/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 0.1.25-86f66a4 [2020-07-07 13:20:24,204 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 13:20:24,207 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 13:20:24,225 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 13:20:24,225 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 13:20:24,226 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 13:20:24,228 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 13:20:24,230 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 13:20:24,232 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 13:20:24,233 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 13:20:24,234 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 13:20:24,235 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 13:20:24,235 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 13:20:24,236 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 13:20:24,237 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 13:20:24,238 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 13:20:24,239 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 13:20:24,240 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 13:20:24,242 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 13:20:24,244 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 13:20:24,246 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 13:20:24,247 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 13:20:24,248 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 13:20:24,249 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 13:20:24,252 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-07 13:20:24,260 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 13:20:24,261 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 13:20:24,262 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 13:20:24,263 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 13:20:24,273 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 13:20:24,273 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 13:20:24,274 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 13:20:24,275 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 13:20:24,275 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 13:20:24,275 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 13:20:24,275 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 13:20:24,276 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 13:20:24,276 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 13:20:24,276 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 13:20:24,276 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 13:20:24,276 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 13:20:24,277 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 13:20:24,277 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 13:20:24,277 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 13:20:24,277 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 13:20:24,278 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 13:20:24,278 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 13:20:24,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 13:20:24,278 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 13:20:24,278 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 13:20:24,279 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 13:20:24,279 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 13:20:24,575 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 13:20:24,589 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 13:20:24,592 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 13:20:24,594 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 13:20:24,595 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 13:20:24,595 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_1.cil-2.c [2020-07-07 13:20:24,668 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e54906f20/944b79c294534061a6d5ac4102b9c3dc/FLAGfad222fce [2020-07-07 13:20:25,204 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 13:20:25,205 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ssh-simplified/s3_clnt_1.cil-2.c [2020-07-07 13:20:25,216 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e54906f20/944b79c294534061a6d5ac4102b9c3dc/FLAGfad222fce [2020-07-07 13:20:25,481 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e54906f20/944b79c294534061a6d5ac4102b9c3dc [2020-07-07 13:20:25,490 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 13:20:25,493 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 13:20:25,494 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 13:20:25,494 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 13:20:25,498 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 13:20:25,499 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:20:25" (1/1) ... [2020-07-07 13:20:25,502 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65c2edf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:20:25, skipping insertion in model container [2020-07-07 13:20:25,503 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:20:25" (1/1) ... [2020-07-07 13:20:25,511 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 13:20:25,566 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 13:20:25,827 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:20:25,832 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 13:20:26,009 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:20:26,022 INFO L208 MainTranslator]: Completed translation [2020-07-07 13:20:26,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:20:26 WrapperNode [2020-07-07 13:20:26,023 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 13:20:26,023 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 13:20:26,023 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 13:20:26,023 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 13:20:26,034 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:20:26" (1/1) ... [2020-07-07 13:20:26,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:20:26" (1/1) ... [2020-07-07 13:20:26,043 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:20:26" (1/1) ... [2020-07-07 13:20:26,043 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:20:26" (1/1) ... [2020-07-07 13:20:26,056 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:20:26" (1/1) ... [2020-07-07 13:20:26,069 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:20:26" (1/1) ... [2020-07-07 13:20:26,072 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:20:26" (1/1) ... [2020-07-07 13:20:26,077 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 13:20:26,078 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 13:20:26,078 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 13:20:26,078 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 13:20:26,079 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:20:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 13:20:26,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 13:20:26,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 13:20:26,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-07-07 13:20:26,157 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 13:20:26,157 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 13:20:26,157 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-07-07 13:20:26,157 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 13:20:26,158 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-07-07 13:20:26,158 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-07-07 13:20:26,158 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 13:20:26,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 13:20:26,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 13:20:26,317 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-07 13:20:27,071 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-07-07 13:20:27,071 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-07-07 13:20:27,095 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 13:20:27,095 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-07 13:20:27,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:20:27 BoogieIcfgContainer [2020-07-07 13:20:27,103 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 13:20:27,105 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 13:20:27,105 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 13:20:27,108 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 13:20:27,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 01:20:25" (1/3) ... [2020-07-07 13:20:27,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e211226 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:20:27, skipping insertion in model container [2020-07-07 13:20:27,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:20:26" (2/3) ... [2020-07-07 13:20:27,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e211226 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:20:27, skipping insertion in model container [2020-07-07 13:20:27,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:20:27" (3/3) ... [2020-07-07 13:20:27,113 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_1.cil-2.c [2020-07-07 13:20:27,125 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 13:20:27,134 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 13:20:27,150 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 13:20:27,175 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 13:20:27,176 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 13:20:27,176 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 13:20:27,176 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 13:20:27,176 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 13:20:27,177 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 13:20:27,177 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 13:20:27,177 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 13:20:27,201 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states. [2020-07-07 13:20:27,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-07-07 13:20:27,225 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:20:27,227 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] [2020-07-07 13:20:27,227 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:20:27,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:20:27,234 INFO L82 PathProgramCache]: Analyzing trace with hash -1836119895, now seen corresponding path program 1 times [2020-07-07 13:20:27,244 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:20:27,245 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1168413361] [2020-07-07 13:20:27,245 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:20:27,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:27,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:27,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:20:27,771 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:20:27,773 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1168413361] [2020-07-07 13:20:27,775 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:20:27,776 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 13:20:27,776 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803903407] [2020-07-07 13:20:27,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 13:20:27,783 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:20:27,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 13:20:27,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-07 13:20:27,802 INFO L87 Difference]: Start difference. First operand 383 states. Second operand 5 states. [2020-07-07 13:20:28,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:20:28,303 INFO L93 Difference]: Finished difference Result 686 states and 901 transitions. [2020-07-07 13:20:28,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 13:20:28,305 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 160 [2020-07-07 13:20:28,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:20:28,343 INFO L225 Difference]: With dead ends: 686 [2020-07-07 13:20:28,343 INFO L226 Difference]: Without dead ends: 362 [2020-07-07 13:20:28,357 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-07 13:20:28,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2020-07-07 13:20:28,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 347. [2020-07-07 13:20:28,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2020-07-07 13:20:28,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 406 transitions. [2020-07-07 13:20:28,495 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 406 transitions. Word has length 160 [2020-07-07 13:20:28,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:20:28,500 INFO L479 AbstractCegarLoop]: Abstraction has 347 states and 406 transitions. [2020-07-07 13:20:28,500 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 13:20:28,500 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 406 transitions. [2020-07-07 13:20:28,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-07-07 13:20:28,514 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:20:28,515 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] [2020-07-07 13:20:28,515 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 13:20:28,516 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:20:28,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:20:28,516 INFO L82 PathProgramCache]: Analyzing trace with hash 1755332249, now seen corresponding path program 1 times [2020-07-07 13:20:28,517 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:20:28,517 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1294147255] [2020-07-07 13:20:28,517 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:20:28,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:28,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:28,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:20:28,791 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:20:28,791 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1294147255] [2020-07-07 13:20:28,792 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:20:28,792 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 13:20:28,792 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533876950] [2020-07-07 13:20:28,793 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 13:20:28,794 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:20:28,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 13:20:28,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-07 13:20:28,795 INFO L87 Difference]: Start difference. First operand 347 states and 406 transitions. Second operand 5 states. [2020-07-07 13:20:29,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:20:29,095 INFO L93 Difference]: Finished difference Result 607 states and 757 transitions. [2020-07-07 13:20:29,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 13:20:29,096 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 179 [2020-07-07 13:20:29,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:20:29,100 INFO L225 Difference]: With dead ends: 607 [2020-07-07 13:20:29,100 INFO L226 Difference]: Without dead ends: 405 [2020-07-07 13:20:29,102 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-07 13:20:29,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2020-07-07 13:20:29,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 360. [2020-07-07 13:20:29,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-07-07 13:20:29,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 424 transitions. [2020-07-07 13:20:29,141 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 424 transitions. Word has length 179 [2020-07-07 13:20:29,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:20:29,142 INFO L479 AbstractCegarLoop]: Abstraction has 360 states and 424 transitions. [2020-07-07 13:20:29,142 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 13:20:29,142 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 424 transitions. [2020-07-07 13:20:29,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-07-07 13:20:29,145 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:20:29,145 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] [2020-07-07 13:20:29,146 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 13:20:29,146 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:20:29,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:20:29,146 INFO L82 PathProgramCache]: Analyzing trace with hash 933719357, now seen corresponding path program 1 times [2020-07-07 13:20:29,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:20:29,147 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [719187452] [2020-07-07 13:20:29,147 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:20:29,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:29,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:29,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:20:29,390 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:20:29,391 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [719187452] [2020-07-07 13:20:29,391 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:20:29,392 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:20:29,392 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271153253] [2020-07-07 13:20:29,393 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:20:29,393 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:20:29,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:20:29,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:20:29,395 INFO L87 Difference]: Start difference. First operand 360 states and 424 transitions. Second operand 3 states. [2020-07-07 13:20:29,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:20:29,648 INFO L93 Difference]: Finished difference Result 603 states and 737 transitions. [2020-07-07 13:20:29,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:20:29,649 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 183 [2020-07-07 13:20:29,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:20:29,656 INFO L225 Difference]: With dead ends: 603 [2020-07-07 13:20:29,656 INFO L226 Difference]: Without dead ends: 388 [2020-07-07 13:20:29,659 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:20:29,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2020-07-07 13:20:29,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 378. [2020-07-07 13:20:29,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 378 states. [2020-07-07 13:20:29,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 447 transitions. [2020-07-07 13:20:29,738 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 447 transitions. Word has length 183 [2020-07-07 13:20:29,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:20:29,739 INFO L479 AbstractCegarLoop]: Abstraction has 378 states and 447 transitions. [2020-07-07 13:20:29,739 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:20:29,739 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 447 transitions. [2020-07-07 13:20:29,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-07-07 13:20:29,744 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:20:29,745 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:20:29,745 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 13:20:29,746 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:20:29,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:20:29,747 INFO L82 PathProgramCache]: Analyzing trace with hash 787271153, now seen corresponding path program 1 times [2020-07-07 13:20:29,747 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:20:29,748 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1703867765] [2020-07-07 13:20:29,748 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:20:29,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:29,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:29,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:20:29,913 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:20:29,914 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1703867765] [2020-07-07 13:20:29,914 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:20:29,914 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:20:29,915 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898634747] [2020-07-07 13:20:29,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:20:29,916 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:20:29,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:20:29,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:20:29,917 INFO L87 Difference]: Start difference. First operand 378 states and 447 transitions. Second operand 3 states. [2020-07-07 13:20:30,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:20:30,025 INFO L93 Difference]: Finished difference Result 837 states and 1037 transitions. [2020-07-07 13:20:30,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:20:30,026 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2020-07-07 13:20:30,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:20:30,031 INFO L225 Difference]: With dead ends: 837 [2020-07-07 13:20:30,031 INFO L226 Difference]: Without dead ends: 604 [2020-07-07 13:20:30,033 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:20:30,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2020-07-07 13:20:30,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 604. [2020-07-07 13:20:30,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 604 states. [2020-07-07 13:20:30,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 734 transitions. [2020-07-07 13:20:30,109 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 734 transitions. Word has length 190 [2020-07-07 13:20:30,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:20:30,110 INFO L479 AbstractCegarLoop]: Abstraction has 604 states and 734 transitions. [2020-07-07 13:20:30,110 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:20:30,111 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 734 transitions. [2020-07-07 13:20:30,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-07-07 13:20:30,114 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:20:30,114 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] [2020-07-07 13:20:30,114 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 13:20:30,114 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:20:30,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:20:30,115 INFO L82 PathProgramCache]: Analyzing trace with hash -1378664763, now seen corresponding path program 1 times [2020-07-07 13:20:30,115 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:20:30,116 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1546213191] [2020-07-07 13:20:30,116 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:20:30,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:30,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:30,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:20:30,207 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:20:30,208 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1546213191] [2020-07-07 13:20:30,208 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:20:30,208 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:20:30,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222195013] [2020-07-07 13:20:30,209 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:20:30,209 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:20:30,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:20:30,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:20:30,210 INFO L87 Difference]: Start difference. First operand 604 states and 734 transitions. Second operand 3 states. [2020-07-07 13:20:30,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:20:30,476 INFO L93 Difference]: Finished difference Result 1124 states and 1405 transitions. [2020-07-07 13:20:30,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:20:30,477 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 203 [2020-07-07 13:20:30,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:20:30,483 INFO L225 Difference]: With dead ends: 1124 [2020-07-07 13:20:30,484 INFO L226 Difference]: Without dead ends: 665 [2020-07-07 13:20:30,486 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:20:30,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2020-07-07 13:20:30,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 644. [2020-07-07 13:20:30,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 644 states. [2020-07-07 13:20:30,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 784 transitions. [2020-07-07 13:20:30,573 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 784 transitions. Word has length 203 [2020-07-07 13:20:30,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:20:30,574 INFO L479 AbstractCegarLoop]: Abstraction has 644 states and 784 transitions. [2020-07-07 13:20:30,574 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:20:30,574 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 784 transitions. [2020-07-07 13:20:30,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-07-07 13:20:30,581 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:20:30,582 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] [2020-07-07 13:20:30,582 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 13:20:30,583 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:20:30,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:20:30,583 INFO L82 PathProgramCache]: Analyzing trace with hash -2019314839, now seen corresponding path program 1 times [2020-07-07 13:20:30,584 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:20:30,584 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1639046023] [2020-07-07 13:20:30,584 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:20:30,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:30,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:30,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:20:30,811 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:20:30,812 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1639046023] [2020-07-07 13:20:30,812 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:20:30,812 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:20:30,813 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481453113] [2020-07-07 13:20:30,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:20:30,814 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:20:30,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:20:30,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:20:30,815 INFO L87 Difference]: Start difference. First operand 644 states and 784 transitions. Second operand 3 states. [2020-07-07 13:20:30,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:20:30,987 INFO L93 Difference]: Finished difference Result 1572 states and 1952 transitions. [2020-07-07 13:20:30,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:20:30,988 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 210 [2020-07-07 13:20:30,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:20:30,995 INFO L225 Difference]: With dead ends: 1572 [2020-07-07 13:20:30,996 INFO L226 Difference]: Without dead ends: 1073 [2020-07-07 13:20:30,999 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:20:31,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2020-07-07 13:20:31,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 1071. [2020-07-07 13:20:31,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1071 states. [2020-07-07 13:20:31,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1308 transitions. [2020-07-07 13:20:31,164 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1308 transitions. Word has length 210 [2020-07-07 13:20:31,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:20:31,164 INFO L479 AbstractCegarLoop]: Abstraction has 1071 states and 1308 transitions. [2020-07-07 13:20:31,164 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:20:31,165 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1308 transitions. [2020-07-07 13:20:31,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-07-07 13:20:31,170 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:20:31,171 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] [2020-07-07 13:20:31,171 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-07 13:20:31,171 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:20:31,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:20:31,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1170821308, now seen corresponding path program 1 times [2020-07-07 13:20:31,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:20:31,173 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [501107304] [2020-07-07 13:20:31,173 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:20:31,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:31,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:31,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:20:31,322 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:20:31,322 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [501107304] [2020-07-07 13:20:31,323 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:20:31,323 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:20:31,323 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899474178] [2020-07-07 13:20:31,324 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:20:31,325 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:20:31,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:20:31,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:20:31,326 INFO L87 Difference]: Start difference. First operand 1071 states and 1308 transitions. Second operand 3 states. [2020-07-07 13:20:31,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:20:31,537 INFO L93 Difference]: Finished difference Result 2015 states and 2489 transitions. [2020-07-07 13:20:31,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:20:31,538 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 211 [2020-07-07 13:20:31,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:20:31,548 INFO L225 Difference]: With dead ends: 2015 [2020-07-07 13:20:31,548 INFO L226 Difference]: Without dead ends: 1089 [2020-07-07 13:20:31,552 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:20:31,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2020-07-07 13:20:31,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 1079. [2020-07-07 13:20:31,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1079 states. [2020-07-07 13:20:31,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1312 transitions. [2020-07-07 13:20:31,788 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1312 transitions. Word has length 211 [2020-07-07 13:20:31,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:20:31,789 INFO L479 AbstractCegarLoop]: Abstraction has 1079 states and 1312 transitions. [2020-07-07 13:20:31,789 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:20:31,790 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1312 transitions. [2020-07-07 13:20:31,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-07-07 13:20:31,798 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:20:31,798 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] [2020-07-07 13:20:31,799 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-07 13:20:31,799 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:20:31,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:20:31,800 INFO L82 PathProgramCache]: Analyzing trace with hash 1492439948, now seen corresponding path program 1 times [2020-07-07 13:20:31,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:20:31,802 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [292091665] [2020-07-07 13:20:31,803 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:20:31,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:31,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:31,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:20:31,937 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:20:31,937 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [292091665] [2020-07-07 13:20:31,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:20:31,938 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:20:31,938 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716017901] [2020-07-07 13:20:31,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:20:31,939 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:20:31,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:20:31,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:20:31,940 INFO L87 Difference]: Start difference. First operand 1079 states and 1312 transitions. Second operand 3 states. [2020-07-07 13:20:32,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:20:32,198 INFO L93 Difference]: Finished difference Result 2933 states and 3616 transitions. [2020-07-07 13:20:32,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:20:32,199 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 213 [2020-07-07 13:20:32,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:20:32,211 INFO L225 Difference]: With dead ends: 2933 [2020-07-07 13:20:32,211 INFO L226 Difference]: Without dead ends: 1999 [2020-07-07 13:20:32,214 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:20:32,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1999 states. [2020-07-07 13:20:32,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1999 to 1997. [2020-07-07 13:20:32,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1997 states. [2020-07-07 13:20:32,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1997 states to 1997 states and 2440 transitions. [2020-07-07 13:20:32,503 INFO L78 Accepts]: Start accepts. Automaton has 1997 states and 2440 transitions. Word has length 213 [2020-07-07 13:20:32,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:20:32,504 INFO L479 AbstractCegarLoop]: Abstraction has 1997 states and 2440 transitions. [2020-07-07 13:20:32,504 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:20:32,504 INFO L276 IsEmpty]: Start isEmpty. Operand 1997 states and 2440 transitions. [2020-07-07 13:20:32,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-07-07 13:20:32,509 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:20:32,509 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] [2020-07-07 13:20:32,510 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-07 13:20:32,510 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:20:32,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:20:32,510 INFO L82 PathProgramCache]: Analyzing trace with hash -193739890, now seen corresponding path program 1 times [2020-07-07 13:20:32,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:20:32,511 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1257239734] [2020-07-07 13:20:32,511 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:20:32,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:32,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:32,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:20:32,597 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:20:32,598 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1257239734] [2020-07-07 13:20:32,598 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:20:32,598 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:20:32,598 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676517104] [2020-07-07 13:20:32,599 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:20:32,599 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:20:32,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:20:32,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:20:32,600 INFO L87 Difference]: Start difference. First operand 1997 states and 2440 transitions. Second operand 3 states. [2020-07-07 13:20:32,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:20:32,837 INFO L93 Difference]: Finished difference Result 2948 states and 3610 transitions. [2020-07-07 13:20:32,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:20:32,838 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 213 [2020-07-07 13:20:32,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:20:32,850 INFO L225 Difference]: With dead ends: 2948 [2020-07-07 13:20:32,850 INFO L226 Difference]: Without dead ends: 2014 [2020-07-07 13:20:32,853 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:20:32,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2014 states. [2020-07-07 13:20:33,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2014 to 2012. [2020-07-07 13:20:33,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2012 states. [2020-07-07 13:20:33,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2012 states to 2012 states and 2446 transitions. [2020-07-07 13:20:33,073 INFO L78 Accepts]: Start accepts. Automaton has 2012 states and 2446 transitions. Word has length 213 [2020-07-07 13:20:33,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:20:33,074 INFO L479 AbstractCegarLoop]: Abstraction has 2012 states and 2446 transitions. [2020-07-07 13:20:33,075 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:20:33,075 INFO L276 IsEmpty]: Start isEmpty. Operand 2012 states and 2446 transitions. [2020-07-07 13:20:33,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-07-07 13:20:33,084 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:20:33,084 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] [2020-07-07 13:20:33,085 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-07 13:20:33,085 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:20:33,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:20:33,086 INFO L82 PathProgramCache]: Analyzing trace with hash -792504871, now seen corresponding path program 1 times [2020-07-07 13:20:33,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:20:33,086 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [257431034] [2020-07-07 13:20:33,086 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:20:33,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:33,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:33,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:20:33,232 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:20:33,233 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [257431034] [2020-07-07 13:20:33,233 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:20:33,233 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:20:33,233 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233052102] [2020-07-07 13:20:33,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:20:33,234 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:20:33,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:20:33,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:20:33,235 INFO L87 Difference]: Start difference. First operand 2012 states and 2446 transitions. Second operand 3 states. [2020-07-07 13:20:33,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:20:33,586 INFO L93 Difference]: Finished difference Result 3864 states and 4745 transitions. [2020-07-07 13:20:33,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:20:33,586 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 214 [2020-07-07 13:20:33,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:20:33,604 INFO L225 Difference]: With dead ends: 3864 [2020-07-07 13:20:33,604 INFO L226 Difference]: Without dead ends: 2927 [2020-07-07 13:20:33,608 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:20:33,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2927 states. [2020-07-07 13:20:33,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2927 to 2927. [2020-07-07 13:20:33,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2927 states. [2020-07-07 13:20:33,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2927 states to 2927 states and 3569 transitions. [2020-07-07 13:20:33,894 INFO L78 Accepts]: Start accepts. Automaton has 2927 states and 3569 transitions. Word has length 214 [2020-07-07 13:20:33,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:20:33,894 INFO L479 AbstractCegarLoop]: Abstraction has 2927 states and 3569 transitions. [2020-07-07 13:20:33,895 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:20:33,895 INFO L276 IsEmpty]: Start isEmpty. Operand 2927 states and 3569 transitions. [2020-07-07 13:20:33,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-07-07 13:20:33,902 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:20:33,902 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] [2020-07-07 13:20:33,902 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-07 13:20:33,903 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:20:33,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:20:33,903 INFO L82 PathProgramCache]: Analyzing trace with hash 1362043361, now seen corresponding path program 1 times [2020-07-07 13:20:33,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:20:33,904 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1521619351] [2020-07-07 13:20:33,904 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:20:33,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:33,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:34,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:20:34,040 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:20:34,040 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1521619351] [2020-07-07 13:20:34,040 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:20:34,041 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:20:34,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554294763] [2020-07-07 13:20:34,041 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:20:34,042 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:20:34,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:20:34,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:20:34,043 INFO L87 Difference]: Start difference. First operand 2927 states and 3569 transitions. Second operand 3 states. [2020-07-07 13:20:34,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:20:34,552 INFO L93 Difference]: Finished difference Result 6369 states and 8021 transitions. [2020-07-07 13:20:34,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:20:34,552 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 224 [2020-07-07 13:20:34,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:20:34,572 INFO L225 Difference]: With dead ends: 6369 [2020-07-07 13:20:34,573 INFO L226 Difference]: Without dead ends: 3590 [2020-07-07 13:20:34,580 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:20:34,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3590 states. [2020-07-07 13:20:34,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3590 to 3404. [2020-07-07 13:20:34,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3404 states. [2020-07-07 13:20:34,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3404 states to 3404 states and 4085 transitions. [2020-07-07 13:20:34,875 INFO L78 Accepts]: Start accepts. Automaton has 3404 states and 4085 transitions. Word has length 224 [2020-07-07 13:20:34,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:20:34,876 INFO L479 AbstractCegarLoop]: Abstraction has 3404 states and 4085 transitions. [2020-07-07 13:20:34,876 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:20:34,876 INFO L276 IsEmpty]: Start isEmpty. Operand 3404 states and 4085 transitions. [2020-07-07 13:20:34,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-07-07 13:20:34,884 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:20:34,885 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] [2020-07-07 13:20:34,885 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-07 13:20:34,885 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:20:34,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:20:34,886 INFO L82 PathProgramCache]: Analyzing trace with hash -481557951, now seen corresponding path program 1 times [2020-07-07 13:20:34,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:20:34,887 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1689392176] [2020-07-07 13:20:34,887 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:20:34,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:34,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:35,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:20:35,025 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:20:35,025 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1689392176] [2020-07-07 13:20:35,025 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:20:35,026 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:20:35,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252089547] [2020-07-07 13:20:35,026 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:20:35,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:20:35,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:20:35,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:20:35,027 INFO L87 Difference]: Start difference. First operand 3404 states and 4085 transitions. Second operand 3 states. [2020-07-07 13:20:35,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:20:35,457 INFO L93 Difference]: Finished difference Result 6973 states and 8455 transitions. [2020-07-07 13:20:35,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:20:35,458 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 224 [2020-07-07 13:20:35,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:20:35,477 INFO L225 Difference]: With dead ends: 6973 [2020-07-07 13:20:35,478 INFO L226 Difference]: Without dead ends: 3729 [2020-07-07 13:20:35,487 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:20:35,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3729 states. [2020-07-07 13:20:35,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3729 to 3617. [2020-07-07 13:20:35,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3617 states. [2020-07-07 13:20:35,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3617 states to 3617 states and 4313 transitions. [2020-07-07 13:20:35,866 INFO L78 Accepts]: Start accepts. Automaton has 3617 states and 4313 transitions. Word has length 224 [2020-07-07 13:20:35,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:20:35,867 INFO L479 AbstractCegarLoop]: Abstraction has 3617 states and 4313 transitions. [2020-07-07 13:20:35,867 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:20:35,868 INFO L276 IsEmpty]: Start isEmpty. Operand 3617 states and 4313 transitions. [2020-07-07 13:20:35,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-07-07 13:20:35,884 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:20:35,884 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] [2020-07-07 13:20:35,885 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-07-07 13:20:35,885 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:20:35,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:20:35,886 INFO L82 PathProgramCache]: Analyzing trace with hash -1724843027, now seen corresponding path program 1 times [2020-07-07 13:20:35,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:20:35,887 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [516750143] [2020-07-07 13:20:35,887 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:20:35,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:36,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:36,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:20:36,139 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:20:36,139 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [516750143] [2020-07-07 13:20:36,141 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:20:36,143 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:20:36,144 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888522547] [2020-07-07 13:20:36,144 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:20:36,145 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:20:36,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:20:36,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:20:36,146 INFO L87 Difference]: Start difference. First operand 3617 states and 4313 transitions. Second operand 3 states. [2020-07-07 13:20:36,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:20:36,572 INFO L93 Difference]: Finished difference Result 7074 states and 8479 transitions. [2020-07-07 13:20:36,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:20:36,573 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 239 [2020-07-07 13:20:36,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:20:36,598 INFO L225 Difference]: With dead ends: 7074 [2020-07-07 13:20:36,598 INFO L226 Difference]: Without dead ends: 4762 [2020-07-07 13:20:36,607 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:20:36,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4762 states. [2020-07-07 13:20:36,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4762 to 4762. [2020-07-07 13:20:36,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4762 states. [2020-07-07 13:20:37,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4762 states to 4762 states and 5688 transitions. [2020-07-07 13:20:37,011 INFO L78 Accepts]: Start accepts. Automaton has 4762 states and 5688 transitions. Word has length 239 [2020-07-07 13:20:37,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:20:37,012 INFO L479 AbstractCegarLoop]: Abstraction has 4762 states and 5688 transitions. [2020-07-07 13:20:37,012 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:20:37,012 INFO L276 IsEmpty]: Start isEmpty. Operand 4762 states and 5688 transitions. [2020-07-07 13:20:37,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2020-07-07 13:20:37,023 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:20:37,023 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] [2020-07-07 13:20:37,023 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-07-07 13:20:37,024 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:20:37,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:20:37,024 INFO L82 PathProgramCache]: Analyzing trace with hash -1037157879, now seen corresponding path program 1 times [2020-07-07 13:20:37,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:20:37,025 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1767072123] [2020-07-07 13:20:37,025 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:20:37,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:37,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:37,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:20:37,120 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:20:37,120 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1767072123] [2020-07-07 13:20:37,120 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:20:37,121 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:20:37,121 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414163407] [2020-07-07 13:20:37,121 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:20:37,122 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:20:37,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:20:37,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:20:37,122 INFO L87 Difference]: Start difference. First operand 4762 states and 5688 transitions. Second operand 3 states. [2020-07-07 13:20:37,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:20:37,608 INFO L93 Difference]: Finished difference Result 9788 states and 11817 transitions. [2020-07-07 13:20:37,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:20:37,609 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 247 [2020-07-07 13:20:37,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:20:37,633 INFO L225 Difference]: With dead ends: 9788 [2020-07-07 13:20:37,634 INFO L226 Difference]: Without dead ends: 5186 [2020-07-07 13:20:37,645 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:20:37,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5186 states. [2020-07-07 13:20:38,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5186 to 5078. [2020-07-07 13:20:38,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5078 states. [2020-07-07 13:20:38,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5078 states to 5078 states and 6024 transitions. [2020-07-07 13:20:38,066 INFO L78 Accepts]: Start accepts. Automaton has 5078 states and 6024 transitions. Word has length 247 [2020-07-07 13:20:38,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:20:38,067 INFO L479 AbstractCegarLoop]: Abstraction has 5078 states and 6024 transitions. [2020-07-07 13:20:38,067 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:20:38,067 INFO L276 IsEmpty]: Start isEmpty. Operand 5078 states and 6024 transitions. [2020-07-07 13:20:38,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2020-07-07 13:20:38,139 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:20:38,140 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] [2020-07-07 13:20:38,140 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-07-07 13:20:38,140 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:20:38,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:20:38,141 INFO L82 PathProgramCache]: Analyzing trace with hash 1741885973, now seen corresponding path program 1 times [2020-07-07 13:20:38,141 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:20:38,141 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1782726081] [2020-07-07 13:20:38,141 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:20:38,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:38,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:38,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:20:38,311 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:20:38,311 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1782726081] [2020-07-07 13:20:38,311 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:20:38,312 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 13:20:38,312 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422886511] [2020-07-07 13:20:38,312 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 13:20:38,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:20:38,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 13:20:38,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-07 13:20:38,313 INFO L87 Difference]: Start difference. First operand 5078 states and 6024 transitions. Second operand 5 states. [2020-07-07 13:20:39,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:20:39,155 INFO L93 Difference]: Finished difference Result 12400 states and 15021 transitions. [2020-07-07 13:20:39,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 13:20:39,155 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 266 [2020-07-07 13:20:39,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:20:39,175 INFO L225 Difference]: With dead ends: 12400 [2020-07-07 13:20:39,175 INFO L226 Difference]: Without dead ends: 7482 [2020-07-07 13:20:39,195 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-07 13:20:39,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7482 states. [2020-07-07 13:20:39,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7482 to 5835. [2020-07-07 13:20:39,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5835 states. [2020-07-07 13:20:39,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5835 states to 5835 states and 6908 transitions. [2020-07-07 13:20:39,595 INFO L78 Accepts]: Start accepts. Automaton has 5835 states and 6908 transitions. Word has length 266 [2020-07-07 13:20:39,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:20:39,596 INFO L479 AbstractCegarLoop]: Abstraction has 5835 states and 6908 transitions. [2020-07-07 13:20:39,596 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 13:20:39,596 INFO L276 IsEmpty]: Start isEmpty. Operand 5835 states and 6908 transitions. [2020-07-07 13:20:39,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-07-07 13:20:39,610 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:20:39,611 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] [2020-07-07 13:20:39,611 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-07-07 13:20:39,611 INFO L427 AbstractCegarLoop]: === Iteration 16 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:20:39,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:20:39,612 INFO L82 PathProgramCache]: Analyzing trace with hash -625071199, now seen corresponding path program 2 times [2020-07-07 13:20:39,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:20:39,612 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [957246919] [2020-07-07 13:20:39,612 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:20:39,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:39,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:39,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:20:39,730 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:20:39,730 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [957246919] [2020-07-07 13:20:39,731 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:20:39,731 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 13:20:39,731 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51561279] [2020-07-07 13:20:39,732 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 13:20:39,732 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:20:39,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 13:20:39,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-07 13:20:39,733 INFO L87 Difference]: Start difference. First operand 5835 states and 6908 transitions. Second operand 5 states. [2020-07-07 13:20:40,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:20:40,508 INFO L93 Difference]: Finished difference Result 9920 states and 11683 transitions. [2020-07-07 13:20:40,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 13:20:40,509 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 269 [2020-07-07 13:20:40,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:20:40,527 INFO L225 Difference]: With dead ends: 9920 [2020-07-07 13:20:40,527 INFO L226 Difference]: Without dead ends: 6999 [2020-07-07 13:20:40,537 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-07 13:20:40,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6999 states. [2020-07-07 13:20:41,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6999 to 5835. [2020-07-07 13:20:41,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5835 states. [2020-07-07 13:20:41,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5835 states to 5835 states and 6908 transitions. [2020-07-07 13:20:41,069 INFO L78 Accepts]: Start accepts. Automaton has 5835 states and 6908 transitions. Word has length 269 [2020-07-07 13:20:41,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:20:41,070 INFO L479 AbstractCegarLoop]: Abstraction has 5835 states and 6908 transitions. [2020-07-07 13:20:41,070 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 13:20:41,070 INFO L276 IsEmpty]: Start isEmpty. Operand 5835 states and 6908 transitions. [2020-07-07 13:20:41,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-07-07 13:20:41,080 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:20:41,080 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] [2020-07-07 13:20:41,081 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-07-07 13:20:41,081 INFO L427 AbstractCegarLoop]: === Iteration 17 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:20:41,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:20:41,081 INFO L82 PathProgramCache]: Analyzing trace with hash -555087791, now seen corresponding path program 1 times [2020-07-07 13:20:41,082 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:20:41,082 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1211523688] [2020-07-07 13:20:41,082 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:20:41,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:41,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:41,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:20:41,190 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:20:41,191 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1211523688] [2020-07-07 13:20:41,191 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:20:41,191 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 13:20:41,191 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130779099] [2020-07-07 13:20:41,192 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 13:20:41,192 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:20:41,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 13:20:41,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 13:20:41,192 INFO L87 Difference]: Start difference. First operand 5835 states and 6908 transitions. Second operand 4 states. [2020-07-07 13:20:42,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:20:42,140 INFO L93 Difference]: Finished difference Result 12249 states and 14602 transitions. [2020-07-07 13:20:42,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 13:20:42,141 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 269 [2020-07-07 13:20:42,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:20:42,163 INFO L225 Difference]: With dead ends: 12249 [2020-07-07 13:20:42,163 INFO L226 Difference]: Without dead ends: 9324 [2020-07-07 13:20:42,172 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-07 13:20:42,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9324 states. [2020-07-07 13:20:42,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9324 to 5907. [2020-07-07 13:20:42,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5907 states. [2020-07-07 13:20:42,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5907 states to 5907 states and 6996 transitions. [2020-07-07 13:20:42,713 INFO L78 Accepts]: Start accepts. Automaton has 5907 states and 6996 transitions. Word has length 269 [2020-07-07 13:20:42,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:20:42,714 INFO L479 AbstractCegarLoop]: Abstraction has 5907 states and 6996 transitions. [2020-07-07 13:20:42,714 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 13:20:42,714 INFO L276 IsEmpty]: Start isEmpty. Operand 5907 states and 6996 transitions. [2020-07-07 13:20:42,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-07-07 13:20:42,723 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:20:42,724 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] [2020-07-07 13:20:42,724 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-07-07 13:20:42,724 INFO L427 AbstractCegarLoop]: === Iteration 18 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:20:42,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:20:42,726 INFO L82 PathProgramCache]: Analyzing trace with hash 1985209329, now seen corresponding path program 3 times [2020-07-07 13:20:42,726 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:20:42,727 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1650049310] [2020-07-07 13:20:42,727 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:20:42,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:42,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:42,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:20:42,843 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:20:42,843 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1650049310] [2020-07-07 13:20:42,844 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:20:42,844 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 13:20:42,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858074317] [2020-07-07 13:20:42,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 13:20:42,845 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:20:42,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 13:20:42,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-07 13:20:42,852 INFO L87 Difference]: Start difference. First operand 5907 states and 6996 transitions. Second operand 5 states. [2020-07-07 13:20:43,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:20:43,561 INFO L93 Difference]: Finished difference Result 9604 states and 11323 transitions. [2020-07-07 13:20:43,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 13:20:43,562 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 269 [2020-07-07 13:20:43,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:20:43,574 INFO L225 Difference]: With dead ends: 9604 [2020-07-07 13:20:43,574 INFO L226 Difference]: Without dead ends: 6611 [2020-07-07 13:20:43,582 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-07 13:20:43,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6611 states. [2020-07-07 13:20:44,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6611 to 5987. [2020-07-07 13:20:44,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5987 states. [2020-07-07 13:20:44,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5987 states to 5987 states and 7084 transitions. [2020-07-07 13:20:44,054 INFO L78 Accepts]: Start accepts. Automaton has 5987 states and 7084 transitions. Word has length 269 [2020-07-07 13:20:44,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:20:44,055 INFO L479 AbstractCegarLoop]: Abstraction has 5987 states and 7084 transitions. [2020-07-07 13:20:44,055 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 13:20:44,055 INFO L276 IsEmpty]: Start isEmpty. Operand 5987 states and 7084 transitions. [2020-07-07 13:20:44,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2020-07-07 13:20:44,064 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:20:44,064 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] [2020-07-07 13:20:44,065 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-07-07 13:20:44,065 INFO L427 AbstractCegarLoop]: === Iteration 19 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:20:44,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:20:44,065 INFO L82 PathProgramCache]: Analyzing trace with hash -1391566917, now seen corresponding path program 1 times [2020-07-07 13:20:44,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:20:44,066 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [284384975] [2020-07-07 13:20:44,066 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:20:44,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:44,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:44,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:20:44,156 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:20:44,156 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [284384975] [2020-07-07 13:20:44,157 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:20:44,157 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:20:44,157 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410541816] [2020-07-07 13:20:44,157 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:20:44,158 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:20:44,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:20:44,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:20:44,158 INFO L87 Difference]: Start difference. First operand 5987 states and 7084 transitions. Second operand 3 states. [2020-07-07 13:20:44,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:20:44,624 INFO L93 Difference]: Finished difference Result 11173 states and 13253 transitions. [2020-07-07 13:20:44,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:20:44,624 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 271 [2020-07-07 13:20:44,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:20:44,635 INFO L225 Difference]: With dead ends: 11173 [2020-07-07 13:20:44,635 INFO L226 Difference]: Without dead ends: 6797 [2020-07-07 13:20:44,647 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:20:44,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6797 states. [2020-07-07 13:20:45,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6797 to 6797. [2020-07-07 13:20:45,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6797 states. [2020-07-07 13:20:45,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6797 states to 6797 states and 8036 transitions. [2020-07-07 13:20:45,350 INFO L78 Accepts]: Start accepts. Automaton has 6797 states and 8036 transitions. Word has length 271 [2020-07-07 13:20:45,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:20:45,351 INFO L479 AbstractCegarLoop]: Abstraction has 6797 states and 8036 transitions. [2020-07-07 13:20:45,351 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:20:45,351 INFO L276 IsEmpty]: Start isEmpty. Operand 6797 states and 8036 transitions. [2020-07-07 13:20:45,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2020-07-07 13:20:45,361 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:20:45,361 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] [2020-07-07 13:20:45,362 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-07-07 13:20:45,362 INFO L427 AbstractCegarLoop]: === Iteration 20 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:20:45,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:20:45,364 INFO L82 PathProgramCache]: Analyzing trace with hash -1703791530, now seen corresponding path program 1 times [2020-07-07 13:20:45,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:20:45,365 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2132991311] [2020-07-07 13:20:45,365 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:20:45,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 13:20:45,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 13:20:45,626 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:20:45,627 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 13:20:45,627 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 13:20:45,628 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-07-07 13:20:45,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 01:20:45 BoogieIcfgContainer [2020-07-07 13:20:45,684 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 13:20:45,688 INFO L168 Benchmark]: Toolchain (without parser) took 20193.45 ms. Allocated memory was 135.3 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 98.5 MB in the beginning and 466.7 MB in the end (delta: -368.2 MB). Peak memory consumption was 708.1 MB. Max. memory is 7.1 GB. [2020-07-07 13:20:45,693 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 135.3 MB. Free memory is still 117.1 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-07 13:20:45,694 INFO L168 Benchmark]: CACSL2BoogieTranslator took 529.02 ms. Allocated memory was 135.3 MB in the beginning and 200.3 MB in the end (delta: 65.0 MB). Free memory was 98.1 MB in the beginning and 175.7 MB in the end (delta: -77.6 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB. [2020-07-07 13:20:45,696 INFO L168 Benchmark]: Boogie Preprocessor took 54.24 ms. Allocated memory is still 200.3 MB. Free memory was 175.7 MB in the beginning and 173.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-07-07 13:20:45,699 INFO L168 Benchmark]: RCFGBuilder took 1025.82 ms. Allocated memory is still 200.3 MB. Free memory was 173.6 MB in the beginning and 109.8 MB in the end (delta: 63.8 MB). Peak memory consumption was 63.8 MB. Max. memory is 7.1 GB. [2020-07-07 13:20:45,699 INFO L168 Benchmark]: TraceAbstraction took 18578.96 ms. Allocated memory was 200.3 MB in the beginning and 1.2 GB in the end (delta: 1.0 GB). Free memory was 109.8 MB in the beginning and 466.7 MB in the end (delta: -357.0 MB). Peak memory consumption was 654.4 MB. Max. memory is 7.1 GB. [2020-07-07 13:20:45,706 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 135.3 MB. Free memory is still 117.1 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 529.02 ms. Allocated memory was 135.3 MB in the beginning and 200.3 MB in the end (delta: 65.0 MB). Free memory was 98.1 MB in the beginning and 175.7 MB in the end (delta: -77.6 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 54.24 ms. Allocated memory is still 200.3 MB. Free memory was 175.7 MB in the beginning and 173.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1025.82 ms. Allocated memory is still 200.3 MB. Free memory was 173.6 MB in the beginning and 109.8 MB in the end (delta: 63.8 MB). Peak memory consumption was 63.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18578.96 ms. Allocated memory was 200.3 MB in the beginning and 1.2 GB in the end (delta: 1.0 GB). Free memory was 109.8 MB in the beginning and 466.7 MB in the end (delta: -357.0 MB). Peak memory consumption was 654.4 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: 18.4s, OverallIterations: 20, TraceHistogramMax: 6, AutomataDifference: 8.7s, 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, 124 GetRequests, 83 SyntacticMatches, 0 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...