/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 0.1.25-3af5e1f [2020-09-04 16:32:40,494 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 16:32:40,498 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 16:32:40,524 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 16:32:40,524 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 16:32:40,526 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 16:32:40,527 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 16:32:40,529 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 16:32:40,530 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 16:32:40,531 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 16:32:40,532 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 16:32:40,534 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 16:32:40,534 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 16:32:40,535 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 16:32:40,536 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 16:32:40,537 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 16:32:40,538 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 16:32:40,539 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 16:32:40,541 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 16:32:40,543 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 16:32:40,545 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 16:32:40,546 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 16:32:40,547 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 16:32:40,548 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 16:32:40,551 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-04 16:32:40,560 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 16:32:40,561 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 16:32:40,561 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 16:32:40,562 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 16:32:40,574 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 16:32:40,574 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 16:32:40,576 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 16:32:40,576 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 16:32:40,576 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 16:32:40,576 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 16:32:40,576 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 16:32:40,577 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 16:32:40,577 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 16:32:40,577 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 16:32:40,577 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 16:32:40,578 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 16:32:40,578 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 16:32:40,578 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 16:32:40,578 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 16:32:40,578 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 16:32:40,579 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 16:32:40,579 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 16:32:40,579 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 16:32:40,579 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 16:32:40,580 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 16:32:40,580 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 16:32:40,580 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 16:32:41,045 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 16:32:41,069 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 16:32:41,073 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 16:32:41,075 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 16:32:41,076 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 16:32:41,077 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_1.cil-2.c [2020-09-04 16:32:41,159 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5822706df/d757650fa86e4b1ab153122a105d82d2/FLAG9b12b4612 [2020-09-04 16:32:41,771 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 16:32:41,772 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_clnt_1.cil-2.c [2020-09-04 16:32:41,785 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5822706df/d757650fa86e4b1ab153122a105d82d2/FLAG9b12b4612 [2020-09-04 16:32:42,080 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5822706df/d757650fa86e4b1ab153122a105d82d2 [2020-09-04 16:32:42,095 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 16:32:42,097 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 16:32:42,102 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 16:32:42,102 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 16:32:42,106 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 16:32:42,107 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 04:32:42" (1/1) ... [2020-09-04 16:32:42,112 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13482720 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:32:42, skipping insertion in model container [2020-09-04 16:32:42,112 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 04:32:42" (1/1) ... [2020-09-04 16:32:42,122 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 16:32:42,190 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 16:32:42,514 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 16:32:42,519 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 16:32:42,682 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 16:32:42,702 INFO L208 MainTranslator]: Completed translation [2020-09-04 16:32:42,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:32:42 WrapperNode [2020-09-04 16:32:42,702 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 16:32:42,703 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 16:32:42,703 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 16:32:42,703 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 16:32:42,721 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:32:42" (1/1) ... [2020-09-04 16:32:42,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:32:42" (1/1) ... [2020-09-04 16:32:42,730 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:32:42" (1/1) ... [2020-09-04 16:32:42,731 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:32:42" (1/1) ... [2020-09-04 16:32:42,743 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:32:42" (1/1) ... [2020-09-04 16:32:42,758 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:32:42" (1/1) ... [2020-09-04 16:32:42,761 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:32:42" (1/1) ... [2020-09-04 16:32:42,766 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 16:32:42,766 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 16:32:42,766 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 16:32:42,767 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 16:32:42,768 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:32:42" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 16:32:42,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 16:32:42,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 16:32:42,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-09-04 16:32:42,861 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 16:32:42,861 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 16:32:42,861 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-04 16:32:42,861 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 16:32:42,862 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-04 16:32:42,862 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-09-04 16:32:42,862 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 16:32:42,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 16:32:42,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 16:32:43,026 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-04 16:32:43,656 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-09-04 16:32:43,656 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-09-04 16:32:43,689 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 16:32:43,689 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-04 16:32:43,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 04:32:43 BoogieIcfgContainer [2020-09-04 16:32:43,697 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 16:32:43,699 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 16:32:43,699 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 16:32:43,703 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 16:32:43,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 04:32:42" (1/3) ... [2020-09-04 16:32:43,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f17413d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 04:32:43, skipping insertion in model container [2020-09-04 16:32:43,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:32:42" (2/3) ... [2020-09-04 16:32:43,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f17413d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 04:32:43, skipping insertion in model container [2020-09-04 16:32:43,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 04:32:43" (3/3) ... [2020-09-04 16:32:43,707 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_1.cil-2.c [2020-09-04 16:32:43,718 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 16:32:43,729 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 16:32:43,752 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 16:32:43,782 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 16:32:43,782 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 16:32:43,783 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 16:32:43,783 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 16:32:43,783 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 16:32:43,783 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 16:32:43,783 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 16:32:43,784 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 16:32:43,809 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states. [2020-09-04 16:32:43,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-04 16:32:43,834 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:32:43,835 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] [2020-09-04 16:32:43,836 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:32:43,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:32:43,844 INFO L82 PathProgramCache]: Analyzing trace with hash -1836119895, now seen corresponding path program 1 times [2020-09-04 16:32:43,856 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:32:43,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1359485477] [2020-09-04 16:32:43,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:32:43,932 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:32:44,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:44,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:32:44,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:44,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:32:44,422 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1359485477] [2020-09-04 16:32:44,424 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:32:44,425 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-04 16:32:44,425 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381511613] [2020-09-04 16:32:44,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 16:32:44,432 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:32:44,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 16:32:44,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-04 16:32:44,454 INFO L87 Difference]: Start difference. First operand 383 states. Second operand 5 states. [2020-09-04 16:32:44,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:32:44,867 INFO L93 Difference]: Finished difference Result 686 states and 901 transitions. [2020-09-04 16:32:44,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 16:32:44,870 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 160 [2020-09-04 16:32:44,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:32:44,890 INFO L225 Difference]: With dead ends: 686 [2020-09-04 16:32:44,890 INFO L226 Difference]: Without dead ends: 362 [2020-09-04 16:32:44,897 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 [2020-09-04 16:32:44,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2020-09-04 16:32:44,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 347. [2020-09-04 16:32:44,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2020-09-04 16:32:44,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 406 transitions. [2020-09-04 16:32:44,989 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 406 transitions. Word has length 160 [2020-09-04 16:32:44,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:32:44,990 INFO L479 AbstractCegarLoop]: Abstraction has 347 states and 406 transitions. [2020-09-04 16:32:44,990 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 16:32:44,990 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 406 transitions. [2020-09-04 16:32:44,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-09-04 16:32:44,995 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:32:44,995 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] [2020-09-04 16:32:44,996 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 16:32:44,996 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:32:44,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:32:44,997 INFO L82 PathProgramCache]: Analyzing trace with hash 1755332249, now seen corresponding path program 1 times [2020-09-04 16:32:44,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:32:44,997 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [682947186] [2020-09-04 16:32:44,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:32:45,027 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:32:45,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:45,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:32:45,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:45,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:32:45,304 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [682947186] [2020-09-04 16:32:45,304 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:32:45,304 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-04 16:32:45,304 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737872873] [2020-09-04 16:32:45,306 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 16:32:45,306 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:32:45,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 16:32:45,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-04 16:32:45,307 INFO L87 Difference]: Start difference. First operand 347 states and 406 transitions. Second operand 5 states. [2020-09-04 16:32:45,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:32:45,596 INFO L93 Difference]: Finished difference Result 607 states and 757 transitions. [2020-09-04 16:32:45,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 16:32:45,597 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 179 [2020-09-04 16:32:45,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:32:45,601 INFO L225 Difference]: With dead ends: 607 [2020-09-04 16:32:45,601 INFO L226 Difference]: Without dead ends: 405 [2020-09-04 16:32:45,604 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 [2020-09-04 16:32:45,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2020-09-04 16:32:45,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 360. [2020-09-04 16:32:45,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-09-04 16:32:45,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 424 transitions. [2020-09-04 16:32:45,653 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 424 transitions. Word has length 179 [2020-09-04 16:32:45,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:32:45,655 INFO L479 AbstractCegarLoop]: Abstraction has 360 states and 424 transitions. [2020-09-04 16:32:45,655 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 16:32:45,655 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 424 transitions. [2020-09-04 16:32:45,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-09-04 16:32:45,664 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:32:45,665 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] [2020-09-04 16:32:45,665 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 16:32:45,665 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:32:45,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:32:45,666 INFO L82 PathProgramCache]: Analyzing trace with hash 933719357, now seen corresponding path program 1 times [2020-09-04 16:32:45,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:32:45,667 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1496555349] [2020-09-04 16:32:45,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:32:45,681 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:32:45,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:45,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:32:45,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:45,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:32:45,864 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1496555349] [2020-09-04 16:32:45,864 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:32:45,864 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 16:32:45,865 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459392109] [2020-09-04 16:32:45,865 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 16:32:45,866 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:32:45,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 16:32:45,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:32:45,866 INFO L87 Difference]: Start difference. First operand 360 states and 424 transitions. Second operand 3 states. [2020-09-04 16:32:46,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:32:46,074 INFO L93 Difference]: Finished difference Result 603 states and 737 transitions. [2020-09-04 16:32:46,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 16:32:46,075 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 183 [2020-09-04 16:32:46,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:32:46,078 INFO L225 Difference]: With dead ends: 603 [2020-09-04 16:32:46,079 INFO L226 Difference]: Without dead ends: 388 [2020-09-04 16:32:46,080 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 [2020-09-04 16:32:46,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2020-09-04 16:32:46,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 378. [2020-09-04 16:32:46,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 378 states. [2020-09-04 16:32:46,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 447 transitions. [2020-09-04 16:32:46,121 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 447 transitions. Word has length 183 [2020-09-04 16:32:46,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:32:46,122 INFO L479 AbstractCegarLoop]: Abstraction has 378 states and 447 transitions. [2020-09-04 16:32:46,122 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 16:32:46,123 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 447 transitions. [2020-09-04 16:32:46,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-04 16:32:46,127 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:32:46,128 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] [2020-09-04 16:32:46,128 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 16:32:46,129 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:32:46,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:32:46,129 INFO L82 PathProgramCache]: Analyzing trace with hash 787271153, now seen corresponding path program 1 times [2020-09-04 16:32:46,130 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:32:46,130 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1670445890] [2020-09-04 16:32:46,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:32:46,151 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:32:46,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:46,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:32:46,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:46,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:32:46,305 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1670445890] [2020-09-04 16:32:46,305 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:32:46,305 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 16:32:46,306 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829975964] [2020-09-04 16:32:46,306 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 16:32:46,306 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:32:46,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 16:32:46,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:32:46,307 INFO L87 Difference]: Start difference. First operand 378 states and 447 transitions. Second operand 3 states. [2020-09-04 16:32:46,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:32:46,474 INFO L93 Difference]: Finished difference Result 837 states and 1037 transitions. [2020-09-04 16:32:46,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 16:32:46,475 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2020-09-04 16:32:46,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:32:46,480 INFO L225 Difference]: With dead ends: 837 [2020-09-04 16:32:46,480 INFO L226 Difference]: Without dead ends: 604 [2020-09-04 16:32:46,482 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 [2020-09-04 16:32:46,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2020-09-04 16:32:46,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 604. [2020-09-04 16:32:46,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 604 states. [2020-09-04 16:32:46,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 734 transitions. [2020-09-04 16:32:46,567 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 734 transitions. Word has length 190 [2020-09-04 16:32:46,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:32:46,568 INFO L479 AbstractCegarLoop]: Abstraction has 604 states and 734 transitions. [2020-09-04 16:32:46,569 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 16:32:46,569 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 734 transitions. [2020-09-04 16:32:46,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-09-04 16:32:46,574 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:32:46,575 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] [2020-09-04 16:32:46,575 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 16:32:46,576 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:32:46,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:32:46,576 INFO L82 PathProgramCache]: Analyzing trace with hash -1378664763, now seen corresponding path program 1 times [2020-09-04 16:32:46,577 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:32:46,577 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1384246938] [2020-09-04 16:32:46,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:32:46,587 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:32:46,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:46,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:32:46,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:46,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:32:46,733 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1384246938] [2020-09-04 16:32:46,733 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:32:46,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 16:32:46,734 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454272615] [2020-09-04 16:32:46,735 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 16:32:46,735 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:32:46,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 16:32:46,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:32:46,736 INFO L87 Difference]: Start difference. First operand 604 states and 734 transitions. Second operand 3 states. [2020-09-04 16:32:47,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:32:47,028 INFO L93 Difference]: Finished difference Result 1124 states and 1405 transitions. [2020-09-04 16:32:47,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 16:32:47,029 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 203 [2020-09-04 16:32:47,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:32:47,034 INFO L225 Difference]: With dead ends: 1124 [2020-09-04 16:32:47,035 INFO L226 Difference]: Without dead ends: 665 [2020-09-04 16:32:47,037 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 [2020-09-04 16:32:47,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2020-09-04 16:32:47,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 644. [2020-09-04 16:32:47,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 644 states. [2020-09-04 16:32:47,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 784 transitions. [2020-09-04 16:32:47,146 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 784 transitions. Word has length 203 [2020-09-04 16:32:47,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:32:47,147 INFO L479 AbstractCegarLoop]: Abstraction has 644 states and 784 transitions. [2020-09-04 16:32:47,147 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 16:32:47,148 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 784 transitions. [2020-09-04 16:32:47,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-09-04 16:32:47,154 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:32:47,155 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] [2020-09-04 16:32:47,156 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-04 16:32:47,156 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:32:47,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:32:47,157 INFO L82 PathProgramCache]: Analyzing trace with hash -2019314839, now seen corresponding path program 1 times [2020-09-04 16:32:47,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:32:47,158 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [981197715] [2020-09-04 16:32:47,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:32:47,168 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:32:47,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:47,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:32:47,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:47,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:32:47,348 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [981197715] [2020-09-04 16:32:47,348 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:32:47,348 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 16:32:47,348 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254732590] [2020-09-04 16:32:47,349 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 16:32:47,349 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:32:47,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 16:32:47,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:32:47,350 INFO L87 Difference]: Start difference. First operand 644 states and 784 transitions. Second operand 3 states. [2020-09-04 16:32:47,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:32:47,532 INFO L93 Difference]: Finished difference Result 1572 states and 1952 transitions. [2020-09-04 16:32:47,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 16:32:47,533 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 210 [2020-09-04 16:32:47,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:32:47,541 INFO L225 Difference]: With dead ends: 1572 [2020-09-04 16:32:47,541 INFO L226 Difference]: Without dead ends: 1073 [2020-09-04 16:32:47,543 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 [2020-09-04 16:32:47,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2020-09-04 16:32:47,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 1071. [2020-09-04 16:32:47,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1071 states. [2020-09-04 16:32:47,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1308 transitions. [2020-09-04 16:32:47,703 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1308 transitions. Word has length 210 [2020-09-04 16:32:47,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:32:47,704 INFO L479 AbstractCegarLoop]: Abstraction has 1071 states and 1308 transitions. [2020-09-04 16:32:47,704 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 16:32:47,704 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1308 transitions. [2020-09-04 16:32:47,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-09-04 16:32:47,711 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:32:47,712 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] [2020-09-04 16:32:47,712 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-04 16:32:47,712 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:32:47,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:32:47,713 INFO L82 PathProgramCache]: Analyzing trace with hash 1170821308, now seen corresponding path program 1 times [2020-09-04 16:32:47,713 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:32:47,714 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [668424108] [2020-09-04 16:32:47,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:32:47,722 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:32:47,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:47,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:32:47,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:47,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:32:47,861 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [668424108] [2020-09-04 16:32:47,862 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:32:47,862 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 16:32:47,862 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473106416] [2020-09-04 16:32:47,863 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 16:32:47,863 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:32:47,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 16:32:47,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:32:47,863 INFO L87 Difference]: Start difference. First operand 1071 states and 1308 transitions. Second operand 3 states. [2020-09-04 16:32:48,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:32:48,012 INFO L93 Difference]: Finished difference Result 2015 states and 2489 transitions. [2020-09-04 16:32:48,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 16:32:48,013 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 211 [2020-09-04 16:32:48,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:32:48,019 INFO L225 Difference]: With dead ends: 2015 [2020-09-04 16:32:48,020 INFO L226 Difference]: Without dead ends: 1089 [2020-09-04 16:32:48,022 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 [2020-09-04 16:32:48,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2020-09-04 16:32:48,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 1079. [2020-09-04 16:32:48,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1079 states. [2020-09-04 16:32:48,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1312 transitions. [2020-09-04 16:32:48,137 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1312 transitions. Word has length 211 [2020-09-04 16:32:48,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:32:48,138 INFO L479 AbstractCegarLoop]: Abstraction has 1079 states and 1312 transitions. [2020-09-04 16:32:48,138 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 16:32:48,138 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1312 transitions. [2020-09-04 16:32:48,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-09-04 16:32:48,141 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:32:48,142 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] [2020-09-04 16:32:48,142 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-04 16:32:48,142 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:32:48,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:32:48,143 INFO L82 PathProgramCache]: Analyzing trace with hash 1492439948, now seen corresponding path program 1 times [2020-09-04 16:32:48,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:32:48,143 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2087995667] [2020-09-04 16:32:48,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:32:48,150 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:32:48,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:48,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:32:48,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:48,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:32:48,249 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2087995667] [2020-09-04 16:32:48,249 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:32:48,249 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 16:32:48,250 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299976456] [2020-09-04 16:32:48,250 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 16:32:48,250 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:32:48,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 16:32:48,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:32:48,251 INFO L87 Difference]: Start difference. First operand 1079 states and 1312 transitions. Second operand 3 states. [2020-09-04 16:32:48,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:32:48,579 INFO L93 Difference]: Finished difference Result 2933 states and 3616 transitions. [2020-09-04 16:32:48,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 16:32:48,580 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 213 [2020-09-04 16:32:48,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:32:48,594 INFO L225 Difference]: With dead ends: 2933 [2020-09-04 16:32:48,595 INFO L226 Difference]: Without dead ends: 1999 [2020-09-04 16:32:48,598 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 [2020-09-04 16:32:48,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1999 states. [2020-09-04 16:32:48,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1999 to 1997. [2020-09-04 16:32:48,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1997 states. [2020-09-04 16:32:48,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1997 states to 1997 states and 2440 transitions. [2020-09-04 16:32:48,833 INFO L78 Accepts]: Start accepts. Automaton has 1997 states and 2440 transitions. Word has length 213 [2020-09-04 16:32:48,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:32:48,833 INFO L479 AbstractCegarLoop]: Abstraction has 1997 states and 2440 transitions. [2020-09-04 16:32:48,833 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 16:32:48,834 INFO L276 IsEmpty]: Start isEmpty. Operand 1997 states and 2440 transitions. [2020-09-04 16:32:48,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-09-04 16:32:48,839 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:32:48,839 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] [2020-09-04 16:32:48,839 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-04 16:32:48,839 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:32:48,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:32:48,840 INFO L82 PathProgramCache]: Analyzing trace with hash -193739890, now seen corresponding path program 1 times [2020-09-04 16:32:48,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:32:48,841 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [284459796] [2020-09-04 16:32:48,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:32:48,848 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:32:48,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:48,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:32:48,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:48,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:32:48,948 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [284459796] [2020-09-04 16:32:48,948 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:32:48,948 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 16:32:48,953 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541154717] [2020-09-04 16:32:48,953 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 16:32:48,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:32:48,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 16:32:48,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:32:48,955 INFO L87 Difference]: Start difference. First operand 1997 states and 2440 transitions. Second operand 3 states. [2020-09-04 16:32:49,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:32:49,279 INFO L93 Difference]: Finished difference Result 2948 states and 3610 transitions. [2020-09-04 16:32:49,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 16:32:49,280 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 213 [2020-09-04 16:32:49,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:32:49,299 INFO L225 Difference]: With dead ends: 2948 [2020-09-04 16:32:49,299 INFO L226 Difference]: Without dead ends: 2014 [2020-09-04 16:32:49,303 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 [2020-09-04 16:32:49,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2014 states. [2020-09-04 16:32:49,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2014 to 2012. [2020-09-04 16:32:49,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2012 states. [2020-09-04 16:32:49,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2012 states to 2012 states and 2446 transitions. [2020-09-04 16:32:49,658 INFO L78 Accepts]: Start accepts. Automaton has 2012 states and 2446 transitions. Word has length 213 [2020-09-04 16:32:49,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:32:49,661 INFO L479 AbstractCegarLoop]: Abstraction has 2012 states and 2446 transitions. [2020-09-04 16:32:49,665 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 16:32:49,665 INFO L276 IsEmpty]: Start isEmpty. Operand 2012 states and 2446 transitions. [2020-09-04 16:32:49,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-09-04 16:32:49,671 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:32:49,672 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] [2020-09-04 16:32:49,672 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-04 16:32:49,672 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:32:49,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:32:49,673 INFO L82 PathProgramCache]: Analyzing trace with hash -792504871, now seen corresponding path program 1 times [2020-09-04 16:32:49,673 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:32:49,673 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [69164681] [2020-09-04 16:32:49,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:32:49,684 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:32:49,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:49,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:32:49,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:49,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:32:49,841 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [69164681] [2020-09-04 16:32:49,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:32:49,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 16:32:49,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438343170] [2020-09-04 16:32:49,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 16:32:49,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:32:49,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 16:32:49,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:32:49,844 INFO L87 Difference]: Start difference. First operand 2012 states and 2446 transitions. Second operand 3 states. [2020-09-04 16:32:50,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:32:50,535 INFO L93 Difference]: Finished difference Result 3864 states and 4745 transitions. [2020-09-04 16:32:50,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 16:32:50,536 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 214 [2020-09-04 16:32:50,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:32:50,558 INFO L225 Difference]: With dead ends: 3864 [2020-09-04 16:32:50,558 INFO L226 Difference]: Without dead ends: 2927 [2020-09-04 16:32:50,562 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 [2020-09-04 16:32:50,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2927 states. [2020-09-04 16:32:51,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2927 to 2927. [2020-09-04 16:32:51,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2927 states. [2020-09-04 16:32:51,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2927 states to 2927 states and 3569 transitions. [2020-09-04 16:32:51,090 INFO L78 Accepts]: Start accepts. Automaton has 2927 states and 3569 transitions. Word has length 214 [2020-09-04 16:32:51,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:32:51,091 INFO L479 AbstractCegarLoop]: Abstraction has 2927 states and 3569 transitions. [2020-09-04 16:32:51,091 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 16:32:51,091 INFO L276 IsEmpty]: Start isEmpty. Operand 2927 states and 3569 transitions. [2020-09-04 16:32:51,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-09-04 16:32:51,103 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:32:51,104 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] [2020-09-04 16:32:51,104 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-04 16:32:51,105 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:32:51,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:32:51,105 INFO L82 PathProgramCache]: Analyzing trace with hash 1362043361, now seen corresponding path program 1 times [2020-09-04 16:32:51,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:32:51,106 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [672607054] [2020-09-04 16:32:51,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:32:51,117 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:32:51,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:51,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:32:51,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:51,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:32:51,303 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [672607054] [2020-09-04 16:32:51,303 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:32:51,304 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 16:32:51,304 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511313871] [2020-09-04 16:32:51,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 16:32:51,306 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:32:51,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 16:32:51,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:32:51,307 INFO L87 Difference]: Start difference. First operand 2927 states and 3569 transitions. Second operand 3 states. [2020-09-04 16:32:52,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:32:52,125 INFO L93 Difference]: Finished difference Result 6369 states and 8021 transitions. [2020-09-04 16:32:52,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 16:32:52,126 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 224 [2020-09-04 16:32:52,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:32:52,147 INFO L225 Difference]: With dead ends: 6369 [2020-09-04 16:32:52,147 INFO L226 Difference]: Without dead ends: 3590 [2020-09-04 16:32:52,154 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 [2020-09-04 16:32:52,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3590 states. [2020-09-04 16:32:52,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3590 to 3404. [2020-09-04 16:32:52,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3404 states. [2020-09-04 16:32:52,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3404 states to 3404 states and 4085 transitions. [2020-09-04 16:32:52,530 INFO L78 Accepts]: Start accepts. Automaton has 3404 states and 4085 transitions. Word has length 224 [2020-09-04 16:32:52,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:32:52,531 INFO L479 AbstractCegarLoop]: Abstraction has 3404 states and 4085 transitions. [2020-09-04 16:32:52,531 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 16:32:52,531 INFO L276 IsEmpty]: Start isEmpty. Operand 3404 states and 4085 transitions. [2020-09-04 16:32:52,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-09-04 16:32:52,541 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:32:52,541 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] [2020-09-04 16:32:52,542 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-04 16:32:52,542 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:32:52,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:32:52,542 INFO L82 PathProgramCache]: Analyzing trace with hash -481557951, now seen corresponding path program 1 times [2020-09-04 16:32:52,543 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:32:52,543 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1992512106] [2020-09-04 16:32:52,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:32:52,551 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:32:52,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:52,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:32:52,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:52,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:32:52,664 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1992512106] [2020-09-04 16:32:52,664 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:32:52,664 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 16:32:52,665 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392657126] [2020-09-04 16:32:52,665 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 16:32:52,665 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:32:52,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 16:32:52,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:32:52,666 INFO L87 Difference]: Start difference. First operand 3404 states and 4085 transitions. Second operand 3 states. [2020-09-04 16:32:53,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:32:53,231 INFO L93 Difference]: Finished difference Result 6973 states and 8455 transitions. [2020-09-04 16:32:53,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 16:32:53,231 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 224 [2020-09-04 16:32:53,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:32:53,251 INFO L225 Difference]: With dead ends: 6973 [2020-09-04 16:32:53,251 INFO L226 Difference]: Without dead ends: 3729 [2020-09-04 16:32:53,263 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 [2020-09-04 16:32:53,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3729 states. [2020-09-04 16:32:53,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3729 to 3617. [2020-09-04 16:32:53,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3617 states. [2020-09-04 16:32:53,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3617 states to 3617 states and 4313 transitions. [2020-09-04 16:32:53,567 INFO L78 Accepts]: Start accepts. Automaton has 3617 states and 4313 transitions. Word has length 224 [2020-09-04 16:32:53,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:32:53,568 INFO L479 AbstractCegarLoop]: Abstraction has 3617 states and 4313 transitions. [2020-09-04 16:32:53,568 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 16:32:53,568 INFO L276 IsEmpty]: Start isEmpty. Operand 3617 states and 4313 transitions. [2020-09-04 16:32:53,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-09-04 16:32:53,577 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:32:53,578 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] [2020-09-04 16:32:53,578 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-04 16:32:53,578 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:32:53,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:32:53,579 INFO L82 PathProgramCache]: Analyzing trace with hash -1724843027, now seen corresponding path program 1 times [2020-09-04 16:32:53,579 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:32:53,579 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1218202182] [2020-09-04 16:32:53,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:32:53,590 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:32:53,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:53,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:32:53,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:53,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:32:53,703 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1218202182] [2020-09-04 16:32:53,703 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:32:53,703 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 16:32:53,704 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931746798] [2020-09-04 16:32:53,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 16:32:53,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:32:53,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 16:32:53,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:32:53,706 INFO L87 Difference]: Start difference. First operand 3617 states and 4313 transitions. Second operand 3 states. [2020-09-04 16:32:54,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:32:54,246 INFO L93 Difference]: Finished difference Result 7074 states and 8479 transitions. [2020-09-04 16:32:54,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 16:32:54,246 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 239 [2020-09-04 16:32:54,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:32:54,275 INFO L225 Difference]: With dead ends: 7074 [2020-09-04 16:32:54,275 INFO L226 Difference]: Without dead ends: 4762 [2020-09-04 16:32:54,284 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 [2020-09-04 16:32:54,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4762 states. [2020-09-04 16:32:54,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4762 to 4762. [2020-09-04 16:32:54,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4762 states. [2020-09-04 16:32:54,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4762 states to 4762 states and 5688 transitions. [2020-09-04 16:32:54,649 INFO L78 Accepts]: Start accepts. Automaton has 4762 states and 5688 transitions. Word has length 239 [2020-09-04 16:32:54,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:32:54,650 INFO L479 AbstractCegarLoop]: Abstraction has 4762 states and 5688 transitions. [2020-09-04 16:32:54,650 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 16:32:54,650 INFO L276 IsEmpty]: Start isEmpty. Operand 4762 states and 5688 transitions. [2020-09-04 16:32:54,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2020-09-04 16:32:54,661 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:32:54,662 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] [2020-09-04 16:32:54,662 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-04 16:32:54,663 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:32:54,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:32:54,663 INFO L82 PathProgramCache]: Analyzing trace with hash -1037157879, now seen corresponding path program 1 times [2020-09-04 16:32:54,663 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:32:54,668 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1494387630] [2020-09-04 16:32:54,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:32:54,676 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:32:54,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:54,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:32:54,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:54,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:32:54,825 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1494387630] [2020-09-04 16:32:54,825 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:32:54,825 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 16:32:54,826 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416304690] [2020-09-04 16:32:54,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 16:32:54,826 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:32:54,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 16:32:54,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:32:54,827 INFO L87 Difference]: Start difference. First operand 4762 states and 5688 transitions. Second operand 3 states. [2020-09-04 16:32:55,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:32:55,439 INFO L93 Difference]: Finished difference Result 9788 states and 11817 transitions. [2020-09-04 16:32:55,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 16:32:55,440 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 247 [2020-09-04 16:32:55,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:32:55,492 INFO L225 Difference]: With dead ends: 9788 [2020-09-04 16:32:55,492 INFO L226 Difference]: Without dead ends: 5186 [2020-09-04 16:32:55,513 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 [2020-09-04 16:32:55,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5186 states. [2020-09-04 16:32:55,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5186 to 5078. [2020-09-04 16:32:55,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5078 states. [2020-09-04 16:32:55,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5078 states to 5078 states and 6024 transitions. [2020-09-04 16:32:55,906 INFO L78 Accepts]: Start accepts. Automaton has 5078 states and 6024 transitions. Word has length 247 [2020-09-04 16:32:55,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:32:55,906 INFO L479 AbstractCegarLoop]: Abstraction has 5078 states and 6024 transitions. [2020-09-04 16:32:55,906 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 16:32:55,907 INFO L276 IsEmpty]: Start isEmpty. Operand 5078 states and 6024 transitions. [2020-09-04 16:32:55,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2020-09-04 16:32:55,924 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:32:55,924 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] [2020-09-04 16:32:55,925 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-04 16:32:55,925 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:32:55,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:32:55,925 INFO L82 PathProgramCache]: Analyzing trace with hash 1741885973, now seen corresponding path program 1 times [2020-09-04 16:32:55,926 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:32:55,926 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [153735550] [2020-09-04 16:32:55,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:32:55,931 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:32:55,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:56,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:32:56,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:56,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:32:56,109 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [153735550] [2020-09-04 16:32:56,110 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:32:56,110 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-04 16:32:56,110 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565661067] [2020-09-04 16:32:56,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 16:32:56,111 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:32:56,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 16:32:56,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-04 16:32:56,111 INFO L87 Difference]: Start difference. First operand 5078 states and 6024 transitions. Second operand 5 states. [2020-09-04 16:32:57,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:32:57,210 INFO L93 Difference]: Finished difference Result 12400 states and 15021 transitions. [2020-09-04 16:32:57,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 16:32:57,211 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 266 [2020-09-04 16:32:57,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:32:57,232 INFO L225 Difference]: With dead ends: 12400 [2020-09-04 16:32:57,232 INFO L226 Difference]: Without dead ends: 7482 [2020-09-04 16:32:57,247 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 [2020-09-04 16:32:57,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7482 states. [2020-09-04 16:32:57,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7482 to 5835. [2020-09-04 16:32:57,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5835 states. [2020-09-04 16:32:57,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5835 states to 5835 states and 6908 transitions. [2020-09-04 16:32:57,864 INFO L78 Accepts]: Start accepts. Automaton has 5835 states and 6908 transitions. Word has length 266 [2020-09-04 16:32:57,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:32:57,865 INFO L479 AbstractCegarLoop]: Abstraction has 5835 states and 6908 transitions. [2020-09-04 16:32:57,865 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 16:32:57,865 INFO L276 IsEmpty]: Start isEmpty. Operand 5835 states and 6908 transitions. [2020-09-04 16:32:57,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-09-04 16:32:57,879 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:32:57,880 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] [2020-09-04 16:32:57,880 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-04 16:32:57,880 INFO L427 AbstractCegarLoop]: === Iteration 16 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:32:57,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:32:57,881 INFO L82 PathProgramCache]: Analyzing trace with hash -625071199, now seen corresponding path program 2 times [2020-09-04 16:32:57,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:32:57,881 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1748102956] [2020-09-04 16:32:57,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:32:57,888 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:32:57,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:57,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:32:57,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:58,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:32:58,007 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1748102956] [2020-09-04 16:32:58,007 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:32:58,008 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-04 16:32:58,008 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950336833] [2020-09-04 16:32:58,009 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 16:32:58,009 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:32:58,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 16:32:58,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-04 16:32:58,009 INFO L87 Difference]: Start difference. First operand 5835 states and 6908 transitions. Second operand 5 states. [2020-09-04 16:32:58,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:32:58,840 INFO L93 Difference]: Finished difference Result 9920 states and 11683 transitions. [2020-09-04 16:32:58,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 16:32:58,840 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 269 [2020-09-04 16:32:58,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:32:58,856 INFO L225 Difference]: With dead ends: 9920 [2020-09-04 16:32:58,856 INFO L226 Difference]: Without dead ends: 6999 [2020-09-04 16:32:58,865 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 [2020-09-04 16:32:58,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6999 states. [2020-09-04 16:32:59,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6999 to 5835. [2020-09-04 16:32:59,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5835 states. [2020-09-04 16:32:59,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5835 states to 5835 states and 6908 transitions. [2020-09-04 16:32:59,340 INFO L78 Accepts]: Start accepts. Automaton has 5835 states and 6908 transitions. Word has length 269 [2020-09-04 16:32:59,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:32:59,341 INFO L479 AbstractCegarLoop]: Abstraction has 5835 states and 6908 transitions. [2020-09-04 16:32:59,341 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 16:32:59,342 INFO L276 IsEmpty]: Start isEmpty. Operand 5835 states and 6908 transitions. [2020-09-04 16:32:59,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-09-04 16:32:59,355 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:32:59,355 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] [2020-09-04 16:32:59,356 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-04 16:32:59,356 INFO L427 AbstractCegarLoop]: === Iteration 17 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:32:59,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:32:59,356 INFO L82 PathProgramCache]: Analyzing trace with hash -555087791, now seen corresponding path program 1 times [2020-09-04 16:32:59,357 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:32:59,357 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1552593239] [2020-09-04 16:32:59,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:32:59,363 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:32:59,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:59,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:32:59,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:59,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:32:59,501 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1552593239] [2020-09-04 16:32:59,502 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:32:59,502 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 16:32:59,502 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371743391] [2020-09-04 16:32:59,503 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 16:32:59,503 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:32:59,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 16:32:59,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 16:32:59,504 INFO L87 Difference]: Start difference. First operand 5835 states and 6908 transitions. Second operand 4 states. [2020-09-04 16:33:00,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:33:00,653 INFO L93 Difference]: Finished difference Result 12249 states and 14602 transitions. [2020-09-04 16:33:00,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 16:33:00,654 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 269 [2020-09-04 16:33:00,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:33:00,682 INFO L225 Difference]: With dead ends: 12249 [2020-09-04 16:33:00,682 INFO L226 Difference]: Without dead ends: 9324 [2020-09-04 16:33:00,694 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 [2020-09-04 16:33:00,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9324 states. [2020-09-04 16:33:01,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9324 to 5907. [2020-09-04 16:33:01,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5907 states. [2020-09-04 16:33:01,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5907 states to 5907 states and 6996 transitions. [2020-09-04 16:33:01,275 INFO L78 Accepts]: Start accepts. Automaton has 5907 states and 6996 transitions. Word has length 269 [2020-09-04 16:33:01,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:33:01,276 INFO L479 AbstractCegarLoop]: Abstraction has 5907 states and 6996 transitions. [2020-09-04 16:33:01,276 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 16:33:01,276 INFO L276 IsEmpty]: Start isEmpty. Operand 5907 states and 6996 transitions. [2020-09-04 16:33:01,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-09-04 16:33:01,294 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:33:01,295 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] [2020-09-04 16:33:01,295 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-04 16:33:01,295 INFO L427 AbstractCegarLoop]: === Iteration 18 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:33:01,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:33:01,296 INFO L82 PathProgramCache]: Analyzing trace with hash 1985209329, now seen corresponding path program 3 times [2020-09-04 16:33:01,297 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:33:01,297 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1344898417] [2020-09-04 16:33:01,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:33:01,309 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:33:01,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:01,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:33:01,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:01,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:33:01,440 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1344898417] [2020-09-04 16:33:01,440 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:33:01,441 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-04 16:33:01,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750900147] [2020-09-04 16:33:01,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 16:33:01,442 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:33:01,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 16:33:01,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-04 16:33:01,443 INFO L87 Difference]: Start difference. First operand 5907 states and 6996 transitions. Second operand 5 states. [2020-09-04 16:33:02,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:33:02,374 INFO L93 Difference]: Finished difference Result 9604 states and 11323 transitions. [2020-09-04 16:33:02,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 16:33:02,374 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 269 [2020-09-04 16:33:02,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:33:02,388 INFO L225 Difference]: With dead ends: 9604 [2020-09-04 16:33:02,389 INFO L226 Difference]: Without dead ends: 6611 [2020-09-04 16:33:02,399 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 [2020-09-04 16:33:02,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6611 states. [2020-09-04 16:33:02,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6611 to 5987. [2020-09-04 16:33:02,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5987 states. [2020-09-04 16:33:02,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5987 states to 5987 states and 7084 transitions. [2020-09-04 16:33:02,845 INFO L78 Accepts]: Start accepts. Automaton has 5987 states and 7084 transitions. Word has length 269 [2020-09-04 16:33:02,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:33:02,845 INFO L479 AbstractCegarLoop]: Abstraction has 5987 states and 7084 transitions. [2020-09-04 16:33:02,845 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 16:33:02,846 INFO L276 IsEmpty]: Start isEmpty. Operand 5987 states and 7084 transitions. [2020-09-04 16:33:02,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2020-09-04 16:33:02,860 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:33:02,861 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] [2020-09-04 16:33:02,861 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-09-04 16:33:02,861 INFO L427 AbstractCegarLoop]: === Iteration 19 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:33:02,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:33:02,862 INFO L82 PathProgramCache]: Analyzing trace with hash -1391566917, now seen corresponding path program 1 times [2020-09-04 16:33:02,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:33:02,862 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [853186961] [2020-09-04 16:33:02,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:33:02,870 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:33:02,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:02,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:33:02,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:02,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:33:03,000 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [853186961] [2020-09-04 16:33:03,000 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:33:03,001 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 16:33:03,001 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506022434] [2020-09-04 16:33:03,002 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 16:33:03,002 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:33:03,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 16:33:03,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:33:03,003 INFO L87 Difference]: Start difference. First operand 5987 states and 7084 transitions. Second operand 3 states. [2020-09-04 16:33:04,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:33:04,063 INFO L93 Difference]: Finished difference Result 11173 states and 13253 transitions. [2020-09-04 16:33:04,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 16:33:04,064 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 271 [2020-09-04 16:33:04,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:33:04,077 INFO L225 Difference]: With dead ends: 11173 [2020-09-04 16:33:04,077 INFO L226 Difference]: Without dead ends: 6797 [2020-09-04 16:33:04,089 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 [2020-09-04 16:33:04,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6797 states. [2020-09-04 16:33:04,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6797 to 6797. [2020-09-04 16:33:04,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6797 states. [2020-09-04 16:33:04,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6797 states to 6797 states and 8036 transitions. [2020-09-04 16:33:04,702 INFO L78 Accepts]: Start accepts. Automaton has 6797 states and 8036 transitions. Word has length 271 [2020-09-04 16:33:04,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:33:04,703 INFO L479 AbstractCegarLoop]: Abstraction has 6797 states and 8036 transitions. [2020-09-04 16:33:04,705 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 16:33:04,705 INFO L276 IsEmpty]: Start isEmpty. Operand 6797 states and 8036 transitions. [2020-09-04 16:33:04,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2020-09-04 16:33:04,717 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:33:04,718 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] [2020-09-04 16:33:04,718 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-09-04 16:33:04,718 INFO L427 AbstractCegarLoop]: === Iteration 20 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:33:04,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:33:04,720 INFO L82 PathProgramCache]: Analyzing trace with hash -1703791530, now seen corresponding path program 1 times [2020-09-04 16:33:04,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:33:04,722 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [805666035] [2020-09-04 16:33:04,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:33:04,738 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:33:04,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 16:33:04,796 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 16:33:04,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 16:33:04,835 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 16:33:04,970 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 16:33:04,970 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 16:33:04,972 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-09-04 16:33:05,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 04:33:05 BoogieIcfgContainer [2020-09-04 16:33:05,029 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 16:33:05,033 INFO L168 Benchmark]: Toolchain (without parser) took 22934.72 ms. Allocated memory was 144.2 MB in the beginning and 1.1 GB in the end (delta: 974.1 MB). Free memory was 101.4 MB in the beginning and 297.8 MB in the end (delta: -196.4 MB). Peak memory consumption was 777.7 MB. Max. memory is 7.1 GB. [2020-09-04 16:33:05,038 INFO L168 Benchmark]: CDTParser took 1.00 ms. Allocated memory is still 144.2 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 16:33:05,039 INFO L168 Benchmark]: CACSL2BoogieTranslator took 601.24 ms. Allocated memory was 144.2 MB in the beginning and 201.3 MB in the end (delta: 57.1 MB). Free memory was 101.1 MB in the beginning and 176.8 MB in the end (delta: -75.6 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2020-09-04 16:33:05,042 INFO L168 Benchmark]: Boogie Preprocessor took 62.75 ms. Allocated memory is still 201.3 MB. Free memory was 176.8 MB in the beginning and 173.6 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. [2020-09-04 16:33:05,042 INFO L168 Benchmark]: RCFGBuilder took 931.50 ms. Allocated memory is still 201.3 MB. Free memory was 173.6 MB in the beginning and 110.4 MB in the end (delta: 63.2 MB). Peak memory consumption was 63.2 MB. Max. memory is 7.1 GB. [2020-09-04 16:33:05,043 INFO L168 Benchmark]: TraceAbstraction took 21330.02 ms. Allocated memory was 201.3 MB in the beginning and 1.1 GB in the end (delta: 917.0 MB). Free memory was 109.7 MB in the beginning and 297.8 MB in the end (delta: -188.1 MB). Peak memory consumption was 728.9 MB. Max. memory is 7.1 GB. [2020-09-04 16:33:05,049 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.00 ms. Allocated memory is still 144.2 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 601.24 ms. Allocated memory was 144.2 MB in the beginning and 201.3 MB in the end (delta: 57.1 MB). Free memory was 101.1 MB in the beginning and 176.8 MB in the end (delta: -75.6 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 62.75 ms. Allocated memory is still 201.3 MB. Free memory was 176.8 MB in the beginning and 173.6 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 931.50 ms. Allocated memory is still 201.3 MB. Free memory was 173.6 MB in the beginning and 110.4 MB in the end (delta: 63.2 MB). Peak memory consumption was 63.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 21330.02 ms. Allocated memory was 201.3 MB in the beginning and 1.1 GB in the end (delta: 917.0 MB). Free memory was 109.7 MB in the beginning and 297.8 MB in the end (delta: -188.1 MB). Peak memory consumption was 728.9 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: 21.1s, OverallIterations: 20, TraceHistogramMax: 6, AutomataDifference: 11.1s, 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, 2.2s 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: 5.9s 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...