/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/openssl-simplified/s3_clnt_3.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 17:15:27,744 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 17:15:27,761 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 17:15:27,824 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-20 17:15:27,859 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 17:15:27,860 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 17:15:27,861 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 17:15:27,861 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-03-20 17:15:27,869 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 17:15:27,869 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 17:15:27,870 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 17:15:27,871 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-20 17:15:27,871 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 17:15:27,871 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-20 17:15:27,871 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 17:15:27,871 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 17:15:27,872 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 17:15:27,872 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 17:15:27,872 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-20 17:15:27,872 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 17:15:27,872 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 17:15:27,872 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 17:15:27,873 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 17:15:27,873 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 17:15:27,873 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-20 17:15:27,873 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 17:15:27,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 17:15:27,874 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 17:15:27,874 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-20 17:15:27,874 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-03-20 17:15:27,874 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-03-20 17:15:27,874 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-20 17:15:27,874 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-03-20 17:15:27,875 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 17:15:28,122 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 17:15:28,142 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 17:15:28,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 17:15:28,145 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 17:15:28,146 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 17:15:28,147 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl-simplified/s3_clnt_3.cil-2.c [2022-03-20 17:15:28,208 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/376f6533c/ce1798beebb74e39a28ed054bbd1afc2/FLAGd71f0180d [2022-03-20 17:15:28,704 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 17:15:28,708 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_clnt_3.cil-2.c [2022-03-20 17:15:28,724 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/376f6533c/ce1798beebb74e39a28ed054bbd1afc2/FLAGd71f0180d [2022-03-20 17:15:29,212 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/376f6533c/ce1798beebb74e39a28ed054bbd1afc2 [2022-03-20 17:15:29,214 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 17:15:29,215 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-20 17:15:29,217 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 17:15:29,217 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 17:15:29,222 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 17:15:29,223 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 05:15:29" (1/1) ... [2022-03-20 17:15:29,224 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e5f4b2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:15:29, skipping insertion in model container [2022-03-20 17:15:29,224 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 05:15:29" (1/1) ... [2022-03-20 17:15:29,231 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 17:15:29,264 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 17:15:29,454 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_clnt_3.cil-2.c[37752,37765] [2022-03-20 17:15:29,460 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 17:15:29,466 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 17:15:29,515 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_clnt_3.cil-2.c[37752,37765] [2022-03-20 17:15:29,517 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 17:15:29,528 INFO L208 MainTranslator]: Completed translation [2022-03-20 17:15:29,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:15:29 WrapperNode [2022-03-20 17:15:29,529 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 17:15:29,530 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 17:15:29,530 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 17:15:29,530 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 17:15:29,540 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:15:29" (1/1) ... [2022-03-20 17:15:29,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:15:29" (1/1) ... [2022-03-20 17:15:29,549 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:15:29" (1/1) ... [2022-03-20 17:15:29,549 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:15:29" (1/1) ... [2022-03-20 17:15:29,559 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:15:29" (1/1) ... [2022-03-20 17:15:29,567 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:15:29" (1/1) ... [2022-03-20 17:15:29,570 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:15:29" (1/1) ... [2022-03-20 17:15:29,574 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 17:15:29,574 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 17:15:29,575 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 17:15:29,575 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 17:15:29,575 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:15:29" (1/1) ... [2022-03-20 17:15:29,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 17:15:29,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 17:15:29,617 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-20 17:15:29,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-20 17:15:29,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 17:15:29,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 17:15:29,661 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 17:15:29,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2022-03-20 17:15:29,662 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 17:15:29,662 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 17:15:29,662 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 17:15:29,662 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 17:15:29,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 17:15:29,663 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-20 17:15:29,663 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 17:15:29,663 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-20 17:15:29,666 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-20 17:15:29,666 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2022-03-20 17:15:29,666 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 17:15:29,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 17:15:29,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 17:15:29,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 17:15:29,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 17:15:29,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 17:15:29,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 17:15:29,811 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 17:15:29,812 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 17:15:29,924 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 17:15:30,269 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2022-03-20 17:15:30,270 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2022-03-20 17:15:30,272 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 17:15:30,282 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 17:15:30,282 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 17:15:30,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 05:15:30 BoogieIcfgContainer [2022-03-20 17:15:30,285 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 17:15:30,289 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 17:15:30,289 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 17:15:30,293 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 17:15:30,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 05:15:29" (1/3) ... [2022-03-20 17:15:30,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24c4fc2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 05:15:30, skipping insertion in model container [2022-03-20 17:15:30,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:15:29" (2/3) ... [2022-03-20 17:15:30,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24c4fc2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 05:15:30, skipping insertion in model container [2022-03-20 17:15:30,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 05:15:30" (3/3) ... [2022-03-20 17:15:30,297 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.cil-2.c [2022-03-20 17:15:30,302 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-20 17:15:30,302 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 17:15:30,337 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 17:15:30,346 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-20 17:15:30,346 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 17:15:30,370 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 129 states have (on average 1.697674418604651) internal successors, (219), 130 states have internal predecessors, (219), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-20 17:15:30,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-03-20 17:15:30,392 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:15:30,393 INFO L499 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] [2022-03-20 17:15:30,394 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:15:30,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:15:30,402 INFO L85 PathProgramCache]: Analyzing trace with hash -53499867, now seen corresponding path program 1 times [2022-03-20 17:15:30,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:15:30,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1030855218] [2022-03-20 17:15:30,427 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 17:15:30,427 INFO L85 PathProgramCache]: Analyzing trace with hash -53499867, now seen corresponding path program 2 times [2022-03-20 17:15:30,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:15:30,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392278732] [2022-03-20 17:15:30,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:15:30,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:15:30,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:15:30,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:15:30,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:15:30,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 17:15:30,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:15:30,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392278732] [2022-03-20 17:15:30,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392278732] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:15:30,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:15:30,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:15:30,757 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:15:30,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1030855218] [2022-03-20 17:15:30,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1030855218] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:15:30,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:15:30,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:15:30,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881881889] [2022-03-20 17:15:30,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:15:30,768 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 17:15:30,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:15:30,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 17:15:30,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 17:15:30,836 INFO L87 Difference]: Start difference. First operand has 137 states, 129 states have (on average 1.697674418604651) internal successors, (219), 130 states have internal predecessors, (219), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:15:31,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:15:31,263 INFO L93 Difference]: Finished difference Result 376 states and 631 transitions. [2022-03-20 17:15:31,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 17:15:31,266 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2022-03-20 17:15:31,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:15:31,275 INFO L225 Difference]: With dead ends: 376 [2022-03-20 17:15:31,275 INFO L226 Difference]: Without dead ends: 219 [2022-03-20 17:15:31,280 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:15:31,283 INFO L913 BasicCegarLoop]: 215 mSDtfsCounter, 578 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-20 17:15:31,284 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [580 Valid, 224 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-20 17:15:31,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-03-20 17:15:31,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2022-03-20 17:15:31,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 214 states have (on average 1.4906542056074767) internal successors, (319), 214 states have internal predecessors, (319), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:15:31,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 323 transitions. [2022-03-20 17:15:31,339 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 323 transitions. Word has length 30 [2022-03-20 17:15:31,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:15:31,340 INFO L478 AbstractCegarLoop]: Abstraction has 219 states and 323 transitions. [2022-03-20 17:15:31,340 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:15:31,340 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 323 transitions. [2022-03-20 17:15:31,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-03-20 17:15:31,342 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:15:31,342 INFO L499 BasicCegarLoop]: trace histogram [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] [2022-03-20 17:15:31,343 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 17:15:31,343 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:15:31,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:15:31,343 INFO L85 PathProgramCache]: Analyzing trace with hash -67654802, now seen corresponding path program 1 times [2022-03-20 17:15:31,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:15:31,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1087455695] [2022-03-20 17:15:31,345 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 17:15:31,345 INFO L85 PathProgramCache]: Analyzing trace with hash -67654802, now seen corresponding path program 2 times [2022-03-20 17:15:31,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:15:31,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131993198] [2022-03-20 17:15:31,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:15:31,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:15:31,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:15:31,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:15:31,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:15:31,427 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 17:15:31,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:15:31,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131993198] [2022-03-20 17:15:31,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131993198] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:15:31,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:15:31,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:15:31,432 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:15:31,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1087455695] [2022-03-20 17:15:31,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1087455695] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:15:31,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:15:31,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:15:31,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938420299] [2022-03-20 17:15:31,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:15:31,435 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 17:15:31,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:15:31,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 17:15:31,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 17:15:31,436 INFO L87 Difference]: Start difference. First operand 219 states and 323 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:15:31,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:15:31,714 INFO L93 Difference]: Finished difference Result 351 states and 525 transitions. [2022-03-20 17:15:31,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 17:15:31,717 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2022-03-20 17:15:31,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:15:31,727 INFO L225 Difference]: With dead ends: 351 [2022-03-20 17:15:31,728 INFO L226 Difference]: Without dead ends: 246 [2022-03-20 17:15:31,731 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:15:31,732 INFO L913 BasicCegarLoop]: 186 mSDtfsCounter, 193 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-20 17:15:31,733 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [193 Valid, 193 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-20 17:15:31,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2022-03-20 17:15:31,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 236. [2022-03-20 17:15:31,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 231 states have (on average 1.4761904761904763) internal successors, (341), 231 states have internal predecessors, (341), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:15:31,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 345 transitions. [2022-03-20 17:15:31,779 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 345 transitions. Word has length 44 [2022-03-20 17:15:31,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:15:31,780 INFO L478 AbstractCegarLoop]: Abstraction has 236 states and 345 transitions. [2022-03-20 17:15:31,780 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:15:31,781 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 345 transitions. [2022-03-20 17:15:31,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-03-20 17:15:31,788 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:15:31,789 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2022-03-20 17:15:31,789 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 17:15:31,789 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:15:31,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:15:31,790 INFO L85 PathProgramCache]: Analyzing trace with hash 784495084, now seen corresponding path program 1 times [2022-03-20 17:15:31,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:15:31,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1993924669] [2022-03-20 17:15:31,795 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 17:15:31,795 INFO L85 PathProgramCache]: Analyzing trace with hash 784495084, now seen corresponding path program 2 times [2022-03-20 17:15:31,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:15:31,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026519927] [2022-03-20 17:15:31,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:15:31,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:15:31,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:15:31,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:15:31,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:15:31,914 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-20 17:15:31,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:15:31,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026519927] [2022-03-20 17:15:31,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026519927] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:15:31,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:15:31,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:15:31,915 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:15:31,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1993924669] [2022-03-20 17:15:31,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1993924669] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:15:31,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:15:31,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:15:31,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008422870] [2022-03-20 17:15:31,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:15:31,916 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 17:15:31,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:15:31,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 17:15:31,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 17:15:31,917 INFO L87 Difference]: Start difference. First operand 236 states and 345 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:15:32,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:15:32,213 INFO L93 Difference]: Finished difference Result 561 states and 851 transitions. [2022-03-20 17:15:32,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 17:15:32,213 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 61 [2022-03-20 17:15:32,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:15:32,215 INFO L225 Difference]: With dead ends: 561 [2022-03-20 17:15:32,216 INFO L226 Difference]: Without dead ends: 336 [2022-03-20 17:15:32,216 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:15:32,217 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 209 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-20 17:15:32,218 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [209 Valid, 204 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-20 17:15:32,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2022-03-20 17:15:32,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 318. [2022-03-20 17:15:32,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 313 states have (on average 1.4089456869009584) internal successors, (441), 313 states have internal predecessors, (441), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:15:32,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 445 transitions. [2022-03-20 17:15:32,239 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 445 transitions. Word has length 61 [2022-03-20 17:15:32,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:15:32,240 INFO L478 AbstractCegarLoop]: Abstraction has 318 states and 445 transitions. [2022-03-20 17:15:32,240 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:15:32,240 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 445 transitions. [2022-03-20 17:15:32,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-03-20 17:15:32,241 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:15:32,241 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2022-03-20 17:15:32,242 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-20 17:15:32,242 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:15:32,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:15:32,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1020943250, now seen corresponding path program 1 times [2022-03-20 17:15:32,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:15:32,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [105536215] [2022-03-20 17:15:32,243 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 17:15:32,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1020943250, now seen corresponding path program 2 times [2022-03-20 17:15:32,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:15:32,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616235296] [2022-03-20 17:15:32,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:15:32,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:15:32,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:15:32,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:15:32,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:15:32,332 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-20 17:15:32,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:15:32,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616235296] [2022-03-20 17:15:32,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616235296] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:15:32,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:15:32,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:15:32,333 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:15:32,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [105536215] [2022-03-20 17:15:32,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [105536215] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:15:32,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:15:32,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:15:32,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531645619] [2022-03-20 17:15:32,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:15:32,334 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 17:15:32,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:15:32,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 17:15:32,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 17:15:32,335 INFO L87 Difference]: Start difference. First operand 318 states and 445 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:15:32,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:15:32,546 INFO L93 Difference]: Finished difference Result 671 states and 954 transitions. [2022-03-20 17:15:32,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 17:15:32,547 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 61 [2022-03-20 17:15:32,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:15:32,549 INFO L225 Difference]: With dead ends: 671 [2022-03-20 17:15:32,549 INFO L226 Difference]: Without dead ends: 366 [2022-03-20 17:15:32,551 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:15:32,553 INFO L913 BasicCegarLoop]: 187 mSDtfsCounter, 191 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-20 17:15:32,554 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [191 Valid, 194 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-20 17:15:32,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2022-03-20 17:15:32,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 356. [2022-03-20 17:15:32,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 351 states have (on average 1.393162393162393) internal successors, (489), 351 states have internal predecessors, (489), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:15:32,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 493 transitions. [2022-03-20 17:15:32,594 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 493 transitions. Word has length 61 [2022-03-20 17:15:32,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:15:32,594 INFO L478 AbstractCegarLoop]: Abstraction has 356 states and 493 transitions. [2022-03-20 17:15:32,594 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:15:32,595 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 493 transitions. [2022-03-20 17:15:32,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-03-20 17:15:32,597 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:15:32,597 INFO L499 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] [2022-03-20 17:15:32,597 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-20 17:15:32,598 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:15:32,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:15:32,598 INFO L85 PathProgramCache]: Analyzing trace with hash 833035925, now seen corresponding path program 1 times [2022-03-20 17:15:32,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:15:32,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1628684709] [2022-03-20 17:15:32,599 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 17:15:32,599 INFO L85 PathProgramCache]: Analyzing trace with hash 833035925, now seen corresponding path program 2 times [2022-03-20 17:15:32,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:15:32,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247571991] [2022-03-20 17:15:32,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:15:32,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:15:32,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:15:32,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:15:32,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:15:32,648 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-20 17:15:32,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:15:32,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247571991] [2022-03-20 17:15:32,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247571991] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:15:32,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:15:32,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:15:32,649 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:15:32,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1628684709] [2022-03-20 17:15:32,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1628684709] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:15:32,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:15:32,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:15:32,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090857772] [2022-03-20 17:15:32,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:15:32,650 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 17:15:32,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:15:32,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 17:15:32,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 17:15:32,651 INFO L87 Difference]: Start difference. First operand 356 states and 493 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:15:32,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:15:32,855 INFO L93 Difference]: Finished difference Result 805 states and 1153 transitions. [2022-03-20 17:15:32,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 17:15:32,856 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 74 [2022-03-20 17:15:32,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:15:32,858 INFO L225 Difference]: With dead ends: 805 [2022-03-20 17:15:32,858 INFO L226 Difference]: Without dead ends: 460 [2022-03-20 17:15:32,859 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:15:32,860 INFO L913 BasicCegarLoop]: 174 mSDtfsCounter, 295 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-20 17:15:32,860 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [295 Valid, 181 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-20 17:15:32,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2022-03-20 17:15:32,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 434. [2022-03-20 17:15:32,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 429 states have (on average 1.4522144522144522) internal successors, (623), 429 states have internal predecessors, (623), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:15:32,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 627 transitions. [2022-03-20 17:15:32,888 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 627 transitions. Word has length 74 [2022-03-20 17:15:32,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:15:32,889 INFO L478 AbstractCegarLoop]: Abstraction has 434 states and 627 transitions. [2022-03-20 17:15:32,889 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:15:32,889 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 627 transitions. [2022-03-20 17:15:32,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-03-20 17:15:32,890 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:15:32,890 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 17:15:32,890 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-20 17:15:32,890 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:15:32,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:15:32,891 INFO L85 PathProgramCache]: Analyzing trace with hash 35365114, now seen corresponding path program 1 times [2022-03-20 17:15:32,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:15:32,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [489646193] [2022-03-20 17:15:32,892 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 17:15:32,892 INFO L85 PathProgramCache]: Analyzing trace with hash 35365114, now seen corresponding path program 2 times [2022-03-20 17:15:32,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:15:32,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62656228] [2022-03-20 17:15:32,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:15:32,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:15:32,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:15:32,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:15:32,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:15:32,938 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-03-20 17:15:32,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:15:32,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62656228] [2022-03-20 17:15:32,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62656228] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:15:32,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:15:32,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:15:32,939 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:15:32,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [489646193] [2022-03-20 17:15:32,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [489646193] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:15:32,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:15:32,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:15:32,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740368157] [2022-03-20 17:15:32,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:15:32,940 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 17:15:32,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:15:32,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 17:15:32,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 17:15:32,941 INFO L87 Difference]: Start difference. First operand 434 states and 627 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:15:33,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:15:33,157 INFO L93 Difference]: Finished difference Result 903 states and 1314 transitions. [2022-03-20 17:15:33,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 17:15:33,158 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 78 [2022-03-20 17:15:33,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:15:33,160 INFO L225 Difference]: With dead ends: 903 [2022-03-20 17:15:33,160 INFO L226 Difference]: Without dead ends: 482 [2022-03-20 17:15:33,161 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:15:33,162 INFO L913 BasicCegarLoop]: 186 mSDtfsCounter, 185 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-20 17:15:33,162 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [185 Valid, 193 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-20 17:15:33,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2022-03-20 17:15:33,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 476. [2022-03-20 17:15:33,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 471 states have (on average 1.4331210191082802) internal successors, (675), 471 states have internal predecessors, (675), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:15:33,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 679 transitions. [2022-03-20 17:15:33,193 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 679 transitions. Word has length 78 [2022-03-20 17:15:33,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:15:33,193 INFO L478 AbstractCegarLoop]: Abstraction has 476 states and 679 transitions. [2022-03-20 17:15:33,193 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:15:33,193 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 679 transitions. [2022-03-20 17:15:33,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-03-20 17:15:33,194 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:15:33,195 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 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] [2022-03-20 17:15:33,195 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-20 17:15:33,195 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:15:33,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:15:33,195 INFO L85 PathProgramCache]: Analyzing trace with hash -810093392, now seen corresponding path program 1 times [2022-03-20 17:15:33,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:15:33,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1706011572] [2022-03-20 17:15:33,196 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 17:15:33,196 INFO L85 PathProgramCache]: Analyzing trace with hash -810093392, now seen corresponding path program 2 times [2022-03-20 17:15:33,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:15:33,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663927254] [2022-03-20 17:15:33,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:15:33,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:15:33,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:15:33,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:15:33,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:15:33,263 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-03-20 17:15:33,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:15:33,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663927254] [2022-03-20 17:15:33,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663927254] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:15:33,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:15:33,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:15:33,264 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:15:33,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1706011572] [2022-03-20 17:15:33,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1706011572] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:15:33,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:15:33,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:15:33,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272730669] [2022-03-20 17:15:33,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:15:33,265 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 17:15:33,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:15:33,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 17:15:33,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 17:15:33,266 INFO L87 Difference]: Start difference. First operand 476 states and 679 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:15:33,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:15:33,559 INFO L93 Difference]: Finished difference Result 957 states and 1371 transitions. [2022-03-20 17:15:33,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 17:15:33,560 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 98 [2022-03-20 17:15:33,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:15:33,563 INFO L225 Difference]: With dead ends: 957 [2022-03-20 17:15:33,563 INFO L226 Difference]: Without dead ends: 715 [2022-03-20 17:15:33,564 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:15:33,565 INFO L913 BasicCegarLoop]: 317 mSDtfsCounter, 288 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-20 17:15:33,565 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [288 Valid, 324 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-20 17:15:33,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2022-03-20 17:15:33,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 715. [2022-03-20 17:15:33,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 710 states have (on average 1.4281690140845071) internal successors, (1014), 710 states have internal predecessors, (1014), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:15:33,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 1018 transitions. [2022-03-20 17:15:33,613 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 1018 transitions. Word has length 98 [2022-03-20 17:15:33,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:15:33,613 INFO L478 AbstractCegarLoop]: Abstraction has 715 states and 1018 transitions. [2022-03-20 17:15:33,613 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:15:33,613 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 1018 transitions. [2022-03-20 17:15:33,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-03-20 17:15:33,615 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:15:33,615 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 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] [2022-03-20 17:15:33,615 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-20 17:15:33,615 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:15:33,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:15:33,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1903322539, now seen corresponding path program 1 times [2022-03-20 17:15:33,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:15:33,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [878710352] [2022-03-20 17:15:33,616 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 17:15:33,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1903322539, now seen corresponding path program 2 times [2022-03-20 17:15:33,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:15:33,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934917139] [2022-03-20 17:15:33,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:15:33,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:15:33,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:15:33,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:15:33,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:15:33,656 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-20 17:15:33,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:15:33,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934917139] [2022-03-20 17:15:33,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934917139] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:15:33,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:15:33,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:15:33,657 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:15:33,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [878710352] [2022-03-20 17:15:33,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [878710352] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:15:33,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:15:33,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:15:33,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146883888] [2022-03-20 17:15:33,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:15:33,658 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 17:15:33,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:15:33,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 17:15:33,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 17:15:33,659 INFO L87 Difference]: Start difference. First operand 715 states and 1018 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:15:33,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:15:33,862 INFO L93 Difference]: Finished difference Result 1217 states and 1732 transitions. [2022-03-20 17:15:33,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 17:15:33,862 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 99 [2022-03-20 17:15:33,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:15:33,865 INFO L225 Difference]: With dead ends: 1217 [2022-03-20 17:15:33,866 INFO L226 Difference]: Without dead ends: 736 [2022-03-20 17:15:33,867 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:15:33,867 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 183 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-20 17:15:33,868 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 204 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-20 17:15:33,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2022-03-20 17:15:33,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 736. [2022-03-20 17:15:33,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 731 states have (on average 1.424076607387141) internal successors, (1041), 731 states have internal predecessors, (1041), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:15:33,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 1045 transitions. [2022-03-20 17:15:33,912 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 1045 transitions. Word has length 99 [2022-03-20 17:15:33,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:15:33,912 INFO L478 AbstractCegarLoop]: Abstraction has 736 states and 1045 transitions. [2022-03-20 17:15:33,912 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:15:33,913 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 1045 transitions. [2022-03-20 17:15:33,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-03-20 17:15:33,914 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:15:33,914 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 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] [2022-03-20 17:15:33,914 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-20 17:15:33,915 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:15:33,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:15:33,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1355647686, now seen corresponding path program 1 times [2022-03-20 17:15:33,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:15:33,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1155437029] [2022-03-20 17:15:33,916 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 17:15:33,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1355647686, now seen corresponding path program 2 times [2022-03-20 17:15:33,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:15:33,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157497651] [2022-03-20 17:15:33,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:15:33,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:15:33,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:15:33,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:15:33,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:15:33,958 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-03-20 17:15:33,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:15:33,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157497651] [2022-03-20 17:15:33,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157497651] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:15:33,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:15:33,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:15:33,959 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:15:33,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1155437029] [2022-03-20 17:15:33,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1155437029] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:15:33,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:15:33,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:15:33,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382159019] [2022-03-20 17:15:33,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:15:33,960 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 17:15:33,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:15:33,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 17:15:33,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 17:15:33,960 INFO L87 Difference]: Start difference. First operand 736 states and 1045 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:15:34,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:15:34,186 INFO L93 Difference]: Finished difference Result 1263 states and 1789 transitions. [2022-03-20 17:15:34,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 17:15:34,187 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 100 [2022-03-20 17:15:34,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:15:34,190 INFO L225 Difference]: With dead ends: 1263 [2022-03-20 17:15:34,190 INFO L226 Difference]: Without dead ends: 761 [2022-03-20 17:15:34,191 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:15:34,192 INFO L913 BasicCegarLoop]: 203 mSDtfsCounter, 179 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-20 17:15:34,192 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 210 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-20 17:15:34,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2022-03-20 17:15:34,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 761. [2022-03-20 17:15:34,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 761 states, 756 states have (on average 1.4166666666666667) internal successors, (1071), 756 states have internal predecessors, (1071), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:15:34,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 761 states to 761 states and 1075 transitions. [2022-03-20 17:15:34,235 INFO L78 Accepts]: Start accepts. Automaton has 761 states and 1075 transitions. Word has length 100 [2022-03-20 17:15:34,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:15:34,236 INFO L478 AbstractCegarLoop]: Abstraction has 761 states and 1075 transitions. [2022-03-20 17:15:34,236 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:15:34,236 INFO L276 IsEmpty]: Start isEmpty. Operand 761 states and 1075 transitions. [2022-03-20 17:15:34,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-03-20 17:15:34,237 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:15:34,237 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 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] [2022-03-20 17:15:34,238 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-20 17:15:34,238 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:15:34,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:15:34,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1221634180, now seen corresponding path program 1 times [2022-03-20 17:15:34,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:15:34,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [34263086] [2022-03-20 17:15:34,239 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 17:15:34,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1221634180, now seen corresponding path program 2 times [2022-03-20 17:15:34,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:15:34,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547796645] [2022-03-20 17:15:34,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:15:34,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:15:34,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:15:34,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:15:34,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:15:34,293 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-03-20 17:15:34,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:15:34,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547796645] [2022-03-20 17:15:34,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547796645] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:15:34,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:15:34,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 17:15:34,293 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:15:34,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [34263086] [2022-03-20 17:15:34,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [34263086] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:15:34,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:15:34,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 17:15:34,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835615318] [2022-03-20 17:15:34,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:15:34,294 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 17:15:34,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:15:34,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 17:15:34,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:15:34,295 INFO L87 Difference]: Start difference. First operand 761 states and 1075 transitions. Second operand has 6 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:15:34,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:15:34,644 INFO L93 Difference]: Finished difference Result 1570 states and 2231 transitions. [2022-03-20 17:15:34,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 17:15:34,645 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 100 [2022-03-20 17:15:34,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:15:34,648 INFO L225 Difference]: With dead ends: 1570 [2022-03-20 17:15:34,648 INFO L226 Difference]: Without dead ends: 794 [2022-03-20 17:15:34,650 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-20 17:15:34,650 INFO L913 BasicCegarLoop]: 150 mSDtfsCounter, 454 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-20 17:15:34,651 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [454 Valid, 167 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-20 17:15:34,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2022-03-20 17:15:34,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 767. [2022-03-20 17:15:34,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 767 states, 762 states have (on average 1.416010498687664) internal successors, (1079), 762 states have internal predecessors, (1079), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:15:34,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 767 states to 767 states and 1083 transitions. [2022-03-20 17:15:34,718 INFO L78 Accepts]: Start accepts. Automaton has 767 states and 1083 transitions. Word has length 100 [2022-03-20 17:15:34,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:15:34,719 INFO L478 AbstractCegarLoop]: Abstraction has 767 states and 1083 transitions. [2022-03-20 17:15:34,719 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:15:34,719 INFO L276 IsEmpty]: Start isEmpty. Operand 767 states and 1083 transitions. [2022-03-20 17:15:34,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-03-20 17:15:34,723 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:15:34,723 INFO L499 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] [2022-03-20 17:15:34,724 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-20 17:15:34,724 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:15:34,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:15:34,724 INFO L85 PathProgramCache]: Analyzing trace with hash 555468563, now seen corresponding path program 1 times [2022-03-20 17:15:34,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:15:34,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [667892014] [2022-03-20 17:15:34,725 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 17:15:34,726 INFO L85 PathProgramCache]: Analyzing trace with hash 555468563, now seen corresponding path program 2 times [2022-03-20 17:15:34,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:15:34,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274547955] [2022-03-20 17:15:34,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:15:34,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:15:34,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-20 17:15:34,797 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-20 17:15:34,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-20 17:15:34,910 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-20 17:15:34,910 INFO L130 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found a feasible trace [2022-03-20 17:15:34,910 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-03-20 17:15:34,914 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-03-20 17:15:34,916 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-20 17:15:34,919 INFO L719 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2] [2022-03-20 17:15:34,922 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-20 17:15:34,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 05:15:34 BoogieIcfgContainer [2022-03-20 17:15:34,942 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-20 17:15:34,943 INFO L158 Benchmark]: Toolchain (without parser) took 5727.64ms. Allocated memory was 185.6MB in the beginning and 335.5MB in the end (delta: 149.9MB). Free memory was 131.4MB in the beginning and 278.2MB in the end (delta: -146.8MB). Peak memory consumption was 3.8MB. Max. memory is 8.0GB. [2022-03-20 17:15:34,943 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 185.6MB. Free memory is still 148.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-20 17:15:34,943 INFO L158 Benchmark]: CACSL2BoogieTranslator took 312.41ms. Allocated memory is still 185.6MB. Free memory was 131.2MB in the beginning and 157.2MB in the end (delta: -25.9MB). Peak memory consumption was 11.1MB. Max. memory is 8.0GB. [2022-03-20 17:15:34,943 INFO L158 Benchmark]: Boogie Preprocessor took 44.07ms. Allocated memory is still 185.6MB. Free memory was 157.2MB in the beginning and 154.6MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-03-20 17:15:34,944 INFO L158 Benchmark]: RCFGBuilder took 710.84ms. Allocated memory is still 185.6MB. Free memory was 154.6MB in the beginning and 128.4MB in the end (delta: 26.2MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2022-03-20 17:15:34,944 INFO L158 Benchmark]: TraceAbstraction took 4653.61ms. Allocated memory was 185.6MB in the beginning and 335.5MB in the end (delta: 149.9MB). Free memory was 127.9MB in the beginning and 278.2MB in the end (delta: -150.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-20 17:15:34,945 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 185.6MB. Free memory is still 148.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 312.41ms. Allocated memory is still 185.6MB. Free memory was 131.2MB in the beginning and 157.2MB in the end (delta: -25.9MB). Peak memory consumption was 11.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 44.07ms. Allocated memory is still 185.6MB. Free memory was 157.2MB in the beginning and 154.6MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 710.84ms. Allocated memory is still 185.6MB. Free memory was 154.6MB in the beginning and 128.4MB in the end (delta: 26.2MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. * TraceAbstraction took 4653.61ms. Allocated memory was 185.6MB in the beginning and 335.5MB in the end (delta: 149.9MB). Free memory was 127.9MB in the beginning and 278.2MB in the end (delta: -150.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 585]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L590] int s ; [L594] s = 12292 [L595] CALL ssl3_connect(s) [L24] int s__info_callback = __VERIFIER_nondet_int() ; [L25] int s__in_handshake = __VERIFIER_nondet_int() ; [L26] int s__state ; [L27] int s__new_session ; [L28] int s__server ; [L29] int s__version = __VERIFIER_nondet_int() ; [L30] int s__type ; [L31] int s__init_num ; [L32] int s__bbio = __VERIFIER_nondet_int() ; [L33] int s__wbio = __VERIFIER_nondet_int() ; [L34] int s__hit = __VERIFIER_nondet_int() ; [L35] int s__rwstate ; [L36] int s__init_buf___0 = __VERIFIER_nondet_int() ; [L37] int s__debug = __VERIFIER_nondet_int() ; [L38] int s__shutdown ; [L39] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L40] int s__ctx__stats__sess_connect_renegotiate = __VERIFIER_nondet_int() ; [L41] int s__ctx__stats__sess_connect = __VERIFIER_nondet_int() ; [L42] int s__ctx__stats__sess_hit = __VERIFIER_nondet_int() ; [L43] int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_int() ; [L44] int s__s3__change_cipher_spec ; [L45] int s__s3__flags = __VERIFIER_nondet_int() ; [L46] int s__s3__delay_buf_pop_ret ; [L47] int s__s3__tmp__cert_req = __VERIFIER_nondet_int() ; [L48] int s__s3__tmp__new_compression = __VERIFIER_nondet_int() ; [L49] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int() ; [L50] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L51] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() ; [L52] int s__s3__tmp__next_state___0 ; [L53] int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int() ; [L54] int s__session__cipher ; [L55] int s__session__compress_meth ; [L56] int buf ; [L57] unsigned long tmp ; [L58] unsigned long l ; [L59] int num1 = __VERIFIER_nondet_int() ; [L60] int cb ; [L61] int ret ; [L62] int new_state ; [L63] int state ; [L64] int skip ; [L65] int tmp___0 ; [L66] int tmp___1 = __VERIFIER_nondet_int() ; [L67] int tmp___2 = __VERIFIER_nondet_int() ; [L68] int tmp___3 = __VERIFIER_nondet_int() ; [L69] int tmp___4 = __VERIFIER_nondet_int() ; [L70] int tmp___5 = __VERIFIER_nondet_int() ; [L71] int tmp___6 = __VERIFIER_nondet_int() ; [L72] int tmp___7 = __VERIFIER_nondet_int() ; [L73] int tmp___8 = __VERIFIER_nondet_int() ; [L74] int tmp___9 = __VERIFIER_nondet_int() ; [L75] int blastFlag ; [L76] int __cil_tmp55 ; [L77] void *__cil_tmp56 ; [L78] unsigned long __cil_tmp57 ; [L79] unsigned long __cil_tmp58 = __VERIFIER_nondet_ulong() ; [L80] void *__cil_tmp59 ; [L81] unsigned long __cil_tmp60 ; [L82] unsigned long __cil_tmp61 ; [L83] unsigned long __cil_tmp62 ; [L84] unsigned long __cil_tmp63 ; [L85] unsigned long __cil_tmp64 ; [L86] long __cil_tmp65 = __VERIFIER_nondet_long() ; [L87] long __cil_tmp66 ; [L88] long __cil_tmp67 ; [L89] long __cil_tmp68 ; [L90] long __cil_tmp69 ; [L91] long __cil_tmp70 = __VERIFIER_nondet_long() ; [L92] long __cil_tmp71 ; [L93] long __cil_tmp72 ; [L94] long __cil_tmp73 ; [L95] long __cil_tmp74 ; [L99] s__state = initial_state [L100] blastFlag = 0 [L101] tmp = __VERIFIER_nondet_int() [L102] cb = 0 [L103] ret = -1 [L104] skip = 0 [L105] tmp___0 = 0 [L106] COND TRUE s__info_callback != 0 [L107] cb = s__info_callback [L113] s__in_handshake ++ [L114] COND FALSE !(tmp___1 + 12288) [L120] COND TRUE 1 [L122] state = s__state [L123] COND TRUE s__state == 12292 [L225] s__new_session = 1 [L226] s__state = 4096 [L227] s__ctx__stats__sess_connect_renegotiate ++ [L232] s__server = 0 [L233] COND TRUE cb != 0 [L237] __cil_tmp55 = s__version + 65280 [L238] COND FALSE !(__cil_tmp55 != 768) [L243] s__type = 4096 [L245] __cil_tmp56 = (void *)0 [L246] __cil_tmp57 = (unsigned long )__cil_tmp56 [L247] __cil_tmp58 = (unsigned long )s__init_buf___0 [L248] COND FALSE !(__cil_tmp58 == __cil_tmp57) [L266] COND FALSE !(! tmp___4) [L270] COND FALSE !(! tmp___5) [L274] s__state = 4368 [L275] s__ctx__stats__sess_connect ++ [L276] s__init_num = 0 [L557] COND FALSE !(! s__s3__tmp__reuse_message) [L574] skip = 0 [L120] COND TRUE 1 [L122] state = s__state [L123] COND FALSE !(s__state == 12292) [L126] COND FALSE !(s__state == 16384) [L129] COND FALSE !(s__state == 4096) [L132] COND FALSE !(s__state == 20480) [L135] COND FALSE !(s__state == 4099) [L138] COND TRUE s__state == 4368 [L280] s__shutdown = 0 [L281] ret = __VERIFIER_nondet_int() [L282] COND TRUE blastFlag == 0 [L283] blastFlag = 1 [L285] COND FALSE !(ret <= 0) [L288] s__state = 4384 [L289] s__init_num = 0 [L291] __cil_tmp62 = (unsigned long )s__wbio [L292] __cil_tmp63 = (unsigned long )s__bbio [L293] COND TRUE __cil_tmp63 != __cil_tmp62 [L557] COND FALSE !(! s__s3__tmp__reuse_message) [L574] skip = 0 [L120] COND TRUE 1 [L122] state = s__state [L123] COND FALSE !(s__state == 12292) [L126] COND FALSE !(s__state == 16384) [L129] COND FALSE !(s__state == 4096) [L132] COND FALSE !(s__state == 20480) [L135] COND FALSE !(s__state == 4099) [L138] COND FALSE !(s__state == 4368) [L141] COND FALSE !(s__state == 4369) [L144] COND TRUE s__state == 4384 [L300] ret = __VERIFIER_nondet_int() [L301] COND TRUE blastFlag == 1 [L302] blastFlag = 2 [L308] COND FALSE !(ret <= 0) [L311] COND FALSE !(\read(s__hit)) [L314] s__state = 4400 [L316] s__init_num = 0 [L557] COND FALSE !(! s__s3__tmp__reuse_message) [L574] skip = 0 [L120] COND TRUE 1 [L122] state = s__state [L123] COND FALSE !(s__state == 12292) [L126] COND FALSE !(s__state == 16384) [L129] COND FALSE !(s__state == 4096) [L132] COND FALSE !(s__state == 20480) [L135] COND FALSE !(s__state == 4099) [L138] COND FALSE !(s__state == 4368) [L141] COND FALSE !(s__state == 4369) [L144] COND FALSE !(s__state == 4384) [L147] COND FALSE !(s__state == 4385) [L150] COND TRUE s__state == 4400 [L321] __cil_tmp64 = (unsigned long )s__s3__tmp__new_cipher__algorithms [L322] COND FALSE !(__cil_tmp64 + 256UL) [L325] ret = __VERIFIER_nondet_int() [L326] COND TRUE blastFlag == 2 [L327] blastFlag = 3 [L329] COND FALSE !(ret <= 0) [L334] s__state = 4416 [L335] s__init_num = 0 [L557] COND FALSE !(! s__s3__tmp__reuse_message) [L574] skip = 0 [L120] COND TRUE 1 [L122] state = s__state [L123] COND FALSE !(s__state == 12292) [L126] COND FALSE !(s__state == 16384) [L129] COND FALSE !(s__state == 4096) [L132] COND FALSE !(s__state == 20480) [L135] COND FALSE !(s__state == 4099) [L138] COND FALSE !(s__state == 4368) [L141] COND FALSE !(s__state == 4369) [L144] COND FALSE !(s__state == 4384) [L147] COND FALSE !(s__state == 4385) [L150] COND FALSE !(s__state == 4400) [L153] COND FALSE !(s__state == 4401) [L156] COND TRUE s__state == 4416 [L339] ret = __VERIFIER_nondet_int() [L340] COND TRUE blastFlag == 3 [L341] blastFlag = 4 [L343] COND FALSE !(ret <= 0) [L346] s__state = 4432 [L347] s__init_num = 0 [L348] COND FALSE !(! tmp___6) [L557] COND FALSE !(! s__s3__tmp__reuse_message) [L574] skip = 0 [L120] COND TRUE 1 [L122] state = s__state [L123] COND FALSE !(s__state == 12292) [L126] COND FALSE !(s__state == 16384) [L129] COND FALSE !(s__state == 4096) [L132] COND FALSE !(s__state == 20480) [L135] COND FALSE !(s__state == 4099) [L138] COND FALSE !(s__state == 4368) [L141] COND FALSE !(s__state == 4369) [L144] COND FALSE !(s__state == 4384) [L147] COND FALSE !(s__state == 4385) [L150] COND FALSE !(s__state == 4400) [L153] COND FALSE !(s__state == 4401) [L156] COND FALSE !(s__state == 4416) [L159] COND FALSE !(s__state == 4417) [L162] COND TRUE s__state == 4432 [L355] ret = __VERIFIER_nondet_int() [L356] COND TRUE blastFlag == 4 [L585] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 140 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.6s, OverallIterations: 11, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2757 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2755 mSDsluCounter, 2094 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 82 mSDsCounter, 181 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1993 IncrementalHoareTripleChecker+Invalid, 2174 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 181 mSolverCounterUnsat, 2012 mSDtfsCounter, 1993 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=767occurred in iteration=10, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 10 MinimizatonAttempts, 97 StatesRemovedByMinimization, 6 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! [2022-03-20 17:15:34,977 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...