/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf -i ../../../trunk/examples/svcomp/openssl-simplified/s3_srvr_13.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-07 00:50:06,027 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-07 00:50:06,029 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-07 00:50:06,068 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-04-07 00:50:06,104 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-07 00:50:06,105 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-07 00:50:06,106 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-07 00:50:06,106 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-04-07 00:50:06,115 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-07 00:50:06,115 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-07 00:50:06,116 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-07 00:50:06,116 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-07 00:50:06,116 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-07 00:50:06,116 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-07 00:50:06,116 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-07 00:50:06,116 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-07 00:50:06,116 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-07 00:50:06,117 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-07 00:50:06,117 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-07 00:50:06,117 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-07 00:50:06,117 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-07 00:50:06,117 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-07 00:50:06,117 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-07 00:50:06,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-07 00:50:06,117 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-07 00:50:06,118 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-04-07 00:50:06,118 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-04-07 00:50:06,118 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-04-07 00:50:06,118 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-07 00:50:06,118 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-04-07 00:50:06,118 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-07 00:50:06,288 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-07 00:50:06,303 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-07 00:50:06,305 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-07 00:50:06,306 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-07 00:50:06,309 INFO L275 PluginConnector]: CDTParser initialized [2022-04-07 00:50:06,310 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl-simplified/s3_srvr_13.cil.c [2022-04-07 00:50:06,358 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecfcb260f/eb91cf6aad7548438e3f89e06bc9916c/FLAGaba231569 [2022-04-07 00:50:06,693 INFO L306 CDTParser]: Found 1 translation units. [2022-04-07 00:50:06,694 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_srvr_13.cil.c [2022-04-07 00:50:06,709 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecfcb260f/eb91cf6aad7548438e3f89e06bc9916c/FLAGaba231569 [2022-04-07 00:50:07,092 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecfcb260f/eb91cf6aad7548438e3f89e06bc9916c [2022-04-07 00:50:07,094 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-07 00:50:07,095 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-04-07 00:50:07,097 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-07 00:50:07,097 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-07 00:50:07,099 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-07 00:50:07,100 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.04 12:50:07" (1/1) ... [2022-04-07 00:50:07,100 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d5002b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 12:50:07, skipping insertion in model container [2022-04-07 00:50:07,101 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.04 12:50:07" (1/1) ... [2022-04-07 00:50:07,105 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-07 00:50:07,145 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-07 00:50:07,369 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_srvr_13.cil.c[45032,45045] [2022-04-07 00:50:07,379 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-07 00:50:07,384 INFO L203 MainTranslator]: Completed pre-run [2022-04-07 00:50:07,438 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_srvr_13.cil.c[45032,45045] [2022-04-07 00:50:07,440 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-07 00:50:07,448 INFO L208 MainTranslator]: Completed translation [2022-04-07 00:50:07,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 12:50:07 WrapperNode [2022-04-07 00:50:07,449 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-07 00:50:07,449 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-07 00:50:07,450 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-07 00:50:07,450 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-07 00:50:07,465 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 12:50:07" (1/1) ... [2022-04-07 00:50:07,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 12:50:07" (1/1) ... [2022-04-07 00:50:07,472 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 12:50:07" (1/1) ... [2022-04-07 00:50:07,472 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 12:50:07" (1/1) ... [2022-04-07 00:50:07,484 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 12:50:07" (1/1) ... [2022-04-07 00:50:07,492 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 12:50:07" (1/1) ... [2022-04-07 00:50:07,493 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 12:50:07" (1/1) ... [2022-04-07 00:50:07,496 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-07 00:50:07,496 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-07 00:50:07,497 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-07 00:50:07,497 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-07 00:50:07,499 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 12:50:07" (1/1) ... [2022-04-07 00:50:07,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-07 00:50:07,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-07 00:50:07,544 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) [2022-04-07 00:50:07,550 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 [2022-04-07 00:50:07,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-07 00:50:07,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-07 00:50:07,578 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-07 00:50:07,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-04-07 00:50:07,578 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-07 00:50:07,578 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-07 00:50:07,578 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-07 00:50:07,578 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-07 00:50:07,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-07 00:50:07,579 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-04-07 00:50:07,579 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-07 00:50:07,579 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-04-07 00:50:07,580 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-04-07 00:50:07,580 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-07 00:50:07,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-07 00:50:07,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-07 00:50:07,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-07 00:50:07,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-07 00:50:07,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-07 00:50:07,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-07 00:50:07,679 INFO L234 CfgBuilder]: Building ICFG [2022-04-07 00:50:07,683 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-07 00:50:07,734 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-07 00:50:08,033 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2022-04-07 00:50:08,033 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2022-04-07 00:50:08,038 INFO L275 CfgBuilder]: Performing block encoding [2022-04-07 00:50:08,044 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-07 00:50:08,044 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-07 00:50:08,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.04 12:50:08 BoogieIcfgContainer [2022-04-07 00:50:08,046 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-07 00:50:08,047 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-07 00:50:08,047 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-07 00:50:08,061 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-07 00:50:08,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.04 12:50:07" (1/3) ... [2022-04-07 00:50:08,062 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@168ddd52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.04 12:50:08, skipping insertion in model container [2022-04-07 00:50:08,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 12:50:07" (2/3) ... [2022-04-07 00:50:08,062 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@168ddd52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.04 12:50:08, skipping insertion in model container [2022-04-07 00:50:08,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.04 12:50:08" (3/3) ... [2022-04-07 00:50:08,063 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_13.cil.c [2022-04-07 00:50:08,067 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-04-07 00:50:08,067 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-07 00:50:08,113 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-07 00:50:08,120 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 [2022-04-07 00:50:08,120 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-07 00:50:08,136 INFO L276 IsEmpty]: Start isEmpty. Operand has 162 states, 154 states have (on average 1.7272727272727273) internal successors, (266), 155 states have internal predecessors, (266), 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) [2022-04-07 00:50:08,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-07 00:50:08,143 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:08,144 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, 1, 1] [2022-04-07 00:50:08,144 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:08,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:08,148 INFO L85 PathProgramCache]: Analyzing trace with hash -963493744, now seen corresponding path program 1 times [2022-04-07 00:50:08,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:08,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1533378882] [2022-04-07 00:50:08,161 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:50:08,162 INFO L85 PathProgramCache]: Analyzing trace with hash -963493744, now seen corresponding path program 2 times [2022-04-07 00:50:08,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:08,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444883583] [2022-04-07 00:50:08,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:08,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:08,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:08,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:08,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:08,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 00:50:08,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:08,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444883583] [2022-04-07 00:50:08,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444883583] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:08,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:08,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 00:50:08,412 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:08,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1533378882] [2022-04-07 00:50:08,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1533378882] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:08,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:08,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 00:50:08,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329059093] [2022-04-07 00:50:08,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:08,417 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 00:50:08,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:08,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 00:50:08,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 00:50:08,441 INFO L87 Difference]: Start difference. First operand has 162 states, 154 states have (on average 1.7272727272727273) internal successors, (266), 155 states have internal predecessors, (266), 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 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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) [2022-04-07 00:50:08,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:08,984 INFO L93 Difference]: Finished difference Result 364 states and 611 transitions. [2022-04-07 00:50:08,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:50:08,987 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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 32 [2022-04-07 00:50:08,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:08,993 INFO L225 Difference]: With dead ends: 364 [2022-04-07 00:50:08,993 INFO L226 Difference]: Without dead ends: 185 [2022-04-07 00:50:08,996 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-04-07 00:50:08,998 INFO L913 BasicCegarLoop]: 231 mSDtfsCounter, 542 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 543 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:08,999 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [543 Valid, 246 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-04-07 00:50:09,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-04-07 00:50:09,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 162. [2022-04-07 00:50:09,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 157 states have (on average 1.5414012738853504) internal successors, (242), 157 states have internal predecessors, (242), 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) [2022-04-07 00:50:09,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 246 transitions. [2022-04-07 00:50:09,084 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 246 transitions. Word has length 32 [2022-04-07 00:50:09,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:09,085 INFO L478 AbstractCegarLoop]: Abstraction has 162 states and 246 transitions. [2022-04-07 00:50:09,085 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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) [2022-04-07 00:50:09,085 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 246 transitions. [2022-04-07 00:50:09,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-04-07 00:50:09,086 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:09,086 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, 1, 1, 1] [2022-04-07 00:50:09,086 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-07 00:50:09,087 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:09,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:09,087 INFO L85 PathProgramCache]: Analyzing trace with hash -76895489, now seen corresponding path program 1 times [2022-04-07 00:50:09,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:09,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1892569903] [2022-04-07 00:50:09,088 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:50:09,088 INFO L85 PathProgramCache]: Analyzing trace with hash -76895489, now seen corresponding path program 2 times [2022-04-07 00:50:09,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:09,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258869391] [2022-04-07 00:50:09,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:09,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:09,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:09,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:09,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:09,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 00:50:09,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:09,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258869391] [2022-04-07 00:50:09,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258869391] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:09,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:09,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 00:50:09,187 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:09,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1892569903] [2022-04-07 00:50:09,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1892569903] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:09,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:09,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 00:50:09,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364873852] [2022-04-07 00:50:09,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:09,188 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 00:50:09,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:09,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 00:50:09,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 00:50:09,189 INFO L87 Difference]: Start difference. First operand 162 states and 246 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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) [2022-04-07 00:50:09,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:09,466 INFO L93 Difference]: Finished difference Result 330 states and 501 transitions. [2022-04-07 00:50:09,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 00:50:09,466 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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 33 [2022-04-07 00:50:09,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:09,473 INFO L225 Difference]: With dead ends: 330 [2022-04-07 00:50:09,475 INFO L226 Difference]: Without dead ends: 182 [2022-04-07 00:50:09,478 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-04-07 00:50:09,482 INFO L913 BasicCegarLoop]: 169 mSDtfsCounter, 424 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:09,482 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [424 Valid, 181 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:50:09,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-04-07 00:50:09,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 152. [2022-04-07 00:50:09,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 147 states have (on average 1.5578231292517006) internal successors, (229), 147 states have internal predecessors, (229), 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) [2022-04-07 00:50:09,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 233 transitions. [2022-04-07 00:50:09,499 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 233 transitions. Word has length 33 [2022-04-07 00:50:09,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:09,499 INFO L478 AbstractCegarLoop]: Abstraction has 152 states and 233 transitions. [2022-04-07 00:50:09,500 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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) [2022-04-07 00:50:09,500 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 233 transitions. [2022-04-07 00:50:09,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-04-07 00:50:09,500 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:09,501 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, 1, 1, 1] [2022-04-07 00:50:09,501 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-07 00:50:09,501 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:09,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:09,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1425858867, now seen corresponding path program 1 times [2022-04-07 00:50:09,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:09,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1503459968] [2022-04-07 00:50:09,502 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:50:09,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1425858867, now seen corresponding path program 2 times [2022-04-07 00:50:09,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:09,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310258804] [2022-04-07 00:50:09,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:09,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:09,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:09,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:09,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:09,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 00:50:09,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:09,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310258804] [2022-04-07 00:50:09,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310258804] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:09,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:09,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:09,561 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:09,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1503459968] [2022-04-07 00:50:09,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1503459968] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:09,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:09,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:09,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197296101] [2022-04-07 00:50:09,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:09,562 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:50:09,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:09,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:50:09,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 00:50:09,563 INFO L87 Difference]: Start difference. First operand 152 states and 233 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 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) [2022-04-07 00:50:09,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:09,820 INFO L93 Difference]: Finished difference Result 337 states and 535 transitions. [2022-04-07 00:50:09,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 00:50:09,820 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 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 33 [2022-04-07 00:50:09,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:09,821 INFO L225 Difference]: With dead ends: 337 [2022-04-07 00:50:09,822 INFO L226 Difference]: Without dead ends: 151 [2022-04-07 00:50:09,822 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 [2022-04-07 00:50:09,823 INFO L913 BasicCegarLoop]: 237 mSDtfsCounter, 269 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:09,823 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 244 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:50:09,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2022-04-07 00:50:09,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2022-04-07 00:50:09,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 146 states have (on average 1.547945205479452) internal successors, (226), 146 states have internal predecessors, (226), 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) [2022-04-07 00:50:09,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 230 transitions. [2022-04-07 00:50:09,837 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 230 transitions. Word has length 33 [2022-04-07 00:50:09,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:09,837 INFO L478 AbstractCegarLoop]: Abstraction has 151 states and 230 transitions. [2022-04-07 00:50:09,837 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 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) [2022-04-07 00:50:09,837 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 230 transitions. [2022-04-07 00:50:09,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-04-07 00:50:09,838 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:09,838 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, 1, 1, 1] [2022-04-07 00:50:09,838 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-07 00:50:09,838 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:09,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:09,839 INFO L85 PathProgramCache]: Analyzing trace with hash -319735020, now seen corresponding path program 1 times [2022-04-07 00:50:09,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:09,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [259904352] [2022-04-07 00:50:09,839 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:50:09,839 INFO L85 PathProgramCache]: Analyzing trace with hash -319735020, now seen corresponding path program 2 times [2022-04-07 00:50:09,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:09,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966962614] [2022-04-07 00:50:09,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:09,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:09,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:09,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:09,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:09,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 00:50:09,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:09,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966962614] [2022-04-07 00:50:09,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966962614] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:09,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:09,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 00:50:09,884 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:09,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [259904352] [2022-04-07 00:50:09,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [259904352] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:09,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:09,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 00:50:09,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201687760] [2022-04-07 00:50:09,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:09,885 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 00:50:09,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:09,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 00:50:09,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 00:50:09,886 INFO L87 Difference]: Start difference. First operand 151 states and 230 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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) [2022-04-07 00:50:10,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:10,181 INFO L93 Difference]: Finished difference Result 329 states and 498 transitions. [2022-04-07 00:50:10,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:50:10,182 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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 33 [2022-04-07 00:50:10,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:10,183 INFO L225 Difference]: With dead ends: 329 [2022-04-07 00:50:10,183 INFO L226 Difference]: Without dead ends: 192 [2022-04-07 00:50:10,185 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-04-07 00:50:10,190 INFO L913 BasicCegarLoop]: 176 mSDtfsCounter, 421 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:10,190 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [421 Valid, 188 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:50:10,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2022-04-07 00:50:10,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 149. [2022-04-07 00:50:10,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 144 states have (on average 1.5555555555555556) internal successors, (224), 144 states have internal predecessors, (224), 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) [2022-04-07 00:50:10,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 228 transitions. [2022-04-07 00:50:10,204 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 228 transitions. Word has length 33 [2022-04-07 00:50:10,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:10,205 INFO L478 AbstractCegarLoop]: Abstraction has 149 states and 228 transitions. [2022-04-07 00:50:10,205 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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) [2022-04-07 00:50:10,205 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 228 transitions. [2022-04-07 00:50:10,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-04-07 00:50:10,206 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:10,206 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:10,206 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-07 00:50:10,206 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:10,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:10,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1614356125, now seen corresponding path program 1 times [2022-04-07 00:50:10,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:10,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [503779016] [2022-04-07 00:50:10,207 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:50:10,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1614356125, now seen corresponding path program 2 times [2022-04-07 00:50:10,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:10,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920053760] [2022-04-07 00:50:10,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:10,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:10,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:10,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:10,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:10,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 00:50:10,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:10,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920053760] [2022-04-07 00:50:10,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920053760] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:10,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:10,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:10,273 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:10,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [503779016] [2022-04-07 00:50:10,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [503779016] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:10,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:10,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:10,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522890584] [2022-04-07 00:50:10,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:10,274 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:50:10,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:10,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:50:10,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 00:50:10,275 INFO L87 Difference]: Start difference. First operand 149 states and 228 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 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) [2022-04-07 00:50:10,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:10,467 INFO L93 Difference]: Finished difference Result 418 states and 647 transitions. [2022-04-07 00:50:10,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 00:50:10,467 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 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 39 [2022-04-07 00:50:10,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:10,468 INFO L225 Difference]: With dead ends: 418 [2022-04-07 00:50:10,468 INFO L226 Difference]: Without dead ends: 283 [2022-04-07 00:50:10,469 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 [2022-04-07 00:50:10,469 INFO L913 BasicCegarLoop]: 212 mSDtfsCounter, 581 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 581 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:10,470 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [581 Valid, 219 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:50:10,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2022-04-07 00:50:10,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 281. [2022-04-07 00:50:10,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 276 states have (on average 1.5289855072463767) internal successors, (422), 276 states have internal predecessors, (422), 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) [2022-04-07 00:50:10,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 426 transitions. [2022-04-07 00:50:10,488 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 426 transitions. Word has length 39 [2022-04-07 00:50:10,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:10,489 INFO L478 AbstractCegarLoop]: Abstraction has 281 states and 426 transitions. [2022-04-07 00:50:10,489 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 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) [2022-04-07 00:50:10,489 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 426 transitions. [2022-04-07 00:50:10,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-04-07 00:50:10,490 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:10,490 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:10,490 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-07 00:50:10,490 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:10,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:10,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1772802082, now seen corresponding path program 1 times [2022-04-07 00:50:10,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:10,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [523123774] [2022-04-07 00:50:10,491 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:50:10,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1772802082, now seen corresponding path program 2 times [2022-04-07 00:50:10,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:10,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491706217] [2022-04-07 00:50:10,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:10,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:10,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:10,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:10,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:10,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 00:50:10,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:10,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491706217] [2022-04-07 00:50:10,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491706217] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:10,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:10,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:10,538 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:10,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [523123774] [2022-04-07 00:50:10,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [523123774] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:10,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:10,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:10,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31470256] [2022-04-07 00:50:10,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:10,539 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:50:10,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:10,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:50:10,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 00:50:10,539 INFO L87 Difference]: Start difference. First operand 281 states and 426 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 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) [2022-04-07 00:50:10,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:10,747 INFO L93 Difference]: Finished difference Result 662 states and 1032 transitions. [2022-04-07 00:50:10,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 00:50:10,748 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 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 41 [2022-04-07 00:50:10,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:10,749 INFO L225 Difference]: With dead ends: 662 [2022-04-07 00:50:10,749 INFO L226 Difference]: Without dead ends: 395 [2022-04-07 00:50:10,750 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 [2022-04-07 00:50:10,750 INFO L913 BasicCegarLoop]: 232 mSDtfsCounter, 302 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:10,751 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 239 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:50:10,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2022-04-07 00:50:10,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 367. [2022-04-07 00:50:10,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 362 states have (on average 1.4530386740331491) internal successors, (526), 362 states have internal predecessors, (526), 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) [2022-04-07 00:50:10,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 530 transitions. [2022-04-07 00:50:10,808 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 530 transitions. Word has length 41 [2022-04-07 00:50:10,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:10,808 INFO L478 AbstractCegarLoop]: Abstraction has 367 states and 530 transitions. [2022-04-07 00:50:10,808 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 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) [2022-04-07 00:50:10,809 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 530 transitions. [2022-04-07 00:50:10,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-04-07 00:50:10,809 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:10,810 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:10,810 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-07 00:50:10,810 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:10,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:10,810 INFO L85 PathProgramCache]: Analyzing trace with hash 2030967520, now seen corresponding path program 1 times [2022-04-07 00:50:10,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:10,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [940204468] [2022-04-07 00:50:10,811 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:50:10,812 INFO L85 PathProgramCache]: Analyzing trace with hash 2030967520, now seen corresponding path program 2 times [2022-04-07 00:50:10,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:10,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575432938] [2022-04-07 00:50:10,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:10,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:10,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:10,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:10,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:10,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 00:50:10,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:10,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575432938] [2022-04-07 00:50:10,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575432938] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:10,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:10,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:10,861 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:10,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [940204468] [2022-04-07 00:50:10,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [940204468] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:10,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:10,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:10,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596335765] [2022-04-07 00:50:10,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:10,861 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:50:10,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:10,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:50:10,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 00:50:10,862 INFO L87 Difference]: Start difference. First operand 367 states and 530 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 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) [2022-04-07 00:50:11,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:11,082 INFO L93 Difference]: Finished difference Result 850 states and 1263 transitions. [2022-04-07 00:50:11,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 00:50:11,083 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 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 41 [2022-04-07 00:50:11,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:11,085 INFO L225 Difference]: With dead ends: 850 [2022-04-07 00:50:11,085 INFO L226 Difference]: Without dead ends: 473 [2022-04-07 00:50:11,086 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 [2022-04-07 00:50:11,086 INFO L913 BasicCegarLoop]: 234 mSDtfsCounter, 313 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:11,086 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [313 Valid, 241 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:50:11,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2022-04-07 00:50:11,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 461. [2022-04-07 00:50:11,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 456 states have (on average 1.4473684210526316) internal successors, (660), 456 states have internal predecessors, (660), 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) [2022-04-07 00:50:11,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 664 transitions. [2022-04-07 00:50:11,114 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 664 transitions. Word has length 41 [2022-04-07 00:50:11,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:11,114 INFO L478 AbstractCegarLoop]: Abstraction has 461 states and 664 transitions. [2022-04-07 00:50:11,114 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 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) [2022-04-07 00:50:11,115 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 664 transitions. [2022-04-07 00:50:11,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-04-07 00:50:11,116 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:11,116 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:11,116 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-07 00:50:11,116 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:11,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:11,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1025513814, now seen corresponding path program 1 times [2022-04-07 00:50:11,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:11,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [208441887] [2022-04-07 00:50:11,118 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:50:11,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1025513814, now seen corresponding path program 2 times [2022-04-07 00:50:11,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:11,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881228158] [2022-04-07 00:50:11,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:11,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:11,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:11,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:11,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:11,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 00:50:11,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:11,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881228158] [2022-04-07 00:50:11,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881228158] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:11,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:11,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:11,167 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:11,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [208441887] [2022-04-07 00:50:11,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [208441887] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:11,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:11,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:11,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421815988] [2022-04-07 00:50:11,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:11,168 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:50:11,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:11,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:50:11,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 00:50:11,168 INFO L87 Difference]: Start difference. First operand 461 states and 664 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 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) [2022-04-07 00:50:11,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:11,364 INFO L93 Difference]: Finished difference Result 920 states and 1326 transitions. [2022-04-07 00:50:11,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 00:50:11,364 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 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 41 [2022-04-07 00:50:11,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:11,366 INFO L225 Difference]: With dead ends: 920 [2022-04-07 00:50:11,366 INFO L226 Difference]: Without dead ends: 473 [2022-04-07 00:50:11,367 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 [2022-04-07 00:50:11,368 INFO L913 BasicCegarLoop]: 226 mSDtfsCounter, 221 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:11,368 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 233 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-07 00:50:11,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2022-04-07 00:50:11,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 471. [2022-04-07 00:50:11,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 466 states have (on average 1.44206008583691) internal successors, (672), 466 states have internal predecessors, (672), 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) [2022-04-07 00:50:11,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 676 transitions. [2022-04-07 00:50:11,402 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 676 transitions. Word has length 41 [2022-04-07 00:50:11,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:11,402 INFO L478 AbstractCegarLoop]: Abstraction has 471 states and 676 transitions. [2022-04-07 00:50:11,402 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 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) [2022-04-07 00:50:11,402 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 676 transitions. [2022-04-07 00:50:11,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-04-07 00:50:11,403 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:11,403 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:11,403 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-07 00:50:11,403 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:11,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:11,404 INFO L85 PathProgramCache]: Analyzing trace with hash 564813646, now seen corresponding path program 1 times [2022-04-07 00:50:11,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:11,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [649301992] [2022-04-07 00:50:11,404 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:50:11,404 INFO L85 PathProgramCache]: Analyzing trace with hash 564813646, now seen corresponding path program 2 times [2022-04-07 00:50:11,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:11,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855961711] [2022-04-07 00:50:11,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:11,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:11,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:11,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:11,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:11,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 00:50:11,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:11,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855961711] [2022-04-07 00:50:11,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855961711] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:11,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:11,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:11,448 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:11,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [649301992] [2022-04-07 00:50:11,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [649301992] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:11,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:11,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:11,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127661401] [2022-04-07 00:50:11,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:11,449 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:50:11,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:11,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:50:11,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 00:50:11,450 INFO L87 Difference]: Start difference. First operand 471 states and 676 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 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) [2022-04-07 00:50:11,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:11,664 INFO L93 Difference]: Finished difference Result 1058 states and 1561 transitions. [2022-04-07 00:50:11,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 00:50:11,664 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 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 43 [2022-04-07 00:50:11,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:11,666 INFO L225 Difference]: With dead ends: 1058 [2022-04-07 00:50:11,666 INFO L226 Difference]: Without dead ends: 577 [2022-04-07 00:50:11,667 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 [2022-04-07 00:50:11,668 INFO L913 BasicCegarLoop]: 234 mSDtfsCounter, 352 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:11,668 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [352 Valid, 241 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:50:11,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2022-04-07 00:50:11,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 533. [2022-04-07 00:50:11,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 528 states have (on average 1.4621212121212122) internal successors, (772), 528 states have internal predecessors, (772), 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) [2022-04-07 00:50:11,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 776 transitions. [2022-04-07 00:50:11,697 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 776 transitions. Word has length 43 [2022-04-07 00:50:11,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:11,697 INFO L478 AbstractCegarLoop]: Abstraction has 533 states and 776 transitions. [2022-04-07 00:50:11,697 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 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) [2022-04-07 00:50:11,698 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 776 transitions. [2022-04-07 00:50:11,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-04-07 00:50:11,698 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:11,698 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:11,698 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-07 00:50:11,699 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:11,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:11,699 INFO L85 PathProgramCache]: Analyzing trace with hash 924583977, now seen corresponding path program 1 times [2022-04-07 00:50:11,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:11,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1743064494] [2022-04-07 00:50:11,699 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:50:11,699 INFO L85 PathProgramCache]: Analyzing trace with hash 924583977, now seen corresponding path program 2 times [2022-04-07 00:50:11,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:11,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101152811] [2022-04-07 00:50:11,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:11,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:11,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:11,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:11,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:11,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 00:50:11,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:11,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101152811] [2022-04-07 00:50:11,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101152811] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:11,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:11,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:11,722 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:11,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1743064494] [2022-04-07 00:50:11,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1743064494] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:11,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:11,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:11,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563371308] [2022-04-07 00:50:11,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:11,723 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:50:11,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:11,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:50:11,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 00:50:11,724 INFO L87 Difference]: Start difference. First operand 533 states and 776 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 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) [2022-04-07 00:50:11,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:11,929 INFO L93 Difference]: Finished difference Result 1555 states and 2264 transitions. [2022-04-07 00:50:11,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 00:50:11,929 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 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 47 [2022-04-07 00:50:11,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:11,933 INFO L225 Difference]: With dead ends: 1555 [2022-04-07 00:50:11,933 INFO L226 Difference]: Without dead ends: 1036 [2022-04-07 00:50:11,934 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 [2022-04-07 00:50:11,934 INFO L913 BasicCegarLoop]: 409 mSDtfsCounter, 419 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:11,934 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [419 Valid, 416 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-07 00:50:11,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2022-04-07 00:50:11,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 535. [2022-04-07 00:50:11,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 530 states have (on average 1.460377358490566) internal successors, (774), 530 states have internal predecessors, (774), 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) [2022-04-07 00:50:11,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 778 transitions. [2022-04-07 00:50:11,966 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 778 transitions. Word has length 47 [2022-04-07 00:50:11,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:11,966 INFO L478 AbstractCegarLoop]: Abstraction has 535 states and 778 transitions. [2022-04-07 00:50:11,966 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 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) [2022-04-07 00:50:11,966 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 778 transitions. [2022-04-07 00:50:11,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-04-07 00:50:11,967 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:11,967 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:11,967 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-07 00:50:11,967 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:11,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:11,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1945652331, now seen corresponding path program 1 times [2022-04-07 00:50:11,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:11,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1703050524] [2022-04-07 00:50:11,968 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:50:11,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1945652331, now seen corresponding path program 2 times [2022-04-07 00:50:11,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:11,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104070855] [2022-04-07 00:50:11,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:11,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:11,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:12,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:12,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:12,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 00:50:12,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:12,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104070855] [2022-04-07 00:50:12,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104070855] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:12,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:12,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:12,015 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:12,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1703050524] [2022-04-07 00:50:12,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1703050524] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:12,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:12,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:12,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808903603] [2022-04-07 00:50:12,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:12,016 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:50:12,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:12,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:50:12,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:50:12,017 INFO L87 Difference]: Start difference. First operand 535 states and 778 transitions. Second operand has 6 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 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) [2022-04-07 00:50:12,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:12,387 INFO L93 Difference]: Finished difference Result 1175 states and 1726 transitions. [2022-04-07 00:50:12,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:50:12,387 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 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 47 [2022-04-07 00:50:12,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:12,390 INFO L225 Difference]: With dead ends: 1175 [2022-04-07 00:50:12,390 INFO L226 Difference]: Without dead ends: 642 [2022-04-07 00:50:12,391 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 [2022-04-07 00:50:12,391 INFO L913 BasicCegarLoop]: 181 mSDtfsCounter, 630 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 630 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:12,392 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [630 Valid, 198 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-07 00:50:12,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2022-04-07 00:50:12,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 595. [2022-04-07 00:50:12,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 590 states have (on average 1.4508474576271186) internal successors, (856), 590 states have internal predecessors, (856), 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) [2022-04-07 00:50:12,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 860 transitions. [2022-04-07 00:50:12,443 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 860 transitions. Word has length 47 [2022-04-07 00:50:12,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:12,443 INFO L478 AbstractCegarLoop]: Abstraction has 595 states and 860 transitions. [2022-04-07 00:50:12,443 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 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) [2022-04-07 00:50:12,443 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 860 transitions. [2022-04-07 00:50:12,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-04-07 00:50:12,444 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:12,445 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:12,445 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-07 00:50:12,445 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:12,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:12,445 INFO L85 PathProgramCache]: Analyzing trace with hash 427057800, now seen corresponding path program 1 times [2022-04-07 00:50:12,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:12,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [756413596] [2022-04-07 00:50:12,458 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:12,458 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:12,458 INFO L85 PathProgramCache]: Analyzing trace with hash 427057800, now seen corresponding path program 2 times [2022-04-07 00:50:12,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:12,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814412606] [2022-04-07 00:50:12,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:12,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:12,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:12,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:12,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:12,516 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-07 00:50:12,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:12,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814412606] [2022-04-07 00:50:12,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814412606] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:12,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:12,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:12,517 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:12,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [756413596] [2022-04-07 00:50:12,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [756413596] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:12,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:12,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:12,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968642829] [2022-04-07 00:50:12,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:12,518 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:50:12,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:12,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:50:12,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:50:12,519 INFO L87 Difference]: Start difference. First operand 595 states and 860 transitions. Second operand has 6 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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) [2022-04-07 00:50:12,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:12,828 INFO L93 Difference]: Finished difference Result 988 states and 1434 transitions. [2022-04-07 00:50:12,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:50:12,828 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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 76 [2022-04-07 00:50:12,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:12,830 INFO L225 Difference]: With dead ends: 988 [2022-04-07 00:50:12,830 INFO L226 Difference]: Without dead ends: 381 [2022-04-07 00:50:12,831 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 [2022-04-07 00:50:12,832 INFO L913 BasicCegarLoop]: 176 mSDtfsCounter, 706 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:12,832 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [706 Valid, 193 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:50:12,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2022-04-07 00:50:12,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 368. [2022-04-07 00:50:12,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 363 states have (on average 1.440771349862259) internal successors, (523), 363 states have internal predecessors, (523), 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) [2022-04-07 00:50:12,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 527 transitions. [2022-04-07 00:50:12,859 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 527 transitions. Word has length 76 [2022-04-07 00:50:12,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:12,859 INFO L478 AbstractCegarLoop]: Abstraction has 368 states and 527 transitions. [2022-04-07 00:50:12,859 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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) [2022-04-07 00:50:12,859 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 527 transitions. [2022-04-07 00:50:12,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-04-07 00:50:12,860 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:12,860 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:12,860 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-07 00:50:12,860 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:12,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:12,861 INFO L85 PathProgramCache]: Analyzing trace with hash 577934568, now seen corresponding path program 1 times [2022-04-07 00:50:12,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:12,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [204090867] [2022-04-07 00:50:12,864 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:12,864 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:12,864 INFO L85 PathProgramCache]: Analyzing trace with hash 577934568, now seen corresponding path program 2 times [2022-04-07 00:50:12,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:12,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253943829] [2022-04-07 00:50:12,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:12,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:12,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:12,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:12,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:12,893 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-04-07 00:50:12,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:12,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253943829] [2022-04-07 00:50:12,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253943829] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:12,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:12,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:12,893 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:12,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [204090867] [2022-04-07 00:50:12,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [204090867] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:12,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:12,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:12,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595556778] [2022-04-07 00:50:12,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:12,894 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:50:12,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:12,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:50:12,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 00:50:12,895 INFO L87 Difference]: Start difference. First operand 368 states and 527 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 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) [2022-04-07 00:50:13,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:13,098 INFO L93 Difference]: Finished difference Result 736 states and 1063 transitions. [2022-04-07 00:50:13,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 00:50:13,098 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 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 86 [2022-04-07 00:50:13,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:13,100 INFO L225 Difference]: With dead ends: 736 [2022-04-07 00:50:13,100 INFO L226 Difference]: Without dead ends: 395 [2022-04-07 00:50:13,100 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 [2022-04-07 00:50:13,101 INFO L913 BasicCegarLoop]: 217 mSDtfsCounter, 254 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:13,101 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [254 Valid, 224 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:50:13,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2022-04-07 00:50:13,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 391. [2022-04-07 00:50:13,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 386 states have (on average 1.427461139896373) internal successors, (551), 386 states have internal predecessors, (551), 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) [2022-04-07 00:50:13,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 555 transitions. [2022-04-07 00:50:13,130 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 555 transitions. Word has length 86 [2022-04-07 00:50:13,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:13,130 INFO L478 AbstractCegarLoop]: Abstraction has 391 states and 555 transitions. [2022-04-07 00:50:13,130 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 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) [2022-04-07 00:50:13,130 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 555 transitions. [2022-04-07 00:50:13,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-04-07 00:50:13,131 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:13,131 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:13,131 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-07 00:50:13,131 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:13,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:13,131 INFO L85 PathProgramCache]: Analyzing trace with hash -839822446, now seen corresponding path program 1 times [2022-04-07 00:50:13,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:13,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1090749725] [2022-04-07 00:50:13,135 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:13,135 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:13,135 INFO L85 PathProgramCache]: Analyzing trace with hash -839822446, now seen corresponding path program 2 times [2022-04-07 00:50:13,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:13,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632291451] [2022-04-07 00:50:13,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:13,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:13,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:13,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:13,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:13,178 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-04-07 00:50:13,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:13,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632291451] [2022-04-07 00:50:13,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632291451] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:13,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:13,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:13,180 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:13,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1090749725] [2022-04-07 00:50:13,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1090749725] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:13,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:13,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:13,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535038486] [2022-04-07 00:50:13,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:13,180 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:50:13,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:13,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:50:13,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 00:50:13,181 INFO L87 Difference]: Start difference. First operand 391 states and 555 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 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) [2022-04-07 00:50:13,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:13,404 INFO L93 Difference]: Finished difference Result 1104 states and 1580 transitions. [2022-04-07 00:50:13,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 00:50:13,405 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 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 108 [2022-04-07 00:50:13,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:13,407 INFO L225 Difference]: With dead ends: 1104 [2022-04-07 00:50:13,407 INFO L226 Difference]: Without dead ends: 740 [2022-04-07 00:50:13,408 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 [2022-04-07 00:50:13,409 INFO L913 BasicCegarLoop]: 247 mSDtfsCounter, 525 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:13,409 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [525 Valid, 254 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-07 00:50:13,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2022-04-07 00:50:13,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 738. [2022-04-07 00:50:13,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 738 states, 733 states have (on average 1.4229195088676672) internal successors, (1043), 733 states have internal predecessors, (1043), 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) [2022-04-07 00:50:13,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 738 states to 738 states and 1047 transitions. [2022-04-07 00:50:13,500 INFO L78 Accepts]: Start accepts. Automaton has 738 states and 1047 transitions. Word has length 108 [2022-04-07 00:50:13,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:13,500 INFO L478 AbstractCegarLoop]: Abstraction has 738 states and 1047 transitions. [2022-04-07 00:50:13,501 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 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) [2022-04-07 00:50:13,501 INFO L276 IsEmpty]: Start isEmpty. Operand 738 states and 1047 transitions. [2022-04-07 00:50:13,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-04-07 00:50:13,502 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:13,502 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:13,502 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-07 00:50:13,502 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:13,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:13,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1426628460, now seen corresponding path program 1 times [2022-04-07 00:50:13,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:13,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1083057035] [2022-04-07 00:50:13,506 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:13,506 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:13,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1426628460, now seen corresponding path program 2 times [2022-04-07 00:50:13,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:13,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140939934] [2022-04-07 00:50:13,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:13,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:13,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-07 00:50:13,522 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-07 00:50:13,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-07 00:50:13,565 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-04-07 00:50:13,565 INFO L130 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found a feasible trace [2022-04-07 00:50:13,565 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-07 00:50:13,568 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-07 00:50:13,569 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-07 00:50:13,571 INFO L719 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2] [2022-04-07 00:50:13,573 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-04-07 00:50:13,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.04 12:50:13 BoogieIcfgContainer [2022-04-07 00:50:13,597 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-07 00:50:13,597 INFO L158 Benchmark]: Toolchain (without parser) took 6502.16ms. Allocated memory was 174.1MB in the beginning and 343.9MB in the end (delta: 169.9MB). Free memory was 122.9MB in the beginning and 232.8MB in the end (delta: -109.8MB). Peak memory consumption was 61.1MB. Max. memory is 8.0GB. [2022-04-07 00:50:13,597 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 174.1MB. Free memory is still 139.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-07 00:50:13,597 INFO L158 Benchmark]: CACSL2BoogieTranslator took 351.84ms. Allocated memory was 174.1MB in the beginning and 225.4MB in the end (delta: 51.4MB). Free memory was 122.7MB in the beginning and 197.5MB in the end (delta: -74.8MB). Peak memory consumption was 13.0MB. Max. memory is 8.0GB. [2022-04-07 00:50:13,598 INFO L158 Benchmark]: Boogie Preprocessor took 46.41ms. Allocated memory is still 225.4MB. Free memory was 197.5MB in the beginning and 194.9MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-04-07 00:50:13,598 INFO L158 Benchmark]: RCFGBuilder took 549.36ms. Allocated memory is still 225.4MB. Free memory was 194.9MB in the beginning and 165.0MB in the end (delta: 29.9MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2022-04-07 00:50:13,598 INFO L158 Benchmark]: TraceAbstraction took 5549.66ms. Allocated memory was 225.4MB in the beginning and 343.9MB in the end (delta: 118.5MB). Free memory was 164.5MB in the beginning and 232.8MB in the end (delta: -68.3MB). Peak memory consumption was 51.2MB. Max. memory is 8.0GB. [2022-04-07 00:50:13,599 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 174.1MB. Free memory is still 139.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 351.84ms. Allocated memory was 174.1MB in the beginning and 225.4MB in the end (delta: 51.4MB). Free memory was 122.7MB in the beginning and 197.5MB in the end (delta: -74.8MB). Peak memory consumption was 13.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 46.41ms. Allocated memory is still 225.4MB. Free memory was 197.5MB in the beginning and 194.9MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 549.36ms. Allocated memory is still 225.4MB. Free memory was 194.9MB in the beginning and 165.0MB in the end (delta: 29.9MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. * TraceAbstraction took 5549.66ms. Allocated memory was 225.4MB in the beginning and 343.9MB in the end (delta: 118.5MB). Free memory was 164.5MB in the beginning and 232.8MB in the end (delta: -68.3MB). Peak memory consumption was 51.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 654]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L659] int s ; [L660] int tmp ; [L664] s = 8464 [L665] CALL ssl3_accept(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__hit = __VERIFIER_nondet_int() ; [L32] int s__rwstate ; [L33] int s__init_buf___0 = 1; [L34] int s__debug = __VERIFIER_nondet_int() ; [L35] int s__shutdown ; [L36] int s__cert = __VERIFIER_nondet_int() ; [L37] int s__options = __VERIFIER_nondet_int() ; [L38] int s__verify_mode = __VERIFIER_nondet_int() ; [L39] int s__session__peer = __VERIFIER_nondet_int() ; [L40] int s__cert__pkeys__AT0__privatekey = __VERIFIER_nondet_int() ; [L41] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L42] int s__ctx__stats__sess_accept_renegotiate = __VERIFIER_nondet_int() ; [L43] int s__ctx__stats__sess_accept = __VERIFIER_nondet_int() ; [L44] int s__ctx__stats__sess_accept_good = __VERIFIER_nondet_int() ; [L45] int s__s3__tmp__cert_request ; [L46] int s__s3__tmp__reuse_message ; [L47] int s__s3__tmp__use_rsa_tmp ; [L48] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L49] int s__s3__tmp__new_cipher__algorithms ; [L50] int s__s3__tmp__next_state___0 ; [L51] int s__s3__tmp__new_cipher__algo_strength ; [L52] int s__session__cipher ; [L53] int buf ; [L54] unsigned long l ; [L55] unsigned long Time ; [L56] unsigned long tmp ; [L57] int cb ; [L58] long num1 = __VERIFIER_nondet_long() ; [L59] int ret ; [L60] int new_state ; [L61] int state ; [L62] int skip ; [L63] int got_new_session ; [L64] int tmp___1 = __VERIFIER_nondet_int() ; [L65] int tmp___2 = __VERIFIER_nondet_int() ; [L66] int tmp___3 = __VERIFIER_nondet_int() ; [L67] int tmp___4 = __VERIFIER_nondet_int() ; [L68] int tmp___5 = __VERIFIER_nondet_int() ; [L69] int tmp___6 = __VERIFIER_nondet_int() ; [L70] int tmp___7 = __VERIFIER_nondet_int() ; [L71] long tmp___8 = __VERIFIER_nondet_long() ; [L72] int tmp___9 = __VERIFIER_nondet_int() ; [L73] int tmp___10 = __VERIFIER_nondet_int() ; [L74] int blastFlag ; [L75] int __cil_tmp55 ; [L76] unsigned long __cil_tmp56 ; [L77] unsigned long __cil_tmp57 ; [L78] unsigned long __cil_tmp58 ; [L79] unsigned long __cil_tmp59 ; [L80] int __cil_tmp60 ; [L81] unsigned long __cil_tmp61 ; [L84] s__state = initial_state [L85] blastFlag = 0 [L86] tmp = __VERIFIER_nondet_int() [L87] Time = tmp [L88] cb = 0 [L89] ret = -1 [L90] skip = 0 [L91] got_new_session = 0 [L92] COND TRUE s__info_callback != 0 [L93] cb = s__info_callback [L99] s__in_handshake ++ [L100] COND FALSE !(tmp___1 + 12288) [L105] COND FALSE !(s__cert == 0) [L109] COND TRUE 1 [L111] state = s__state [L112] COND FALSE !(s__state == 12292) [L115] COND FALSE !(s__state == 16384) [L118] COND FALSE !(s__state == 8192) [L121] COND FALSE !(s__state == 24576) [L124] COND FALSE !(s__state == 8195) [L127] COND FALSE !(s__state == 8480) [L130] COND FALSE !(s__state == 8481) [L133] COND FALSE !(s__state == 8482) [L136] COND TRUE s__state == 8464 [L282] s__shutdown = 0 [L283] ret = __VERIFIER_nondet_int() [L284] COND TRUE blastFlag == 0 [L285] blastFlag = 1 [L287] COND FALSE !(ret <= 0) [L290] got_new_session = 1 [L291] s__state = 8496 [L292] s__init_num = 0 [L611] s__s3__tmp__reuse_message = __VERIFIER_nondet_int() [L612] COND FALSE !(! s__s3__tmp__reuse_message) [L643] skip = 0 [L109] COND TRUE 1 [L111] state = s__state [L112] COND FALSE !(s__state == 12292) [L115] COND FALSE !(s__state == 16384) [L118] COND FALSE !(s__state == 8192) [L121] COND FALSE !(s__state == 24576) [L124] COND FALSE !(s__state == 8195) [L127] COND FALSE !(s__state == 8480) [L130] COND FALSE !(s__state == 8481) [L133] COND FALSE !(s__state == 8482) [L136] COND FALSE !(s__state == 8464) [L139] COND FALSE !(s__state == 8465) [L142] COND FALSE !(s__state == 8466) [L145] COND TRUE s__state == 8496 [L296] ret = __VERIFIER_nondet_int() [L297] COND TRUE blastFlag == 1 [L298] blastFlag = 2 [L300] COND FALSE !(ret <= 0) [L303] COND FALSE !(\read(s__hit)) [L306] s__state = 8512 [L308] s__init_num = 0 [L611] s__s3__tmp__reuse_message = __VERIFIER_nondet_int() [L612] COND FALSE !(! s__s3__tmp__reuse_message) [L643] skip = 0 [L109] COND TRUE 1 [L111] state = s__state [L112] COND FALSE !(s__state == 12292) [L115] COND FALSE !(s__state == 16384) [L118] COND FALSE !(s__state == 8192) [L121] COND FALSE !(s__state == 24576) [L124] COND FALSE !(s__state == 8195) [L127] COND FALSE !(s__state == 8480) [L130] COND FALSE !(s__state == 8481) [L133] COND FALSE !(s__state == 8482) [L136] COND FALSE !(s__state == 8464) [L139] COND FALSE !(s__state == 8465) [L142] COND FALSE !(s__state == 8466) [L145] COND FALSE !(s__state == 8496) [L148] COND FALSE !(s__state == 8497) [L151] COND TRUE s__state == 8512 [L313] s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() [L314] __cil_tmp56 = (unsigned long )s__s3__tmp__new_cipher__algorithms [L315] COND TRUE __cil_tmp56 + 256UL [L316] skip = 1 [L327] s__state = 8528 [L328] s__init_num = 0 [L611] s__s3__tmp__reuse_message = __VERIFIER_nondet_int() [L612] COND FALSE !(! s__s3__tmp__reuse_message) [L643] skip = 0 [L109] COND TRUE 1 [L111] state = s__state [L112] COND FALSE !(s__state == 12292) [L115] COND FALSE !(s__state == 16384) [L118] COND FALSE !(s__state == 8192) [L121] COND FALSE !(s__state == 24576) [L124] COND FALSE !(s__state == 8195) [L127] COND FALSE !(s__state == 8480) [L130] COND FALSE !(s__state == 8481) [L133] COND FALSE !(s__state == 8482) [L136] COND FALSE !(s__state == 8464) [L139] COND FALSE !(s__state == 8465) [L142] COND FALSE !(s__state == 8466) [L145] COND FALSE !(s__state == 8496) [L148] COND FALSE !(s__state == 8497) [L151] COND FALSE !(s__state == 8512) [L154] COND FALSE !(s__state == 8513) [L157] COND TRUE s__state == 8528 [L332] s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() [L333] l = (unsigned long )s__s3__tmp__new_cipher__algorithms [L335] __cil_tmp57 = (unsigned long )s__options [L336] COND TRUE __cil_tmp57 + 2097152UL [L337] s__s3__tmp__use_rsa_tmp = 1 [L342] COND TRUE \read(s__s3__tmp__use_rsa_tmp) [L369] ret = __VERIFIER_nondet_int() [L370] COND FALSE !(blastFlag == 6) [L373] COND FALSE !(ret <= 0) [L390] s__state = 8544 [L391] s__init_num = 0 [L611] s__s3__tmp__reuse_message = __VERIFIER_nondet_int() [L612] COND TRUE ! s__s3__tmp__reuse_message [L613] COND TRUE ! skip [L614] COND TRUE state == 8528 [L615] COND TRUE s__state == 8544 [L616] COND TRUE tmp___7 != 1024 [L617] COND TRUE tmp___7 != 512 [L618] COND TRUE __cil_tmp58 != 4294967294 [L619] COND TRUE l != 4294967266 [L654] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 165 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.5s, OverallIterations: 15, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5960 SdHoareTripleChecker+Valid, 2.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5959 mSDsluCounter, 3317 SdHoareTripleChecker+Invalid, 2.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 136 mSDsCounter, 355 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4018 IncrementalHoareTripleChecker+Invalid, 4373 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 355 mSolverCounterUnsat, 3181 mSDtfsCounter, 4018 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=738occurred in iteration=14, InterpolantAutomatonStates: 65, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 14 MinimizatonAttempts, 751 StatesRemovedByMinimization, 13 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! [2022-04-07 00:50:13,632 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...