/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/openssl-simplified/s3_clnt_4.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-06 18:51:40,743 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-06 18:51:40,744 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-06 18:51:40,768 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-04-06 18:51:40,790 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-06 18:51:40,794 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-06 18:51:40,796 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-06 18:51:40,797 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-04-06 18:51:40,806 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-06 18:51:40,807 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-06 18:51:40,807 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-06 18:51:40,808 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-06 18:51:40,808 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-06 18:51:40,808 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-06 18:51:40,808 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-06 18:51:40,808 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-06 18:51:40,808 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-06 18:51:40,809 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-06 18:51:40,809 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-06 18:51:40,809 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-06 18:51:40,809 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-06 18:51:40,809 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-06 18:51:40,809 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-06 18:51:40,809 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-06 18:51:40,809 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-06 18:51:40,809 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-06 18:51:40,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 18:51:40,809 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-06 18:51:40,810 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-04-06 18:51:40,810 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-04-06 18:51:40,810 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-04-06 18:51:40,810 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-06 18:51:40,810 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-04-06 18:51:40,810 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-06 18:51:40,993 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-06 18:51:41,012 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-06 18:51:41,014 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-06 18:51:41,015 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-06 18:51:41,015 INFO L275 PluginConnector]: CDTParser initialized [2022-04-06 18:51:41,016 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl-simplified/s3_clnt_4.cil-2.c [2022-04-06 18:51:41,066 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89f031031/d44dd40298ac48c89612deb00176088e/FLAGebc477f82 [2022-04-06 18:51:41,441 INFO L306 CDTParser]: Found 1 translation units. [2022-04-06 18:51:41,441 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_clnt_4.cil-2.c [2022-04-06 18:51:41,453 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89f031031/d44dd40298ac48c89612deb00176088e/FLAGebc477f82 [2022-04-06 18:51:41,468 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89f031031/d44dd40298ac48c89612deb00176088e [2022-04-06 18:51:41,470 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-06 18:51:41,471 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-04-06 18:51:41,473 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-06 18:51:41,473 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-06 18:51:41,476 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-06 18:51:41,476 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 06:51:41" (1/1) ... [2022-04-06 18:51:41,477 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@555971af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 06:51:41, skipping insertion in model container [2022-04-06 18:51:41,477 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 06:51:41" (1/1) ... [2022-04-06 18:51:41,481 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-06 18:51:41,508 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-06 18:51:41,706 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_4.cil-2.c[35909,35922] [2022-04-06 18:51:41,710 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 18:51:41,718 INFO L203 MainTranslator]: Completed pre-run [2022-04-06 18:51:41,761 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_4.cil-2.c[35909,35922] [2022-04-06 18:51:41,763 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 18:51:41,771 INFO L208 MainTranslator]: Completed translation [2022-04-06 18:51:41,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 06:51:41 WrapperNode [2022-04-06 18:51:41,771 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-06 18:51:41,772 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-06 18:51:41,772 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-06 18:51:41,772 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-06 18:51:41,779 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 06:51:41" (1/1) ... [2022-04-06 18:51:41,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 06:51:41" (1/1) ... [2022-04-06 18:51:41,790 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 06:51:41" (1/1) ... [2022-04-06 18:51:41,790 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 06:51:41" (1/1) ... [2022-04-06 18:51:41,810 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 06:51:41" (1/1) ... [2022-04-06 18:51:41,815 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 06:51:41" (1/1) ... [2022-04-06 18:51:41,816 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 06:51:41" (1/1) ... [2022-04-06 18:51:41,818 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-06 18:51:41,819 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-06 18:51:41,819 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-06 18:51:41,819 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-06 18:51:41,828 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 06:51:41" (1/1) ... [2022-04-06 18:51:41,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 18:51:41,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 18:51:41,852 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) [2022-04-06 18:51:41,883 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 [2022-04-06 18:51:41,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-06 18:51:41,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-06 18:51:41,905 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-06 18:51:41,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2022-04-06 18:51:41,905 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-06 18:51:41,905 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-06 18:51:41,905 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-06 18:51:41,905 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-06 18:51:41,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-06 18:51:41,906 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-04-06 18:51:41,906 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-06 18:51:41,906 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-04-06 18:51:41,906 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2022-04-06 18:51:41,906 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-06 18:51:41,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-06 18:51:41,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-06 18:51:41,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-06 18:51:41,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-06 18:51:41,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-06 18:51:41,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-06 18:51:42,023 INFO L234 CfgBuilder]: Building ICFG [2022-04-06 18:51:42,024 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-06 18:51:42,089 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-06 18:51:42,331 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2022-04-06 18:51:42,331 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2022-04-06 18:51:42,335 INFO L275 CfgBuilder]: Performing block encoding [2022-04-06 18:51:42,340 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-06 18:51:42,340 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-06 18:51:42,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 06:51:42 BoogieIcfgContainer [2022-04-06 18:51:42,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-06 18:51:42,343 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-06 18:51:42,343 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-06 18:51:42,350 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-06 18:51:42,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.04 06:51:41" (1/3) ... [2022-04-06 18:51:42,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@862ae1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 06:51:42, skipping insertion in model container [2022-04-06 18:51:42,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 06:51:41" (2/3) ... [2022-04-06 18:51:42,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@862ae1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 06:51:42, skipping insertion in model container [2022-04-06 18:51:42,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 06:51:42" (3/3) ... [2022-04-06 18:51:42,352 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_4.cil-2.c [2022-04-06 18:51:42,356 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-04-06 18:51:42,356 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-06 18:51:42,393 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-06 18:51:42,400 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 [2022-04-06 18:51:42,400 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-06 18:51:42,417 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) [2022-04-06 18:51:42,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-04-06 18:51:42,425 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 18:51:42,426 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 18:51:42,426 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 18:51:42,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 18:51:42,430 INFO L85 PathProgramCache]: Analyzing trace with hash -53499867, now seen corresponding path program 1 times [2022-04-06 18:51:42,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 18:51:42,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [700455035] [2022-04-06 18:51:42,443 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 18:51:42,443 INFO L85 PathProgramCache]: Analyzing trace with hash -53499867, now seen corresponding path program 2 times [2022-04-06 18:51:42,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 18:51:42,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619345138] [2022-04-06 18:51:42,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 18:51:42,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 18:51:42,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 18:51:42,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 18:51:42,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 18:51:42,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 18:51:42,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 18:51:42,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619345138] [2022-04-06 18:51:42,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619345138] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 18:51:42,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 18:51:42,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 18:51:42,634 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 18:51:42,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [700455035] [2022-04-06 18:51:42,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [700455035] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 18:51:42,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 18:51:42,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 18:51:42,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063334613] [2022-04-06 18:51:42,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 18:51:42,640 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 18:51:42,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 18:51:42,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 18:51:42,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 18:51:42,665 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) [2022-04-06 18:51:43,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 18:51:43,038 INFO L93 Difference]: Finished difference Result 376 states and 631 transitions. [2022-04-06 18:51:43,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 18:51:43,040 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 [2022-04-06 18:51:43,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 18:51:43,049 INFO L225 Difference]: With dead ends: 376 [2022-04-06 18:51:43,049 INFO L226 Difference]: Without dead ends: 219 [2022-04-06 18:51:43,053 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-06 18:51:43,055 INFO L913 BasicCegarLoop]: 215 mSDtfsCounter, 578 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-06 18:51:43,056 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [580 Valid, 224 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-06 18:51:43,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-04-06 18:51:43,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2022-04-06 18:51:43,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 214 states have (on average 1.4906542056074767) internal successors, (319), 214 states have internal predecessors, (319), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 18:51:43,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 323 transitions. [2022-04-06 18:51:43,119 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 323 transitions. Word has length 30 [2022-04-06 18:51:43,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 18:51:43,119 INFO L478 AbstractCegarLoop]: Abstraction has 219 states and 323 transitions. [2022-04-06 18:51:43,119 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) [2022-04-06 18:51:43,120 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 323 transitions. [2022-04-06 18:51:43,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-04-06 18:51:43,123 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 18:51:43,123 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 18:51:43,123 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-06 18:51:43,124 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 18:51:43,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 18:51:43,124 INFO L85 PathProgramCache]: Analyzing trace with hash -67654802, now seen corresponding path program 1 times [2022-04-06 18:51:43,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 18:51:43,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1623540493] [2022-04-06 18:51:43,126 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 18:51:43,126 INFO L85 PathProgramCache]: Analyzing trace with hash -67654802, now seen corresponding path program 2 times [2022-04-06 18:51:43,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 18:51:43,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87504899] [2022-04-06 18:51:43,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 18:51:43,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 18:51:43,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 18:51:43,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 18:51:43,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 18:51:43,254 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 18:51:43,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 18:51:43,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87504899] [2022-04-06 18:51:43,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87504899] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 18:51:43,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 18:51:43,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 18:51:43,258 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 18:51:43,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1623540493] [2022-04-06 18:51:43,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1623540493] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 18:51:43,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 18:51:43,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 18:51:43,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825867322] [2022-04-06 18:51:43,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 18:51:43,260 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 18:51:43,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 18:51:43,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 18:51:43,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 18:51:43,261 INFO L87 Difference]: Start difference. First operand 219 states and 323 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 18:51:43,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 18:51:43,442 INFO L93 Difference]: Finished difference Result 349 states and 522 transitions. [2022-04-06 18:51:43,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 18:51:43,442 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 [2022-04-06 18:51:43,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 18:51:43,444 INFO L225 Difference]: With dead ends: 349 [2022-04-06 18:51:43,444 INFO L226 Difference]: Without dead ends: 244 [2022-04-06 18:51:43,444 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-06 18:51:43,445 INFO L913 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 [2022-04-06 18:51:43,445 INFO L914 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] [2022-04-06 18:51:43,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2022-04-06 18:51:43,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 236. [2022-04-06 18:51:43,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 231 states have (on average 1.4761904761904763) internal successors, (341), 231 states have internal predecessors, (341), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 18:51:43,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 345 transitions. [2022-04-06 18:51:43,458 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 345 transitions. Word has length 44 [2022-04-06 18:51:43,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 18:51:43,458 INFO L478 AbstractCegarLoop]: Abstraction has 236 states and 345 transitions. [2022-04-06 18:51:43,458 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) [2022-04-06 18:51:43,459 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 345 transitions. [2022-04-06 18:51:43,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-04-06 18:51:43,460 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 18:51:43,460 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 18:51:43,460 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-06 18:51:43,460 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 18:51:43,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 18:51:43,461 INFO L85 PathProgramCache]: Analyzing trace with hash 791020593, now seen corresponding path program 1 times [2022-04-06 18:51:43,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 18:51:43,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [119710469] [2022-04-06 18:51:43,461 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 18:51:43,461 INFO L85 PathProgramCache]: Analyzing trace with hash 791020593, now seen corresponding path program 2 times [2022-04-06 18:51:43,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 18:51:43,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590794708] [2022-04-06 18:51:43,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 18:51:43,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 18:51:43,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 18:51:43,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 18:51:43,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 18:51:43,538 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-04-06 18:51:43,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 18:51:43,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590794708] [2022-04-06 18:51:43,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590794708] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 18:51:43,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 18:51:43,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 18:51:43,539 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 18:51:43,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [119710469] [2022-04-06 18:51:43,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [119710469] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 18:51:43,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 18:51:43,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 18:51:43,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146184116] [2022-04-06 18:51:43,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 18:51:43,539 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 18:51:43,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 18:51:43,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 18:51:43,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 18:51:43,540 INFO L87 Difference]: Start difference. First operand 236 states and 345 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 18:51:43,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 18:51:43,780 INFO L93 Difference]: Finished difference Result 561 states and 851 transitions. [2022-04-06 18:51:43,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 18:51:43,780 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 [2022-04-06 18:51:43,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 18:51:43,782 INFO L225 Difference]: With dead ends: 561 [2022-04-06 18:51:43,782 INFO L226 Difference]: Without dead ends: 336 [2022-04-06 18:51:43,784 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-06 18:51:43,785 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 209 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-06 18:51:43,788 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [209 Valid, 204 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-06 18:51:43,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2022-04-06 18:51:43,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 318. [2022-04-06 18:51:43,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 313 states have (on average 1.4089456869009584) internal successors, (441), 313 states have internal predecessors, (441), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 18:51:43,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 445 transitions. [2022-04-06 18:51:43,812 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 445 transitions. Word has length 61 [2022-04-06 18:51:43,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 18:51:43,813 INFO L478 AbstractCegarLoop]: Abstraction has 318 states and 445 transitions. [2022-04-06 18:51:43,815 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) [2022-04-06 18:51:43,815 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 445 transitions. [2022-04-06 18:51:43,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-04-06 18:51:43,819 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 18:51:43,819 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 18:51:43,820 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-06 18:51:43,821 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 18:51:43,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 18:51:43,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1014417741, now seen corresponding path program 1 times [2022-04-06 18:51:43,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 18:51:43,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1828455671] [2022-04-06 18:51:43,824 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 18:51:43,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1014417741, now seen corresponding path program 2 times [2022-04-06 18:51:43,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 18:51:43,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493970519] [2022-04-06 18:51:43,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 18:51:43,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 18:51:43,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 18:51:43,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 18:51:43,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 18:51:43,904 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-04-06 18:51:43,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 18:51:43,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493970519] [2022-04-06 18:51:43,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493970519] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 18:51:43,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 18:51:43,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 18:51:43,905 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 18:51:43,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1828455671] [2022-04-06 18:51:43,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1828455671] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 18:51:43,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 18:51:43,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 18:51:43,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945467017] [2022-04-06 18:51:43,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 18:51:43,906 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 18:51:43,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 18:51:43,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 18:51:43,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 18:51:43,906 INFO L87 Difference]: Start difference. First operand 318 states and 445 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 18:51:44,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 18:51:44,100 INFO L93 Difference]: Finished difference Result 673 states and 957 transitions. [2022-04-06 18:51:44,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 18:51:44,100 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 [2022-04-06 18:51:44,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 18:51:44,102 INFO L225 Difference]: With dead ends: 673 [2022-04-06 18:51:44,102 INFO L226 Difference]: Without dead ends: 368 [2022-04-06 18:51:44,103 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-06 18:51:44,104 INFO L913 BasicCegarLoop]: 187 mSDtfsCounter, 195 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-06 18:51:44,105 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [195 Valid, 194 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-06 18:51:44,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2022-04-06 18:51:44,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 356. [2022-04-06 18:51:44,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 351 states have (on average 1.393162393162393) internal successors, (489), 351 states have internal predecessors, (489), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 18:51:44,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 493 transitions. [2022-04-06 18:51:44,121 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 493 transitions. Word has length 61 [2022-04-06 18:51:44,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 18:51:44,122 INFO L478 AbstractCegarLoop]: Abstraction has 356 states and 493 transitions. [2022-04-06 18:51:44,122 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) [2022-04-06 18:51:44,122 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 493 transitions. [2022-04-06 18:51:44,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-04-06 18:51:44,124 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 18:51:44,126 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 18:51:44,126 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-06 18:51:44,129 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 18:51:44,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 18:51:44,130 INFO L85 PathProgramCache]: Analyzing trace with hash -2014829456, now seen corresponding path program 1 times [2022-04-06 18:51:44,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 18:51:44,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1619876544] [2022-04-06 18:51:44,133 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 18:51:44,133 INFO L85 PathProgramCache]: Analyzing trace with hash -2014829456, now seen corresponding path program 2 times [2022-04-06 18:51:44,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 18:51:44,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282054620] [2022-04-06 18:51:44,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 18:51:44,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 18:51:44,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 18:51:44,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 18:51:44,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 18:51:44,182 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-04-06 18:51:44,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 18:51:44,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282054620] [2022-04-06 18:51:44,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282054620] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 18:51:44,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 18:51:44,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 18:51:44,182 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 18:51:44,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1619876544] [2022-04-06 18:51:44,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1619876544] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 18:51:44,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 18:51:44,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 18:51:44,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177289291] [2022-04-06 18:51:44,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 18:51:44,199 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 18:51:44,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 18:51:44,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 18:51:44,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 18:51:44,200 INFO L87 Difference]: Start difference. First operand 356 states and 493 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 18:51:44,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 18:51:44,365 INFO L93 Difference]: Finished difference Result 805 states and 1153 transitions. [2022-04-06 18:51:44,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 18:51:44,365 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 [2022-04-06 18:51:44,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 18:51:44,367 INFO L225 Difference]: With dead ends: 805 [2022-04-06 18:51:44,367 INFO L226 Difference]: Without dead ends: 460 [2022-04-06 18:51:44,367 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-06 18:51:44,368 INFO L913 BasicCegarLoop]: 174 mSDtfsCounter, 295 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-06 18:51:44,368 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [295 Valid, 181 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-06 18:51:44,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2022-04-06 18:51:44,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 434. [2022-04-06 18:51:44,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 429 states have (on average 1.4522144522144522) internal successors, (623), 429 states have internal predecessors, (623), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 18:51:44,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 627 transitions. [2022-04-06 18:51:44,386 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 627 transitions. Word has length 74 [2022-04-06 18:51:44,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 18:51:44,387 INFO L478 AbstractCegarLoop]: Abstraction has 434 states and 627 transitions. [2022-04-06 18:51:44,387 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) [2022-04-06 18:51:44,387 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 627 transitions. [2022-04-06 18:51:44,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-04-06 18:51:44,388 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 18:51:44,388 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 18:51:44,388 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-06 18:51:44,388 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 18:51:44,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 18:51:44,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1130395829, now seen corresponding path program 1 times [2022-04-06 18:51:44,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 18:51:44,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1765326226] [2022-04-06 18:51:44,389 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 18:51:44,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1130395829, now seen corresponding path program 2 times [2022-04-06 18:51:44,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 18:51:44,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490249469] [2022-04-06 18:51:44,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 18:51:44,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 18:51:44,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 18:51:44,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 18:51:44,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 18:51:44,433 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-04-06 18:51:44,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 18:51:44,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490249469] [2022-04-06 18:51:44,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490249469] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 18:51:44,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 18:51:44,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 18:51:44,434 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 18:51:44,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1765326226] [2022-04-06 18:51:44,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1765326226] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 18:51:44,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 18:51:44,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 18:51:44,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031077353] [2022-04-06 18:51:44,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 18:51:44,434 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 18:51:44,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 18:51:44,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 18:51:44,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 18:51:44,435 INFO L87 Difference]: Start difference. First operand 434 states and 627 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 18:51:44,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 18:51:44,654 INFO L93 Difference]: Finished difference Result 903 states and 1314 transitions. [2022-04-06 18:51:44,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 18:51:44,654 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 [2022-04-06 18:51:44,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 18:51:44,656 INFO L225 Difference]: With dead ends: 903 [2022-04-06 18:51:44,656 INFO L226 Difference]: Without dead ends: 482 [2022-04-06 18:51:44,657 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-06 18:51:44,657 INFO L913 BasicCegarLoop]: 186 mSDtfsCounter, 185 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-06 18:51:44,657 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [185 Valid, 193 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-06 18:51:44,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2022-04-06 18:51:44,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 476. [2022-04-06 18:51:44,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 471 states have (on average 1.4331210191082802) internal successors, (675), 471 states have internal predecessors, (675), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 18:51:44,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 679 transitions. [2022-04-06 18:51:44,697 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 679 transitions. Word has length 78 [2022-04-06 18:51:44,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 18:51:44,697 INFO L478 AbstractCegarLoop]: Abstraction has 476 states and 679 transitions. [2022-04-06 18:51:44,698 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) [2022-04-06 18:51:44,698 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 679 transitions. [2022-04-06 18:51:44,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-04-06 18:51:44,699 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 18:51:44,699 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 18:51:44,699 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-06 18:51:44,699 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 18:51:44,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 18:51:44,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1894097131, now seen corresponding path program 1 times [2022-04-06 18:51:44,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 18:51:44,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [524891640] [2022-04-06 18:51:44,700 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 18:51:44,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1894097131, now seen corresponding path program 2 times [2022-04-06 18:51:44,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 18:51:44,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873586609] [2022-04-06 18:51:44,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 18:51:44,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 18:51:44,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 18:51:44,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 18:51:44,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 18:51:44,754 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-04-06 18:51:44,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 18:51:44,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873586609] [2022-04-06 18:51:44,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873586609] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 18:51:44,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 18:51:44,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 18:51:44,756 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 18:51:44,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [524891640] [2022-04-06 18:51:44,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [524891640] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 18:51:44,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 18:51:44,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 18:51:44,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156239910] [2022-04-06 18:51:44,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 18:51:44,757 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 18:51:44,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 18:51:44,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 18:51:44,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 18:51:44,758 INFO L87 Difference]: Start difference. First operand 476 states and 679 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 18:51:44,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 18:51:44,917 INFO L93 Difference]: Finished difference Result 956 states and 1369 transitions. [2022-04-06 18:51:44,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 18:51:44,918 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 [2022-04-06 18:51:44,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 18:51:44,920 INFO L225 Difference]: With dead ends: 956 [2022-04-06 18:51:44,920 INFO L226 Difference]: Without dead ends: 714 [2022-04-06 18:51:44,921 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-06 18:51:44,921 INFO L913 BasicCegarLoop]: 317 mSDtfsCounter, 287 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-06 18:51:44,921 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [287 Valid, 324 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-06 18:51:44,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2022-04-06 18:51:44,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 714. [2022-04-06 18:51:44,949 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) [2022-04-06 18:51:44,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 714 states to 714 states and 1017 transitions. [2022-04-06 18:51:44,951 INFO L78 Accepts]: Start accepts. Automaton has 714 states and 1017 transitions. Word has length 98 [2022-04-06 18:51:44,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 18:51:44,951 INFO L478 AbstractCegarLoop]: Abstraction has 714 states and 1017 transitions. [2022-04-06 18:51:44,951 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) [2022-04-06 18:51:44,951 INFO L276 IsEmpty]: Start isEmpty. Operand 714 states and 1017 transitions. [2022-04-06 18:51:44,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-04-06 18:51:44,952 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 18:51:44,952 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 18:51:44,952 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-06 18:51:44,952 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 18:51:44,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 18:51:44,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1721597911, now seen corresponding path program 1 times [2022-04-06 18:51:44,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 18:51:44,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [155295036] [2022-04-06 18:51:44,953 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 18:51:44,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1721597911, now seen corresponding path program 2 times [2022-04-06 18:51:44,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 18:51:44,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683845276] [2022-04-06 18:51:44,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 18:51:44,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 18:51:44,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 18:51:44,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 18:51:44,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 18:51:44,982 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-04-06 18:51:44,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 18:51:44,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683845276] [2022-04-06 18:51:44,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683845276] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 18:51:44,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 18:51:44,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 18:51:44,982 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 18:51:44,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [155295036] [2022-04-06 18:51:44,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [155295036] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 18:51:44,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 18:51:44,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 18:51:44,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812580246] [2022-04-06 18:51:44,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 18:51:44,983 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 18:51:44,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 18:51:44,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 18:51:44,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 18:51:44,983 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) [2022-04-06 18:51:45,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 18:51:45,156 INFO L93 Difference]: Finished difference Result 1215 states and 1730 transitions. [2022-04-06 18:51:45,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 18:51:45,157 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 [2022-04-06 18:51:45,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 18:51:45,159 INFO L225 Difference]: With dead ends: 1215 [2022-04-06 18:51:45,159 INFO L226 Difference]: Without dead ends: 735 [2022-04-06 18:51:45,160 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-06 18:51:45,161 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 183 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-06 18:51:45,161 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 204 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-06 18:51:45,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2022-04-06 18:51:45,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 735. [2022-04-06 18:51:45,186 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) [2022-04-06 18:51:45,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 1044 transitions. [2022-04-06 18:51:45,187 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 1044 transitions. Word has length 98 [2022-04-06 18:51:45,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 18:51:45,188 INFO L478 AbstractCegarLoop]: Abstraction has 735 states and 1044 transitions. [2022-04-06 18:51:45,188 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) [2022-04-06 18:51:45,188 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 1044 transitions. [2022-04-06 18:51:45,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-04-06 18:51:45,189 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 18:51:45,189 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 18:51:45,189 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-06 18:51:45,189 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 18:51:45,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 18:51:45,190 INFO L85 PathProgramCache]: Analyzing trace with hash -255266854, now seen corresponding path program 1 times [2022-04-06 18:51:45,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 18:51:45,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [728937101] [2022-04-06 18:51:45,190 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 18:51:45,191 INFO L85 PathProgramCache]: Analyzing trace with hash -255266854, now seen corresponding path program 2 times [2022-04-06 18:51:45,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 18:51:45,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485002137] [2022-04-06 18:51:45,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 18:51:45,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 18:51:45,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 18:51:45,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 18:51:45,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 18:51:45,225 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-04-06 18:51:45,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 18:51:45,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485002137] [2022-04-06 18:51:45,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485002137] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 18:51:45,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 18:51:45,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 18:51:45,226 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 18:51:45,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [728937101] [2022-04-06 18:51:45,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [728937101] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 18:51:45,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 18:51:45,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 18:51:45,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639669378] [2022-04-06 18:51:45,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 18:51:45,226 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 18:51:45,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 18:51:45,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 18:51:45,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 18:51:45,227 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) [2022-04-06 18:51:45,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 18:51:45,381 INFO L93 Difference]: Finished difference Result 1261 states and 1787 transitions. [2022-04-06 18:51:45,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 18:51:45,382 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 [2022-04-06 18:51:45,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 18:51:45,384 INFO L225 Difference]: With dead ends: 1261 [2022-04-06 18:51:45,384 INFO L226 Difference]: Without dead ends: 760 [2022-04-06 18:51:45,385 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-06 18:51:45,386 INFO L913 BasicCegarLoop]: 203 mSDtfsCounter, 179 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-06 18:51:45,387 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 210 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-06 18:51:45,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2022-04-06 18:51:45,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 760. [2022-04-06 18:51:45,412 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) [2022-04-06 18:51:45,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 760 states to 760 states and 1074 transitions. [2022-04-06 18:51:45,414 INFO L78 Accepts]: Start accepts. Automaton has 760 states and 1074 transitions. Word has length 100 [2022-04-06 18:51:45,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 18:51:45,415 INFO L478 AbstractCegarLoop]: Abstraction has 760 states and 1074 transitions. [2022-04-06 18:51:45,415 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) [2022-04-06 18:51:45,415 INFO L276 IsEmpty]: Start isEmpty. Operand 760 states and 1074 transitions. [2022-04-06 18:51:45,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-04-06 18:51:45,416 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 18:51:45,416 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 18:51:45,416 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-06 18:51:45,416 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 18:51:45,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 18:51:45,417 INFO L85 PathProgramCache]: Analyzing trace with hash -121253348, now seen corresponding path program 1 times [2022-04-06 18:51:45,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 18:51:45,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1737402092] [2022-04-06 18:51:45,417 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 18:51:45,417 INFO L85 PathProgramCache]: Analyzing trace with hash -121253348, now seen corresponding path program 2 times [2022-04-06 18:51:45,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 18:51:45,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757069514] [2022-04-06 18:51:45,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 18:51:45,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 18:51:45,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 18:51:45,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 18:51:45,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 18:51:45,468 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-04-06 18:51:45,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 18:51:45,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757069514] [2022-04-06 18:51:45,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757069514] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 18:51:45,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 18:51:45,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-06 18:51:45,469 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 18:51:45,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1737402092] [2022-04-06 18:51:45,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1737402092] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 18:51:45,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 18:51:45,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-06 18:51:45,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451115506] [2022-04-06 18:51:45,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 18:51:45,469 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-06 18:51:45,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 18:51:45,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-06 18:51:45,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-06 18:51:45,470 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) [2022-04-06 18:51:45,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 18:51:45,782 INFO L93 Difference]: Finished difference Result 1568 states and 2229 transitions. [2022-04-06 18:51:45,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-06 18:51:45,782 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 [2022-04-06 18:51:45,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 18:51:45,785 INFO L225 Difference]: With dead ends: 1568 [2022-04-06 18:51:45,785 INFO L226 Difference]: Without dead ends: 793 [2022-04-06 18:51:45,787 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-06 18:51:45,787 INFO L913 BasicCegarLoop]: 150 mSDtfsCounter, 454 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-06 18:51:45,788 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [454 Valid, 167 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-06 18:51:45,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2022-04-06 18:51:45,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 766. [2022-04-06 18:51:45,834 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) [2022-04-06 18:51:45,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 1082 transitions. [2022-04-06 18:51:45,836 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 1082 transitions. Word has length 100 [2022-04-06 18:51:45,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 18:51:45,836 INFO L478 AbstractCegarLoop]: Abstraction has 766 states and 1082 transitions. [2022-04-06 18:51:45,836 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) [2022-04-06 18:51:45,836 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 1082 transitions. [2022-04-06 18:51:45,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-04-06 18:51:45,839 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 18:51:45,839 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 18:51:45,839 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-06 18:51:45,839 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 18:51:45,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 18:51:45,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1655849395, now seen corresponding path program 1 times [2022-04-06 18:51:45,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 18:51:45,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [915585851] [2022-04-06 18:51:45,840 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 18:51:45,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1655849395, now seen corresponding path program 2 times [2022-04-06 18:51:45,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 18:51:45,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265285106] [2022-04-06 18:51:45,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 18:51:45,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 18:51:45,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-06 18:51:45,863 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-06 18:51:45,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-06 18:51:45,930 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-04-06 18:51:45,930 INFO L130 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found a feasible trace [2022-04-06 18:51:45,931 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-06 18:51:45,938 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-06 18:51:45,939 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-06 18:51:45,942 INFO L719 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2] [2022-04-06 18:51:45,945 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-04-06 18:51:45,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.04 06:51:45 BoogieIcfgContainer [2022-04-06 18:51:45,968 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-06 18:51:45,968 INFO L158 Benchmark]: Toolchain (without parser) took 4497.22ms. Allocated memory was 175.1MB in the beginning and 295.7MB in the end (delta: 120.6MB). Free memory was 124.9MB in the beginning and 170.3MB in the end (delta: -45.3MB). Peak memory consumption was 74.7MB. Max. memory is 8.0GB. [2022-04-06 18:51:45,969 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 175.1MB. Free memory was 141.7MB in the beginning and 141.5MB in the end (delta: 151.8kB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-06 18:51:45,969 INFO L158 Benchmark]: CACSL2BoogieTranslator took 298.59ms. Allocated memory is still 175.1MB. Free memory was 124.8MB in the beginning and 148.1MB in the end (delta: -23.3MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-04-06 18:51:45,969 INFO L158 Benchmark]: Boogie Preprocessor took 46.37ms. Allocated memory is still 175.1MB. Free memory was 148.1MB in the beginning and 145.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-04-06 18:51:45,969 INFO L158 Benchmark]: RCFGBuilder took 522.72ms. Allocated memory is still 175.1MB. Free memory was 145.6MB in the beginning and 120.2MB in the end (delta: 25.4MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2022-04-06 18:51:45,970 INFO L158 Benchmark]: TraceAbstraction took 3625.22ms. Allocated memory was 175.1MB in the beginning and 295.7MB in the end (delta: 120.6MB). Free memory was 119.4MB in the beginning and 170.3MB in the end (delta: -50.9MB). Peak memory consumption was 70.6MB. Max. memory is 8.0GB. [2022-04-06 18:51:45,971 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 175.1MB. Free memory was 141.7MB in the beginning and 141.5MB in the end (delta: 151.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 298.59ms. Allocated memory is still 175.1MB. Free memory was 124.8MB in the beginning and 148.1MB in the end (delta: -23.3MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 46.37ms. Allocated memory is still 175.1MB. Free memory was 148.1MB in the beginning and 145.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 522.72ms. Allocated memory is still 175.1MB. Free memory was 145.6MB in the beginning and 120.2MB in the end (delta: 25.4MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * TraceAbstraction took 3625.22ms. Allocated memory was 175.1MB in the beginning and 295.7MB in the end (delta: 120.6MB). Free memory was 119.4MB in the beginning and 170.3MB in the end (delta: -50.9MB). Peak memory consumption was 70.6MB. 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 = __VERIFIER_nondet_int() ; [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 [L265] COND FALSE !(ret <= 0) [L268] s__state = 4384 [L269] s__init_num = 0 [L270] COND TRUE 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 [L276] ret = __VERIFIER_nondet_int() [L277] COND TRUE blastFlag == 1 [L278] blastFlag = 2 [L280] COND FALSE !(ret <= 0) [L283] COND FALSE !(\read(s__hit)) [L286] s__state = 4400 [L288] 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 [L293] __cil_tmp56 = (unsigned long )s__s3__tmp__new_cipher__algorithms [L294] COND FALSE !(__cil_tmp56 + 256UL) [L297] ret = __VERIFIER_nondet_int() [L298] COND TRUE blastFlag == 2 [L299] 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: 3.6s, OverallIterations: 11, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2756 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2754 mSDsluCounter, 2094 SdHoareTripleChecker+Invalid, 1.3s 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, 97 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-04-06 18:51:46,002 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...