/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/acceleratedInterpolationQvasr_64.epf -i ../../../trunk/examples/svcomp/openssl-simplified/s3_clnt_2.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7968f31 [2022-03-18 05:24:31,433 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-18 05:24:31,435 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-18 05:24:31,468 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-18 05:24:31,502 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-18 05:24:31,503 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-18 05:24:31,506 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-18 05:24:31,507 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-03-18 05:24:31,516 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-18 05:24:31,516 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-18 05:24:31,517 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-18 05:24:31,517 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-18 05:24:31,517 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-18 05:24:31,518 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-18 05:24:31,518 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-18 05:24:31,518 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-18 05:24:31,518 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-18 05:24:31,518 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-18 05:24:31,518 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-18 05:24:31,519 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-18 05:24:31,519 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-18 05:24:31,519 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-18 05:24:31,519 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-18 05:24:31,519 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-18 05:24:31,519 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-18 05:24:31,519 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-18 05:24:31,519 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-03-18 05:24:31,519 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-03-18 05:24:31,519 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-18 05:24:31,519 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-03-18 05:24:31,520 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-18 05:24:31,723 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-18 05:24:31,751 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-18 05:24:31,752 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-18 05:24:31,753 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-18 05:24:31,761 INFO L275 PluginConnector]: CDTParser initialized [2022-03-18 05:24:31,762 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl-simplified/s3_clnt_2.cil-1.c [2022-03-18 05:24:31,806 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4eafc6f1c/13038f130e2343298e923fa3e92ec2cb/FLAGeb2be4f11 [2022-03-18 05:24:32,133 INFO L306 CDTParser]: Found 1 translation units. [2022-03-18 05:24:32,134 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_clnt_2.cil-1.c [2022-03-18 05:24:32,139 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4eafc6f1c/13038f130e2343298e923fa3e92ec2cb/FLAGeb2be4f11 [2022-03-18 05:24:32,553 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4eafc6f1c/13038f130e2343298e923fa3e92ec2cb [2022-03-18 05:24:32,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-18 05:24:32,556 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-18 05:24:32,557 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-18 05:24:32,557 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-18 05:24:32,559 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-18 05:24:32,560 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.03 05:24:32" (1/1) ... [2022-03-18 05:24:32,560 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c447a7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 05:24:32, skipping insertion in model container [2022-03-18 05:24:32,560 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.03 05:24:32" (1/1) ... [2022-03-18 05:24:32,565 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-18 05:24:32,585 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-18 05:24:32,751 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_2.cil-1.c[35880,35893] [2022-03-18 05:24:32,755 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-18 05:24:32,760 INFO L203 MainTranslator]: Completed pre-run [2022-03-18 05:24:32,796 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_2.cil-1.c[35880,35893] [2022-03-18 05:24:32,797 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-18 05:24:32,805 INFO L208 MainTranslator]: Completed translation [2022-03-18 05:24:32,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 05:24:32 WrapperNode [2022-03-18 05:24:32,806 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-18 05:24:32,807 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-18 05:24:32,807 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-18 05:24:32,807 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-18 05:24:32,815 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 05:24:32" (1/1) ... [2022-03-18 05:24:32,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 05:24:32" (1/1) ... [2022-03-18 05:24:32,823 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 05:24:32" (1/1) ... [2022-03-18 05:24:32,823 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 05:24:32" (1/1) ... [2022-03-18 05:24:32,830 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 05:24:32" (1/1) ... [2022-03-18 05:24:32,847 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 05:24:32" (1/1) ... [2022-03-18 05:24:32,849 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 05:24:32" (1/1) ... [2022-03-18 05:24:32,851 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-18 05:24:32,852 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-18 05:24:32,852 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-18 05:24:32,852 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-18 05:24:32,853 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 05:24:32" (1/1) ... [2022-03-18 05:24:32,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-18 05:24:32,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 05:24:32,886 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) [2022-03-18 05:24:32,904 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 [2022-03-18 05:24:32,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-18 05:24:32,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-18 05:24:32,913 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-18 05:24:32,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2022-03-18 05:24:32,914 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-18 05:24:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-18 05:24:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-18 05:24:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-18 05:24:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-18 05:24:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-18 05:24:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-18 05:24:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-18 05:24:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2022-03-18 05:24:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-18 05:24:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-18 05:24:32,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-18 05:24:32,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-18 05:24:32,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-18 05:24:32,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-18 05:24:32,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-18 05:24:33,010 INFO L234 CfgBuilder]: Building ICFG [2022-03-18 05:24:33,011 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-18 05:24:33,093 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-18 05:24:33,347 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2022-03-18 05:24:33,347 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2022-03-18 05:24:33,349 INFO L275 CfgBuilder]: Performing block encoding [2022-03-18 05:24:33,354 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-18 05:24:33,354 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-18 05:24:33,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 05:24:33 BoogieIcfgContainer [2022-03-18 05:24:33,356 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-18 05:24:33,357 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-18 05:24:33,357 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-18 05:24:33,361 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-18 05:24:33,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.03 05:24:32" (1/3) ... [2022-03-18 05:24:33,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@292056c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.03 05:24:33, skipping insertion in model container [2022-03-18 05:24:33,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 05:24:32" (2/3) ... [2022-03-18 05:24:33,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@292056c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.03 05:24:33, skipping insertion in model container [2022-03-18 05:24:33,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 05:24:33" (3/3) ... [2022-03-18 05:24:33,363 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_2.cil-1.c [2022-03-18 05:24:33,367 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-18 05:24:33,367 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-18 05:24:33,403 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-18 05:24:33,410 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 [2022-03-18 05:24:33,411 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-18 05:24:33,425 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) [2022-03-18 05:24:33,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-03-18 05:24:33,442 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 05:24:33,443 INFO L500 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] [2022-03-18 05:24:33,443 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 05:24:33,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 05:24:33,446 INFO L85 PathProgramCache]: Analyzing trace with hash -53499867, now seen corresponding path program 1 times [2022-03-18 05:24:33,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-18 05:24:33,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [4502381] [2022-03-18 05:24:33,465 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-18 05:24:33,465 INFO L85 PathProgramCache]: Analyzing trace with hash -53499867, now seen corresponding path program 2 times [2022-03-18 05:24:33,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 05:24:33,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335100846] [2022-03-18 05:24:33,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 05:24:33,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 05:24:33,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 05:24:33,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 05:24:33,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 05:24:33,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 05:24:33,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 05:24:33,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335100846] [2022-03-18 05:24:33,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335100846] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 05:24:33,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 05:24:33,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 05:24:33,684 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-18 05:24:33,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [4502381] [2022-03-18 05:24:33,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [4502381] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 05:24:33,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 05:24:33,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 05:24:33,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417828779] [2022-03-18 05:24:33,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 05:24:33,688 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 05:24:33,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-18 05:24:33,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 05:24:33,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 05:24:33,706 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) [2022-03-18 05:24:33,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 05:24:33,999 INFO L93 Difference]: Finished difference Result 375 states and 629 transitions. [2022-03-18 05:24:34,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 05:24:34,000 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 [2022-03-18 05:24:34,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 05:24:34,007 INFO L225 Difference]: With dead ends: 375 [2022-03-18 05:24:34,007 INFO L226 Difference]: Without dead ends: 218 [2022-03-18 05:24:34,009 INFO L911 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 [2022-03-18 05:24:34,011 INFO L912 BasicCegarLoop]: 216 mSDtfsCounter, 576 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 578 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-18 05:24:34,012 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [578 Valid, 225 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-18 05:24:34,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-03-18 05:24:34,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2022-03-18 05:24:34,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 213 states have (on average 1.4929577464788732) internal successors, (318), 213 states have internal predecessors, (318), 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) [2022-03-18 05:24:34,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 322 transitions. [2022-03-18 05:24:34,062 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 322 transitions. Word has length 30 [2022-03-18 05:24:34,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 05:24:34,062 INFO L478 AbstractCegarLoop]: Abstraction has 218 states and 322 transitions. [2022-03-18 05:24:34,062 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) [2022-03-18 05:24:34,062 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 322 transitions. [2022-03-18 05:24:34,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-03-18 05:24:34,064 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 05:24:34,064 INFO L500 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] [2022-03-18 05:24:34,064 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-18 05:24:34,064 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 05:24:34,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 05:24:34,065 INFO L85 PathProgramCache]: Analyzing trace with hash 479708172, now seen corresponding path program 1 times [2022-03-18 05:24:34,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-18 05:24:34,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [301926370] [2022-03-18 05:24:34,065 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-18 05:24:34,065 INFO L85 PathProgramCache]: Analyzing trace with hash 479708172, now seen corresponding path program 2 times [2022-03-18 05:24:34,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 05:24:34,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839289046] [2022-03-18 05:24:34,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 05:24:34,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 05:24:34,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 05:24:34,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 05:24:34,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 05:24:34,206 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 05:24:34,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 05:24:34,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839289046] [2022-03-18 05:24:34,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839289046] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 05:24:34,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 05:24:34,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 05:24:34,212 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-18 05:24:34,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [301926370] [2022-03-18 05:24:34,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [301926370] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 05:24:34,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 05:24:34,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 05:24:34,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656961712] [2022-03-18 05:24:34,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 05:24:34,213 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 05:24:34,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-18 05:24:34,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 05:24:34,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 05:24:34,214 INFO L87 Difference]: Start difference. First operand 218 states and 322 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) [2022-03-18 05:24:34,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 05:24:34,404 INFO L93 Difference]: Finished difference Result 348 states and 521 transitions. [2022-03-18 05:24:34,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 05:24:34,404 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 [2022-03-18 05:24:34,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 05:24:34,406 INFO L225 Difference]: With dead ends: 348 [2022-03-18 05:24:34,406 INFO L226 Difference]: Without dead ends: 243 [2022-03-18 05:24:34,406 INFO L911 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 [2022-03-18 05:24:34,407 INFO L912 BasicCegarLoop]: 186 mSDtfsCounter, 189 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 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 [2022-03-18 05:24:34,407 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [189 Valid, 193 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-18 05:24:34,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2022-03-18 05:24:34,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 235. [2022-03-18 05:24:34,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 230 states have (on average 1.4782608695652173) internal successors, (340), 230 states have internal predecessors, (340), 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) [2022-03-18 05:24:34,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 344 transitions. [2022-03-18 05:24:34,422 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 344 transitions. Word has length 44 [2022-03-18 05:24:34,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 05:24:34,422 INFO L478 AbstractCegarLoop]: Abstraction has 235 states and 344 transitions. [2022-03-18 05:24:34,422 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) [2022-03-18 05:24:34,422 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 344 transitions. [2022-03-18 05:24:34,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-03-18 05:24:34,424 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 05:24:34,424 INFO L500 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] [2022-03-18 05:24:34,424 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-18 05:24:34,424 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 05:24:34,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 05:24:34,424 INFO L85 PathProgramCache]: Analyzing trace with hash -7403090, now seen corresponding path program 1 times [2022-03-18 05:24:34,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-18 05:24:34,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1283156776] [2022-03-18 05:24:34,425 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-18 05:24:34,425 INFO L85 PathProgramCache]: Analyzing trace with hash -7403090, now seen corresponding path program 2 times [2022-03-18 05:24:34,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 05:24:34,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139606196] [2022-03-18 05:24:34,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 05:24:34,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 05:24:34,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 05:24:34,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 05:24:34,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 05:24:34,480 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-18 05:24:34,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 05:24:34,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139606196] [2022-03-18 05:24:34,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139606196] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 05:24:34,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 05:24:34,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 05:24:34,481 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-18 05:24:34,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1283156776] [2022-03-18 05:24:34,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1283156776] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 05:24:34,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 05:24:34,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 05:24:34,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498782390] [2022-03-18 05:24:34,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 05:24:34,482 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 05:24:34,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-18 05:24:34,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 05:24:34,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 05:24:34,483 INFO L87 Difference]: Start difference. First operand 235 states and 344 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) [2022-03-18 05:24:34,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 05:24:34,710 INFO L93 Difference]: Finished difference Result 559 states and 849 transitions. [2022-03-18 05:24:34,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 05:24:34,711 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 [2022-03-18 05:24:34,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 05:24:34,712 INFO L225 Difference]: With dead ends: 559 [2022-03-18 05:24:34,712 INFO L226 Difference]: Without dead ends: 335 [2022-03-18 05:24:34,713 INFO L911 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 [2022-03-18 05:24:34,714 INFO L912 BasicCegarLoop]: 197 mSDtfsCounter, 209 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-03-18 05:24:34,714 INFO L913 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] [2022-03-18 05:24:34,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2022-03-18 05:24:34,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 317. [2022-03-18 05:24:34,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 312 states have (on average 1.4102564102564104) internal successors, (440), 312 states have internal predecessors, (440), 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) [2022-03-18 05:24:34,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 444 transitions. [2022-03-18 05:24:34,729 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 444 transitions. Word has length 61 [2022-03-18 05:24:34,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 05:24:34,729 INFO L478 AbstractCegarLoop]: Abstraction has 317 states and 444 transitions. [2022-03-18 05:24:34,729 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) [2022-03-18 05:24:34,729 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 444 transitions. [2022-03-18 05:24:34,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-03-18 05:24:34,734 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 05:24:34,734 INFO L500 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] [2022-03-18 05:24:34,734 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-18 05:24:34,736 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 05:24:34,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 05:24:34,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1812841424, now seen corresponding path program 1 times [2022-03-18 05:24:34,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-18 05:24:34,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [289927742] [2022-03-18 05:24:34,737 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-18 05:24:34,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1812841424, now seen corresponding path program 2 times [2022-03-18 05:24:34,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 05:24:34,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295316823] [2022-03-18 05:24:34,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 05:24:34,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 05:24:34,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 05:24:34,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 05:24:34,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 05:24:34,797 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-18 05:24:34,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 05:24:34,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295316823] [2022-03-18 05:24:34,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295316823] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 05:24:34,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 05:24:34,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 05:24:34,798 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-18 05:24:34,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [289927742] [2022-03-18 05:24:34,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [289927742] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 05:24:34,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 05:24:34,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 05:24:34,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796962048] [2022-03-18 05:24:34,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 05:24:34,799 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 05:24:34,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-18 05:24:34,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 05:24:34,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 05:24:34,799 INFO L87 Difference]: Start difference. First operand 317 states and 444 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) [2022-03-18 05:24:34,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 05:24:34,958 INFO L93 Difference]: Finished difference Result 669 states and 952 transitions. [2022-03-18 05:24:34,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 05:24:34,958 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 [2022-03-18 05:24:34,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 05:24:34,960 INFO L225 Difference]: With dead ends: 669 [2022-03-18 05:24:34,960 INFO L226 Difference]: Without dead ends: 365 [2022-03-18 05:24:34,961 INFO L911 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 [2022-03-18 05:24:34,962 INFO L912 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-18 05:24:34,962 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [191 Valid, 194 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-18 05:24:34,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2022-03-18 05:24:34,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 355. [2022-03-18 05:24:34,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 350 states have (on average 1.3942857142857144) internal successors, (488), 350 states have internal predecessors, (488), 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) [2022-03-18 05:24:34,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 492 transitions. [2022-03-18 05:24:34,977 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 492 transitions. Word has length 61 [2022-03-18 05:24:34,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 05:24:34,977 INFO L478 AbstractCegarLoop]: Abstraction has 355 states and 492 transitions. [2022-03-18 05:24:34,977 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) [2022-03-18 05:24:34,978 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 492 transitions. [2022-03-18 05:24:34,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-03-18 05:24:34,979 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 05:24:34,979 INFO L500 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] [2022-03-18 05:24:34,980 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-18 05:24:34,980 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 05:24:34,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 05:24:34,980 INFO L85 PathProgramCache]: Analyzing trace with hash 140161555, now seen corresponding path program 1 times [2022-03-18 05:24:34,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-18 05:24:34,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [320857890] [2022-03-18 05:24:34,981 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-18 05:24:34,981 INFO L85 PathProgramCache]: Analyzing trace with hash 140161555, now seen corresponding path program 2 times [2022-03-18 05:24:34,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 05:24:34,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637954035] [2022-03-18 05:24:34,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 05:24:34,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 05:24:34,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 05:24:35,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 05:24:35,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 05:24:35,033 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-18 05:24:35,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 05:24:35,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637954035] [2022-03-18 05:24:35,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637954035] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 05:24:35,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 05:24:35,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 05:24:35,034 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-18 05:24:35,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [320857890] [2022-03-18 05:24:35,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [320857890] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 05:24:35,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 05:24:35,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 05:24:35,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93856497] [2022-03-18 05:24:35,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 05:24:35,034 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 05:24:35,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-18 05:24:35,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 05:24:35,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 05:24:35,035 INFO L87 Difference]: Start difference. First operand 355 states and 492 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) [2022-03-18 05:24:35,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 05:24:35,190 INFO L93 Difference]: Finished difference Result 803 states and 1151 transitions. [2022-03-18 05:24:35,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 05:24:35,190 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 [2022-03-18 05:24:35,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 05:24:35,192 INFO L225 Difference]: With dead ends: 803 [2022-03-18 05:24:35,192 INFO L226 Difference]: Without dead ends: 459 [2022-03-18 05:24:35,192 INFO L911 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 [2022-03-18 05:24:35,193 INFO L912 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-18 05:24:35,193 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [295 Valid, 181 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-18 05:24:35,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2022-03-18 05:24:35,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 433. [2022-03-18 05:24:35,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 428 states have (on average 1.4532710280373833) internal successors, (622), 428 states have internal predecessors, (622), 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) [2022-03-18 05:24:35,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 626 transitions. [2022-03-18 05:24:35,214 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 626 transitions. Word has length 74 [2022-03-18 05:24:35,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 05:24:35,214 INFO L478 AbstractCegarLoop]: Abstraction has 433 states and 626 transitions. [2022-03-18 05:24:35,215 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) [2022-03-18 05:24:35,215 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 626 transitions. [2022-03-18 05:24:35,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-03-18 05:24:35,216 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 05:24:35,216 INFO L500 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] [2022-03-18 05:24:35,216 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-18 05:24:35,216 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 05:24:35,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 05:24:35,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1706902904, now seen corresponding path program 1 times [2022-03-18 05:24:35,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-18 05:24:35,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1994165313] [2022-03-18 05:24:35,217 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-18 05:24:35,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1706902904, now seen corresponding path program 2 times [2022-03-18 05:24:35,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 05:24:35,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960628815] [2022-03-18 05:24:35,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 05:24:35,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 05:24:35,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 05:24:35,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 05:24:35,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 05:24:35,253 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-03-18 05:24:35,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 05:24:35,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960628815] [2022-03-18 05:24:35,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960628815] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 05:24:35,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 05:24:35,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 05:24:35,254 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-18 05:24:35,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1994165313] [2022-03-18 05:24:35,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1994165313] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 05:24:35,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 05:24:35,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 05:24:35,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891621795] [2022-03-18 05:24:35,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 05:24:35,255 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 05:24:35,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-18 05:24:35,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 05:24:35,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 05:24:35,255 INFO L87 Difference]: Start difference. First operand 433 states and 626 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) [2022-03-18 05:24:35,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 05:24:35,418 INFO L93 Difference]: Finished difference Result 901 states and 1312 transitions. [2022-03-18 05:24:35,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 05:24:35,419 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 [2022-03-18 05:24:35,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 05:24:35,420 INFO L225 Difference]: With dead ends: 901 [2022-03-18 05:24:35,420 INFO L226 Difference]: Without dead ends: 481 [2022-03-18 05:24:35,421 INFO L911 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 [2022-03-18 05:24:35,422 INFO L912 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-18 05:24:35,422 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [185 Valid, 193 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-18 05:24:35,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2022-03-18 05:24:35,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 475. [2022-03-18 05:24:35,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 470 states have (on average 1.4340425531914893) internal successors, (674), 470 states have internal predecessors, (674), 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) [2022-03-18 05:24:35,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 678 transitions. [2022-03-18 05:24:35,445 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 678 transitions. Word has length 78 [2022-03-18 05:24:35,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 05:24:35,445 INFO L478 AbstractCegarLoop]: Abstraction has 475 states and 678 transitions. [2022-03-18 05:24:35,445 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) [2022-03-18 05:24:35,445 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 678 transitions. [2022-03-18 05:24:35,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-03-18 05:24:35,446 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 05:24:35,446 INFO L500 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] [2022-03-18 05:24:35,446 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-18 05:24:35,447 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 05:24:35,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 05:24:35,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1231515182, now seen corresponding path program 1 times [2022-03-18 05:24:35,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-18 05:24:35,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [744518117] [2022-03-18 05:24:35,447 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-18 05:24:35,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1231515182, now seen corresponding path program 2 times [2022-03-18 05:24:35,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 05:24:35,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847252338] [2022-03-18 05:24:35,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 05:24:35,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 05:24:35,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 05:24:35,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 05:24:35,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 05:24:35,489 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-03-18 05:24:35,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 05:24:35,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847252338] [2022-03-18 05:24:35,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847252338] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 05:24:35,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 05:24:35,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 05:24:35,490 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-18 05:24:35,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [744518117] [2022-03-18 05:24:35,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [744518117] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 05:24:35,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 05:24:35,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 05:24:35,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301323480] [2022-03-18 05:24:35,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 05:24:35,490 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 05:24:35,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-18 05:24:35,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 05:24:35,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 05:24:35,491 INFO L87 Difference]: Start difference. First operand 475 states and 678 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) [2022-03-18 05:24:35,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 05:24:35,692 INFO L93 Difference]: Finished difference Result 956 states and 1370 transitions. [2022-03-18 05:24:35,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 05:24:35,693 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 [2022-03-18 05:24:35,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 05:24:35,695 INFO L225 Difference]: With dead ends: 956 [2022-03-18 05:24:35,695 INFO L226 Difference]: Without dead ends: 714 [2022-03-18 05:24:35,696 INFO L911 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 [2022-03-18 05:24:35,696 INFO L912 BasicCegarLoop]: 316 mSDtfsCounter, 289 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 323 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 [2022-03-18 05:24:35,696 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [289 Valid, 323 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-18 05:24:35,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2022-03-18 05:24:35,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 714. [2022-03-18 05:24:35,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 714 states, 709 states have (on average 1.4287729196050776) internal successors, (1013), 709 states have internal predecessors, (1013), 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) [2022-03-18 05:24:35,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 714 states to 714 states and 1017 transitions. [2022-03-18 05:24:35,728 INFO L78 Accepts]: Start accepts. Automaton has 714 states and 1017 transitions. Word has length 98 [2022-03-18 05:24:35,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 05:24:35,728 INFO L478 AbstractCegarLoop]: Abstraction has 714 states and 1017 transitions. [2022-03-18 05:24:35,728 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) [2022-03-18 05:24:35,728 INFO L276 IsEmpty]: Start isEmpty. Operand 714 states and 1017 transitions. [2022-03-18 05:24:35,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-03-18 05:24:35,729 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 05:24:35,729 INFO L500 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] [2022-03-18 05:24:35,729 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-18 05:24:35,730 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 05:24:35,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 05:24:35,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1910787436, now seen corresponding path program 1 times [2022-03-18 05:24:35,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-18 05:24:35,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [77602228] [2022-03-18 05:24:35,730 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-18 05:24:35,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1910787436, now seen corresponding path program 2 times [2022-03-18 05:24:35,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 05:24:35,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679328841] [2022-03-18 05:24:35,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 05:24:35,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 05:24:35,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 05:24:35,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 05:24:35,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 05:24:35,777 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-18 05:24:35,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 05:24:35,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679328841] [2022-03-18 05:24:35,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679328841] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 05:24:35,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 05:24:35,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 05:24:35,777 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-18 05:24:35,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [77602228] [2022-03-18 05:24:35,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [77602228] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 05:24:35,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 05:24:35,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 05:24:35,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681170180] [2022-03-18 05:24:35,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 05:24:35,779 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 05:24:35,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-18 05:24:35,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 05:24:35,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 05:24:35,780 INFO L87 Difference]: Start difference. First operand 714 states and 1017 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 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) [2022-03-18 05:24:35,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 05:24:35,926 INFO L93 Difference]: Finished difference Result 1216 states and 1731 transitions. [2022-03-18 05:24:35,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 05:24:35,926 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 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 [2022-03-18 05:24:35,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 05:24:35,928 INFO L225 Difference]: With dead ends: 1216 [2022-03-18 05:24:35,928 INFO L226 Difference]: Without dead ends: 735 [2022-03-18 05:24:35,929 INFO L911 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 [2022-03-18 05:24:35,930 INFO L912 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 [2022-03-18 05:24:35,930 INFO L913 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] [2022-03-18 05:24:35,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2022-03-18 05:24:35,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 735. [2022-03-18 05:24:35,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 735 states, 730 states have (on average 1.4246575342465753) internal successors, (1040), 730 states have internal predecessors, (1040), 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) [2022-03-18 05:24:35,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 1044 transitions. [2022-03-18 05:24:35,960 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 1044 transitions. Word has length 98 [2022-03-18 05:24:35,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 05:24:35,960 INFO L478 AbstractCegarLoop]: Abstraction has 735 states and 1044 transitions. [2022-03-18 05:24:35,960 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 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) [2022-03-18 05:24:35,960 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 1044 transitions. [2022-03-18 05:24:35,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-03-18 05:24:35,961 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 05:24:35,961 INFO L500 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] [2022-03-18 05:24:35,961 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-18 05:24:35,961 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 05:24:35,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 05:24:35,962 INFO L85 PathProgramCache]: Analyzing trace with hash 2125104952, now seen corresponding path program 1 times [2022-03-18 05:24:35,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-18 05:24:35,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1785513710] [2022-03-18 05:24:35,962 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-18 05:24:35,962 INFO L85 PathProgramCache]: Analyzing trace with hash 2125104952, now seen corresponding path program 2 times [2022-03-18 05:24:35,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 05:24:35,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986414859] [2022-03-18 05:24:35,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 05:24:35,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 05:24:35,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 05:24:36,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 05:24:36,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 05:24:36,023 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-03-18 05:24:36,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 05:24:36,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986414859] [2022-03-18 05:24:36,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986414859] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 05:24:36,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 05:24:36,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 05:24:36,023 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-18 05:24:36,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1785513710] [2022-03-18 05:24:36,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1785513710] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 05:24:36,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 05:24:36,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 05:24:36,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781112491] [2022-03-18 05:24:36,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 05:24:36,024 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 05:24:36,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-18 05:24:36,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 05:24:36,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 05:24:36,025 INFO L87 Difference]: Start difference. First operand 735 states and 1044 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) [2022-03-18 05:24:36,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 05:24:36,178 INFO L93 Difference]: Finished difference Result 1262 states and 1788 transitions. [2022-03-18 05:24:36,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 05:24:36,178 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 [2022-03-18 05:24:36,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 05:24:36,183 INFO L225 Difference]: With dead ends: 1262 [2022-03-18 05:24:36,183 INFO L226 Difference]: Without dead ends: 760 [2022-03-18 05:24:36,188 INFO L911 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 [2022-03-18 05:24:36,189 INFO L912 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 [2022-03-18 05:24:36,190 INFO L913 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] [2022-03-18 05:24:36,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2022-03-18 05:24:36,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 760. [2022-03-18 05:24:36,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 760 states, 755 states have (on average 1.4172185430463575) internal successors, (1070), 755 states have internal predecessors, (1070), 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) [2022-03-18 05:24:36,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 760 states to 760 states and 1074 transitions. [2022-03-18 05:24:36,221 INFO L78 Accepts]: Start accepts. Automaton has 760 states and 1074 transitions. Word has length 100 [2022-03-18 05:24:36,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 05:24:36,221 INFO L478 AbstractCegarLoop]: Abstraction has 760 states and 1074 transitions. [2022-03-18 05:24:36,221 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) [2022-03-18 05:24:36,222 INFO L276 IsEmpty]: Start isEmpty. Operand 760 states and 1074 transitions. [2022-03-18 05:24:36,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-03-18 05:24:36,223 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 05:24:36,223 INFO L500 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] [2022-03-18 05:24:36,223 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-18 05:24:36,223 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 05:24:36,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 05:24:36,223 INFO L85 PathProgramCache]: Analyzing trace with hash -2035848838, now seen corresponding path program 1 times [2022-03-18 05:24:36,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-18 05:24:36,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [823323809] [2022-03-18 05:24:36,224 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-18 05:24:36,224 INFO L85 PathProgramCache]: Analyzing trace with hash -2035848838, now seen corresponding path program 2 times [2022-03-18 05:24:36,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 05:24:36,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842795257] [2022-03-18 05:24:36,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 05:24:36,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 05:24:36,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 05:24:36,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 05:24:36,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 05:24:36,273 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-03-18 05:24:36,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 05:24:36,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842795257] [2022-03-18 05:24:36,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842795257] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 05:24:36,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 05:24:36,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-18 05:24:36,274 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-18 05:24:36,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [823323809] [2022-03-18 05:24:36,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [823323809] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 05:24:36,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 05:24:36,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-18 05:24:36,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244173101] [2022-03-18 05:24:36,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 05:24:36,274 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-18 05:24:36,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-18 05:24:36,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-18 05:24:36,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-18 05:24:36,275 INFO L87 Difference]: Start difference. First operand 760 states and 1074 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) [2022-03-18 05:24:36,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 05:24:36,564 INFO L93 Difference]: Finished difference Result 1568 states and 2229 transitions. [2022-03-18 05:24:36,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-18 05:24:36,564 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 [2022-03-18 05:24:36,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 05:24:36,566 INFO L225 Difference]: With dead ends: 1568 [2022-03-18 05:24:36,566 INFO L226 Difference]: Without dead ends: 793 [2022-03-18 05:24:36,568 INFO L911 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 [2022-03-18 05:24:36,568 INFO L912 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 [2022-03-18 05:24:36,569 INFO L913 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] [2022-03-18 05:24:36,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2022-03-18 05:24:36,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 766. [2022-03-18 05:24:36,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 766 states, 761 states have (on average 1.416557161629435) internal successors, (1078), 761 states have internal predecessors, (1078), 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) [2022-03-18 05:24:36,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 1082 transitions. [2022-03-18 05:24:36,616 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 1082 transitions. Word has length 100 [2022-03-18 05:24:36,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 05:24:36,616 INFO L478 AbstractCegarLoop]: Abstraction has 766 states and 1082 transitions. [2022-03-18 05:24:36,616 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) [2022-03-18 05:24:36,617 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 1082 transitions. [2022-03-18 05:24:36,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-03-18 05:24:36,618 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 05:24:36,618 INFO L500 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] [2022-03-18 05:24:36,618 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-18 05:24:36,618 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 05:24:36,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 05:24:36,618 INFO L85 PathProgramCache]: Analyzing trace with hash -258746095, now seen corresponding path program 1 times [2022-03-18 05:24:36,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-18 05:24:36,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [733301265] [2022-03-18 05:24:36,619 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-18 05:24:36,619 INFO L85 PathProgramCache]: Analyzing trace with hash -258746095, now seen corresponding path program 2 times [2022-03-18 05:24:36,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 05:24:36,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114552433] [2022-03-18 05:24:36,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 05:24:36,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 05:24:36,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-18 05:24:36,638 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-18 05:24:36,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-18 05:24:36,683 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-18 05:24:36,683 INFO L130 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found a feasible trace [2022-03-18 05:24:36,684 INFO L614 BasicCegarLoop]: Counterexample is feasible [2022-03-18 05:24:36,686 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-03-18 05:24:36,687 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-18 05:24:36,689 INFO L718 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2] [2022-03-18 05:24:36,691 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-18 05:24:36,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.03 05:24:36 BoogieIcfgContainer [2022-03-18 05:24:36,705 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-18 05:24:36,705 INFO L158 Benchmark]: Toolchain (without parser) took 4149.37ms. Allocated memory was 175.1MB in the beginning and 263.2MB in the end (delta: 88.1MB). Free memory was 124.0MB in the beginning and 189.1MB in the end (delta: -65.1MB). Peak memory consumption was 22.9MB. Max. memory is 8.0GB. [2022-03-18 05:24:36,705 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 175.1MB. Free memory is still 140.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-18 05:24:36,705 INFO L158 Benchmark]: CACSL2BoogieTranslator took 249.03ms. Allocated memory was 175.1MB in the beginning and 219.2MB in the end (delta: 44.0MB). Free memory was 123.8MB in the beginning and 192.2MB in the end (delta: -68.3MB). Peak memory consumption was 13.1MB. Max. memory is 8.0GB. [2022-03-18 05:24:36,706 INFO L158 Benchmark]: Boogie Preprocessor took 44.76ms. Allocated memory is still 219.2MB. Free memory was 192.2MB in the beginning and 189.5MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-03-18 05:24:36,706 INFO L158 Benchmark]: RCFGBuilder took 503.88ms. Allocated memory is still 219.2MB. Free memory was 189.5MB in the beginning and 163.3MB in the end (delta: 26.2MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2022-03-18 05:24:36,706 INFO L158 Benchmark]: TraceAbstraction took 3347.89ms. Allocated memory was 219.2MB in the beginning and 263.2MB in the end (delta: 44.0MB). Free memory was 162.7MB in the beginning and 189.1MB in the end (delta: -26.4MB). Peak memory consumption was 19.2MB. Max. memory is 8.0GB. [2022-03-18 05:24:36,707 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 175.1MB. Free memory is still 140.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 249.03ms. Allocated memory was 175.1MB in the beginning and 219.2MB in the end (delta: 44.0MB). Free memory was 123.8MB in the beginning and 192.2MB in the end (delta: -68.3MB). Peak memory consumption was 13.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 44.76ms. Allocated memory is still 219.2MB. Free memory was 192.2MB in the beginning and 189.5MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 503.88ms. Allocated memory is still 219.2MB. Free memory was 189.5MB in the beginning and 163.3MB in the end (delta: 26.2MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. * TraceAbstraction took 3347.89ms. Allocated memory was 219.2MB in the beginning and 263.2MB in the end (delta: 44.0MB). Free memory was 162.7MB in the beginning and 189.1MB in the end (delta: -26.4MB). Peak memory consumption was 19.2MB. 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: 560]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L565] int s ; [L569] s = 12292 [L570] CALL ssl3_connect(s) [L23] int s__info_callback = __VERIFIER_nondet_int() ; [L24] int s__in_handshake = __VERIFIER_nondet_int() ; [L25] int s__state ; [L26] int s__new_session ; [L27] int s__server ; [L28] int s__version = __VERIFIER_nondet_int() ; [L29] int s__type ; [L30] int s__init_num ; [L31] int s__bbio = __VERIFIER_nondet_int() ; [L32] int s__wbio = __VERIFIER_nondet_int() ; [L33] int s__hit = __VERIFIER_nondet_int() ; [L34] int s__rwstate ; [L35] int s__init_buf___0 = 1; [L36] int s__debug = __VERIFIER_nondet_int() ; [L37] int s__shutdown ; [L38] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L39] int s__ctx__stats__sess_connect_renegotiate = __VERIFIER_nondet_int() ; [L40] int s__ctx__stats__sess_connect = __VERIFIER_nondet_int() ; [L41] int s__ctx__stats__sess_hit = __VERIFIER_nondet_int() ; [L42] int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_int() ; [L43] int s__s3__change_cipher_spec ; [L44] int s__s3__flags = __VERIFIER_nondet_int() ; [L45] int s__s3__delay_buf_pop_ret ; [L46] int s__s3__tmp__cert_req = __VERIFIER_nondet_int() ; [L47] int s__s3__tmp__new_compression = __VERIFIER_nondet_int() ; [L48] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int() ; [L49] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L50] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() ; [L51] int s__s3__tmp__next_state___0 ; [L52] int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int() ; [L53] int s__session__cipher ; [L54] int s__session__compress_meth ; [L55] int buf ; [L56] unsigned long tmp ; [L57] unsigned long l ; [L58] int num1 = __VERIFIER_nondet_int() ; [L59] int cb ; [L60] int ret ; [L61] int new_state ; [L62] int state ; [L63] int skip ; [L64] int tmp___0 ; [L65] int tmp___1 = __VERIFIER_nondet_int() ; [L66] int tmp___2 = __VERIFIER_nondet_int() ; [L67] int tmp___3 = __VERIFIER_nondet_int() ; [L68] int tmp___4 = __VERIFIER_nondet_int() ; [L69] int tmp___5 = __VERIFIER_nondet_int() ; [L70] int tmp___6 = __VERIFIER_nondet_int() ; [L71] int tmp___7 = __VERIFIER_nondet_int() ; [L72] int tmp___8 = __VERIFIER_nondet_int() ; [L73] int tmp___9 = __VERIFIER_nondet_int() ; [L74] int blastFlag ; [L75] int __cil_tmp55 ; [L76] unsigned long __cil_tmp56 ; [L77] long __cil_tmp57 ; [L78] long __cil_tmp58 ; [L79] long __cil_tmp59 ; [L80] long __cil_tmp60 ; [L81] long __cil_tmp61 ; [L82] long __cil_tmp62 ; [L83] long __cil_tmp63 ; [L84] long __cil_tmp64 ; [L85] long __cil_tmp65 ; [L89] s__state = initial_state [L90] blastFlag = 0 [L91] tmp = __VERIFIER_nondet_int() [L92] cb = 0 [L93] ret = -1 [L94] skip = 0 [L95] tmp___0 = 0 [L96] COND TRUE s__info_callback != 0 [L97] cb = s__info_callback [L103] s__in_handshake ++ [L104] COND FALSE !(tmp___1 - 12288) [L110] COND TRUE 1 [L112] state = s__state [L113] COND TRUE s__state == 12292 [L215] s__new_session = 1 [L216] s__state = 4096 [L217] s__ctx__stats__sess_connect_renegotiate ++ [L222] s__server = 0 [L223] COND TRUE cb != 0 [L227] __cil_tmp55 = s__version - 65280 [L228] COND FALSE !(__cil_tmp55 != 768) [L233] s__type = 4096 [L234] COND FALSE !(s__init_buf___0 == 0) [L246] COND FALSE !(! tmp___4) [L250] COND FALSE !(! tmp___5) [L254] s__state = 4368 [L255] s__ctx__stats__sess_connect ++ [L256] s__init_num = 0 [L532] COND FALSE !(! s__s3__tmp__reuse_message) [L549] skip = 0 [L110] COND TRUE 1 [L112] state = s__state [L113] COND FALSE !(s__state == 12292) [L116] COND FALSE !(s__state == 16384) [L119] COND FALSE !(s__state == 4096) [L122] COND FALSE !(s__state == 20480) [L125] COND FALSE !(s__state == 4099) [L128] COND TRUE s__state == 4368 [L260] s__shutdown = 0 [L261] ret = __VERIFIER_nondet_int() [L262] COND TRUE blastFlag == 0 [L263] blastFlag = 1 [L269] COND FALSE !(ret <= 0) [L272] s__state = 4384 [L273] s__init_num = 0 [L274] COND FALSE !(s__bbio != s__wbio) [L532] COND FALSE !(! s__s3__tmp__reuse_message) [L549] skip = 0 [L110] COND TRUE 1 [L112] state = s__state [L113] COND FALSE !(s__state == 12292) [L116] COND FALSE !(s__state == 16384) [L119] COND FALSE !(s__state == 4096) [L122] COND FALSE !(s__state == 20480) [L125] COND FALSE !(s__state == 4099) [L128] COND FALSE !(s__state == 4368) [L131] COND FALSE !(s__state == 4369) [L134] COND TRUE s__state == 4384 [L280] ret = __VERIFIER_nondet_int() [L281] COND TRUE blastFlag == 1 [L282] blastFlag = 2 [L284] COND FALSE !(ret <= 0) [L287] COND FALSE !(\read(s__hit)) [L290] s__state = 4400 [L292] s__init_num = 0 [L532] COND FALSE !(! s__s3__tmp__reuse_message) [L549] skip = 0 [L110] COND TRUE 1 [L112] state = s__state [L113] COND FALSE !(s__state == 12292) [L116] COND FALSE !(s__state == 16384) [L119] COND FALSE !(s__state == 4096) [L122] COND FALSE !(s__state == 20480) [L125] COND FALSE !(s__state == 4099) [L128] COND FALSE !(s__state == 4368) [L131] COND FALSE !(s__state == 4369) [L134] COND FALSE !(s__state == 4384) [L137] COND FALSE !(s__state == 4385) [L140] COND TRUE s__state == 4400 [L297] __cil_tmp56 = (unsigned long )s__s3__tmp__new_cipher__algorithms [L298] COND FALSE !(__cil_tmp56 - 256UL) [L301] ret = __VERIFIER_nondet_int() [L302] COND TRUE blastFlag == 2 [L303] blastFlag = 3 [L305] COND FALSE !(ret <= 0) [L310] s__state = 4416 [L311] s__init_num = 0 [L532] COND FALSE !(! s__s3__tmp__reuse_message) [L549] skip = 0 [L110] COND TRUE 1 [L112] state = s__state [L113] COND FALSE !(s__state == 12292) [L116] COND FALSE !(s__state == 16384) [L119] COND FALSE !(s__state == 4096) [L122] COND FALSE !(s__state == 20480) [L125] COND FALSE !(s__state == 4099) [L128] COND FALSE !(s__state == 4368) [L131] COND FALSE !(s__state == 4369) [L134] COND FALSE !(s__state == 4384) [L137] COND FALSE !(s__state == 4385) [L140] COND FALSE !(s__state == 4400) [L143] COND FALSE !(s__state == 4401) [L146] COND TRUE s__state == 4416 [L315] ret = __VERIFIER_nondet_int() [L316] COND TRUE blastFlag == 3 [L317] blastFlag = 4 [L319] COND FALSE !(ret <= 0) [L322] s__state = 4432 [L323] s__init_num = 0 [L324] COND FALSE !(! tmp___6) [L532] COND FALSE !(! s__s3__tmp__reuse_message) [L549] skip = 0 [L110] COND TRUE 1 [L112] state = s__state [L113] COND FALSE !(s__state == 12292) [L116] COND FALSE !(s__state == 16384) [L119] COND FALSE !(s__state == 4096) [L122] COND FALSE !(s__state == 20480) [L125] COND FALSE !(s__state == 4099) [L128] COND FALSE !(s__state == 4368) [L131] COND FALSE !(s__state == 4369) [L134] COND FALSE !(s__state == 4384) [L137] COND FALSE !(s__state == 4385) [L140] COND FALSE !(s__state == 4400) [L143] COND FALSE !(s__state == 4401) [L146] COND FALSE !(s__state == 4416) [L149] COND FALSE !(s__state == 4417) [L152] COND TRUE s__state == 4432 [L331] ret = __VERIFIER_nondet_int() [L332] COND TRUE blastFlag == 4 [L560] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 140 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.3s, OverallIterations: 11, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2752 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2750 mSDsluCounter, 2094 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 82 mSDsCounter, 180 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1992 IncrementalHoareTripleChecker+Invalid, 2172 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 180 mSolverCounterUnsat, 2012 mSDtfsCounter, 1992 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=766occurred 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: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 95 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! [2022-03-18 05:24:36,734 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...