to 5078. [2020-07-17 13:17:25,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5078 states. [2020-07-17 13:17:25,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5078 states to 5078 states and 6024 transitions. [2020-07-17 13:17:25,414 INFO L78 Accepts]: Start accepts. Automaton has 5078 states and 6024 transitions. Word has length 247 [2020-07-17 13:17:25,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:17:25,416 INFO L479 AbstractCegarLoop]: Abstraction has 5078 states and 6024 transitions. [2020-07-17 13:17:25,416 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 13:17:25,416 INFO L276 IsEmpty]: Start isEmpty. Operand 5078 states and 6024 transitions. [2020-07-17 13:17:25,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2020-07-17 13:17:25,429 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:17:25,430 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] [2020-07-17 13:17:25,430 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-07-17 13:17:25,430 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:17:25,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:17:25,431 INFO L82 PathProgramCache]: Analyzing trace with hash 1741885973, now seen corresponding path program 1 times [2020-07-17 13:17:25,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:17:25,431 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [231290903] [2020-07-17 13:17:25,431 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:17:25,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:25,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:25,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:17:25,557 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:17:25,561 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [231290903] [2020-07-17 13:17:25,561 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:17:25,561 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-17 13:17:25,561 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908404710] [2020-07-17 13:17:25,562 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 13:17:25,562 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:17:25,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 13:17:25,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-17 13:17:25,563 INFO L87 Difference]: Start difference. First operand 5078 states and 6024 transitions. Second operand 5 states. [2020-07-17 13:17:26,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:17:26,593 INFO L93 Difference]: Finished difference Result 12400 states and 15021 transitions. [2020-07-17 13:17:26,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-17 13:17:26,593 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 266 [2020-07-17 13:17:26,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:17:26,612 INFO L225 Difference]: With dead ends: 12400 [2020-07-17 13:17:26,613 INFO L226 Difference]: Without dead ends: 7482 [2020-07-17 13:17:26,625 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-17 13:17:26,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7482 states. [2020-07-17 13:17:27,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7482 to 5835. [2020-07-17 13:17:27,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5835 states. [2020-07-17 13:17:27,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5835 states to 5835 states and 6908 transitions. [2020-07-17 13:17:27,107 INFO L78 Accepts]: Start accepts. Automaton has 5835 states and 6908 transitions. Word has length 266 [2020-07-17 13:17:27,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:17:27,108 INFO L479 AbstractCegarLoop]: Abstraction has 5835 states and 6908 transitions. [2020-07-17 13:17:27,108 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 13:17:27,108 INFO L276 IsEmpty]: Start isEmpty. Operand 5835 states and 6908 transitions. [2020-07-17 13:17:27,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-07-17 13:17:27,121 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:17:27,122 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] [2020-07-17 13:17:27,122 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-07-17 13:17:27,122 INFO L427 AbstractCegarLoop]: === Iteration 16 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:17:27,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:17:27,123 INFO L82 PathProgramCache]: Analyzing trace with hash -625071199, now seen corresponding path program 2 times [2020-07-17 13:17:27,123 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:17:27,123 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1877257075] [2020-07-17 13:17:27,123 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:17:27,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:27,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:27,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:17:27,333 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:17:27,333 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1877257075] [2020-07-17 13:17:27,333 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:17:27,334 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-17 13:17:27,334 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694134737] [2020-07-17 13:17:27,334 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 13:17:27,335 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:17:27,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 13:17:27,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-17 13:17:27,335 INFO L87 Difference]: Start difference. First operand 5835 states and 6908 transitions. Second operand 5 states. [2020-07-17 13:17:28,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:17:28,100 INFO L93 Difference]: Finished difference Result 9920 states and 11683 transitions. [2020-07-17 13:17:28,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-17 13:17:28,100 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 269 [2020-07-17 13:17:28,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:17:28,117 INFO L225 Difference]: With dead ends: 9920 [2020-07-17 13:17:28,118 INFO L226 Difference]: Without dead ends: 6999 [2020-07-17 13:17:28,127 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-17 13:17:28,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6999 states. [2020-07-17 13:17:28,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6999 to 5835. [2020-07-17 13:17:28,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5835 states. [2020-07-17 13:17:28,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5835 states to 5835 states and 6908 transitions. [2020-07-17 13:17:28,841 INFO L78 Accepts]: Start accepts. Automaton has 5835 states and 6908 transitions. Word has length 269 [2020-07-17 13:17:28,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:17:28,841 INFO L479 AbstractCegarLoop]: Abstraction has 5835 states and 6908 transitions. [2020-07-17 13:17:28,841 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 13:17:28,842 INFO L276 IsEmpty]: Start isEmpty. Operand 5835 states and 6908 transitions. [2020-07-17 13:17:28,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-07-17 13:17:28,855 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:17:28,855 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] [2020-07-17 13:17:28,856 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-07-17 13:17:28,856 INFO L427 AbstractCegarLoop]: === Iteration 17 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:17:28,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:17:28,856 INFO L82 PathProgramCache]: Analyzing trace with hash -555087791, now seen corresponding path program 1 times [2020-07-17 13:17:28,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:17:28,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1018507957] [2020-07-17 13:17:28,857 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:17:28,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:28,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:28,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:17:28,957 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:17:28,957 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1018507957] [2020-07-17 13:17:28,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:17:28,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 13:17:28,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013838754] [2020-07-17 13:17:28,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 13:17:28,958 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:17:28,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 13:17:28,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 13:17:28,959 INFO L87 Difference]: Start difference. First operand 5835 states and 6908 transitions. Second operand 4 states. [2020-07-17 13:17:30,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:17:30,148 INFO L93 Difference]: Finished difference Result 12249 states and 14602 transitions. [2020-07-17 13:17:30,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-17 13:17:30,149 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 269 [2020-07-17 13:17:30,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:17:30,168 INFO L225 Difference]: With dead ends: 12249 [2020-07-17 13:17:30,169 INFO L226 Difference]: Without dead ends: 9324 [2020-07-17 13:17:30,178 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-17 13:17:30,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9324 states. [2020-07-17 13:17:30,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9324 to 5907. [2020-07-17 13:17:30,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5907 states. [2020-07-17 13:17:30,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5907 states to 5907 states and 6996 transitions. [2020-07-17 13:17:30,638 INFO L78 Accepts]: Start accepts. Automaton has 5907 states and 6996 transitions. Word has length 269 [2020-07-17 13:17:30,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:17:30,639 INFO L479 AbstractCegarLoop]: Abstraction has 5907 states and 6996 transitions. [2020-07-17 13:17:30,639 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 13:17:30,639 INFO L276 IsEmpty]: Start isEmpty. Operand 5907 states and 6996 transitions. [2020-07-17 13:17:30,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-07-17 13:17:30,651 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:17:30,651 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] [2020-07-17 13:17:30,652 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-07-17 13:17:30,652 INFO L427 AbstractCegarLoop]: === Iteration 18 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:17:30,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:17:30,653 INFO L82 PathProgramCache]: Analyzing trace with hash 1985209329, now seen corresponding path program 3 times [2020-07-17 13:17:30,653 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:17:30,653 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1889156228] [2020-07-17 13:17:30,653 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:17:30,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:30,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:30,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:17:30,783 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:17:30,784 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1889156228] [2020-07-17 13:17:30,784 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:17:30,784 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-17 13:17:30,784 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393576478] [2020-07-17 13:17:30,785 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 13:17:30,785 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:17:30,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 13:17:30,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-17 13:17:30,786 INFO L87 Difference]: Start difference. First operand 5907 states and 6996 transitions. Second operand 5 states. [2020-07-17 13:17:31,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:17:31,883 INFO L93 Difference]: Finished difference Result 9604 states and 11323 transitions. [2020-07-17 13:17:31,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-17 13:17:31,883 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 269 [2020-07-17 13:17:31,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:17:31,897 INFO L225 Difference]: With dead ends: 9604 [2020-07-17 13:17:31,897 INFO L226 Difference]: Without dead ends: 6611 [2020-07-17 13:17:31,906 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 108 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-17 13:17:31,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6611 states. [2020-07-17 13:17:32,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6611 to 5987. [2020-07-17 13:17:32,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5987 states. [2020-07-17 13:17:32,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5987 states to 5987 states and 7084 transitions. [2020-07-17 13:17:32,401 INFO L78 Accepts]: Start accepts. Automaton has 5987 states and 7084 transitions. Word has length 269 [2020-07-17 13:17:32,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:17:32,401 INFO L479 AbstractCegarLoop]: Abstraction has 5987 states and 7084 transitions. [2020-07-17 13:17:32,401 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 13:17:32,401 INFO L276 IsEmpty]: Start isEmpty. Operand 5987 states and 7084 transitions. [2020-07-17 13:17:32,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2020-07-17 13:17:32,412 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:17:32,412 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] [2020-07-17 13:17:32,412 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-07-17 13:17:32,412 INFO L427 AbstractCegarLoop]: === Iteration 19 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:17:32,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:17:32,413 INFO L82 PathProgramCache]: Analyzing trace with hash -1391566917, now seen corresponding path program 1 times [2020-07-17 13:17:32,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:17:32,413 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [587458168] [2020-07-17 13:17:32,413 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:17:32,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:32,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:32,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:17:32,519 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:17:32,519 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [587458168] [2020-07-17 13:17:32,520 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:17:32,520 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 13:17:32,520 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509406644] [2020-07-17 13:17:32,520 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 13:17:32,521 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:17:32,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 13:17:32,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 13:17:32,521 INFO L87 Difference]: Start difference. First operand 5987 states and 7084 transitions. Second operand 3 states. [2020-07-17 13:17:32,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:17:32,993 INFO L93 Difference]: Finished difference Result 11173 states and 13253 transitions. [2020-07-17 13:17:32,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 13:17:32,994 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 271 [2020-07-17 13:17:32,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:17:33,009 INFO L225 Difference]: With dead ends: 11173 [2020-07-17 13:17:33,010 INFO L226 Difference]: Without dead ends: 6797 [2020-07-17 13:17:33,020 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 13:17:33,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6797 states. [2020-07-17 13:17:33,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6797 to 6797. [2020-07-17 13:17:33,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6797 states. [2020-07-17 13:17:33,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6797 states to 6797 states and 8036 transitions. [2020-07-17 13:17:33,493 INFO L78 Accepts]: Start accepts. Automaton has 6797 states and 8036 transitions. Word has length 271 [2020-07-17 13:17:33,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:17:33,494 INFO L479 AbstractCegarLoop]: Abstraction has 6797 states and 8036 transitions. [2020-07-17 13:17:33,494 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 13:17:33,494 INFO L276 IsEmpty]: Start isEmpty. Operand 6797 states and 8036 transitions. [2020-07-17 13:17:33,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2020-07-17 13:17:33,503 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:17:33,503 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] [2020-07-17 13:17:33,504 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-07-17 13:17:33,504 INFO L427 AbstractCegarLoop]: === Iteration 20 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:17:33,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:17:33,504 INFO L82 PathProgramCache]: Analyzing trace with hash -1703791530, now seen corresponding path program 1 times [2020-07-17 13:17:33,505 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:17:33,505 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [985862782] [2020-07-17 13:17:33,505 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:17:33,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 13:17:33,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 13:17:33,659 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:17:33,659 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-17 13:17:33,659 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 13:17:33,660 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-07-17 13:17:33,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 01:17:33 BoogieIcfgContainer [2020-07-17 13:17:33,693 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 13:17:33,696 INFO L168 Benchmark]: Toolchain (without parser) took 21136.24 ms. Allocated memory was 137.9 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 102.7 MB in the beginning and 640.7 MB in the end (delta: -538.0 MB). Peak memory consumption was 640.0 MB. Max. memory is 7.1 GB. [2020-07-17 13:17:33,697 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 137.9 MB. Free memory is still 120.9 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-17 13:17:33,697 INFO L168 Benchmark]: CACSL2BoogieTranslator took 505.90 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 102.2 MB in the beginning and 180.4 MB in the end (delta: -78.2 MB). Peak memory consumption was 30.0 MB. Max. memory is 7.1 GB. [2020-07-17 13:17:33,698 INFO L168 Benchmark]: Boogie Preprocessor took 54.92 ms. Allocated memory is still 202.4 MB. Free memory was 180.4 MB in the beginning and 176.9 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. [2020-07-17 13:17:33,699 INFO L168 Benchmark]: RCFGBuilder took 1035.62 ms. Allocated memory is still 202.4 MB. Free memory was 176.9 MB in the beginning and 113.6 MB in the end (delta: 63.2 MB). Peak memory consumption was 63.2 MB. Max. memory is 7.1 GB. [2020-07-17 13:17:33,699 INFO L168 Benchmark]: TraceAbstraction took 19532.16 ms. Allocated memory was 202.4 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 112.6 MB in the beginning and 640.7 MB in the end (delta: -528.1 MB). Peak memory consumption was 585.5 MB. Max. memory is 7.1 GB. [2020-07-17 13:17:33,702 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 137.9 MB. Free memory is still 120.9 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 505.90 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 102.2 MB in the beginning and 180.4 MB in the end (delta: -78.2 MB). Peak memory consumption was 30.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 54.92 ms. Allocated memory is still 202.4 MB. Free memory was 180.4 MB in the beginning and 176.9 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1035.62 ms. Allocated memory is still 202.4 MB. Free memory was 176.9 MB in the beginning and 113.6 MB in the end (delta: 63.2 MB). Peak memory consumption was 63.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 19532.16 ms. Allocated memory was 202.4 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 112.6 MB in the beginning and 640.7 MB in the end (delta: -528.1 MB). Peak memory consumption was 585.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 543]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L548] int s ; [L552] s = 12292 [L553] CALL ssl3_connect(12292) [L11] int s__info_callback = __VERIFIER_nondet_int() ; [L12] int s__in_handshake = __VERIFIER_nondet_int() ; [L13] int s__state ; [L14] int s__new_session ; [L15] int s__server ; [L16] int s__version = __VERIFIER_nondet_int() ; [L17] int s__type ; [L18] int s__init_num ; [L19] int s__bbio = __VERIFIER_nondet_int() ; [L20] int s__wbio = __VERIFIER_nondet_int() ; [L21] int s__hit = __VERIFIER_nondet_int() ; [L22] int s__rwstate ; [L23] int s__init_buf___0 = 1; [L24] int s__debug = __VERIFIER_nondet_int() ; [L25] int s__shutdown ; [L26] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L27] int s__ctx__stats__sess_connect_renegotiate = __VERIFIER_nondet_int() ; [L28] int s__ctx__stats__sess_connect = __VERIFIER_nondet_int() ; [L29] int s__ctx__stats__sess_hit = __VERIFIER_nondet_int() ; [L30] int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_int() ; [L31] int s__s3__change_cipher_spec ; [L32] int s__s3__flags ; [L33] int s__s3__delay_buf_pop_ret ; [L34] int s__s3__tmp__cert_req = __VERIFIER_nondet_int() ; [L35] int s__s3__tmp__new_compression = __VERIFIER_nondet_int() ; [L36] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int() ; [L37] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L38] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() ; [L39] int s__s3__tmp__next_state___0 ; [L40] int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int() ; [L41] int s__session__cipher ; [L42] int s__session__compress_meth ; [L43] int buf ; [L44] unsigned long tmp ; [L45] unsigned long l ; [L46] int num1 ; [L47] int cb ; [L48] int ret ; [L49] int new_state ; [L50] int state ; [L51] int skip ; [L52] int tmp___0 ; [L53] int tmp___1 = __VERIFIER_nondet_int() ; [L54] int tmp___2 = __VERIFIER_nondet_int() ; [L55] int tmp___3 = __VERIFIER_nondet_int() ; [L56] int tmp___4 = __VERIFIER_nondet_int() ; [L57] int tmp___5 = __VERIFIER_nondet_int() ; [L58] int tmp___6 = __VERIFIER_nondet_int() ; [L59] int tmp___7 = __VERIFIER_nondet_int() ; [L60] int tmp___8 = __VERIFIER_nondet_int() ; [L61] int tmp___9 = __VERIFIER_nondet_int() ; [L62] int blastFlag ; [L63] int __cil_tmp55 ; [L64] 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 ; [L76] s__state = initial_state [L77] blastFlag = 0 [L78] tmp = __VERIFIER_nondet_int() [L79] cb = 0 [L80] ret = -1 [L81] skip = 0 [L82] tmp___0 = 0 [L83] COND TRUE s__info_callback != 0 [L84] cb = s__info_callback [L90] s__in_handshake ++ [L91] COND FALSE !(tmp___1 - 12288) [L97] COND TRUE 1 [L99] state = s__state [L100] COND TRUE s__state == 12292 [L202] s__new_session = 1 [L203] s__state = 4096 [L204] s__ctx__stats__sess_connect_renegotiate ++ [L209] s__server = 0 [L210] COND TRUE cb != 0 [L214] __cil_tmp55 = s__version - 65280 [L215] COND FALSE !(__cil_tmp55 != 768) [L220] s__type = 4096 [L221] COND FALSE !(s__init_buf___0 == 0) [L233] COND FALSE !(! tmp___4) [L237] COND FALSE !(! tmp___5) [L241] s__state = 4368 [L242] s__ctx__stats__sess_connect ++ [L243] s__init_num = 0 [L515] COND FALSE !(! s__s3__tmp__reuse_message) [L532] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 4096) [L109] COND FALSE !(s__state == 20480) [L112] COND FALSE !(s__state == 4099) [L115] COND TRUE s__state == 4368 [L247] s__shutdown = 0 [L248] ret = __VERIFIER_nondet_int() [L249] COND TRUE blastFlag == 0 [L250] blastFlag = 1 [L252] COND FALSE !(ret <= 0) [L255] s__state = 4384 [L256] s__init_num = 0 [L257] COND TRUE s__bbio != s__wbio [L515] COND FALSE !(! s__s3__tmp__reuse_message) [L532] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 4096) [L109] COND FALSE !(s__state == 20480) [L112] COND FALSE !(s__state == 4099) [L115] COND FALSE !(s__state == 4368) [L118] COND FALSE !(s__state == 4369) [L121] COND TRUE s__state == 4384 [L263] ret = __VERIFIER_nondet_int() [L264] COND TRUE blastFlag == 1 [L265] blastFlag = 2 [L267] COND FALSE !(ret <= 0) [L270] COND FALSE !(\read(s__hit)) [L273] s__state = 4400 [L275] s__init_num = 0 [L515] COND FALSE !(! s__s3__tmp__reuse_message) [L532] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 4096) [L109] COND FALSE !(s__state == 20480) [L112] COND FALSE !(s__state == 4099) [L115] COND FALSE !(s__state == 4368) [L118] COND FALSE !(s__state == 4369) [L121] COND FALSE !(s__state == 4384) [L124] COND FALSE !(s__state == 4385) [L127] COND TRUE s__state == 4400 [L279] COND FALSE !(s__s3__tmp__new_cipher__algorithms - 256) [L282] ret = __VERIFIER_nondet_int() [L283] COND TRUE blastFlag == 2 [L284] blastFlag = 3 [L286] COND FALSE !(ret <= 0) [L290] s__state = 4416 [L291] s__init_num = 0 [L515] COND FALSE !(! s__s3__tmp__reuse_message) [L532] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 4096) [L109] COND FALSE !(s__state == 20480) [L112] COND FALSE !(s__state == 4099) [L115] COND FALSE !(s__state == 4368) [L118] COND FALSE !(s__state == 4369) [L121] COND FALSE !(s__state == 4384) [L124] COND FALSE !(s__state == 4385) [L127] COND FALSE !(s__state == 4400) [L130] COND FALSE !(s__state == 4401) [L133] COND TRUE s__state == 4416 [L295] ret = __VERIFIER_nondet_int() [L296] COND TRUE blastFlag == 3 [L297] blastFlag = 4 [L299] COND FALSE !(ret <= 0) [L302] s__state = 4432 [L303] s__init_num = 0 [L304] COND FALSE !(! tmp___6) [L515] COND FALSE !(! s__s3__tmp__reuse_message) [L532] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 4096) [L109] COND FALSE !(s__state == 20480) [L112] COND FALSE !(s__state == 4099) [L115] COND FALSE !(s__state == 4368) [L118] COND FALSE !(s__state == 4369) [L121] COND FALSE !(s__state == 4384) [L124] COND FALSE !(s__state == 4385) [L127] COND FALSE !(s__state == 4400) [L130] COND FALSE !(s__state == 4401) [L133] COND FALSE !(s__state == 4416) [L136] COND FALSE !(s__state == 4417) [L139] COND TRUE s__state == 4432 [L311] ret = __VERIFIER_nondet_int() [L312] COND TRUE blastFlag == 4 [L543] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 383 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 19.4s, OverallIterations: 20, TraceHistogramMax: 6, AutomataDifference: 9.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 8517 SDtfs, 5172 SDslu, 8471 SDs, 0 SdLazy, 1979 SolverSat, 270 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 640 GetRequests, 586 SyntacticMatches, 13 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6797occurred 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: 5.7s AutomataMinimizationTime, 19 MinimizatonAttempts, 7365 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...